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L9935 Datasheet

  • L9935

  • TWO-PHASE STEPPER MOTOR DRIVER

  • 19頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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上傳產品規(guī)格書

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L9935
TWO-PHASE STEPPER MOTOR DRIVER
2 X 1.1A FULL BRIDGE OUTPUTS
INTEGRATED CHOPPING CURRENT REGU-
LATION
MINIMIZED POWER DISSIPATION DURING
FLYBACK
OUTPUT STAGES WITH CONTROLLED
OUTPUT VOLTAGE SLOPES TO REDUCE
ELECTROMAGNETIC RADIATION
SHORT-CIRCUIT PROTECTION OF ALL
OUTPUTS
ERROR-FLAG FOR OVERLOAD, OPEN LOAD
AND OVERTEMPERATURE PREALARM
DELAYED CHANNEL SWITCH-ON TO RE-
DUCE PEAK CURRENTS
MAX. OPERATING SUPPLY VOLTAGE 24V
STANDBY CONSUMPTION TYPICALLY 40碌A
SERIAL INTERFACE (SPI)
PowerSO20
ORDERING NUMBER:
L9935
DESCRIPTION
The L9935 is a two-phase stepper motor driver
circuit suited to drive bipolar stepper motors. The
device can be controlled by a serial interface
(SPI). All protections required to design a well
protected system (short-circuit, overtemperature,
cross conduction etc.) are integrated.
BLOCK DIAGRAM
GND
1
20
GND
~
19
SR
A
OUT
A1
2
DRIVER
LOGIC
18
OUT
A2
N.C.
V
S
17
16
SCK
3
SDI
SDO
VCC
CSN
EN
4
OSCILLATOR
5
6
7
8
COMMON
LOGIC
DIAGNOSTIC
15
OSC
14
BIASING
C
DRV
OUT
B1
9
DRIVER
LOGIC
13
OUT
B2
12
SR
B
GND
GND
10
~
11
D99AT415
November 1999
1/19

L9935 產品屬性

  • 31

  • 集成電路 (IC)

  • PMIC - 電機和風扇控制器,驅動器

  • -

  • 步進電機驅動器,2 相

  • -

  • 1

  • ±1.2A

  • -

  • 8 V ~ 24 V

  • -40°C ~ 150°C

  • 表面貼裝

  • 20-SOIC(0.433",11.00mm 寬)裸露焊盤

  • PowerSO-20

  • 管件

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