IRIS-X6757 Datasheet, PDF (1/9 Pages) International Rectifier – INTEGRATED SWITCHER

IRIS-X6757
Features
• 7-pin SIP type full molded package, optimum IC for low-height SMPS.
INTEGRATED SWITCHER
Package Outline
• 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.
• Low start-up circuit current (100uA max)
•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
• Built-in step drive circuit
• Built-in low frequency PWM mode ( 22 kHz)
• UVLO Burst Standby
• Two operational modes by auto switching functions according to load
For middle~heavy load operation : QR mode
TO-220 Fullpack (7 Lead)
For light~middle load operation : 1 Bottom Skip mode
• Various kinds of protection functions
Key Specifications
Pulse-by-Pulse Overcurrent Protection (OCP)
Overvoltage Protection with Latch mode (OVP)
Overload Protection with Latch mode (OLP)
The maximum limit of on-time
T ype
MOSFET
VDSS(V)
IRIS-X6757
650
RDS(ON)
MAX
AC input(V)
230 15%
85 to 264
P out (W )
Note 1
300
180
Description
IRIS-X6757 is a hybrid IC consisting of a power MOSFET and a controller IC, designed for Quasi-Resonant (including low frequency PWM)
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 component count and simplifying the circuit design.
Typical Connection Diagram









Note 1:
The Pout (W) represents the thermal rating at Quasi-Resonant operation, and the peak power output is obtained by approximating 120 to
140 % of the above listed value. When the output voltage is low, and the ON-duty is narrow, the Pout (W) shall become lower than that
of the above.
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