MD1422N Shindengen Electric Manufacturing Co.,Ltd, MD1422N Datasheet

MD1422N

Manufacturer Part Number

MD1422N

Description

Manufacturer

Shindengen Electric Manufacturing Co.,Ltd

Datasheet

1.MD1422N.pdf (2 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

BOSTOCK HK LIMITED

Part Number:

MD1422N

Manufacturer:

SHINDENGEN

Quantity:

1 000

Company:

BOSTOCK HK LIMITED

Part Number:

MD1422N

Manufacturer:

SHINDENGEN

Quantity:

1 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

MD1422N

Manufacturer:

SHINDENGEN/新电元

Quantity:

20 000

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U097−2

Step Down DC - DC Converter Power IC

MD1422N

Feature

Block Diagram

Standard Connection Diagram

GND

8∼40V

R/C

INPUT

*Please consult with us when it is desired to make

＋

output adjustable in a range over 5.3V.

ON/OFF

Control

amp-

Vref

Input Voltage range 8V to 40V

Maximum Output Current 3A

Built_in MOSFETs for main switch and synchronous rectification

Adjustable output from 2.5V to 12V with external resistors

High Efficiency typ. 95% ( at : Vin = 8V, Vout = 5V, Iout = 1A )

Bandgap Reference

18∼21

Error Amp

Vref=5.0V±5％

START =7.2V

STOP =6.7V

2.45V

UVLO

Vcc

−

＋

MD1422N

ampOUT

4,26

TSD

11∼14

Vref=6.5V

Vboot

Boot

f＝250kHz

PWM Comp

OSC

＋

−

100゜ C

150゜ C

2.5∼12V

OUTPUT

＋

GND

adjustable

Output

High/Low

MOS OFF

CLM Vth=

0.1∼0.2V

S/S

Pin Assignment ( SSOP32 )

＋

−

(See the marking specification for the indication on the device)

Vref=V

Dead Taim

HighSide

Control

P.GND

OCL

OCL−

OCL＋

Remote On/Off

Vboot

GND

OUT

N/C

R/C

Vcc

N/C

S/S

OUT

Vref=6.5V

+5.8V

−

LowSide

Fixed Frequency 250kHz PWM Control

Over Current Protection

Under Voltage Lockout

Thermal Shut Down

Remote On / Off

OCL

＋

※ N/C : 7,10,15,17,22,24,29,31

HighSide

LowSide

GND

Driver

4,26

Synchronous

Rectification

18∼21

amp−

N/C

ampOUT

N/C

Vref

VTS

GND

N/C

11∼14

P.GND

OUT

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MD1422N Summary of contents

Page 1

... Bandgap Reference Vref=5.0V±5％ Error Amp − ＋ 2.45V 32 amp- ampOUT Standard Connection Diagram 8 INPUT 8∼40V 18∼21 6 MD1422N ＋ 4,26 ON GND *Please consult with us when it is desired to make output adjustable in a range over 5.3V. U097−2 Output adjustable Vboot 8 Boot Vref=V Vref=6 ...

Page 2

... Vcc＝8 to 40V 4.75 fosc Vcc＝24V 212.5 Vth OCL Vcc＝24V 0.162 ＿ Vcc＝24V − Vcc＝8 to 40V Vamp T TSD − ＿ 26 MD1422N Units ℃ ℃ ℃ ℃ ℃ Units ℃ TYP MAX Units MIN 42 − ...

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