产品概述
描述
The EVLSRK1001-PF is a demonstration board, designed for evaluation of the SRK1001 synchronous rectification controller. The SRK1001 implements a control scheme specific for secondary-side synchronous rectification in flyback converters and provides high-current gate-drive outputs for driving N-channel Power MOSFET. The device can operate both in quasi-resonant (QR) applications and in fixed frequency (FF) mixed DCM-CCM applications. The board is provided with a setting suitable for QR application. To use in FF applications, a 100pF capacitor needs to be added in C3. A 120 kΩ resistor (R3) is provided on the TON pin that fixes the blanking after the turn-on to about 1.44 µs. The blanking time after turn-off is set to 3 μs through a 100 kΩ resistor (R4) on TOFF pin. In order to use the DIS/SYNC pin functionality, the user has to remove the zero ohm resistor R9: the PCB already provides a NPN transistor connected to this pin for remote ON/OFF. The board includes the SR MOSFET (PowFLAT 5 x 6 package) and can be easily implemented into an existing converter to substitute rectifier diodes.-
所有功能
- Synchronous rectifier for flyback converter, with fixed turn-on and adaptive turn-off
- VCC range: 3.5 V to 32 V
- DVS sensing voltage: 185V AMR
- Max frequency: 500 kHz
- Internal gate drive for N-channel MOSFET
- SR MOSFET type: BSC110N15NS5 standard level (150 V – 11 mΩ) PowerFLAT 5 x 6
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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 | WEEE Compliant | 材料声明** |
---|---|---|---|---|---|---|
EVLSRK1001-PF | 批量生产 | CARD | 工业 | Ecopack1 | - | |
EVLSRK1001-PF
Package:
CARDMaterial 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 | Order from distributors | 从ST订购 | 核心产品 | 供货状态 | 供应商 | ECCN (US) | ECCN (EU) | Country of Origin | Board production status | Budgetary Price (US$)*/Qty | |
---|---|---|---|---|---|---|---|---|---|---|---|
EVLSRK1001-PF | 3 distributors | SRK1001 | 批量生产 | ST | EAR99 | NEC | ITALY | - | |