ST890BDR-ST890CD-ST890CDR Fast Delivery |IC PHOENIX CO.,LIMITED

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Partno	Mfg	Dc	Qty	Available	Descript
ST890BDR	ST ?	N/a	2499	avai	1.2 CURRENT LIMITED HIGH SIDE WITH THERMAL SHUTDOWN
ST890CD	ST	N/a	76	avai	1.2 CURRENT LIMITED HIGH SIDE WITH THERMAL SHUTDOWN
ST890CDR	ST,ST	N/a	20000	avai	1.2 CURRENT LIMITED HIGH SIDE WITH THERMAL SHUTDOWN

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ST90R158Q6 ,8/16-BIT MICROCONTROLLER (MCU) WITH 16 TO 64K ROM, OTP OR EPROM, 512 TO 2K RAMTable of Contents4.2.1 Divide by Zero trap . 484.2.2 Segment Paging During Interrupt Routines ..
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STRS5706 , STRS5706
STRS5707 , OFF-LINE SWITCHING REGULATORS - WITH BIPOLAR SWITCHING TRANSISTOR

ST890BDR-ST890CD-ST890CDR
1.2 CURRENT LIMITED HIGH SIDE WITH THERMAL SHUTDOWN
1/7September 2002 2.7VTO 5.5V INPUT RANGE PROGRAMMABLE CURRENT LIMITUPTO
1.2A LOW QUIESCENT CURRENT THERMAL SHUTDOWN FAULT INDICATOR OUTPUT 90mΩ (TYP.)ON RESISTANCE SO-8 PACKAGE
DESCRIPTION
The ST890isalow voltage, P-Channel MOSFET
power switch intendedfor high side load switching
applications.
This switch operates with inputs from 2.7Vti 5.5V,
makingit idealfor both3V and5V systems.
Internal current limiting circuitry protectsthe input
supply against overload. Thermal overload
protection limits power dissipation and junction
temperatures.
The ST890’s maxmimum current limitsis 1.2A.
The current limit throughthe switchis programed
witha resistor from SETto groung. The ST890is
availablein SO-8 package. Main applications are:
PCMCIA slots, Access bus slots, Portable
equipment.
ORDERING CODES
ST890
1.2A CURRENT LIMITED HIGH SIDE WITH
THERMAL SHUTDOWN
SCHEMATIC DIAGRAM
ST890
2/7
ABSOLUTE MAXIMUM RATINGS
AbsoluteMaximum Ratingsare those values beyond which damagetothe devicemay occur. Functional operation under these conditionis
not implied.
THERMAL DATA
(*)This value dependsfrom thermal designofPCBon whichthe deviceis mounted.
TRUTH TABLE FOR ON/OFF SWICH CONNECTION DIAGRAM (top view)
PIN DESCRIPTION
ST890
3/7
ELECTRICAL CHARACTERISTICS(VIN =3V,TA=TMINtoTMAX, unless otherwise specified. Typical
valuesareatTA =25°C)
TIMINGL CHARACTERISTICS (VIN=3V,TA =TMINto TMAX, unless otherwise specified. Typical values
areatTA =25°C)
ST890
4/7
TYPICAL APPLICATION CIRCUIT
TYPICAL PERFORMANCE CHARACTERISTICS (unless otherwise specifiedTj =25°C
Figure1:ON Resistancevs Supply Voltage
Figure2:ON Resistancevs Supply Voltage
Figure3:ON Resistancevs Temperature
Figure4: Output Voltagevs Input Voltage
ST890
5/7
Figure5: Switching Waveforms, Figure6: Switching Waveforms,

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