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L6227PD Datasheet

  • L6227PD

  • DUAL DMOS FULL BRIDGE MOTOR DRIVER

  • 11頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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L6227
DUAL DMOS FULL BRIDGE MOTOR DRIVER
PRELIMINARY DATA
s
OPERATING SUPPLY VOLTAGE FROM 8 TO
52V
2.8A PEAK CURRENT (1.4A DC)
R
DS (ON)
0.73鈩?TYP. VALUE @ T
j
= 25
擄C
BUILT-IN CONSTANT OFF TIME PWM
CURRENT CONTROL
HIGH SIDE OVER CURRENT PROTECTION
2.8A TYP
CROSS CONDUCTION PROTECTION
THERMAL SHUTDOWN
OPERATING FREQUENCY UP TO 100KHz
INTRINSIC FAST FREE WHEELING DIODES
UNDER VOLTAGE LOCKOUT
INHIBIT FUNCTION FOR LOW POWER
CONSUMPTION
manufactured with Multipower BCD technology
which combines isolated DMOS power transistors
with CMOS and bipolar circuits on the same chip.
The Logic Inputs are CMOS/TTL and
碌
P compatible.
Additional circuitry to realize a constant off time PWM
control has been implemented for each bridge.
Each full bridge is controlled by a separate Enable
and has a sense pin for the current sense resistor in-
sertion. Other features are the protection of the high
side switches against unsafe over current conditions,
the thermal shutdown and the inhibit function that al-
lows to disable all bridges and to reduce the quies-
cent current to very low values (typ. 1.1mA).
The L6227 is assembled in PowerDIP24(20+2+2),
PowerSO36 and SO24(20+2+2) packages.
PowerDIP24
PowerSO36
SO24
(20+2+2)
(20+2+2)
ORDERING NUMBERS:
L6227N
L6227PD
L6227D
s
s
s
s
s
s
s
s
s
s
TYPICAL APPLICATIONS
s
s
STEPPER MOTOR
DUAL OR QUAD DC MOTOR
DESCRIPTION
The L6227 is a dual full bridge driver for motor control
BLOCK DIAGRAM
OUT1
A
GND
GND
GND
GND
EN
A
EN
B
IN1
A
IN2
A
V
ref B
IN1
B
IN2
B
V
ref A
V
S A
SENSE
A
OUT2
A
V
S A
V
S A
V
S A
PWM
A
RC
A
/INH
Logic
&
Drivers
V
BOOT
Charge
Pump
V
CP
PWM
B
RC
B
V
S B
V
S B
V
S B
OUT1
B
SENSE
B
OUT2
B
V
S B
March 2001
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change with out notice.
1/11

L6227PD 產(chǎn)品屬性

  • L6227 View All Specifications

  • Small Motor Drivers

  • 31

  • 集成電路 (IC)

  • PMIC - MOSFET，電橋驅(qū)動器 - 內(nèi)部開關(guān)

  • -

  • 半橋

  • 非反相

  • 4

  • 730 毫歐

  • 1.4A

  • 2.8A

  • 8 V ~ 52 V

  • -25°C ~ 125°C

  • 表面貼裝

  • 36-BSSOP（0.433"，11.00mm 寬）裸露焊盤

  • PowerSO-36

  • 管件

  • 497-6817-ND - EVAL BOARD FOR L6227Q

  • 497-5348-5L6227PD-ND

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