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MP338850V, 8-String White LED Driver

MP3388 Rev. 1.0 www.MonolithicPower.com 112/16/2011 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

2011 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP3388 is a step-up converter with8-channel current sources designed for drivingthe white LED arrays for large size LCD panelbacklighting applications.

The MP3388 uses current mode, fixed frequencyarchitecture. The switching frequency can beselected at 1.25MHz or 625kHz. It generates anoutput voltage up to 50V from a 4.5V to 25V inputsupply. The MP3388 independently regulates thecurrent in each LED string to the user programmedvalue set by an external current setting resistor.

The MP3388 applies 8 internal current sources ineach LED string terminal to achieve a currentbalance of 3% regulation accuracy betweenstrings. Its low 600mV regulation voltage on LEDcurrent sources reduces power loss and improvesefficiency.

The MP3388 features external PWM dimming orDC input PWM dimming, which allows the flexiblecontrol of the backlighting luminance. The dimmingPWM signal can be generated internally, and thedimming frequency is programmed by an externalsetting capacitor.

FEATURES

High Efficiency and Small Size 4.5V to 25V Input Voltage Range

50V Maximum Step-up Voltage

Balanced Driver for 8 Strings of WLED

3% Current Matching Accuracy BetweenStrings

Selectable Switching Frequency: 1.25MHz or625kHz

PWM or DC Input Burst PWM Dimming

Programmable Over-voltage Protection

Under Voltage Lockout

Open and Short LED protection

Thermal Shutdown

Small QFN24 (4x4mm) and 28 pin SOICpackages

Halogens Free

APPLICATIONS

Notebook PC

Small LCD TV

Handy Terminals Display

Automotive System and Tablet Computer

All MPS parts are lead-free and adhere to the RoHS directive. For MPS green

status, please visit MPS website under Quality Assurance.MPS and The Future of Analog IC Technology are Registered Trademarks ofMonolithic Power Systems, Inc.

TYPICAL APPLICATIONVIN

4.5V~25V

MP3388

VCC VIN COMP VFAULT SW2SW1

24 23 22 21 20 19

EN

OSC

FSET

PWMO

GND

PWMI

LED8 LED7 LED6 LED5 LED4ISET

PGND1

PGND2

OVP

LED1

LED2

LED3

7 8 9 10 11 12

1

2

3

4

5

6

18

17

16

15

14

13

Enable

PWM

DIMMING

NC

L1 D1M1

C1

C3

C2R1

R2

RSET

C4

C5 C6

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MP3388- 50V, 8-STRING WHITE LED DRIVERS



ORDERING INFORMATION

Part Number Package Top Marking Free Air Temperature (TA)

MP3388DR* QFN24 (4x4mm) 3388DR -40C TO +85C

MP3388EY SOIC28 MP3388EY -20C TO +85C

* For Tape & Reel, add suffix Z (e.g. MP3388DRZ).

For RoHS Compliant Packaging, add suffix LF (e.g. MP3388DRLFZ)

PACKAGE REFERENCE

TOP VIEW

1

2

3

4

5

6

18

17

16

15

14

13

EN

OSC

FSET

PWMO

GND

PWMI

PGND1

PGND2

OVP

LED1

LED2

LED3

LED8

LED7

LED6

LED5

ISET

LED4

VCC

VIN

COMP

VFAULT

SW1

SW2

7 8 9 10 11 12

24 23 22 21 20 19

Exposed Pad

Connect to GND

1

2

3

4

5

6

7

8

9

10

11

12

13

14

28

27

26

25

24

23

22

21

20

19

18

17

16

15

TOP VIEW

VFAULT

COMP

VIN

VCC

EN

OSC

FSET

PWMO

GND

PWMI

LED8

LED7

LED6

LED5

SW1

NC

SW2

NC

PGND1

PGND2

OVP

LED1

LED2

LED3

LED4

NC

ISET

NC

QFN24 (4X4mm) SOIC28

ABSOLUTE MAXIMUM RATINGS (1)VIN .................................................-0.3V to +30VVVFAULT........................................... VIN - 6V to VINVSW................................................-0.3V to +50VVLED1 to VLED8.................................-0.3V to +50VAll Other Pins ..................................-0.3V to +6VContinuous Power Dissipation (TA = +25C)

