Datasheet > NCV1034

NCV1034

更新时间： 2022-02-26 13:57:20

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
24页	259K
描述
100V Synchronous PWM Buck Controller

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NCV1034 数据手册

NCV1034

100V Synchronous PWM

Buck Controller

Description

The NCV1034 is a high voltage PWM controller designed for high

performance synchronous Buck DC/DC applications with input voltages

up to 100 V. The NCV1034 drives a pair of external N−MOSFETs. The

switching frequency is programmable from 25 kHz up to 500 kHz

allowing the flexibility to tune for efficiency and size. A synchronization

feature allows the switching frequency to be set by an external source or

output a synchronization signal to multiple NCV1034 controllers. The

output voltage can be precisely regulated using the internally trimmed

1.25 V reference voltage for low voltage applications. Protection features

include user programmable undervoltage lockout and hiccup current limit.

www.onsemi.com

MARKING

DIAGRAM

SOIC−16

D SUFFIX

CASE 751B

NCV1034D

AWLYWWG

= Assembly Location

= Wafer Lot

= Year

Features

= Work Week

= Pb−Free Package

• High Voltage Operating up to 100 V

• Programmable Switching Frequency up to 500 kHz

• 2 A Output Drive Capability

PIN CONNECTIONS

• Precision Reference Voltage (1.25 V)

• Programmable Soft−Start with Prebiased Load Capability

• Programmable Overcurrent and Undervoltage Protection

OCset

UVLO

• Hiccup Current Limit Using MOSFET R

• External Frequency Synchronization

Sensing

Comp

SS/SD

SYNC

PGND

LDRV

DRVCC

GND

OCIN

VCC

DS(on)

• NCV Prefix for Automotive and Other Applications Requiring

Unique Site and Control Change Requirements; AEC−Q100

Qualified and PPAP Capable

HDRV

• These Devices are Pb−Free and are RoHS Compliant

Applications

(Top View)

• 48 V Non−Isolated DC−DC Converter

• Embedded Telecom Systems

• Networking and Computing Voltage Regulator

• Distributed Point of Load Power Architectures

• General High Voltage DC−DC Converters

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 23 of this data sheet.

: 48 V

: 12 V

C1A

C1B

110k

2u2

1N4148

2u2

GND

100n

100n 100n

DRVVCC VB

VCC

SYNC

HDRV

NTD3055

R10

10k

GND GND

GND

OUT

5 V @ 5 A, 200 kHz

10k

OCIN

LDRV

PGND

ꢀ

C9B C9C

47 47

SS/SD

UVLO

1k2

ꢀ

NTD24N06

16k9

OCSET

GND

1n8

COMP

220n

3k9

11k

IC1

NCP1034

20k

12n

4k7

5k6

330p

GND GND GND GND GND

GND

Figure 1. Typical Application Circuit

Publication Order Number:

April, 2017 − Rev. 0

NCV1034/D

12 3 4 5 6 7...24

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