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5962-8951106V2A PDF预览

5962-8951106V2A

更新时间: 2024-02-13 15:37:42
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脉冲
页数 文件大小 规格书
13页 534K
描述
RAD-TOLERANT CLASS-V REGULATING PULSE WIDTH MODULATOR

5962-8951106V2A 技术参数

生命周期:Active零件包装代码:QLCC
包装说明:QCCN,针数:20
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.53
模拟集成电路 - 其他类型:SWITCHING CONTROLLER控制模式:VOLTAGE-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:35 V
最小输入电压:8 V标称输入电压:20 V
JESD-30 代码:S-CQCC-N20JESD-609代码:e0
长度:8.89 mm功能数量:1
端子数量:20最高工作温度:125 °C
最低工作温度:-55 °C最大输出电流:0.5 A
封装主体材料:CERAMIC, METAL-SEALED COFIRED封装代码:QCCN
封装形状:SQUARE封装形式:CHIP CARRIER
峰值回流温度(摄氏度):NOT SPECIFIED认证状态:Qualified
筛选级别:MIL-PRF-38535 Class V座面最大高度:2.03 mm
表面贴装:YES切换器配置:PUSH-PULL
最大切换频率:400 kHz温度等级:MILITARY
端子面层:TIN LEAD端子形式:NO LEAD
端子节距:1.27 mm端子位置:QUAD
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:8.89 mm
Base Number Matches:1

5962-8951106V2A 数据手册

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UC1525B-SP  
www.ti.com ............................................................................................................................................................................................... SLUS874JANUARY 2009  
RAD-TOLERANT CLASS-V REGULATING PULSE WIDTH MODULATOR  
1
FEATURES  
DESCRIPTION  
QML-V Qualified, SMD 5962-89511  
(1)  
Rad-Tolerant: 30 kRad (Si) TID  
The UC1525B pulse width modulator integrated  
circuit is designed to offer improved performance and  
lowered external parts count when used in designing  
all types of switching power supplies. The on-chip  
5.1-V buried zener reference is trimmed to ±0.75%,  
and the input common-mode range of the error  
amplifier includes the reference voltage, eliminating  
external resistors. A sync input to the oscillator allows  
multiple units to be slaved or a single unit to be  
synchronized to an external system clock. A single  
resistor between the CT and the discharge terminals  
provide a wide range of dead-time adjustment. These  
devices also feature built-in soft-start circuitry with  
8-V to 35-V Operation  
5.1-V Buried Zener Reference Trimmed to  
±0.75%  
100-Hz to 400-kHz Oscillator Range  
Separate Oscillator Sync Terminal  
Adjustable Deadtime Control  
Internal Soft Start  
Pulse-by-Pulse Shutdown  
Input Undervoltage Lockout With Hysteresis  
Latching PWM to Prevent Multiple Pulses  
Dual Source/Sink Output Drivers  
Low Cross Conduction Output Stage  
Tighter Reference Specifications  
only an external timing capacitor required.  
A
shutdown terminal controls both the soft-start circuitry  
and the output stages, providing instantaneous turn  
off through the PWM latch with pulsed shutdown, as  
well as soft-start recycle with longer shutdown  
commands. These functions are also controlled by an  
undervoltage lockout which keeps the outputs off and  
the soft-start capacitor discharged for sub-normal  
input voltages. This lockout circuitry includes  
approximately 500 mV of hysteresis for jitter-free  
operation. Another feature of these PWM circuits is a  
latch following the comparator. Once a PWM pulse  
has been terminated for any reason, the outputs  
remain off for the duration of the period. The latch is  
reset with each clock pulse. The output stages are  
totem-pole designs capable of sourcing or sinking in  
excess of 200 mA. The UC1525B output stage  
features NOR logic, giving a LOW output for an OFF  
state.  
(1) Radiation tolerance is a typical value based upon initial device  
qualification with dose rate = 10 mrad/sec. Radiation Lot  
Acceptance Testing is available - contact factory for details.  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2009, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  

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