(2)QFN24 (4x4mm).....2.9WSOIC28 ....2.1W

Junction Temperature...............................150C

Lead Temperature ....................................260C

Storage Temperature............... -65C to +150C

Recommended Operating Conditions(3)Supply Voltage VIN ...........................4.5V to 25V

Maximum Junction Temp. (TJ)..................125C

Thermal Resistance(4)

JA JC

QFN24 (4x4mm) ...................42 .......9 ....C/W

SOIC28 .................................60 ...... 30...C/W

Notes:1) Exceeding these ratings may damage the device.2) The maximum allowable power dissipation is a function of the

maximum junction temperature TJ (MAX), the junction-to-ambientthermal resistance JA, and the ambient temperature TA. Themaximum allowable continuous power dissipation at anyambient temperature is calculated by PD (MAX) = (TJ (MAX)-TA)/JA.Exceeding the maximum allowable power dissipation will

cause excessive die temperature, and the regulator will go intothermal shutdown. Internal thermal shutdown circuitry protectsthe device from permanent damage.

3) The device is not guaranteed to function outside of itsoperation conditions.

4) Measured on JESD51-7, 4-layer PCB.

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ELECTRICAL CHARACTERISTICSVIN =12V, VEN = 5V, TA = +25 C, unless otherwise noted.

Parameters Symbol Condition Min Typ Max Units

Operating Input Voltage VIN 4.5 25 V

Supply Current (Quiescent) IQ VIN=12V, VEN=5V, no load. 1.8 mA

Supply Current (Shutdown) IST VEN=0V, VIN=12V 2 A

LDO Output Voltage VCCVEN=5V, 6V

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ELECTRICAL CHARACTERISTICS (continued)VIN =12V, VEN = 5V, TA = +25 C, unless otherwise noted.

Parameters Symbol Condition Min Typ Max Units

LED CURRENT REGULATION

LEDX Average Current ILED RISET=60.4k 19.2 19.9 20.6 mA

Current Matching(5)

ILED=20mA 3 %

Maximum LED Current per String ILEDmax RISET=40.2 k 30 mA

LEDX Regulation Voltage VLEDX ILED=20mA 600 mV

PROTECTION

OVP Over Voltage Threshold VOVP_OV Rising Edge 1.17 1.23 1.3 V

OVP UVLO threshold VOVP_UV Step-up Converter Fails 48 70 102 mV

LEDX Over Voltage Threshold VLEDX_OV VIN>5.5V 5.1 5.5 5.9 V

LEDX UVLO Threshold VLEDX_UV 130 175 230 mV

Thermal Shutdown Threshold TST 150

LEDX Over Voltage Fault Timer 1.3 1.6 1.9 ms

VFAULT Pull Down Current IFAULT 40 55 70 A

VFAULT Blocking-Off Voltage(with Respect to VIN)

VFAULT VIN =12V, VIN-VFAULT 6 V

Notes:5) Matching is defined as the difference of the maximum to minimum current divided by 2 times average currents.

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PIN FUNCTIONS

QFN24 SOIC28 Name Description

1 5 EN Enable Control Input. Do not let this pin floating.

2 6 OSC

Switching Frequency Selection Input. When float this pin or connect this pin to

VCC, the step-up converter switching frequency is 1.25MHz. When connect thispin to GND, the step-up converter switching frequency is 625kHz.

3 7 FSETDimming PWM Frequency Setting. Connect a capacitor between FSET and GNDto set the DPWM frequency by the equation: fDPWM=3.5uF/CFSET.

4 8 PWMO

PWM Filter Output. To use external PWM dimming mode, connect a capacitorbetween PWMO and GND to form a low-pass filter with an internal 400k resistor.It filters the external PWM logic signal on PWMI pin into a DC signal whose level isinversely proportional to the duty-cycle of the input PWM signal. Then the DCsignal is converted to a DPWM dimming signal with the same duty-cycle as theexternal PWM signal. To use DC input PWM dimming mode, directly apply a DCvoltage from 0.2V to 1.2V on PWMO pin for dimming PWM duty cycle control. TheDC input PWM dimming polarity is negative.

5 9 GND Analog Ground.

6 10 PWMI

PWM Signal Input. To use the external PWM dimming mode, apply a PWM signalon this pin for brightness control. This signal is filtered and its duty cycle isconverted into a DC signal to calculate the DPWM duty cycle. And the DPWM dutycycle equals to the input PWM duty cycle. To use DC input PWM dimming mode,float this pin.

