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VIPER12AS-E Datasheet

  • VIPER12AS-E

  • Low Power OFF-Line SMPS Primary Switcher

  • 453.10KB

  • 21頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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VIPer12ADIP - E
VIPer12AS - E
Low Power OFF-Line SMPS Primary Switcher
Features
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
Fixed 60kHZ Switching Frequency
9V to 38V Wide Range V
DD
Voltage
Current Mode Control
Auxiliary Undervoltage Lockout with Hysteresis
High Voltage Start-up Current Source
Overtemperature, Overcurrent and
Overvoltage Protection with Auto-Restart
Typical power capability
鈥?European (195 - 265 Vac) 8W for SO-8,
13W for DIP-8
鈥?European (85 - 265 Vac) 5W for SO-8,
8W for DIP-8
SO-8
DIP-8
鈻?/div>
Description
The VIPer12A combines a dedicated current
mode PWM controller with a high voltage Power
MOSFET on the same silicon chip.
Block diagram
Typical applications cover off line power supplies
for battery charger adapters, standby power
supplies for TV or monitors, auxiliary supplies for
motor control, etc.
The internal control circuit offers the following
benefits:
鈥?Large input voltage range on the V
DD
pin
accommodates changes in auxiliary supply
voltage. This feature is well adapted to
battery charger adapter configurations.
鈥?Automatic burst mode in low load condition.
鈥?Overvoltage protection in HICCUP mode.
DRAIN
ON/OFF
REGULATOR
60kHz
OSCILLATOR
INTERNAL
SUPPLY
OVERTEMP.
DETECTOR
R1
Q
R2 R3 R4
S
FF
PWM
LATCH
VDD
8/14.5V
_
BLANKING
+
OVERVOLTAGE
LATCH
Q
+
_
0.23 V
+
42V
_
S
R
FF
230
鈩?/div>
1 k鈩?/div>
FB
SOURCE
January 2006
DocRev1
1/21
www.st.com
21

VIPER12AS-E 產(chǎn)品屬性

  • VIPerPlus

  • 2,000

  • 集成電路 (IC)

  • PMIC - AC-DC 轉(zhuǎn)換器，離線開關(guān)

  • VIPER™

  • 隔離

  • 54kHz ~ 66kHz

  • 8 V ~ 50 V

  • 730V

  • 5W

  • 25°C ~ 125°C

  • 8-SOIC（0.154"，3.90mm 寬）

  • 8-SOICN

  • 管件

  • 497-6413-ND - BOARD EVAL VIPER12A LP AC/DC497-5084-ND - EVAL BOARD TRAVEL ADAPTOR 3.6W497-5082-ND - EVAL BOARD FLYBACK PWR SUPPLY 6W497-4932-ND - BOARD POWER SUPPLY 1.8W VIPER12A497-4931-ND - BOARD 6W DUAL OUTPUT VIPER12A497-4930-ND - BOARD 6W SINGLE OUTPUT VIPER12A

  • 497-6791-5VIPER12AS-E-ND

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