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L9925 Datasheet

  • L9925

  • DMOS DUAL FULL BRIDGE DRIVER

  • 9頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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廬
L9925
DMOS DUAL FULL BRIDGE DRIVER
2 INDEPENDENTLY CONTROLLED
H-BRIDGES
R
DS,ON
<0.9鈩?@ T
amb
= 25擄C, V
S
= 14V
0.8A DC CURRENT WITHOUT HEAT SINK
LOW QUIESCENT MODE I
q
<200碌A(chǔ)
THEMAL PROTECTION
CROSS CONDUCTION PROTECTION
SUPPLY VOLTAGE UP TO 40V
CMOS COMPATIBLE INPUTS
OUTPUT SHORT-CIRCUIT PROTECTION
DESCRIPTION
The L9925 is a dual full bridge driver for stepper
motor applications. Realized in BCD (Bipolar,
CMOS & DOS) techology, logic circuits, precise
linear blocks and power transistors are combined
to optimize circuit performance and minimize off
chip components. Schmitt triggers are used for all
input stages and are fully compatible with 5V
CMOS logic levels. When both enable signals are
low, the IC is commanded to a low quiescent cur-
rent state and will draw less than 200碌A(chǔ) from the
battery.
BLOCK DIAGRAM
SO28
ORDERING NUMBER: L9925
The charge pump is integrated on chip; no exter-
nal components are required. Full performance is
maintaned for 9V <V
S
<16V. Extended ranges of
6V <<V
S
<9V and 16V <V
S
<40V yields full func-
tionally but with relaxed performance. Over tem-
perature protection and ESD protection to all pins
ensures relability and reduces system integration
failures.
OUT1
VS1
OUT2
CHARGE
PUMP
CHARGE
PUMP
IN1
7V
TEMP
7V
IN2
EN1
7V
T1
T2
EN1
EN1
1st FULL BRIDGE
T1 T2
EN1
PGND1
GND
5V
REGULATOR
40V
VS2
EN2
IN3
IN4
T1 T2
EN2
OUT3
2nd FULL BRIDGE
OUT4
D99AT423
March 1999
...................................................................................................
....................................................................................................
........
1/9

L9925 產(chǎn)品屬性

  • Small Motor Drivers

  • 700

  • 集成電路 (IC)

  • PMIC - 電機和風(fēng)扇控制器，驅(qū)動器

  • -

  • 步進電機驅(qū)動器

  • -

  • 2

  • ±1.2A

  • -

  • 9 V ~ 16 V

  • -40°C ~ 150°C

  • 表面貼裝

  • 28-SOIC（0.295"，7.50mm 寬）

  • 28-SO

  • 管件

  • 497-3938-5

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