7 11 LED8LED String 8 Current Input. This pin is the open-drain output of an internaldimming control switch. Connect the LED String 8 cathode to this pin. If this stringis not used, connect Vout to this pin.




11 16 ISETLED Current Setting. Tie a current setting resistor from this pin to ground toprogram the current in each LED string. ILED = 1000 x 1.22V /( RSET+1k)




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PIN FUNCTIONS(continued)

QFN24 SOIC28 Name Description

15 21 LED1

LED String 1 Current Input. This pin is the open-drain output of an internaldimming control switch. Connect the LED String 1 cathode to this pin. If thisstring is not used, connect Vout to this pin.

16 22 OVP

Over-voltage Protection Input. Connect a resistor divider from output to thispin to program the OVP threshold. When this pin voltage reaches 1.23V, theMP3388 triggers OV Protection mode.

17 23 PGND2 Step-up Converter Power Ground.

18 24 PGND1Step-up Converter Power Ground. PGND1 and PGND2 should be shortedexternally.

19 28 SW2

Step-up Converter Power Switch Output. SW2 is the drain of the internalMOSFET switch. Connect the power inductor and output rectifier to SW2.SW2 can swing between GND and 50V. SW1 and SW2 should be shortedexternally.

20 26 SW1

Step-up Converter Power Switch Output. SW1 is the drain of the internalMOSFET switch. Connect the power inductor and output rectifier to SW1.

SW1 can swing between GND and 50V. SW1 and SW2 should be shortedexternally.

21 1 VFAULTFault Disconnection Switch Driver Output. When the system starts upnormally, this pin turns on the external PMOS. When the MP3388 is disabled,the external PMOS is turned off to disconnect the input and output.

22 2 COMPStep-up Converter Compensation Pin. This pin is used to compensate theregulation control loop. Connect a capacitor or a series RC network fromCOMP to GND.

23 3 VINSupply Input. VIN supplies the power to the MP3388 chip. Drive VIN with a4.5V to 25V power source. Must be locally bypassed.

24 4 VCC

The Internal 5V Linear Regulator Output. VCC provides power supply for theinternal MOSFET switch gate driver and the internal control circuitry. BypassVCC to GND with a ceramic capacitor. If VIN is less than 5.5V, apply anexternal 5V supply directly on VCC.

15, 17,25, 27

NC No connect

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TYPICAL PERFORMANCE CHARACTERISTICSVIN =15V, 10 LEDs in series, 8 strings parallel, 20mA/string, unless otherwise noted.

70

75

80

85

90

95

100

4 9 14 19 24 29

INPUT VOLTAGE (V)

EFFICIENCY(%)

Efficiency vs. Input Voltage Steady State

Vsw20V/div

Vsw20V/div

VIN10V/div

VLED8500mV/div

VOUT/AC500mV/div

VOUT20V/div

ILED100mA/div

Vsw20V/div

VLED820V/div

VOUT20V/div

ILED100mA/div

ILED100mA/div

Vsw20V/div

VEN5V/div

VOUT20V/div

ILED100mA/div

Vsw20V/div

VPWMI5V/div

VOUT20V/div

ILED100mA/div

Vsw20V/div

VFAULT5V/div

VOUT20V/div

ILED100mA/div

Vsw20V/div

VFAULT10V/div

VOUT20V/div

ILED100mA/div

400ns/div 2ms/div

2ms/div

1ms/div

200us/div

200us/div

400ms/div

Vin Startup

Ven Startup PWM DimmingfPWM=2kHz, DPWM=50%

Open LED Protectionopen all LED strings at working

Short LED Protecton

short Vout to LEDx at working

Short LED Protection

short Vout to GND at working

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FUNCTION DIAGRAM

ControlLogic

+

-

Current Sense

Amplifier

+

-

PWM

Comparator

Oscillator+

- 1.23V

OV

Comparator

+

-

+

-

LED1

+

-

DPWM

Oscillator

DPWM

Comparator400k?

