Datasheet > BD8374HFP-M

BD8374HFP-M

更新时间： 2022-02-26 11:29:18

品牌	Logo	应用领域
罗姆 - ROHM		/
页数	文件大小	规格书
29页	1223K
描述
50V 500mA 1ch Source Driver for Automotive

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中文翻译

获取价格

数据手册

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BD8374HFP-M 数据手册

Daattaasshheeeett

BD8374HFP-M BD8374EFJ-M

Functional Description

(Unless otherwise specified, Ta=25°C, VIN=13V, IOUT=6V and RVIN_F=0.47Ω. Numbers are "Typical" values.)

1. Output Current Setting

LED Current I_OUTcan be set as below depending on values of current setting resistance RVIN_F.

(V^IN VIN_F)

I^OUT



^VIN_F_REF[A]

RVIN_F

where:

VIN_F_REF is 0.18V (Typ.)

Figure 11. Output Current Setting

2. Table of Operations

PWM dimming mode switches to linear control depending on CRT terminal voltage.

When CRT terminal voltage surpasses VCRT_DIS2(4.0V(Typ)), Dimming mode turns to Linear Control,

and discharge resistance of DISC terminal changes from RD1(50Ω(Typ)) to RD2(5kΩ(Typ)).

LED open/short-circuit protection is activated depending on IOUT terminal voltage status, and output current is turned OFF.

Output current is also turned OFF when Low signal is input to PBUS terminal.

IOUT Terminal

Output Current

Operation Mode

Linear Control

PWM dimming

CRT Terminal

4.0V(Typ)≤VCRT

OPEN

Voltage

(VIOUT)

PBUS Terminal

(I_OUT

)

50mA～500mA

Hi-Z

See Features

Description, 3. PWM

Light Control Operation

LED Open

LED Short

12.95V≤VIOUT

1μA(Max)

Low Output

Low Input

VIOUT≤0.6V

PBUS Control OFF

www.rohm.com

TSZ02201-0G1G0C700310-1-2

2013.08.06 Rev.001

7/26

TSZ22111・15・001

1...4 5 678 9 10...29

中文翻译

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