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VIPER35LD

VIPerPlus family: Quasi-resonant high performance off line high voltage converter

Manufacturer: STMicroelectronics, Inc
Mfr.Part #: VIPER35LD
Datasheet: VIPER35LD Datasheet (PDF)
Output Isolation: Isolated
Internal Switch(s): Yes
Voltage - Breakdown: 800V
Topology: Flyback
EDA/CAD Models: Request Free CAD Models for VIPER35LD

Email: [email protected]

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Tel: +852 95804164

VIPER35LD General Description

VIPER35 is a high voltage converter, which smartly integrates an 800 V rugged power MOSFET with a quasi-resonant current mode PWM control. This IC meets severe energy saving standards as it has very low consumption and operates in burst mode under light load conditions.The VIPER35 features the brown-out enabling the IC to set the switch-off and switch-on threshold independently one of each other. The quasiresonant operation reduces the level of EMI and the quantity of components in the application.The quasi-resonant operation reduces the switching losses and improves power conversion efficiency. The device features high level protections such as: output overvoltage, shortcircuit and thermal shutdown with hysteresis.After the removal of a fault condition, the IC is automatically restarted.

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Key Features

800 V avalanche-rugged power MOSFET allowing ultra wide range input V_AC to be achieved
Embedded HV start-up and senseFET
Built-in soft-start
Quasi-resonant current mode PWM controller with drain current limit (I_Dlim)
Multifunction ZCD pin:
- Zero-current detection
- OCP threshold (_IDlim) setup
- Output OVP (auto-restart)
- Feed-forward compensation
Support isolated flyback topology with optocoupler
Frequency limit:
- 136 kHz (L type), 225 kHz (H type)
Less than 30 mW @ 230 V_AC in no-load condition
Brown-out set through resistor divider
Short-circuit protection (auto-restart)
Hysteretic thermal shutdown

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)AC DC Converters, Offline Switches	Series	-
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	-	Frequency - Switching	136kHz
Power (Watts)	22 W	Fault Protection	Current Limiting, Over Temperature, Over Voltage, Short Circuit
Control Features	-	Operating Temperature	-40°C ~ 150°C (TJ)
Mounting Type	Surface Mount	Base Product Number	VIPER35
Product Category	AC/DC Converters	Mounting Style	SMD/SMT
Output Voltage	800 V	Output Power	22 W
Input / Supply Voltage - Min	8.5 V	Input / Supply Voltage - Max	23.5 V
Switching Frequency	136 kHz	Operating Supply Current	2 mA
Minimum Operating Temperature	- 40 C	Maximum Operating Temperature	+ 150 C
Isolation	Isolated	Moisture Sensitive	Yes
Number of Outputs	1 Output	Product	AC/DC Converters
Product Type	AC/DC Converters	Factory Pack Quantity	1000
Subcategory	PMIC - Power Management ICs	Tradename	VIPerPlus
Type	Quasi Resonant	Unit Weight	0.007079 oz