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IRIS-A6151 Datasheet(PDF) 1 Page - International Rectifier

Part No. IRIS-A6151
Description  INTEGRATED SWITCHER
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IRIS-A6151 Datasheet(HTML) 1 Page - International Rectifier

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IRIS-A6151
Features
•Small sized 8-pin DIP type full molded package, optimum IC for low-
height SMPS
•Off-timer circuit is provided on the monolithic control IC
• Low start-up circuit current (10uA typ)
•Low circuit current at operation (1.5mA typ)
• 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 Start-up circuit (the power loss in the start-up circuit is
reduced by cutting off the start-up circuit after the IC starts its
operation.)
•Auto Burst Stand-by (realizing input power<0.1W at no load)
•Auto Bias Function (stable burst operation without the interference on
transformer)
•Two operational modes by auto switching functions
For normal operation: PRC mode
For stand-by operation (at light load): Burst mode
•Built-in Leading Edge Blanking Function
•Built-in constant voltage drive circuit
•Various kinds of protection functions
Pulse-by-pulse Overcurrent Protection (OCP)
Overload Protection with auto recovery (OLP)
Overvoltage Protection with latch mode (OVP)
Thermal Shutdown with latch mode (TSD)
INTEGRATED SWITCHER
Package Outline
8 Lead PDIP
Descriptions
IRIS-A6151 is a hybrid IC consisting of a 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 component count and simplifying the circuit design.
Note: PRC is abbreviation for “Pulse Ratio Control” (On-width control with fixed OFF-time).
Typical Connection Diagram
Type
MOSFET
VDSS(V)
RDS(ON)
MAX
ACinput(V)
Pout(W)
Note 1
230±15%
10
85 to 264
8
IRIS-A6151
650
4Ω
Key Specifications
Note 1: The pout (W) represents the thermal rating at PRC Operation. The peak power output is obtained by
approximating 120 to 140% of the above listed value. When the output voltage is low and ON-duty is narrow, the
Pout (W) shall become lower than that of above value.
D
DD
DD
DD
D
O
OO
OC
CC
CP
PP
P
F
FF
FB
BB
B
V
VV
Vc
cc
cc
cc
cG
GG
GN
NN
ND
DD
D
2
22
2
1
11
1
3
33
34
44
4
5
55
5
7
77
7
8
88
8
6
66
6
S
SS
St
tt
ta
aa
ar
rr
rt
tt
tu
uu
up
pp
p
N
NN
NC
CC
C
I
II
IR
RR
RI
II
IS
SS
S-
--
-A
AA
A6
66
61
11
15
55
51
11
1
Data Sheet No. PD 96933A


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