Datasheet > 电源电路 > 开关式稳压器或控制器> IMP38C42EPD

IMP38C42EPD

更新时间： 2024-02-13 20:11:48

品牌	Logo	应用领域
A1PROS		稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管信息通信管理
页数	文件大小	规格书
10页	161K
描述
BiiCMOS Currentt--Mode BiiCMOS Currentt--Mode

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技术参数
数据手册

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IMP38C42EPD 技术参数

生命周期：	Obsolete	零件包装代码：	SOIC
包装说明：	SOP,	针数：	14
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.84
模拟集成电路 - 其他类型：	SWITCHING CONTROLLER	控制模式：	CURRENT-MODE
控制技术：	PULSE WIDTH MODULATION	最大输入电压：	2.55 V
最小输入电压：	2.45 V	标称输入电压：	2.5 V
JESD-30 代码：	R-PDSO-G14	长度：	9 mm
功能数量：	1	端子数量：	14
最高工作温度：	85 °C	最低工作温度：	-40 °C
最大输出电流：	1 A	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	认证状态：	Not Qualified
座面最大高度：	2.65 mm	表面贴装：	YES
切换器配置：	PUSH-PULL	最大切换频率：	1000 kHz
技术：	BICMOS	温度等级：	INDUSTRIAL
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	宽度：	7.5 mm

IMP38C42EPD 数据手册

IMP38C/HC/42/3/4/5

OWER

ANAGEMENT

Key Features

BiCMOS Current-Mode

PWM Controllers

ꢀ

384x Series Pinout with BiCMOS Technology

Zero Cross-Conduction Current by Design

1MHz Operation

65ns Maximum Current-Sense Delay

120µA Maximum Start-Up Current

1.5mA Maximum Operating Current

High Output Current Drive

– 1.0A, IMP38HC4x

– 0.5A, IMP38C4x

20V Maximum Supply Voltage

2.5V, 1%, Trimmed Error Amplifier Reference

Trimmed Oscillator Discharge Current

Pin-for-Pin Enhanced Replacements for Micrel

MIC38C/HC4x and GMT38C4x/HC4x

– 1MHz Operation

– No Cross-Conduction Current

– 50ns Current-Sense Delay

The IMP38C4x and IMP38HC4x are fixed frequency, high performance,

current-mode PWM controllers that are pin compatible with bipolar 384x

devices but feature improvements resulting from IMP’s BiCMOS

processing and circuit design. Notable among the improvements are zero

cross-conduction/shoot-through current, reduced start-up and operating

current, lower current-sense delay, higher frequency operation, full

supply voltage swing at the output and a 1% trimmed voltage reference.

ꢀ

IMP38C4x and IMP38HC4x output driver stage has zero cross-conduction

current. A proprietary output state-machine monitors each output

MOSFET and guarantees by design zero cross-conduction current. This is

an industry first for 384x PWM devices.

Under-voltage lockout (UVL) performance has been improved. When

the power supply voltage is below the startup voltage, internal circuitry

puts the output into a low impedance state. The output will sink 20mA

and remain below 1.3V, well below the turn-on threshold voltage of the

external MOSFET. Even when V_DDdrops to zero volts, the out pin will

not rise above approximately 1.3V because the output UVLO circuit is

Block Diagrams

7 (12)

V_DD

(11)

V_D

8 (14)

V_REF

UVLO

Reference

–

4 (7)

1 (1)

2 (3)

6 (10)

OUT

RTCT

COMP

Oscillator

–

COMP

–

2.5V

Ref

(8)

PGND

Connection Notes

3 (5)

(

) Pins Are 14-Pin Devices Only

IMP38C4X, IMP38HC4X (8-Pin Devices)

50% Maximum Duty Cycle:

IMP38C44, IMP38HC44, IMP38C45, IMP38HC45

GND 5 ISNS

AGND (9)

96% Maximum Duty Cycle:

IMP38C42, IMP38HC42, IMP38C43, IMP38HC43

38C/HC_01.eps

408-432-9100/www.impweb.com

12 3 4 5 6 7...10

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与IMP38C42EPD相关器件

型号	品牌	描述	获取价格	数据表
IMP38C42ESA	IMP	BiCMOS Current-Mode PWM Controllers	获取价格
IMP38C42ESA	A1PROS	BiiCMOS Currentt--Mode BiiCMOS Currentt--Mode	获取价格
IMP38C42ESA/T	A1PROS	Switching Controller, Current-mode, 1A, 1000kHz Switching Freq-Max, BICMOS, PDSO8, SOP-8	获取价格
IMP38C42ESD	A1PROS	BiiCMOS Currentt--Mode BiiCMOS Currentt--Mode	获取价格
IMP38C42ESD	IMP	BiCMOS Current-Mode PWM Controllers	获取价格
IMP38C43/D	IMP	BiCMOS Current-Mode PWM Controllers	获取价格

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