iris-w6756 International Rectifier Corp., iris-w6756 Datasheet

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iris-w6756

Manufacturer Part Number
iris-w6756
Description
Integrated Switcher
Manufacturer
International Rectifier Corp.
Datasheet
• 6-pin SIP type full molded package, optimum IC for low-height SMPS,
distance between high and low voltage pins is 1.8 mm with pin elimination.
• 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
• 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
• Various kinds of protection functions
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.
Features
Description
IRIS-W6756 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)
standardizing of a power supply system reducing external component count and simplifying the circuit design.
Typical Connection Diagram
circuit since the MOSFET guarantees the avalanche energy.
The built-in power MOSFET simplifies the surge
No VDSS de-rating is required.
For middle~heavy load operation : QR mode
For light~middle load operation : 1 Bottom Skip mode
Pulse-by-Pulse Overcurrent Protection (OCP)
Overvoltage Protection with Latch mode (OVP)
Overload Protection with Latch mode (OLP)
The maximum limit of on-time
I I I I R R R R I I I I S S S S - - - - W W W W 6 6 6 6 7 7 7 7 56 56 56 56
S S S S S S S S / / / / O O O O L L L L P P P P
O O O O C C C C P P P P / / / / B B B B D D D D
S S S S / / / / G G G G N N N N D D D D
V V V V c c c c c c c c
F F F F B B B B
D D D D
applications.
absorption
IRIS-W6756
T ype
This IC realizes high efficiency, low noise, downsizing and
Key Specifications
INTEGRATED SWITCHER
MOSFET
VDSS(V)
650
Package Outline
TO-220 Fullpack (7 Lead modified)
RDS(ON)
0.73Ω
IRIS-W6756
MAX
Data Sheet No. PD 96953A
AC input(V)
230 ± 15%
85 to 264
www.irf.com
Pout(W)
Note 1
240
140

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iris-w6756 Summary of contents

Page 1

... The maximum limit of on-time Description IRIS-W6756 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) standardizing of a power supply system reducing external component count and simplifying the circuit design. ...

Page 2

... IRIS-W6756 Absolute Maximum Ratings (Ta=25ºC) Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are absolute voltages referenced to terminals stated, all currents are defined positive into any lead. The thermal resistance and power dissipation ratings are measured under board mounted and still air conditions ...

Page 3

... IRIS-W6756 Electrical Characteristics (for Control IC) Electrical characteristics for control part (Ta=25℃, Vin=20V,unless otherwise specified) Symbol Definition Power Supply Start-up Operation V Operation Start Voltage CC(ON) V Operation Stop Voltage CC(OFF) I Circuit Current in Operation CC(ON) I Circuit Current in Non-Operation CC(OFF) fosc Oscillation Frequency V Soft Start Operation Stop Voltage ...

Page 4

... IRIS-W6756 Electrical Characteristics (for Control IC), Cont’d. Stand-by Operation V Stand-by Operation Start Voltage CC(S) V Stand-by Operation Start Voltage Interval CC(SK) I Stand-by Non-Operation Circuit Current CC( Pin Inflow Current (Stand-by) FB(S) Stand-by Operation FB Pin Threshold V Voltage FB(S) T Minimum ON Time ON(MIN) Protection Operation T Maximum ON Time ON(MAX) V OLP Operation Threshold Voltage ...

Page 5

... Units Note TYP MAX - - V ID=300µA - 300 µ 0.73 Ω I =2. 400 nSec Between channel - 1.5 ℃/W and internal frame IRIS-W6756 MOS FET A.S.O. curve Ta=25ºC Single Pulse 1ms 100 Drain-to-Source Voltage V [V] DS www.irf.com =650V - 0.1ms 1000 ...

Page 6

... C hannel tem p erature T ch [℃ ] IRIS-W6756 Transient thermal resistance curve   100µ Time t [sec] IR IS-W 6 756 Avalanche energy derating curve 50 75 100 10m www.irf.com 150 100m ...

Page 7

... IRIS-W6756 Block Diagram 4 4 + + Reg& Iconst - - Burst Burst Start Control Control Stop Burst OVP + - OLP Soft Start Pin Designation Pin Pin Assignments No ...

Page 8

... IRIS-W6756 Case Outline 10.0±0.2 gate burr 6xP1.27±0.15=7.62±0. Material of Pin : Cu Treatment of Pin : Ni plating + solder dip IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 6-0.74±0.15 +0 ...

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