STR-S6411 Datasheet, PDF (1/8 Pages) Allegro MicroSystems – OFF-LINE SWITCHING REGULATORS . WITH POWER MOSFET OUTPUT

STR-S6411 AND
STR-S6411F
OFF-LINE SWITCHING REGULATORS
– WITH POWER MOSFET OUTPUT
These devices are specifically designed to meet the requirements
for increased integration and reliability in off-line flyback (STR-S6411)
DRAIN 1
and forward (STR-S6411F) converters operating in a fixed-frequency
PWM mode. Each device incorporates the primary control and drive
SOURCE 2
GATE ₃
T _POWER
GROUND ⁴
C _SOFT
START ⁵
U OVER-CURRENT
PROTECTION
6
D Y VIN 7
O ^{L SIGNAL}
GROUND
8
R ^{N FDBK 9}
LATCH
OSC.
PWM
UVLO
REF.
P ^O _Dwg.PK-003
D ^E _{ABSOLUTE MAXIMUM RATINGS}
E ^C _{Supply Voltage, VIN ............................ 35 V}
U ^{N Drain-Source Voltage, V}DS ^{............... 800 V}
E _{Drain Current, ID}
N continuous ..................................... ±5 A
I ^R single pulse, t_w ≤1 ms .................. ±20 A
T ^{E Avalanche Energy, EA}
F ^{single pulse ............................... 400 mJ}
N ^{Gate-Source Voltage, V}_GS ^{................ ±20 V}
E _{Gate-Drive Current Range,}
O R I_G ................................. -0.7 A to +1.5 A
Over-Current Protection Voltage Range,
C _{R VOCP ............................. -0.3 V to +4.0 V}
S _{Insulation RMS Voltage,}
I ^O _{VWM(RMS) ..................................... 2000 V}
D ^{F Package Power Dissipation,}
circuits with an avalanche-rated high-voltage power MOSFET. Crucial
system parameters such as switching frequency and maximum duty
cycle are fixed during manufacture. The STR-S6411 and STR-S6411F
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. The performance and
reliability of these devices, and their variable-frequency counterparts,
has been proven in substantial volume production.
The requirements of high dielectric isolation and low transient
thermal impedance and steady-state thermal resistance are satisfied in
an over-molded, 9-pin single in-line power package.
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
— ^{PD ........................................ See Graph}
FET Channel Temperature, T_J ...... +150°C
Internal Frame Temperature, T_F ... +125°C
Operating Temperature Range,
T_A ............................... -20°C to +125°C
Storage Temperature Range,
Always order by complete part number:
T_stg ............................. -30°C to +125°C
STR-S6411 or STR-S6411F .
™