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参数资料
| 型号： | L9230 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 运动控制电子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, PDSO20 |
| 封装： | POWER, MO-166, SO-20 |
| 文件页数： | 1/25页 |
| 文件大小： | 218K |
| 代理商： | L9230 |
1/25
L9230
March 2003
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
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OPERATING SUPPLY VOLTAGE 5V TO 28V
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TYPICAL RDSon = 150 m FOR EACH
OUTPUT TRANSISTOR (AT 25°C)
s
CONTINOUS DC LOAD CURRENT 5A
(Tcase < 100 °C)
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OUTPUT CURRENT LIMITATION AT TYP. 6A
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SHORT CIRCUIT SHUT DOWN FOR OUTPUT
CURRENTS OVER 8A
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LOGIC- INPUTS TTL/CMOS-COMPATIBLE
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OPERATING-FREQUENCY UP TO 30 kHz
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OVER TEMPERATURE PROTECTION
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SHORT CIRCUIT PROTECTION
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UNDERVOLTAGE DISABLE FUNCTION
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DIAGNOSTIC BY SPI OR STATUS-FLAG
(CONFIGURABLE)
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ENABLE AND DISABLE INPUT
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SO20 POWER PACKAGE
DESCRIPTION
The L9230 is an SPI controlled H-Bridge, designed
for the control of DC and stepper motors in safety crit-
ical applications and under extreme environmental
conditions.
The H-Bridge is protected against over temperature
and short circuits and has an under voltage lockout
for all the supply voltages ”VS” (Main DC power sup-
ply). All malfunctions cause the output stages to go
tristate.
The H-Bridge contains integrated free-wheel diodes.
In case of free-wheeling condition, the lowside tran-
sistor is switched on in parallel of its diode to reduce
the current injected into the substrate.
Switching in parallel is only allowed, if the voltage-
level of the according output-stage is below the
ground-level.In this case it must be ensured, that the
upper transistor is switched off.
PowerSO20
BARE-DIE
ORDERING NUMBERS:
L9230
L9230-DIE1
PRELIMINARY DATA
SPI CONTROLLED H-BRIDGE
BLOCK DIAGRAM
IN1
VS
GND
OUT1
OUT2
IN2
DI
EN
DMS
SF/SCK
SS
SI
SO
LOGIC
UNDERVOLTAGE
VS
INTERNAL 5V
SUPPLY
OVERCURRENT
HIGH-SIDE
OVERCURRENT
LOW-SIDE
GATE CONTROL
1
GATE CONTROL
2
OVER
TEMPERATURE
MAXIMUM
CURRENT
LIMITATION
D01AT470A
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