Datasheet > 电源电路 > 开关式稳压器或控制器> U3848A-S08-T

U3848A-S08-T

更新时间： 2024-01-10 19:52:57

品牌	Logo	应用领域
友顺 - UTC		稳压器开关式稳压器或控制器电源电路开关式控制器
页数	文件大小	规格书
13页	239K
描述
HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS

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技术参数
数据手册

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U3848A-S08-T 技术参数

生命周期：	Active	Reach Compliance Code：	compliant
风险等级：	5.77	Is Samacsys：	N
Base Number Matches：	1

U3848A-S08-T 数据手册

UNISONIC TECHNOLOGIES CO., LTD

U3848/A/B/C

LINEAR INTEGRATED CIRCUIT

HIGH PERFORMANCE

CURRENT MODE PWM

CONTROLLERS

ꢀ

DESCRIPTION

DIP-8

The UTC U3848/A/B/C is designed to provide several special

enhancements to satisfy the needs: Power-Saving mode for low

standby power, Over Current Protection (OCP), Over Voltage

Protection (OVP), Over Load Protection (OLP), Over Temperature

Protection (OTP) etc protection features. IC will be shutdown when

either protection arise and can auto-restart. Its frequency may be

defined by user through resistor R_Tto external ground. UVLO

featuring typical start-up current 20µA, and V_CC(ON)12.6V, V_CC(OFF)

8.1V. Lower typical operation current Icc 3.7mA at inactive output.

SOP-8

*Pb-free plating product number:

U3848L/U3848AL/U3848BL/U3848CL

The output stage, suitable for driving N-Channel MOSFETs, can

operate to duty cycles approach 70%. The U3848/A/B/C are fully

pin-to-pin compatible with UC3842. But pin R_Tonly connected a

resistor to ground to decide switch frequency, and pin FB with an

4kΩ pull up resistor to internal reference voltage. The U3848/A/B/C

also have soft-start function avoiding overshoot, and controlled

driver output rise edge time t_Rfor low EMI.

ꢀ

FEATURES

* Low startup and operation current

* User defined switching frequency(Norm is 70kHz)

* Max duty cycle 70%

* Power-saving mode for low power

* Under voltage lockout with hysteresis

* Over temperature protection

* Overload protection

* Over voltage protection

* Leading edge blanking

* Soft start

ꢀ

ORDERING INFORMATION

Order Number

Package

Packing

Normal

Lead Free Plating

U3848L-D08-T

U3848L-S08-R

U3848L-S08-T

U3848AL-D08-T

U3848AL-S08-R

U3848AL-S08-T

U3848BL-D08-T

U3848BL-S08-R

U3848BL-S08-T

U3848CL-D08-T

U3848CL-S08-R

U3848CL-S08-T

U3848-D08-T

U3848-S08-R

U3848-S08-T

U3848A-D08-T

U3848A-S08-R

U3848A-S08-T

U3848B-D08-T

U3848B-S08-R

U3848B-S08-T

U3848C-D08-T

U3848C-S08-R

U3848C-S08-T

DIP-8

SOP-8

DIP-8

Tube

Tape Reel

Tube

SOP-8

DIP-8

Tape Reel

Tube

SOP-8

DIP-8

Tape Reel

Tube

SOP-8

Tape Reel

Tube

www.unisonic.com.tw

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