VIPER12ASTR-E STMicroelectronics, VIPER12ASTR-E Datasheet - Page 8

IC OFFLINE SWIT PWM SMPS 8SOIC

VIPER12ASTR-E

Manufacturer Part Number
VIPER12ASTR-E
Description
IC OFFLINE SWIT PWM SMPS 8SOIC
Manufacturer
STMicroelectronics
Series
VIPER™r
Datasheet

Specifications of VIPER12ASTR-E

Output Isolation
Isolated
Frequency Range
54 ~ 66kHz
Voltage - Input
8 ~ 50 V
Voltage - Output
730V
Power (watts)
5W
Operating Temperature
25°C ~ 125°C
Package / Case
8-SOIC (0.154", 3.90mm Width)
Operating Temperature (max)
150C
Operating Temperature (min)
-40C
Pin Count
8
Mounting
Surface Mount
Package Type
SO
Case Length
5(Max)mm
Screening Level
Automotive
Mounting Style
SMD/SMT
Operating Supply Voltage
0 V to + 50 V
For Use With
497-6413 - BOARD EVAL VIPER12A LP AC/DC497-5084 - EVAL BOARD TRAVEL ADAPTOR 3.6W497-5082 - EVAL BOARD FLYBACK PWR SUPPLY 6W497-4932 - BOARD POWER SUPPLY 1.8W VIPER12A497-4931 - BOARD 6W DUAL OUTPUT VIPER12A497-4930 - BOARD 6W SINGLE OUTPUT VIPER12A
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-6792-2
VIPER12ASTR-E

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Wide range of VDD voltage
5
8/21
Wide range of V
The V
design to achieve various behaviors. In
chosen to supply the device with two benefits:
As soon as the device starts switching, it immediately receives some energy from the
auxiliary winding. C5 can be therefore reduced and a small ceramic chip (100 nF) is
sufficient to insure the filtering function. The total start up time from the switch on of
input voltage to output voltage presence is dramatically decreased.
The output current characteristic can be maintained even with very low or zero output
voltage. Since the TSM101 is also supplied in forward mode, it keeps the current
regulation up whatever the output voltage is.The V
the input voltage, that is to say with a ratio of about 4 for a wide range application.
DD
pin voltage range extends from 9 V to 38 V. This feature offers a great flexibility in
DD
Doc ID 11977 Rev 2
voltage
Figure 4 on page 7
DD
pin voltage may vary as much as
a forward configuration has been
VIPER12A-E

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