IRIS-A6351 Datasheet, PDF (1/7 Pages) International Rectifier – INTEGRATED SWITCHER

Data Sheet No. PD 96936A
IRIS-A6351
Features
INTEGRATED SWITCHER
• Oscillator is provided on the monolithic control IC with adopting On-Chip-
Trimming technology.
Package Outline
• Small temperature characteristics variation by adopting a comparator to
compensate for temperature on the control part.
• 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
8 Lead PDIP
• Various kinds of protection functions
• Pulse-by-pulse Overcurrent Protection (OCP)
• Overvoltage Protection with latch mode (OVP)
• Thermal Shutdown with latch mode (TSD)
Descriptions
Key Specifications
MOSFET RDS(ON)
Pout(W)
Type
VDSS(V)
MAX
ACinput(V)
Note 1
230±15%
10
IRIS-A6351
650
3.95Ω
85 to 264
8
Note 1: The Pout(W) represents the thermal rating at PRC Operation, and the
peak power output is obtained by approximately 120 to 150% of the above
listed. When the output voltage is low and ON-duty is narrow, the Pout(W)
shall become lower than that of above.
IRIS-A6351 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 “Pulse Ratio Control” (On-width control with fixed OFF-time).
Typical Connection Diagram
IRIS-A6351
1
8
2
7
3
6
4
5
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