Smart Motor Driver FamilySmart Motor Driver Family

Motor Control System PartitioningMotor Control System Partitioning

sensorssensors

DriverPower Stage

Input Power

BehaviouralCommands

Device incorporating all necessary logic and power

circuits to drive a motor

Power circuits feeding the Motor, including protection

Logic and analog circuit generates switching pattern to drive the power switches

Voltage and current level shifters

solid state switches

Controller GateDrivers

PowerSwitchArray

powerSPIN: A Motor Driver Platform ready for Mass Customization

powerSPIN: A Motor Driver PlatformPlatform ready for Mass Customization

Power MOS

AnalogControl

CoreDC MOTORSDC MOTORS

STEPPERSTEPPER

BRUSHLESSBRUSHLESS

Power MOS

L620X for Lower Current L620X for Lower Current (5.6Apeak, 2.8Arms)(5.6Apeak, 2.8Arms)

L622X for Lower Current L622X for Lower Current (2.8Apeak, 1.4Arms)(2.8Apeak, 1.4Arms)

L6225L6225

powerSPIN family portraitpowerSPIN family portrait

L6226L6226

L6227L6227

L6228L6228

L6229L6229

L6205L6205

L6206L6206

L6207L6207

L6208L6208

L6235L62353ph Bridge

Dual H-Bridge

Basic Power StageFixed Over CurrentSmallest PackageFor Dual DC or Stepper

Enhanced Power StageSettable Over CurrentDiagnostic OutputFor Dual DC or Stepper

Power Stage with PWMTwin Current ControlFor Dual DC or Stepper

Stepper Motor DriverSingle ChipFor bipolar Stepper

Brushless Motor DriverHall sensors decoding logicPWM Current ControlTacho output

powerSPIN family common featurespowerSPIN family common features• BCDIIIs, 1um, 60 V Mixed signal power technology• Operating Supply Voltage from 8 to 52V• PowerMOS ouput stage:

• typical Rds(on) = 0.3ohm or 0.73ohm @ Tj = 25 °C• Intrinsic Fast Free Wheeling Diodes

• Two product classes covering different current ratings:• L620X and L6235, 5.6Apeak and 2.8Arms• L622X, 2.8Apeak and 1.4Arms• Paralleled Operation doubles peak and rms ratings!

• Extensive Protection Schemes:• Non-Dissipative High Side Current Sensing for Over Current

Protection• Cross Conduction Protection• Thermal Protection• Under Voltage Lock Out

• PowerSO, SO and DIP package options:• fit different power ratings

…a basic yet comprehensive twin Power Bridge Solution

L6205 and L6225

…a basic yet comprehensive twin Power Bridge Solution

L6205 and L6225- Fixed (5.6A/2.8A*) Over Current

trip point- Smallest pin count/package size

- PowerSO20/SO20/DIP20- aimed at dual DC/Bipolar Stepper

…with an external OCD setting, here’sL6206 and L6226

…with an external OCD setting, here’sL6206 and L6226

Drives:- Dual DC, or - Bipolar Stepper, or- High Current DC

Diagnostic Output

Externally Adjustable Over Current trip point

Zero losses High Side Current sensingZero losses High Side Current sensing

DIAG

ENABLE

Vdd

To uC

R

C

Ron

1.27V

Vboot

10V

Vref

Vs

OUT

Sense

Current Sensing Though few "Cells" of the High Side PowerMOS

Diag Feedback through an Oped Drain Output

(External in the L6207) Connection to the ENABLE pin

…flexible off time management…flexible off time management

Isc

Load Current (through High Side Drivers)

1.27V

DIAGRCRonC

ON ONOFF

DIAG

1.27V

ENABLE

Vdd

To uC

L6207

R

C

Ron

Define your own OFF time, for safe operation.

…then add a twin PWM control to getL6207 and L6227

…then add a twin PWM control to getL6207 and L6227

- Dual constant Toff PMW control channel

- aimed at dual DC/Bipolar Stepper

Constant Toff PWM current control schemeConstant Toff PWM current control scheme

DRIVERS+

DEAD TIME

SQ

R

DRIVERS+

DEAD TIME

2H 1H

2L 1L

OUT2A(or B)

SENSEA(or B)

RSENSE

D02IN1352

RCA(or B)

RC

VREFA(or B)

IOUT

OUT1A(or B)

+

+

-

-

1µs

5mA

BLANKER

SENSECOMPARATOR

COMPARATOROUTPUT

MONOSTABLERESET

2.5V

5V

FROM THELOW-SIDE

GATE DRIVERS

LOADA(or B)

BLANKING TIMEMONOSTABLE

VSA (or B)

TO GATE LOGIC

(0) (1)

OFFB C D DA

TON TOFF

B C

ON

2.5V

0Slow Decay

1µs tBLANK

TRCRISE TRCRISE

0.69RC

SYNCHRONOUS RECTIFICATION

1µs tBLANK

5V

VRC

VSENSE

VREF

IOUT

VREFRSENSE

D02IN1351

Ever needed a single package answer to Stepper Motor?

L6208 and L6228

Ever needed a single package answer to Stepper Motor?

L6208 and L6228- Integrated translator- Integrated PWM current

control- Simple Interface to host- aimed at Bipolar Stepper

A real system implementation with L6208/L6228

A real system implementation with L6208/L6228

- External part count reduced to a minimum

- Clean and elegant truly cost effective solution

Integrated hall sensor decoding logic

60 or 120 degreesIntegrated PWM current controlDiagnostic OutputSimple Interface to hostTacho Output fro Speed control

Looking to a Fully Integrated 3-Phase Brushless Motor Driver solution?

L6235 and L6229!

Current Ratings vs Package and configuration

Current Ratings vs Package and configuration

Assumptions• Tj=125C• Vs=24V• Sinchronous Rectification• SO Pdmax=1W• DIP Pdmax=2W• PowerSO Pdmax=3.5W

2.4A

1.2A1.6A

0.8A

0.6A

1.2A0.9A

1.8A

0.4A0.9A

0.6A

1.3APowerSO

Dual In Line

SOL622x Dual

L622x Parallel

L620x Dual

L620x Parallel

practiSPINTM:practiSPINTM:

A comprehensive set of tools:- a set of Demo Boards (EVAL620X, x = 5, 6, 7, 8 and EVAL6235)

-a Windows based User Interface- an ST7 Based Demo-to-PC interface board

- establish plug –and –play connection to the motor for a rapid product evaluation - first cut thermal analysis

Enabling user to: