产品概述
描述
The SRK2001 controller implements a control scheme specific for secondary side synchronous rectification in LLC resonant converters that use a transformer with center tap secondary winding for full wave rectification.
It provides two high current gate drive outputs, each capable of directly driving one or more N-channel power MOSFET. Each gate driver is controlled separately and an interlock logic circuit prevents the two synchronous rectifier MOSFET from conducting simultaneously.
The control scheme ensures that each synchronous rectifier is switched ON as the corresponding half-winding starts conducting and OFF as its current falls to zero.
The turn-on logic with adaptive masking time and adaptive turn-off logic allow maximizing the conduction time of the SR MOSFET, eliminating the need for a parasitic inductance compensation circuit.
The low consumption mode of the device allows meeting the most stringent requirements for converter power consumption in light-load and no-load conditions.
A very low external component count is required when using this device.
-
All features
- Secondary side synchronous rectification controller optimized for LLC resonant converter
- Dual gate driver for N-channel MOSFET
- Adaptive turn-off logic
- Turn-on logic with adaptive masking time
- Auto-compensation of parasitic inductance
- Low consumption mode: 50 μA quiescent current
- VCC operating voltage range 4.5 V to 32 V
- High voltage drain-to-source Kelvin sensing for each SR MOSFET
- 35 ns total delay at turn-off
- Protection against current reversal
- Safe management of load transient, light-load and startup conditions
- Intelligent automatic sleep mode at light-load with user programmable enter/exit load levels, with soft transitions and function disable
- Programmable exit load levels from burst mode
- Compatible with standard level MOSFET
- SSOP10 package
特别推荐
EDA Symbols, Footprints and 3D Models
STMicroelectronics - SRK2001
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
Please select one model supplier :
Symbols
Footprints
3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | 符合RoHS级别 | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| SRK2001 | Active 产品已量产 | SSOP 10 | Industrial | Ecopack2 | - | - | |
| SRK2001TR | Active 产品已量产 | SSOP 10 | Industrial | Ecopack2 | - | - |
(**) 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。
You’re now leaving st.com and will be re-directed to our Partner’s website.
For the latest innovations and solutions from ST, sign up for our newsletters.
Sample & Buy
| Part Number | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SRK2001TR | | | distributors 无法联系到经销商，请联系我们的销售办事处 | ||||||||||
| SRK2001 | | | distributors 无法联系到经销商，请联系我们的销售办事处 |
SRK2001TR Active
SRK2001 Active