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STSR3, STSR30, STSR30D-TR

Table of contents:
Info of STSR3
Info of STSR30
Info of STSR30D-TR

STSR3, STSR30, STSR30D-TR Selling Leads, Datasheet

MFG:STMicroelectronics (VA) Category:Integrated Circuits (ICs) Package Cooled:SOP D/C:05+

STSR3, STSR30, STSR30D-TR Datasheet download

Five Points

Part Number: STSR30D-TR

Category: Integrated Circuits (ICs)

MFG: STMicroelectronics (VA)

Package Cooled: SOP

D/C: 05+

Description: IC SMART DRIVER SYNC 8-SOIC

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STSR3 General Description

STSR3 Smart Driver IC provides a high current outputs to properly drive secondary Power Mosfets used as Synchronous Rectifier in low output voltage, high efficiency Flyback Converters. From a synchronizing clock input, withdrawn on the secondary side of the isolation transformer, the IC generates a driving signal with set dead times with respect to the primary side PWM signal.

The IC operation prevents secondary side shoot-through conditions at turn-on of the primaryswitch providing anticipation in turn-off the output. This smart function is implemented by a fast cycle-after-cycle logic control mechanism, based on a high frequency oscillator synchronized by the clock signal. This anticipation is externally set
through external component. A special Inhibit function allows to shut-off the drive output. This feature makes discontinuous conduction mode possible and avoids reverse conduction of the synchronous rectifier.

STSR3 Maximum Ratings

Symbol	Parameter		Value	Unit
V_CC	DC Input Voltage		-0.3 to 6	V
V_OUTGATE	Max Gate Drive Output Voltage		-0.3 to V_CC	V
V_INHIBIT	Max INHIBIT Voltage (*)		-0.6 to V_CC	V
V_CK	Clock Input Voltage Range (*)		-0.3 to V_CC	V
I_LX	Switching Peak Current		2	A
P_TOT	Continuous Power Dissipation at TA=105without heatsink		270	mW
ESD	Human Body Model	Pins 1,2, 4, 5, 6, 7, 8	±1	KV
ESD	Human Body Model	Pin 3	±0.9	KV
T_stg	Storage Temperature Range		-55 to +150
T_op	Operating Junction Temperature Range		-40 to +125

(*) A higher positive voltage level can be applied to the pin with a resistor which limits the current flowing into the pin to 10mA maximum

STSR3 Connection Diagram

STSR30 General Description

STSR30 Smart Driver IC provides a high current outputs to properly drive secondary Power Mosfets used as Synchronous Rectifier in low output voltage, high efficiency Flyback Converters. From a synchronizing clock input, withdrawn on the secondary side of the isolation transformer, the IC generates a driving signal with set dead times with respect to the primary side PWM signal.

The IC operation prevents secondary side shoot-through conditions at turn-on of the primaryswitch providing anticipation in turn-off the output. This smart function is implemented by a fast cycle-after-cycle logic control mechanism, based on a high frequency oscillator synchronized by the clock signal. This anticipation is externally set
through external component. A special Inhibit function, detecting the voltage across the Synchronous FET, allows to shut-off the drive output during discontinuous mode condition. A Disable pin allows turning off the device during no-load condition reducing overall current consumption.

STSR30 Maximum Ratings

Symbol	Parameter	Value	Unit
V_CC	DC Input Voltage	-0.3 to 6	V
OUTGATE	Max Gate Drive Output Voltage	-0.3 to V_CC	V
DISABLE	Max DISABLE Voltage	-0.6 to V_CC	V
INHIBIT	Max INHIBIT Voltage (*)	-0.6 to VCC	V
_CK	Clock Input Voltage Range (*)	-0.3 to V_CC	V
P_TOT	Continuous Power Dissipation at TA=105°C SO-8 (No heatsink)	270	mW
ESD	Human Body Model	±2	KV
T_stg	Storage Temperature Range	-40 to +150
T_op	Operating Junction Temperature Range	-40 to +125

(*) A higher positive voltage level can be applied to the pin with a resistor which limits the current flowing into the pin to 10mA maximum

STSR30 Connection Diagram

STSR30D-TR Parameters

Technical/Catalog Information	STSR30D-TR
Vendor	STMicroelectronics (VA)
Category	Integrated Circuits (ICs)
Configuration	High-Side
Voltage - Supply	4 V ~ 5.5 V
Current - Peak	1.5A
Delay Time	-
Package / Case	8-SOIC (3.9mm Width)
Packaging	Digi-Reel?
Number of Outputs	1
Input Type	Self Oscillating
Number of Configurations	1
Operating Temperature	-40°C ~ 125°C
High Side Voltage - Max (Bootstrap)	-
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	STSR30D TR STSR30DTR 497 2155 6 ND 49721556ND 497-2155-6

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