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UC2875N PDF预览

UC2875N

更新时间: 2024-11-06 08:26:23
品牌 Logo 应用领域
德州仪器 - TI 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
19页 740K
描述
Phase Shift Resonant Controller

UC2875N 技术参数

是否无铅:不含铅是否Rohs认证:符合
生命周期:Active零件包装代码:DIP
包装说明:DIP-20针数:20
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:1 week
风险等级:0.64Samacsys Confidence:
Samacsys Status:ReleasedSamacsys PartID:418256
Samacsys Pin Count:20Samacsys Part Category:Integrated Circuit
Samacsys Package Category:OtherSamacsys Footprint Name:DIP254P762X508-20
Samacsys Released Date:2017-01-12 12:59:53Is Samacsys:N
其他特性:CAN ALSO BE CONFIGURED IN CURRENT MODE; PWM CONTROL TECHNIQUE ALSO POSSIBLE模拟集成电路 - 其他类型:SWITCHING CONTROLLER
控制模式:VOLTAGE-MODE控制技术:RESONANT CONTROL
最大输入电压:20 V最小输入电压:11 V
标称输入电压:12 VJESD-30 代码:R-PDIP-T20
JESD-609代码:e3长度:24.33 mm
功能数量:1端子数量:20
最高工作温度:85 °C最低工作温度:-25 °C
最大输出电流:3 A最大输出电压:5.08 V
最小输出电压:4.92 V标称输出电压:5 V
封装主体材料:PLASTIC/EPOXY封装代码:DIP
封装等效代码:DIP20,.3封装形状:RECTANGULAR
封装形式:IN-LINE峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified座面最大高度:4.57 mm
子类别:Switching Regulator or Controllers最大供电电流 (Isup):30 mA
标称供电电压 (Vsup):12 V表面贴装:NO
切换器配置:PHASE-SHIFT最大切换频率:2000 kHz
技术:BIPOLAR温度等级:OTHER
端子面层:Matte Tin (Sn)端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:6.35 mm
Base Number Matches:1

UC2875N 数据手册

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application  
INFO  
UC1875/6/7/8  
UC2875/6/7/8  
UC3875/6/7/8  
available  
Phase Shift Resonant Controller  
FEATURES  
DESCRIPTION  
Zero to 100% Duty Cycle Control  
The UC1875 family of integrated circuits 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 combi-  
nation with resonant, zero-voltage switching for high efficiency performance  
at high frequencies. This family of circuits may be configured to provide  
control in either voltage or current mode operation, with a separate  
over-current shutdown for fast fault protection.  
Programmable Output Turn-On Delay  
Compatible with Voltage or Current  
Mode Topologies  
Practical Operation at Switching  
Frequencies to 1MHz  
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).  
Four 2A Totem Pole Outputs  
10MHz Error Amplifier  
Undervoltage Lockout  
With the oscillator capable of operation at frequencies in excess of 2MHz,  
overall switching frequencies to 1MHz are practical. In addition to the stan-  
dard free running mode, with the CLOCKSYNC pin, the user may configure  
these devices to accept an external clock synchronization signal, or may  
lock together up to 5 units with the operational frequency determined by  
the fastest device.  
Low Startup Current –150µA  
Outputs Active Low During UVLO  
Soft-Start Control  
Latched Over-Current Comparator  
With Full Cycle Restart  
Protective features include an undervoltage lockout which maintains all out-  
puts in an active-low state until the supply reaches a 10.75V threshold.  
1.5V hysteresis is built in for reliable, boot-strapped chip supply.  
Over-current protection is provided, and will latch the outputs in the OFF  
state within 70nsec of a fault. The current-fault circuitry implements  
Trimmed Reference  
full-cycle restart operation.  
(continued)  
BLOCK DIAGRAM  
UDG-95073  
SLUS229B - JULY 1999 - REVISED JUNE 2004  

UC2875N 替代型号

型号 品牌 替代类型 描述 数据表
5962-9455501MRA TI

完全替代

Phase Shift Resonant Controller
UC3875N TI

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Phase Shift Resonant Controller

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