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Integrated Circuits (ICs)
VIPER27LDTR Converter Offline Flyback Topology 60kHz 16-SO 800V 20 W
Description
The device is an off-line converter with an 800 V rugged power section, a PWM control, two levels of over-current protection, overvoltage and overload protections, hysteretic thermal protection, soft-start and safe auto-restart after any fault condition removal. Burst mode operation and device very low consumption help to meet the standby energy saving regulations.
Advance frequency jittering reduces EMI filter cost. Brown-out function protects the switch mode power supply when the rectified input voltage level is below the normal minimum level specified for the system. The high voltage start-up circuit is embedded in the device.
Features
■ 800 V avalanche rugged power section
■ PWM operation with frequency jittering for low EMI
■ Operating frequency: – 60 kHz for L type – 115 kHz for H type
■ Standby power < 50 mW at 265 Vac
■ Limiting current with adjustable set point
■ Adjustable and accurate overvoltage protection
■ On-board soft-start
■ Safe auto-restart after a fault condition
■ Hysteretic thermal shutdown
Application
■ Auxiliary power supply for consumer and home equipments
■ ATX auxiliary power supply
■ Low / medium power AC-DC adapters
■ SMPS for set-top boxes, DVD players and recorders, white goods
Specification of VIPER27LDTR
|
Category |
Integrated Circuits (ICs) Power Management (PMIC) AC DC Converters, Offline Switches |
|
Mfr |
STMicroelectronics |
|
Series |
VIPer™ plus |
|
Product Status |
Active |
|
Output Isolation |
Isolated |
|
Internal Switch(s) |
Yes |
|
Voltage - Breakdown |
800V |
|
Topology |
Flyback |
|
Voltage - Start Up |
14 V |
|
Voltage - Supply (Vcc/Vdd) |
8.5V ~ 23.5V |
|
Duty Cycle |
80% |
|
Frequency - Switching |
60kHz |
|
Power (Watts) |
20 W |
|
Fault Protection |
Current Limiting, Over Temperature, Over Voltage |
|
Control Features |
- |
|
Operating Temperature |
-40°C ~ 150°C (TJ) |
|
Package / Case |
16-SOIC (0.154", 3.90mm Width) |
|
Supplier Device Package |
16-SO |
|
Mounting Type |
Surface Mount |
