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VIPER31SP Datasheet(PDF) 1 Page - STMicroelectronics

Part # VIPER31SP
Description  BATTERY CHARGER PRIMARY I.C.
PDF  16 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

VIPER31SP Datasheet(HTML) 1 Page - STMicroelectronics

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VIPer31SP
BATTERY CHARGER PRIMARY I.C.
ADVANCE DATA
January 1998
BLOCK DIAGRAM
SC12000
R3
R4
R2
R1
Q
PWM
LATCH
FF
OSCILLATOR
10 V
REGULATOR
UVLO
LOGIC
+
-
29 V
OVERTEMP.
DETECTOR
2.6 V
+
-
-
+
ON/OFF
CURRENT
REGULATION
-+
200 ns
BLANKING
+
-
1.5 A
VCC
VDD
GND
CREF
CSENSE
DSENSE
SOURCE
DRAIN
OSC
COMP
FB
T YPE
VDSS
In
RDS(on)
VI Per31SP
600 V
1 A
6.5
Ω
FEATURE
s
RECTANGULAR CHARACTERISTIC,
WITHOUT OPTOCOUPLER
s
INTERNALLY TRIMMED CURRENT
REFERENCE
s
FIXED SWITCHING FREQUENCY,
ADJUSTABLE UP TO 150 KHZ
s
AUXILIARY VOLTAGE REGULATOR
s
SOFT START AND SHUT DOWN CONTROL
s
AUTOMATIC BURST MODE OPERATION IN
STAND-BY CONDITION ABLE TO MEET
”BLUE ANGEL” NORM (<1W TOTAL POWER
CONSUMPTION)
s
UNDERVOLTAGE LOCK-OUT WITH
HYSTERESIS
s
INTEGRATED START UP SUPPLY
s
AVALANCHE RUGGED
s
OVERVOLTAGE PROTECTION
s
OVERTEMPERATURE PROTECTION
s
CYCLE BY CYCLE CURRENT LIMITATION
s
DEMAGNETISATION CONTROL
DESCRIPTION
VIPer31SP combines on the same silicon chip a
PWM
control
dedicated
to
output
current
regulation together with an optimised high voltage
avalanche
rugged
vertical
power
MOSFET
(600V/1A). Typical applications cover battery
chargers with constant current and constant
voltage
output
characteristics,
without
any
optocoupler between primary and secondary
sections. Typical output power capability is 15 W
in wide range condition and 30 W in single range
or
with
doubler
configuration.
Burst
mode
operation is an additional feature of this device,
offering the possibility to operate in no load
condition with an input power as low as 1W. This
feature insures the compliance towards ”Blue
Angel” norm and other similar ones.
Power SO-10
1
10
1/16


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