1.2V

0.2V

Current Control

+

-

1.22V

Max

Min

Feedback

Control

5.5V

EA

LED OV

Comparator

Short String

Protection

Regulator

LED8

OVP

PGND

GND

VIN

VCC SW

PWMO

PWMI

FSET

ISET

COMP

OSC

VFAULT

ENEnable

Control

600mV

Figure 1MP3388 Function Diagram

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OPERATION

The MP3388 employs a constant frequency, peakcurrent mode step-up converter and 8-channelsregulated current sources to regulate the array of8 strings white LEDs. The operation of the

MP3388 can be understood by referring to theblock diagram of Figure 1.

Internal 5V Regulator

The MP3388 includes an internal linear regulator(VCC). When VIN is greater than 5.5V, thisregulator offers a 5V power supply for the internalMOSFET switch gate driver and the internalcontrol circuitry. The VCC voltage drops to 0Vwhen the chip shuts down. In the application ofVIN smaller than 5.5V, tie VCC and VIN together.The MP3388 features Under Voltage Lockout.

The chip is disabled until VCC exceeds the UVLOthreshold. And the hysteresis of UVLO isapproximately 200mV.

System Startup

When the MP3388 is enabled, the chip checksthe topology connection first. The VFAULT pindrives the external Fault Disconnection PMOS toturn on slowly. And after 400us delay, the chipmonitors the OVP pin to see if the Schottky diodeis not connected or the boost output is short toGND. If the OVP voltage is lower than 70mV, the

chip will be disabled and the external PMOS isturned off together. The MP3388 will also checkother safety limits, including UVLO,and OTP afterthe OVP test is passed. If they are all in function,it then starts boosting the step-up converter withan internal soft-start.

It is recommended on the start up sequence thatthe enable signal comes after input voltage andPWM dimming signal established.

Step-up Converter

The converter operation frequency is selectable(1.25MHz or 625kHz), which is helpful foroptimizing the external components sizes andimproving the efficiency.

At the beginning of each cycle, the power FET isturned with the internal clock. To preventsub-harmonic oscillations at duty cycles greaterthan 50 percent, a stabilizing ramp is added to the

output of the current sense amplifier and theresult is fed into the PWM comparator. When thisresult voltage reaches the output voltage of theerror amplifier (VCOMP) the power FET is turned

off.

The voltage at the output of the internal erroramplifier is an amplified signal of the differencebetween the 600mV reference voltage and thefeedback voltage. The converter automaticallychooses the lowest active LEDX pin voltage forproviding enough bus voltage to power all theLED arrays.

If the feedback voltage drops below the 600mVreference, the output of the error amplifierincreases. It results in more current flowing

through the power FET, thus increasing thepower delivered to the output. In this way it formsa close loop to make the output voltage inregulation.

At light-load or Vout near to Vin operation, theconverter runs into the pulse-skipping mode, theFET is turned on for a minimum on-time ofapproximately 100ns, and then the converterdischarges the power to the output in the remnantperiod. The FET will keep off until the outputvoltage needs to be boosted again.

Dimming ControlThe MP3388 provides several PWM dimmingmethods: external PWM signal from PWMI pin orDC input PWM Dimming mode (see Figure 2).These methods results in PWM chopping of thecurrent in the LEDs for all 8 channels to provideLED control.

+

-

DPWM

Oscillator

DPWM

Comparator400k?

1.2V

0.2V

PWMOPWMI

FSET

Ex-PWM Input

CPWMO

CFSET

DPWM Output

1.2V

0.2V

DC Input

Figure 2PWM Dimming Method

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When applying a PWM signal to the PWMI pin,the MP3388 generates a DC voltage on PWMOpin which is reversely proportional to the dutycycle of the PWMI pin signal. By comparing thePWMO pin signal with the FSET pin trianglewaveform, the converter gets a low frequency

chopping signal that the duty cycle is same as theinput signal. This low frequency chopping signalwill modulate the LED current.

A DC analog signal can be directly applied to thePWMO pin to modulate the LED current. And theDC signal is then converted to a DPWM dimmingsignal at the setting oscillation frequency. Thepolarity is negative.

The brightness of the LED array is proportional tothe duty cycle of the DPWM signal. The DPWMsignal frequency is set by the cap at the FSET

pin.

Open String Protection

The open string protection is achieved throughthe over voltage protection. If one or more stringsare open, the respective LEDX pins are pulled toground and the IC keeps charging the outputvoltage until it reach OVP threshold. Then thepart will mark off the open strings whose LEDXpin voltage is less than 175mV. Once the mark-offoperation completes, the remaining LED strings

will force the output voltage back into tightregulation. The string with the highest voltagedrop is the ruling string during output regulation.

