Datasheet > EVAL6208N

EVAL6208N

更新时间： 2024-11-27 12:29:03

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		电机驱动
页数	文件大小	规格书
27页	469K
描述
DMOS DRIVER FOR BIPOLAR STEPPER MOTOR

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中文翻译

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数据手册

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EVAL6208N 数据手册

L6208

DMOS DRIVER FOR BIPOLAR STEPPER MOTOR

■

OPERATING SUPPLY VOLTAGE FROM 8 TO 52V

■ 5.6A OUTPUT PEAK CURRENT (2.8A RMS)

0.3Ω TYP. VALUE @ T = 25°C

■ R

DS(ON)

■ OPERATING FREQUENCY UP TO 100KHz

■ NON DISSIPATIVE OVERCURRENT

PROTECTION

SO24

(20+2+2)

PowerSO36

PowerDIP24

(20+2+2)

■ DUAL INDEPENDENT CONSTANT t

PWM

OFF

CURRENT CONTROLLERS

ORDERING NUMBERS:

L6208N (PowerDIP24)

L6208PD (PowerSO36)

L6208D (SO24)

■ FAST/SLOW DECAY MODE SELECTION

■ FAST DECAY QUASI-SYNCHRONOUS

RECTIFICATION

■ DECODING LOGIC FOR STEPPER MOTOR

FULL AND HALF STEP DRIVE

■ CROSS CONDUCTION PROTECTION

■ THERMAL SHUTDOWN

■ UNDER VOLTAGE LOCKOUT

bines isolated DMOS Power Transistors with CMOS

and bipolar circuits on the same chip. The device in-

cludes all the circuitry needed to drive a two-phase

bipolar stepper motor including: a dual DMOS Full

Bridge, the constant off time PWM Current Controller

that performs the chopping regulation and the Phase

Sequence Generator, that generates the stepping

sequence. Available in PowerDIP24 (20+2+2),

PowerSO36 and SO24 (20+2+2) packages, the

L6208 features a non-dissipative overcurrent protec-

tion on the high side Power MOSFETs and thermal

shutdown.

■

INTEGRATED FAST FREE WHEELING DIODES

TYPICAL APPLICATIONS

■ BIPOLAR STEPPER MOTOR

DESCRIPTION

The L6208 is a DMOS Fully Integrated Stepper Motor

Driver with non-dissipative Overcurrent Protection,

realized in MultiPower-BCD technology, which com-

BLOCK DIAGRAM

VBOOT

VCP

V_BOOT

VS_A

V_BOOT

CHARGE

PUMP

OCD_A

OCD_B

OVER

CURRENT

DETECTION

OUT1_A

OUT2_A

10V

THERMAL

PROTECTION

GATE

LOGIC

CONTROL

SENSE_A

HALF/FULL

CLOCK

PWM

STEPPING

SEQUENCE

GENERATION

ONE SHOT

MONOSTABLE

MASKING

TIME

VREF_A

RC_A

RESET

SENSE

COMPARATOR

CW/CCW

BRIDGE A

VS_B

OVER

OUT1_B

OUT2_B

SENSE_B

VREF_B

RC_B

CURRENT

DETECTION

VOLTAGE

REGULATOR

GATE

LOGIC

10V

BRIDGE B

D01IN1225

September 2003

1/27

12 3 4 5 6 7...27

中文翻译

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