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UC2886DTR PDF预览

UC2886DTR

更新时间: 2024-11-21 19:55:03
品牌 Logo 应用领域
德州仪器 - TI 开关光电二极管
页数 文件大小 规格书
9页 194K
描述
1.5A SWITCHING CONTROLLER, 115kHz SWITCHING FREQ-MAX, PDSO16, SOIC-16

UC2886DTR 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:SOP,Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.88模拟集成电路 - 其他类型:SWITCHING CONTROLLER
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:20 V最小输入电压:10.3 V
标称输入电压:12 VJESD-30 代码:R-PDSO-G16
JESD-609代码:e4长度:9.9 mm
湿度敏感等级:1功能数量:1
端子数量:16最高工作温度:85 °C
最低工作温度:-25 °C最大输出电流:1.5 A
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):220认证状态:Not Qualified
座面最大高度:1.75 mm表面贴装:YES
切换器配置:SINGLE最大切换频率:115 kHz
温度等级:OTHER端子面层:NICKEL PALLADIUM GOLD
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:3.9 mmBase Number Matches:1

UC2886DTR 数据手册

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application  
INFO  
UC2886  
UC3886  
available  
Average Current Mode PWM Controller IC  
FEATURES  
DESCRIPTION  
10.3V - 20V Operating Range  
The UC3886 family of PWM controller ICs is designed for DC-to-DC con-  
verters with average current mode control. It is designed for use in con-  
junction with the UC3910 4-bit DAC and Voltage Monitor. The UC3886  
drives an external N-channel MOSFET and can be used to power the In-  
tel Pentium® Pro and other high-end microprocessors.  
Low Offset Voltage Amplifier  
High Bandwidth Current and Voltage  
Amplifiers  
The UC3886 in conjunction with the UC3910 converts 5VDC to an adjust-  
able output ranging from 2.0V to 3.5V in 100mV steps with 35mV DC sys-  
tem accuracy.  
Low Offset Current Sense Amplifier  
Undervoltage Lockout  
Trimmed 5 Volt Reference  
The oscillator is programmed by the user’s selection of an external resis-  
tor and capacitor, and is designed for 300kHz typical operation.  
Externally Programmable Oscillator  
Charge Current  
The voltage and current amplifiers have 3.5MHz gain-bandwidth product  
to satisfy high performance system requirements.  
1.5A Peak Totem Pole Output  
The internal current sense amplifier permits the use of a low value current  
sense resistor, minimizing power loss. It has inputs and outputs accessi-  
ble to allow user-selection of gain-setting resistors, and is internally com-  
pensated for a gain of 5 and above. The command voltage input is  
buffered and provided for use as the reference for the current sense am-  
plifier.  
Available in 16-pin DIL or SOIC  
Packages  
The output of the voltage amplifier (input to the current amplifier) is  
clamped to 1 volt above the command voltage to serve as a current limit.  
The gate output can be disabled by bringing the CAO/ENBL pin to below  
0.8 volts.  
BLOCK DIAGRAM  
UDG-95098-2  
SLUS231 - JUNE 1998  

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