Datasheet > 电源电路 > 开关式稳压器或控制器> UC1525B-SP

UC1525B-SP

更新时间： 2024-09-15 12:47:15

品牌	Logo	应用领域
德州仪器 - TI		脉冲
页数	文件大小	规格书
13页	534K
描述
RAD-TOLERANT CLASS-V REGULATING PULSE WIDTH MODULATOR

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

UC1525B-SP 数据手册

UC1525B-SP

www.ti.com ............................................................................................................................................................................................... SLUS874–JANUARY 2009

RAD-TOLERANT CLASS-V REGULATING PULSE WIDTH MODULATOR

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.

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.

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...13

中文翻译

下载PDF

与UC1525B-SP相关器件

型号	品牌	获取价格	描述	数据表
UC1526	TI	获取价格	Regulating Pulse Width Modulator
UC1526_07	TI	获取价格	Regulating Pulse Width Modulator
UC1526_16	TI	获取价格	Regulating Pulse Width Modulator
UC1526A	TI	获取价格	Regulating Pulse Width Modulator
UC1526A_15	TI	获取价格	Regulating Pulse Width Modulator
UC1526ADW	TI	获取价格	Regulating Pulse Width Modulator
UC1526AJ	TI	获取价格	Regulating Pulse Width Modulator
UC1526AJ/883BC	TI	获取价格	0.2A SWITCHING CONTROLLER, 550kHz SWITCHING FREQ-MAX, CDIP18
UC1526AJ883B	TI	获取价格	Regulating Pulse Width Modulator
UC1526AL	TI	获取价格	Regulating Pulse Width Modulator

与UC1525B-SP相关文章

摩尔斯微电子在美国约书亚树国家公园测试 Wi-Fi HaLow
2024-09-18

6
贸泽上架Tallysman TW5386智能GNSS天线
2024-09-18

6
SL74HC10N：高性能三输入与非门解析
2024-09-03

84
AIC1781A 电池充电控制器深度解析
2024-09-03

78

产品中心

服务支持

精选活动

关于我们

帮助中心

UC1525B-SP

UC1525B-SP 数据手册

与UC1525B-SP相关器件

与UC1525B-SP相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

UC1525B-SP

UC1525B-SP 数据手册

与UC1525B-SP相关器件

与UC1525B-SP相关文章

您还可以找

您在本页遇到什么问题？