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The device is a high-voltage converter that smartly integrates an 800 V rugged power MOSFET with PWM current-mode control.This IC is capable of meeting more stringent energy-saving standards as it has very low consumption and operates in burst mode under light load. The device features an adjustable extra power timer (EPT) that enables the IC to sustain overload conditions for a few seconds. The integrated HV startup, sense FET and oscillator with jitter allow the advantage of using minimal components in the application. The device features high-level protections like dual-level OCP, output overvoltage, short-circuit, and thermal shutdown with hysteresis. After the removal of a fault condition, the IC is automatically restarted.
主要特性
- 800 V avalanche-rugged power MOSFET allowing achieving ultra wide-range input Vac
- Embedded HV startup and sense FET
- PWM current-mode controller
- OCP with selectable threshold (IDlim) and 2ndOCP with higher value (IDMAX) to protect the IC from transformer saturation or short-circuit of the secondary diode
- 30 mW no-load consumption at 230 Vac
- Two operating frequencies:
- 60 kHz (L type) or 115 kHz (H type)
- Jittered frequency reduces the EMI
- Extra power timer (EPT) blanks the overload current for few seconds
- Output overvoltage protection with tight tolerance and digital noise filter
- Soft-start reduces the stress during startup and increases IC lifetime
- Automatic restart after a fault condition
- Thermal shutdown increases system reliability and IC lifetime
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图片 产品型号 制造商 描述 
STEVAL-ISA125V1 -- 基于VIPer28L的5 V/10 W、60 kHz隔离反激式转换器，具有额外电源管理 
STEVAL-ISA126V1 -- 基于VIPER28HN的5 V-2 A - 115 kHz反激式转换器，具有临时的额外电源管理 产品型号基于VIPer28L的5 V/10 W、60 kHz隔离反激式转换器，具有额外电源管理
基于VIPER28HN的5 V-2 A - 115 kHz反激式转换器，具有临时的额外电源管理
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质量与可靠性
| 产品型号 | Marketing Status | 封装 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| VIPER28HD |
批量生产
|
SO-16 | 工业 | Ecopack2 |
|
| VIPER28HDTR |
批量生产
|
SO-16 | 工业 | Ecopack2 |
|
| VIPER28HN |
批量生产
|
PDIP 7 | 工业 | Ecopack2 |
|
| VIPER28LD |
批量生产
|
SO-16 | 工业 | Ecopack2 |
|
| VIPER28LDTR |
批量生产
|
SO-16 | 工业 | Ecopack2 |
|
| VIPER28LN |
批量生产
|
PDIP 7 | 工业 | Ecopack2 |
VIPER28HD
Package:
SO-16Material Declaration**:
VIPER28HDTR
Package:
SO-16Material Declaration**:
VIPER28HN
Package:
PDIP 7Material Declaration**:
VIPER28LD
Package:
SO-16Material Declaration**:
VIPER28LDTR
Package:
SO-16Material Declaration**:
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持 。
样片和购买
| 产品型号 | 从分销商订购 | 从ST订购 | 供货状态 | ECCN (US) | ECCN (EU) | 包装类型 | 封装 | 温度（ºC） | RDS(on) (Ω) (max) | Transistor Breakdown Voltage (V) (min) | Drain Current (A) (nom) | Country of Origin | Budgetary Price (US$)*/Qty | 更多信息 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||||||
| VIPER28LD | 没有经销商，请联系我们的销售办事处 | 立即购买 |
批量生产
|
EAR99 | NEC | Tube | SO-16 | - | - | 7 | 800 | 0.8 | CHINA | 0.394 / 1k | ||
| VIPER28LN | 5 distributors | 样片和购买 立即购买 |
批量生产
|
EAR99 | NEC | Tube | PDIP 7 | - | - | 7 | 800 | 0.8 | CHINA | 0.415 / 1k | ||
| VIPER28HDTR | 2 distributors | 样片和购买 立即购买 |
批量生产
|
EAR99 | NEC | Tape And Reel | SO-16 | - | - | 7 | 800 | 0.8 | THAILAND | 0.394 / 1k | ||
| VIPER28HN | 2 distributors | 样片和购买 立即购买 |
批量生产
|
EAR99 | NEC | Tube | PDIP 7 | - | - | 7 | 800 | 0.8 | CHINA | 0.415 / 1k | ||
| VIPER28LDTR | 1 distributors | 样片和购买 立即购买 |
批量生产
|
EAR99 | NEC | Tape And Reel | SO-16 | - | - | 7 | 800 | 0.8 | THAILAND | 0.394 / 1k | ||
| VIPER28HD | 没有经销商，请联系我们的销售办事处 | 立即购买 |
批量生产
|
EAR99 | NEC | Tube | SO-16 | - | - | 7 | 800 | 0.8 | CHINA | 0.394 / 1k | ||
