EVALSTSR30-60W STMicroelectronics, EVALSTSR30-60W Datasheet

BOARD EVAL USING L6668 & STSR30

EVALSTSR30-60W

Manufacturer Part Number
EVALSTSR30-60W
Description
BOARD EVAL USING L6668 & STSR30
Manufacturer
STMicroelectronics
Type
AC/DC Switching Convertersr
Datasheets

Specifications of EVALSTSR30-60W

Mfg Application Notes
EVALSTSR30-60W AppNote
Main Purpose
AC/DC, Primary and Secondary Side
Outputs And Type
1, Isolated
Power - Output
60W
Voltage - Output
12V
Current - Output
5A
Voltage - Input
88 ~ 264VAC
Regulator Topology
Flyback
Frequency - Switching
68kHz
Board Type
Fully Populated
Utilized Ic / Part
L6668, STSR30
Input Voltage
88 V to 264 V
Output Voltage
12 V
Dimensions
120 mm x 75 mm
Product
Power Management Modules
Silicon Manufacturer
ST Micro
Silicon Core Number
L6668 And STSR30
Kit Application Type
Power Management - Voltage Regulator
Application Sub Type
SMPS
Kit Contents
Board
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
L6668, STSR30
Other names
497-6389
EVALSTSR30-60W

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Part Number:
EVALSTSR30-60W
Manufacturer:
ST
0
DESCRIPTION
STSR30 Smart Driver IC provides a high current
outputs to properly drive secondary Power
Mosfets used as Synchronous Rectifier in low
output
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withdrawn on the secondary side of the isolation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 primary
BLOCK DIAGRAM
January 2004
SUPPLY VOLTAGE RANGE: 4V TO 5.5V
TYPICAL PEAK OUTPUT CURRENT:
(SOURCE-SINK: 1.5A)
OPERATING FREQUENCY: 20 TO 500 KHz
INHIBIT BLANKING TIME: 700 ns
AUTOMATIC TURN OFF FOR DUTY-CYCLE
LESS THAN 14%
POSSIBILITY TO OPERATE IN
DISCONTINUOUS MODE
voltage,
high
efficiency
Flyback
SMART DRIVER FOR FLYBACK
switch 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,
Synchronous FET, allows to shut-off the drive
output during discontinuous mode condition. A
Disable pin allows turning off the device during
no-load
consumption.
SYNCHRONOUS RECTIFIER
condition
detecting
reducing
the
SO-8
voltage
STSR30
overall
across
current
1/10
the

Related parts for EVALSTSR30-60W

EVALSTSR30-60W Summary of contents

Page 1

SUPPLY VOLTAGE RANGE 5.5V TYPICAL PEAK OUTPUT CURRENT: (SOURCE-SINK: 1.5A) OPERATING FREQUENCY 500 KHz INHIBIT BLANKING TIME: 700 ns AUTOMATIC TURN OFF FOR DUTY-CYCLE LESS THAN 14% POSSIBILITY TO OPERATE IN DISCONTINUOUS MODE DESCRIPTION STSR30 Smart ...

Page 2

STSR30 ABSOLUTE MAXIMUM RATINGS (Note 1) Symbol V DC Input Voltage to SGLGND CC OUT Max Gate Drive Output Voltage GATE Max DISABLE Voltage DISABLE Max INHIBIT Voltage (*) INHIBIT CK Clock Input Voltage Range (*) ESD Human Body Model ...

Page 3

PIN DESCRIPTION Pin N° Symbol 1 INHIBIT 2 OUT GATE 3 SGLGND 4 PWRGND DISABLE 7 SETANT 8 CK Name and Function This input enables OUT to work when its voltage is lower than the negative ...

Page 4

STSR30 ELECTRICAL CHARACTERISTICS ( -40 to 125° 100nF ceramic, unless otherwise specified Symbol Parameter SUPPLY INPUT AND UNDER VOLTAGE LOCK OUT V Start Threshold CC Turn OFF Threshold After Start I ...

Page 5

Figure 1 : TIMING DIAGRAM Figure 2 : STSR30 IN FLYBACK CONVERTER SECONDARY SIDE Vi PWM +5V NOTES 1) Ceramic Capacitors C1 and C2 must be placed very close to the IC and R2 set the anticipation time ...

Page 6

STSR30 Figure 3 : STSR30 SYNCHRONIZATION TECHNIQUE The synchronization is based on the revelation of the low level of the drain voltage of the synchronous rectifier. To avoid false triggering of the device during discontinuous mode important that ...

Page 7

Figure 5 : INHIBIT Threshold Voltage vs Temperature Figure Frequency CC Figure 7 : Rise and Fall Time vs Load Capacitor Figure Temperature DS(ON) Figure 9 : Minimum T ON(GATE) Figure ...

Page 8

STSR30 DIM. MIN. A 1.35 A1 0.10 A2 1.10 B 0.33 C 0.19 D 4. 5.80 h 0.25 L 0.40 k ddd 8/10 SO-8 MECHANICAL DATA mm. TYP MAX. 1.75 0.25 1.65 0.51 0.25 5.00 4.00 ...

Page 9

Tape & Reel SO-8 MECHANICAL DATA mm. DIM. MIN 12 8.1 Bo 5.5 Ko 2.1 Po 3.9 P 7.9 TYP MAX. MIN. 330 13.2 0.504 0.795 2.362 22.4 8.5 0.319 5.9 0.216 ...

Page 10

... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied ...

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