Datasheet > NCV8851DBR2G

NCV8851DBR2G

更新时间： 2024-10-26 05:52:03

品牌	Logo	应用领域
安森美 - ONSEMI		控制器
页数	文件大小	规格书
18页	239K
描述
Automotive Grade Synchronous Buck Controller

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NCV8851DBR2G 数据手册

NCV8851

Automotive Grade

Synchronous Buck

Controller

The NCV8851 is an adjustable output, synchronous buck controller,

which drives dual N−channel MOSFETs, ideal for high power

applications. Average current mode control is employed for very fast

transient response and tight regulation over wide input voltage and

output load ranges. The IC incorporates an internal fixed 6.0 V

low−dropout linear regulator (LDO), which supplies charge to the

switch mode power supply’s (SMPS) bottom gate driver, limiting the

power lost to excess gate drive. The IC is designed for operation over a

wide input voltage range (4.5 V to 20 V) and is capable of 10 to 1

voltage conversion at 500 kHz.

http://onsemi.com

TSSOP−20

SUFFIX DB

CASE 948E

Additional controller features include undervoltage lockout,

internal soft start, low quiescent current sleep mode, programmable

frequency, SYNC function, average current limiting, cycle−by−cycle

overcurrent protection and thermal shutdown.

MARKING DIAGRAM

Features

NCV

8851

ALYWG

• Average Current Mode Control

• 0.8 V 2% Reference Voltage

• Input Voltage Range of 4.5 V to 20 V

• 6.0 V Low−dropout Linear Regulator (LDO)

• Input UVLO (Undervoltage Lockout)

• Internal Soft−start

NCV8851 = Specific Device Code

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb−Free Package

• 1.0 mA Maximum Quiescent Current in Sleep Mode

• Adaptive Non−overlap Circuitry

• 150 ns Minimum High−side Gate Off−time

• Programmable Fixed Frequency – 170 kHz to 500 kHz

• External Clock Synchronization up to 600 kHz

• Average Current Limiting (ACL)

(Note: Microdot may be in either location)

ORDERING INFORMATION

†

Device

Package

Shipping

75 Units/Rail

• Cycle−by−Cycle Overcurrent Protection (OCP)

• Thermal Shutdown (TSD)

NCV8851DBG

TSSOP−20

(Pb−Free)

Applications

NCV8851DBR2G TSSOP−20 2500/Tape & Reel

(Pb−Free)

• Automotive Systems Requiring High Current

• Pre−regulated Supply for Low−voltage SMPSs and LDOs

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specification

Brochure, BRD8011/D.

Publication Order Number:

April, 2010 − Rev. 2

NCV8851/D

12 3 4 5 6 7...18

中文翻译

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与NCV8851DBR2G相关器件

型号	品牌	获取价格	描述	数据表
NCV8851FDBR2G	ONSEMI	获取价格	IC SWITCHING CONTROLLER, Switching Regulator or Controller
NCV8852	ONSEMI	获取价格	Automotive Grade Non-Synchronous Buck Controller
NCV8852_15	ONSEMI	获取价格	Automotive Grade Non-Synchronous Buck Controller
NCV8852_16	ONSEMI	获取价格	Automotive Grade Non-Synchronous Buck Controller
NCV885201D1R2G	ONSEMI	获取价格	Automotive Grade Non-Synchronous Buck Controller
NCV8852DR2G	ONSEMI	获取价格	P-Channel, 100% Duty Cycle, Non-Synchronous Buck Controller, Automotive Grade, SOIC-8 Narr
NCV8853	ONSEMI	获取价格	Automotive Grade Non-Synchronous Buck Controller
NCV8853_16	ONSEMI	获取价格	Automotive Grade Non-Synchronous Buck Controller
NCV885300D1R2G	ONSEMI	获取价格	Automotive Grade Non-Synchronous Buck Controller
NCV885301D1R2G	ONSEMI	获取价格	Automotive Grade Non-Synchronous Buck Controller

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