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UC1825A-SP

更新时间： 2024-11-12 12:16:55

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
16页	513K
描述
RAD-TOLERANT CLASS-V, HIGH-SPEED PWM CONTROLLER

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UC1825A-SP 数据手册

UC1825A-SP

www.ti.com ..................................................................................................................................................... SLUS873A–JANUARY 2009–REVISED APRIL 2009

RAD-TOLERANT CLASS-V, HIGH-SPEED PWM CONTROLLER

FEATURES

DESCRIPTION

•

QML-V Qualified, SMD 5962-87681

The UC1825A PWM controller is an improved version

of the standard UC1825 family. Performance

enhancements have been made to several of the

circuit blocks. Error amplifier gain bandwidth product

is 12 MHz, while input offset voltage is 2 mV. Current

limit threshold is assured to a tolerance of 5%.

Oscillator discharge current is specified at 10 mA for

accurate dead time control. Frequency accuracy is

improved to 6%. Startup supply current, typically 100

µA, is ideal for off-line applications. The output drivers

are redesigned to actively sink current during UVLO

at no expense to the startup current specification. In

addition each output is capable of 2-A peak currents

during transitions.

(1)

Rad-Tolerant: 30 kRad (Si) TID

Compatible With Voltage-Mode or

Current-Mode Control Methods

•

Practical Operation at Switching Frequencies

to 1 MHz

•

50-ns Propagation Delay to Output

High-Current Dual Totem Pole Outputs

(2-A Peak)

•

Trimmed Oscillator Discharge Current

Low 100-µA Startup Current

Pulse-by-Pulse Current Limiting Comparator

xxx

Latched Overcurrent Comparator With Full

Cycle Restart

xxx

(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.

BLOCK DIAGRAM

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.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...16

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与UC1825A-SP相关器件

型号	品牌	获取价格	描述	数据表
UC1825AVTD1	TI	获取价格	RAD-TOLERANT, HIGH-SPEED PWM CONTROLLER
UC1825AVTD2	TI	获取价格	RAD-TOLERANT, HIGH-SPEED PWM CONTROLLER
UC1825B	TI	获取价格	High Speed PWM Controller
UC1825BDW	ETC	获取价格	Current/Voltage-Mode SMPS Controller
UC1825BDWTR	ETC	获取价格	Current/Voltage-Mode SMPS Controller
UC1825BHKT/EM	TI	获取价格	耐辐射 QMLV、30V 输入、2A 双输出 1MHz PWM 控制器 \| HKT \| 1
UC1825BJ	ROCHESTER	获取价格	2.2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CDIP16, DIP-16
UC1825BJ	TI	获取价格	High Speed PWM Controller
UC1825BJ/883B	ROCHESTER	获取价格	Switching Controller, Current-mode, 2.2A, 1000kHz Switching Freq-Max, CDIP16, PACKAGE-16
UC1825BJ/883BC	TI	获取价格	Switching Controller, Current-mode, 2.2A, 1000kHz Switching Freq-Max, BIPolar, CDIP16,

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