STR-M6511 Datasheet, PDF (1/6 Pages) Allegro MicroSystems – OFF-LINE SWITCHING REGULATOR . WITH POWER MOSFET OUTPUT

STR-M6511
OFF-LINE SWITCHING REGULATOR
– WITH POWER MOSFET OUTPUT
The STR-M6511 is specifically designed to meet the requirement for
increased integration and reliability in off-line flyback converters operat-
DRAIN 1
ing in the quasi-resonant ringing choke mode. The device incorporates
SOURCE 2
T _{COMMON 3}
OVER-CURRENT
C PROTECTION
4
V _{IN 5}
U _{FDBK 6}
D Y _FAULT-LATCH
TRIGGER & 7
RO ^{NL SOFTSTART}
OSC.
FAULT
LATCH
R
S
FAULT
UVLO
REF.
Dwg. PK-002
P ^O _{ABSOLUTE MAXIMUM RATINGS}
D ^E _{Supply Voltage, VIN ........................... 35 V}
E ^{C Drain-Source Voltage, V}_DS ^{.............. 450 V}
N _{Continuous Drain Current, ID ............. 11 A}
U _{E 1 ms Single-Pulse Drain Current,}
IN ^{R IDM ................................................. 40 A}
Single-Pulse Avalanche Energy,
T ^{E E}_A ^{.............................................. 400 mJ}
F _{Soft-Start/Fault-Latch Trigger Voltage,}
N _{E VSS/FL ............................................. 10 V}
O R Feedback Input Current, I_FDBK ........ 20 mA
Over-Current Protection Voltage,
C _{R VOCP ............................................. 3.5 V}
IS ^{O Insulation Voltage,VWM(RMS) ........... 2000 V}
D ^{F Package Power Diss., PD ........ See Graph}
the primary control and drive circuit with a discrete avalanche-rated
power MOSFET.
Crucial system parameters such as maximum ON time and OFF time
are fixed during manufacture. Local control circuit decoupling and layout
are optimized within the device.
Cycle-by-cycle current limiting, soft start, under-voltage lock-out with
hysteresis, over-voltage protection, and thermal shutdown protect the
devices during all normal and overload conditions. Over-voltage protec-
tion, thermal shutdown, or an external fault signal are latched. The dual
requirements of dielectric isolation and low transient thermal impedance
and steady-state thermal resistance are satisfied in an over-molded
single-in-line power package.
Proven in substantial volumes, this device and its fixed-frequency
counterparts represents a significant advance in off-line SMPS reliability
growth and integration. A similar off-line switching regulator, with an
output rating of 800 V at 10 A, is also available.
FEATURES
s Quasi-Resonant Ringing Choke Converter
s Avalanche-Rated Power MOSFET Switch
s Pulse-by-Pulse Current Limiting
s Latched Over-Voltage and Thermal Protection
s Maximum ON Time and OFF Time Set During Manufacture
— ^{FET Junction Temperature, TJ ...... +150°C}
Internal Frame Temperature, T_F ... +125°C
Operating Temperature Range,
s Internal Under-Voltage Lockout with Hysteresis
s Over-Molded SIP with Integral Isolated Heat Spreader
T_A ............................... -20°C to +125°C
Storage Temperature Range,
T_stg ............................. -40°C to +125°C _{Always order by complete part number: STR-M6511 .}
™