Data Sheet No. PD 96943A
IRIS-G5624A
INTEGRATED SWITCHER
Features
• Oscillator is provided on the monolithic control 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 (100uA 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.
•Indirect feed-back by built-in error amplifier on Vin terminal
• Built-in constant voltage drive circuit
TO-220 Fullpack (5 Lead)
Key Specifications
• Built-in step drive circuit
MOSFET
VDSS(V)
RDS(ON)
MAX
Pout(W)
Note 1
• Built-in low frequency PRC mode (≒20kHz)
• Various kinds of protection functions
• Pulse-by-pulse Overcurrent Protection (OCP)
• Overvoltage Protection with latch mode (OVP)
• Thermal Shutdown with latch mode (TSD)
Type
AC input(V)
100±15%
120 15%
±
90
120
1.0Ω
IRIS-G5624A
450
Note: The Pout (W) represents the thermal rating at Quasi-Resonant
Operation, and the peak power output is obtained by approximately 120
to 140% 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.
Descriptions
IRIS-G5624A is a hybrid IC consists from power MOSFET and a controller IC, designed for Indirect feed-back Quasi-
Resonant (including low frequency PRC) fly-back converter type SMPS (Switching Mode Power Supply) applications.
This IC realizes high efficiency, low noise, 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-G5600
OCP/FB
Vin
GND
S
D
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