Datasheet > U3848C

U3848C

更新时间： 2024-11-25 03:25:07

品牌	Logo	应用领域
友顺 - UTC		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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中文翻译

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数据手册

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U3848C 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

1 of 13

QW-R103-033.B

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中文翻译

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与U3848C相关器件

型号	品牌	获取价格	描述	数据表
U3848C-D08-T	UTC	获取价格	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS
U3848CL-D08-T	UTC	获取价格	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS
U3848CL-S08-R	UTC	获取价格	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS
U3848CL-S08-T	UTC	获取价格	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS
U3848C-S08-R	UTC	获取价格	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS
U3848C-S08-T	UTC	获取价格	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS
U3848-D08-T	UTC	获取价格	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS
U3848L-D08-T	UTC	获取价格	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS
U3848L-S08-R	UTC	获取价格	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS
U3848L-S08-T	UTC	获取价格	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS