STR-S6401 - OFF-LINE SWITCHING REGULATORS WITH POWER MOSFET OUTPUT
Allegro MicroSystems
Features
s PWM Flyback Conversion or Forward Conversion s Output Power to 250 W s Pulse-by-Pulse Current Limiting s Fixed-Frequency 100 kHz PWM s Avalanche-Rated Power MOSFET Switch s Soft Start s Internal Under-Voltage Lockout and Thermal Shutdown s Low External Component Count s Over-Molded SIP with Isolated Heat Spreader
R O
R
F E
R E.
Always order by complete part number: STR-S6401 or STR-S6401F . ™
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STR-S6401 AND STR-S6401F OFF-LINE.
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STR-S6401 AND STR-S6401F
OFF-LINE SWITCHING REGULATORS – WITH POWER MOSFET OUTPUT
DRAIN 1
LATCH OSC.
Data Sheet 28101
SOURCE
2
GATE POWER GROUND SOFT START OVER-CURRENT PROTECTION
V IN
3
PWM +
4
+
These devices are specifically designed to meet the requirements 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.
STR-S6401 Datasheet