The MP3388 always tries to light at least onestring and if all strings in use are open, theMP3388 shuts down the step-up converter. Thepart will maintain mark-off information until thepart shuts down.

Short String Protection

The MP3388 monitors the LEDX pin voltage tojudge if the short string occurs. If one or morestrings are short, the respective LEDX pins will bepulled up to the boost output and tolerate highvoltage stress. If the LEDX pin voltage is higherthan 5.5V, the short string condition is detectedon the respective string. When the short stringfault (LEDX over-voltage fault) continues forgreater than 1.6ms, the string is marked off anddisabled. Once a string is marked off, its currentregulation is forced to disconnect from the outputvoltage loop regulation. The marked-off LEDstrings will be shut off totally until the part restarts.If all strings in use are short, the MP3388 will shutdown the step-up converter.

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APPLICATION INFORMATION

Selecting the Switching Frequency

The switching frequency of the step-up converteris alternative for 1.25MHz or 625kHz. A bi-levelSwitching Frequency Selection (OSC) input sets

the internal oscillator frequency for the step-upconverter. Tie OSC pin to GND corresponds tothe frequency 625kHz and tie OSC pin to VCC orfloating corresponds to 1.25MHz.

Setting the LED CurrentThe LED string currents are identical and setthrough the current setting resistor on the ISETpin.

ILED = 1000 x 1.22V / (RSET+1k)

For RSET=60.4k, the LED current is set to19.9mA. The ISET pin can not be open.

Setting the Over Voltage Protection

The open string protection is achieved throughthe over voltage protection (OVP). In some cases,an LED string failure results in the feedbackvoltage always zero. The part then keepsboosting the output voltage higher and higher. Ifthe output voltage reaches the programmed OVPthreshold, the protection will be triggered.

To make sure the chip functions properly, theOVP setting resistor divider must be set with aproper value. The recommended OVP point is

about 1.3 times higher than the output voltage fornormal operation.

VOVP=1.23V x (R1+R2)/R2

Selecting Dimming Control Mode

The MP3388 provides 4 different dimmingmethods

1. PWM dimming mode with internal trianglewaveform generator

Apply a 100Hz to 50kHz square waveform to thePWMI pin. The internal 400k and external

capacitor on PWMO pin filters the dimming signalto a DC voltage(0.2V~1.2V).Then the DC voltageis modulated to an internal PWM dimming signalwhose frequency is set via the capacitor on FSETpin according to the equation:

fDPWM = 3.5uF / CFSET

The minimum recommended amplitude of thePWM signal is 2.1V (See Figure 3)

C1

FSET

PWMI

PWMO

MP3388

PWM Dimming100Hz~50kHz

C2

Figure 3PWM Dimmingwith Internal Triangle Waveform Generator

2. Direct PWM dimming with positive logic

An external PWM dimming signal is directlyemployed to achieve PWM dimming control.Connect a 100k resistor from FSET pin to GNDand apply the 100Hz to 2kHz PWM dimming

signal to PWMI pin. The minimum recommendedamplitude of the PWM signal is 1.5V (See Figure4).

VCC

C1

FSET

PWMI

PWMO

MP3388

PWM Dimming100Hz~2kHz

R1100kO

Figure 4Direct PWM Dimming

with Positive Logic

3. Direct PWM dimming with negative logic

It is similar to method 2. Apply a 100Hz to 2 kHzexternal square waveform to the PWMO pin fornegative logic PWM dimming. The minimumrecommended amplitude of the PWM signal is1.5V (See Figure 5),

VCC

C1

FSET

PWMI

PWMO

MP3388

PWM Dimming

100Hz~2kHz

R1100kO

Figure 5 Direct PWM Dimmingwith Negative Logic

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4. DC input PWM dimming

To apply DC input PWM dimming, apply ananalog signal (range from 0.2V to 1.2V) to thePWMO pin to modulate the LED current directly.If the PWMO is applied with a DC voltage1.2V, the outputwill be 0% (See Figure 6). The capacitor on FSETpin set the frequency of internal trianglewaveform.

