UCC28250

所属类别：ACDC-和-DCDC-电源
产品名称：具有预偏置操作的高级 PWM 控制器
厂商：TI
生产批号：11+
封装：20QFN, 20TSSOP
库存状态：有库存
库存量：32500
最低订购量：1
详细资料：

Product Introduction

The UCC28250 PWM controller is designed for high power density applications that may have stringent pre-bias start-up requirements. The UCC28250 integrated synchronous rectifier controls the output of high-efficiency targets such as half-bridge, full-bridge topologies for high performance, staggered, and push-pull. The UCC27200 half-bridge MOSFET driver driver and UCC2732X provide a complete power converter solution UCC28250 used together.

Externally programmable soft-start, with a pre-biased internal start-up circuit, allows the controller to gradually achieve all output steady-state operating points. UCC28250 configurable primary or secondary school

characteristic

Pre-bias start
Synchronous rectification control outputs (including zero-delay support) with programmable delays
Voltage mode control, input voltage feedforward or current mode control
Primary or secondary side control
3.3 volts, 1.5% accuracy reference output
Switching frequency of 1 MHz
1% accuracy of cycle-by-cycle overcurrent protection output duty cycle matching
Programmable soft start and restart timer hiccups
Thermally enhanced 4 mm x 4 mm QFN - 20 and 20-pin TSSOP packages
apply
- Half-bridge, full-bridge, staggered forward, and push-pull isolated converters
- Telecommunications and datacom power supplies
- Wireless base station power supply
- Server power
- Industrial powertrains

ICs related to UCC28250 include:

Model	Manufacturers	lot number	encapsulation	illustrate
UCC28250	TI	11+	20QFN, 20TSSOP	Advanced PWM controller with pre-bias operation
CX28250-26	ST	08+	ZIP

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UCC28250

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