UC2875-EP 增强型产品相移谐振控制器
The UC2875 integrated circuit implements control of a bridge power stage by phase-shifting the switching of one half-bridge with respect to the other, allowing constant frequency pulse-width modulation in combination with resonant, zero-voltage switching for high efficiency performance at high frequencies. This circuit may be configured to provide control in either voltage or current mode operation, with a separate over-current shutdown for fast fault protection.
A programmable time delay is provided to insert a dead-time at the turn-on of each output stage. This delay, providing time to allow the resonant switching action, is independently controllable for each output pair (A-B, C-D).
With the oscillator capable of operation at frequencies in excess of 2 MHz, overall switching frequencies to 1 MHz are practical
|
UC2875-EP |
| Topology |
Full-Bridge |
| Control Method |
Current,Voltage |
| Duty Cycle (Max) (%) |
100 |
| Frequency (Max) (kHz) |
1000 |
| Pin/Package |
28SOIC |
| Regulated Outputs (#) |
4 |
| Operating Temperature Range (C) |
-25 to 110 |
| Rating |
HiRel Enhanced Product |
UC2875-EP 特性
- Controlled Baseline
- One Assembly/Test Site, One Fabrication Site
- Extended Temperature Performance of –25°C to 110°C
- Enhanced Diminishing Manufacturing Sources (DMS) Support
- Enhanced Product Change Notification
- Qualification Pedigree
- Zero to 100% Duty Cycle Control
- Programmable Output Turn-On Delay
- Compatible with Voltage or Current Mode Topologies
- Practical Operation at Switching Frequencies to 1 MHz
- Four 2 A Totem Pole Outputs
- 10 MHz Error Amplifier
- Under-Voltage Lockout
- Low Startup Current –150 µA
- Outputs Active Low During UVLO
- Soft-Start Control
- Latched Over-Current Comparator With Full Cycle Restart
- Trimmed Reference
UC2875-EP 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| UC2875SDWREP |
ACTIVE |
-25 to 110 |
8.55 | 100u |
SOIC (DW) | 28 |
1000 | LARGE T&R |
|
| V62/04752-01XE |
ACTIVE |
-25 to 110 |
8.55 | 100u |
SOIC (DW) | 28 |
1000 | LARGE T&R |
|
UC2875-EP 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| UC2875SDWREP |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
UC2875SDWREP |
UC2875SDWREP |
| V62/04752-01XE |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
V62/04752-01XE |
V62/04752-01XE |
UC2875-EP 工具与软件
UC2875-EP 应用技术支持与电子电路设计开发资源下载
- UC2875-EP数据资料 dataSheet 下载.PDF
- TI 德州仪器电源管理选型与价格参考 . xls
- Current Doubler Rectifier Offers Ripple Current Cancellation
- Synchronous Rectifiers of a Current Doubler
- A Power Management Solution for Efficient, Multiple Output Applications
- DN-63 The Current-Doubler Rectifier: An Alternative Rectification Technique