C1

FSET

PWMI

PWMO

MP3388

Analog Dimming

0.2V~1.2V

Figure 6DC input PWM dimming

Selecting the Inductor

A 10H (for 1.25MHz switching frequency) /22uH(for 625kHz switching frequency) inductor with aDC current rating of at least 40% higher than themaximum input current is recommended for mostapplications. For highest efficiency, the inductorsDC resistance should be as small as possible.

Selecting the Input Capacitor

The input capacitor reduces the surge currentdrawn from the input supply and the switching

noise from the device. The input capacitorimpedance at the switching frequency should beless than the input source impedance to preventhigh frequency switching current from passingthrough the input. Ceramic capacitors with X5R orX7R dielectrics are highly recommended becauseof their low ESR and small temperaturecoefficients. For most applications, a 4.7Fcapacitor is sufficient.

Selecting the Output Capacitor

The output capacitor keeps the output voltageripple small and ensures feedback loop stability.The output capacitor impedance should be low atthe switching frequency. Ceramic capacitors withX7R dielectrics are recommended for their lowESR characteristics. For most applications, a2.2F ceramic capacitor will be sufficient.

Layout Considerations

Careful attention must be paid to the PCB boardlayout and components placement. Proper layoutof the high frequency switching path is critical toprevent noise and electromagnetic interferenceproblems. The loop of MP3388 SW to PGND pin(U1), output diode (D1), and output capacitor (C3)is flowing with high frequency pulse current. itmust be as short as possible (See Figure 7).

SW

PGND

GND

D1

C2

R1

Iset

Rset

U1

R2

Figure 7Layout Consideration

The IC exposed pad is internally connected toGND pin, and all logic signals are refer to theGND. The PGND should be externally connectedto GND and is recommended to keep away fromthe logic signals.

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PACKAGE INFORMATION

QFN24 (4mm x 4mm)

SIDE VIEW

TOP VIEW

1

2419

18

13

12 7

6

BOTTOM VIEW

3.904.10

2.502.80

3.904.10

2.502.80

0.50BSC

0.180.30

0.80

1.00

0.000.05

0.20 REF

PIN 1 IDMARKING

2.70

0.25

RECOMMENDED LAND PATTERN

3.90 NOTE:

1) ALL DIMENSIONS ARE IN MILLIMETERS.2) EXPOSED PADDLE SIZE DOES NOT INCLUDE MOLD FLASH.3) LEAD COPLANARITY SHALL BE 0.10 MILLIMETER MAX.

4) DRAWING CONFIRMS TO JEDEC MO-220, VARIATION VGGD.5) DRAWING IS NOT TO SCALE.

PIN 1 IDSEE DETAIL A

PIN 1 ID OPTION A0.30x45 TYP.

PIN 1 ID OPTION BR0.25 TYP.

DETAIL A

PIN 1 ID

INDEX AREA

0.70

0.350.45

0.50

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NOTICE: The information in this document is subject to change without notice. Users should warrant and guarantee that thirdparty Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will notassume any legal responsibility for any said applications.


PACKAGE INFORMATION (continued)

SOIC28

NOTE:

1) CONTROL DIMENSION IS IN INCHES. DIMENSION INBRACKET IS IN MILLIMETERS.

2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH,PROTRUSIONS OR GATE BURRS.

3) PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD FLASH

OR PROTRUSIONS.4) LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING)

SHALL BE 0.10 MILLIMETERS MAX.

5) DRAWING CONFORMS TO JEDEC MS-013, VARIATION AE.6) DRAWING IS NOT TO SCALE.

0.013(0.33)0.020(0.51)

0.697(17.70)

0.713(18.10)

SEATING PLANE

0.050(1.27)BSC

PIN 1 ID

0.291

(7.40)

0.299(7.60)

0.394

(10.00)

0.418(10.60)

1 14

1528

0.093(2.35)0.104(2.65)

0.004(0.10)

0.012(0.30)

TOP VIEW

FRONT VIEW SIDE VIEW

0.009(0.23)0.013(0.33)

RECOMMENDED LAND PATTERN

0.370

(9.40)

0.079(2.00)

0.024(0.61)

0.050

(1.27)

SEE DETAIL "A"

0.016(0.41)0.050(1.27)

0o-8o

DETAIL "A"

0.010(0.25)

0.030(0.75)x 45o

0.010(0.25) BSCGAUGE PLANE

MP3388_r1.0

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