Datasheet > BD9845FV_11

BD9845FV_11

更新时间： 2024-11-13 08:51:55

品牌	Logo	应用领域
罗姆 - ROHM		稳压器开关控制器
页数	文件大小	规格书
16页	533K
描述
Single/Dual-output High-frequency Step-down Switching Regulator(Controller type)

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数据手册

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BD9845FV_11 数据手册

Large Current External FET Controller Type Switching Regulators

Single/Dual-output

High-frequency Step-down

Switching Regulator(Controller type)

No.11028EDT08

BD9845FV

●Overview

BD9845FV is an IC containing a circuit of switching regulator controller by pulse width modulation system.

This circuit can be used for step-down DC/DC converter operation.

In addition, the package is designed compact, and is optimum for compact power supply for many kinds of equipment.

●Feature

1) High voltage resistance input (Vcc=35V)

2) FET driver circuit is contained (step-down circuit 1 output).

3) Error amplifier reference voltage (1.0V1%) and REG output circuit (2.5V) are contained.

4) Overcurrent detection circuit is contained.

5) Soft start and pause period can be adjusted.

6) Three modes of standby, master, and slave can be switched. (iccs = 0 uA typ in standby mode.)

7) ON/OFF control is enabled independently for each channel. (DT terminal)

●Application

LCD, PDP, PC, AV, Printer, DVD, Projector TV, Fax, Copy machine, Measuring instrument, etc.

●Absolute maximum rating

Item

Symbol

Rating

Unit

Supply voltage

Vcc

500^＊1

Permissible loss

OUT terminal voltage resistance

C5V terminal voltage resistance

Operation temperature range

Storage temperature range

Joint temperature

OUT

C5V

Topr

Tstg

Tjmax

Vcc-7V to Vcc

-40 to +85

-55 to +150

150

°C

*1 When glass epoxy board 70.0 mm  70.0 mm  1.6 mm is installed onboard. Reduced by 4.0 mW/C above Ta=25C.

●Operating condition (Ta=25C)

Item

Symbol

Range

Unit

Supply voltage

Vcc

OUT

3.6 to 35

C5V – Vcc

47 to 3000

100 to 1500

0 to Vcc

Output terminal voltage

Timing capacity

CCT

kHz

Oscillation frequency

STB input voltage

SEL input voltage

Fosc

VSTB

VSELTB

0 to Vcc

www.rohm.com

2011.08 - Rev.D

1/15

12 3 4 5 6 7...16

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