UC1844A集成电路（IC）的PMIC-稳压器-DCDC开关式控制器规格书PDF中文资料

厂商型号	UC1844A
参数属性	UC1844A 封装/外壳为8-SOIC（0.154"，3.90mm 宽）；包装为管件；类别为集成电路（IC）的PMIC-稳压器-DCDC开关式控制器；产品描述：IC REG CTRLR BST FLYBK PWM 8SOIC
功能描述	CURRENT-MODE PWM CONTROLLER
封装外壳	8-SOIC（0.154"，3.90mm 宽）
文件大小	706.22 Kbytes
页面数量	17 页
生产厂商	TI
中文名称	德州仪器
网址	网址
数据手册	下载地址一下载地址二到原厂下载
更新时间	2025-10-13 23:00:00
人工找货	UC1844A价格和库存，欢迎联系客服免费人工找货

Controlled Baseline

− One Assembly/Test Site, One Fabrication

Site

Extended Temperature Performance of

−55°C to 125°C

Enhanced Diminishing Manufacturing

Sources (DMS) Support

Enhanced Product Change Notification

Qualification Pedigree†

Optimized for Off-line and DC-to-DC

Converters

Low Start Up Current (<0.5 mA)

Trimmed Oscillator Discharge Current

Automatic Feed Forward Compensation

Pulse-by-Pulse Current Limiting

Enhanced Load Response Characteristics

Under-Voltage Lockout With Hysteresis

Double Pulse Suppression

High Current Totem Pole Output

Internally Trimmed Bandgap Reference

500 kHz Operation

Low RO Error Amp

description

The UC1842A/3A/4A/5A family of control ICs is a pin-for-pin compatible improved version of the UC3842/3/4/5

family. Providing the necessary features to control current mode switched mode power supplies, this family has

the following improved features. Start up current is guaranteed to be less than 0.5 mA. Oscillator discharge is

trimmed to 8.3 mA. During under voltage lockout, the output stage can sink at least 10 mA at less than 1.2 V

for VCC over 5 V.

The difference between members of this family are shown in the table below.