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IRISa6331 Datasheet, PDF (1/7 Pages) International Rectifier – INTEGRATED SWITCHER | |||
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IRIS-A6331
Features
INTEGRATED SWITCHER
⢠Oscillator is provided on the monolithic control with adopting On-Chip-
Trimming technology.
⢠Small temperature characteristics variation by adopting a comparator to
compensate for temperature on the control part.
Package Outline
⢠Low start-up circuit current (50uA max)
⢠Built-in Active Low-Pass Filter for stabilizing the operation in case of light
load
⢠Avalanche energy guaranteed MOSFET with high VDSS
⢠The built-in power MOSFET simplifies the surge absorption circuit since the
MOSFET guarantees the avalanche energy.
⢠No VDSS de-rating is required.
⢠Built-in constant voltage drive circuit
⢠Various kinds of protection functions
⢠Pulse-by-pulse Overcurrent Protection (OCP)
8 Lead PDIP
⢠Overvoltage Protection with latch mode (OVP)
⢠Thermal Shutdown with latch mode (TSD)
Key Specifications
Type
MOSFET
VDSS(V)
RDS(ON)
MAX
ACinput(V)
Pout(W)
Note 1
Descriptions
IRIS-A6331
500
3.95Ω 100/120±15%
10
IRIS-A6331 is a hybrid IC consists from power MOSFET and a controller IC, designed for PRC
fly-back converter type SMPS (Switching Mode Power Supply) applications, applicable for PRC
operation for small power SMPS. This IC realizes downsizing and standardizing of a power supply
system reducing external components count and simplifying the circuit designs. (Note). PRC is
abbreviation of âPulse Ratio Controlâ (On-width control with fixed OFF-time).
Typical Connection Diagram
IRIS-A6331
1
8
2
7
3
6
4
5
www.irf.com 1
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