L6227 datasheet(1/22 Pages) STMICROELECTRONICS

部件名	L6227

功能描述	DMOS DUAL FULL BRIDGE DRIVER WITH PWM CURRENT CONTROLLER

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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L6227

September 2003

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OPERATING SUPPLY VOLTAGE FROM 8 TO 52V

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2.8A OUTPUT PEAK CURRENT (1.4A DC)

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RDS(ON) 0.73Ω TYP. VALUE @ Tj = 25 °C

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OPERATING FREQUENCY UP TO 100KHz

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NON DISSIPATIVE OVERCURRENT

PROTECTION

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DUAL INDEPENDENT CONSTANT tOFF PWM

CURRENT CONTROLLERS

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SLOW DECAY SYNCHRONOUS

RECTIFICATION

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CROSS CONDUCTION PROTECTION

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THERMAL SHUTDOWN

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UNDER VOLTAGE LOCKOUT

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INTEGRATED FAST FREE WHEELING DIODES

TYPICAL APPLICATIONS

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BIPOLAR STEPPER MOTOR

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DUAL DC MOTOR

DESCRIPTION

The L6227 is a DMOS Dual Full Bridge designed for

motor control applications, realized in MultiPower-

BCD technology, which combines isolated DMOS

Power Transistors with CMOS and bipolar circuits on

the same chip. The device also includes two inde-

pendent constant off time PWM Current Controllers

that performs the chopping regulation. Available in

PowerDIP24 (20+2+2), PowerSO36 and SO24

(20+2+2) packages, the L6227 features a non-dissi-

pative overcurrent protection on the high side Power

MOSFETs and thermal shutdown.

BLOCK DIAGRAM

D99IN1085A

GATE

LOGIC

OCDA

OCDB

OVER

CURRENT

DETECTION

OVER

CURRENT

DETECTION

GATE

LOGIC

VCP

VBOOT

ENA

IN1A

IN2A

ENB

IN1B

IN2B

VREFA

VBOOT

5V

10V

VSA

V

SB

OUT1A

OUT2A

OUT1B

OUT2B

SENSEA

CHARGE

PUMP

VOLTAGE

REGULATOR

ONE SHOT

MONOSTABLE

MASKING

TIME

THERMAL

PROTECTION

VBOOT

10V

BRIDGE A

SENSE

COMPARATOR

BRIDGE B

RCA

+

-

SENSEB

VREFB

RCB

PWM

ORDERING NUMBERS:

L6227N (PowerDIP24)

L6227PD (PowerSO36)

L6227D (SO24)

PowerDIP24

(20+2+2)

PowerSO36

SO24

(20+2+2)

DMOS DUAL FULL BRIDGE DRIVER

WITH PWM CURRENT CONTROLLER

类似零件编号 - L6227

制造商	部件名	数据表	功能描述
STMicroelectronics	L6227Q	437Kb / 27P	DMOS dual full bridge driver with PWM current controller
	L6227Q	389Kb / 27P	DMOS dual full bridge driver with PWM current controller
	L6227Q	389Kb / 27P	DMOS dual full bridge driver with PWM current controller

More results

类似说明 - L6227

制造商	部件名	数据表	功能描述
STMicroelectronics	L6227Q	389Kb / 27P	DMOS dual full bridge driver with PWM current controller
	L6207PD013TR	633Kb / 33P	DMOS dual full bridge driver with PWM current controller
	L6227Q	437Kb / 27P	DMOS dual full bridge driver with PWM current controller
	L6207	387Kb / 23P	DMOS DUAL FULL BRIDGE DRIVER WITH PWM CURRENT CONTROLLER
Allegro MicroSystems	A4954	248Kb / 9P	Dual Full-Bridge DMOS PWM Motor Driver
	3965	186Kb / 7P	DMOS DUAL FULL-BRIDGE PWM MOTOR DRIVER 12/4/2002
	A4954	247Kb / 9P	Dual Full-Bridge DMOS PWM Motor Driver
	A5995	715Kb / 12P	DMOS Dual Full-Bridge PWM Motor Driver
	3974	178Kb / 12P	DMOS DUAL FULL-BRIDGE PWM MOTOR DRIVER
	3974	617Kb / 12P	DMOS DUAL FULL-BRIDGE PWM MOTOR DRIVER