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

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

BD8374HFP-M 数据手册

Daattaasshheeeett

BD8374HFP-M BD8374EFJ-M

3. PWM Dimming Operation

PWM Dimming is performed if CRT terminal is OPEN.

Dimming cycle and Duty width can be set through external resistance value and capacity.

CR timer function in IC is activated if CRT terminal turned OPEN. In order to perform PWM light control of LED current,

triangular waveform is generated at CRT terminal. Output is controlled so that LED current is turned OFF while CRT

voltage is ramping up, and LED current is turned ON while CRT voltage is ramping down.

Ramp up/down time of CRT voltage can be set by values of external components (CCRT, RDISC).

I_OUT

VIN_F

VIN

IOUT

VREF

VIN-0.180V

(Typ)

ICRT=35µA(Typ)

OSC

CRT

DISC

C_CRT

R_CRT

GND

50Ω(Typ)

CRT Voltage Ramp-up

CRT Voltage Ramp-down

CRT Terminal

Waveform

I_OUTWaveform

Figure 12. PWM Fimming Operation

(1) CRT Ramp up Time T1

CRT ramp up time can be obtained from the following equations:

∆V^CRTC

T1

^CRT[s]

ICRT_SO

where:

ICRT_SO is the CRT Terminal Charge Current 35μA (Typ)

www.rohm.com

TSZ02201-0G1G0C700310-1-2

2013.08.06 Rev.001

8/26

TSZ22111・15・001

1...5 6 789 10 11...29

下载PDF

与BD8374HFP-M相关器件

型号	品牌	描述	获取价格	数据表
BD8374HFP-M_16	ROHM	1ch Source Driver for Automotive	获取价格
BD8374HFP-MTR	ROHM	50V 500mA 1ch Source Driver for Automotive	获取价格
BD8379EFV-M	ROHM	12ch LED Driver IC with 3-line Serial Interface	获取价格
BD8379EFVM-E2	ROHM	12ch LED Driver IC with 3-line Serial Interface	获取价格
BD8379FV-M	ROHM	12ch LED Driver IC with 3-line Serial Interface	获取价格
BD8379FVM-E2	ROHM	12ch LED Driver IC with 3-line Serial Interface	获取价格