str-s6401 Allegro MicroSystems, Inc., str-s6401 Datasheet

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str-s6401

Manufacturer Part Number
str-s6401
Description
Off-line Switching Regulators ? With Power Mosfet Outpu
Manufacturer
Allegro MicroSystems, Inc.
Datasheet
OVER-CURRENT
Supply Voltage, V
Drain-Source Voltage, V
Drain Current, I
Avalanche Energy, E
Gate-Source Voltage, V
Gate-Drive Current Range,
Over-Current Protection Voltage Range,
Insulation RMS Voltage,
Package Power Dissipation,
FET Channel Temperature, T
Internal Frame Temperature, T
Operating Temperature Range,
Storage Temperature Range,
ABSOLUTE MAXIMUM RATINGS
PROTECTION
continuous ................................... 10 A
single pulse, t
single pulse ............................... 500 mJ
I
V
V
P
T
T
G
GROUND
GROUND
SOURCE
A
stg
OCP
WM(RMS)
D
POWER
SIGNAL
START
................................. -0.7 A to +1.5 A
DRAIN
GATE
SOFT
FDBK
........................................ See Graph
............................... -20 C to +125 C
V IN
............................. -30 C to +125 C
............................. -0.3 V to +4.0 V
1
2
3
4
5
6
7
8
9
..................................... 2000 V
D
w
IN
1 ms .................. 40 A
............................ 35 V
UVLO
A
GS
DS
LATCH
................
............... 500 V
REF.
J
...... +150 C
F
PWM
... +125 C
+
OSC.
Dwg. PK-003
20 V
OFF-LINE SWITCHING REGULATORS
for increased integration and reliability in off-line flyback (STR-S6401)
and forward (STR-S6401F) converters operating in a fixed-frequency
PWM mode. Each device incorporates the primary control and drive
circuits with an avalanche-rated power MOSFET. Crucial system
parameters such as switching frequency and maximum duty cycle are
fixed during manufacture. The STR-S6401 and STR-S6401F differ only
in their maximum duty cycle. Control circuit decoupling and layout are
optimized within each device.
voltage lockout with hysteresis, and thermal shutdown protect the
device during all normal and overload conditions. The performance and
reliability of these devices, and their variable-frequency counterparts,
has been proven in substantial volume production.
thermal impedance and steady-state thermal resistance are satisfied in
an over-molded, 9-pin single in-line power package. Similar off-line
switching regulators, with output ratings to 800 V at 5 A, are also
available.
FEATURES
Always order by complete part number:
STR-S6401
STR-S6401F
– WITH POWER MOSFET OUTPUT
STR-S6401 or STR-S6401F .
PWM Flyback Conversion or Forward Conversion
Output Power to 250 W
Pulse-by-Pulse Current Limiting
Fixed-Frequency 100 kHz PWM
Avalanche-Rated Power MOSFET Switch
Soft Start
Internal Under-Voltage Lockout and Thermal Shutdown
Low External Component Count
Over-Molded SIP with Isolated Heat Spreader
These devices are specifically designed to meet the requirements
Cycle-by-cycle and average-current limiting, soft start, under-
The requirements of high dielectric isolation and low transient
AND

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str-s6401 Summary of contents

Page 1

... OSC. circuits with an avalanche-rated power MOSFET. Crucial system parameters such as switching frequency and maximum duty cycle are fixed during manufacture. The STR-S6401 and STR-S6401F differ only in their maximum duty cycle. Control circuit decoupling and layout are optimized within each device. Cycle-by-cycle and average-current limiting, soft start, under- voltage lockout with hysteresis, and thermal shutdown protect the device during all normal and overload conditions ...

Page 2

... STR-S6401 STR-S6401F AND OFF-LINE SWITCHING REGULATORS FUNCTIONAL BLOCK DIAGRAM V IN FDBK 9 7 UVLO REF. R ton R toff 5 8 SOFT SIGNAL START GROUND ALLOWABLE PACKAGE POWER DISSIPATION 62 W MOUNTING SURFACE 60 TEMPERATURE RECOMMENDED MAX. 40 FRAME TEMP. = +100 C 20 FREE AIR 3 TEMPERATURE in C PWM ...

Page 3

... = f=1 MHz iss Turn-on, 10% V phl GS t Turn-off, 90% V plh GS f osc t STR-S6401 on STR-S6401F V OCP(th) I OCP I FDBK V SS(th 200 Operating IN(ON) I Start up IN(OFF All terminals simultaneous reference ...

Page 4

... STR-S6401 STR-S6401F AND OFF-LINE SWITCHING REGULATORS 160 140 120 100 - AMBIENT TEMPERATURE in C 300 250 200 150 100 50 0 -20 TYPICAL CHARACTERISTICS 100 120 140 0 5 Dwg. GK-005 100 AMBIENT TEMPERATURE in C 115 Northeast Cutoff, Box 15036 ...

Page 5

... STR-S6401 STR-S6401F AND OFF-LINE SWITCHING REGULATORS TYPICAL PWM FLYBACK CONVERSION USING STR-S6401 TYPICAL PWM FORWARD CONVERSION USING STR-S6401F WARNING: lethal potentials are present. See text STR-S6401 + 4 WARNING: lethal potentials are present. See text STR-S6401F + ...

Page 6

... STR-S6401 STR-S6401F AND OFF-LINE SWITCHING REGULATORS WARNING — These devices are designed to be operated at lethal voltages and energy levels. Circuit designs that embody these components must conform with applicable safety requirements. Precautions must be taken to prevent accidental contact with power-line potentials. Do not connect grounded test equipment. ...

Page 7

... STR-S6401 STR-S6401F AND OFF-LINE SWITCHING REGULATORS 0.85 +0.2 –0.1 Dimensions in Millimeters (controlling dimensions) 24.2 0.2 T REF M 15.5 0.2 3.3 ø 0.2 3 0.4 2.54 0.65 0.1 +0.2 –0.1 PACKAGE LEAD CENTER CENTER NOTE: Exact body and lead configuration at vendor’s option within limits shown. The products described here are manufactured in Japan by Sanken Electric Co., Ltd ...

Page 8

... STR-S6401 STR-S6401F AND OFF-LINE SWITCHING REGULATORS POWER CONVERSION/POWER MANAGEMENT SWITCHING REGULATOR PMCMs Part Number* Application 3002M 5 V Switching Regulator and Switching Regulator† 3004M 5 V Switching Regulator and Dual 9 V Switching Regulator S5703 Quasi-Resonant Flyback Converter S5707 Quasi-Resonant Flyback Converter ...

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