Datasheet > BD18345EFV-M

BD18345EFV-M

更新时间： 2023-09-03 20:34:12

品牌	Logo	应用领域
罗姆 - ROHM		驱动控制器晶体管
页数	文件大小	规格书
40页	2276K
描述
BD18345EFV-M是耐压高达70V的车载LED灯用恒流控制器。仅1枚本IC即可驱动多达10个外置PNP晶体管。另外，内置待机功能，有助于降低配套应用的功耗。内置两种LED电流降额功能、LED开路检测功能、输出接地故障保护功能、过电压静音功能及LED异常状态输入输出功能，可靠性更高。

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BD18345EFV-M 数据手册

Datasheet

Constant Current LED Drivers

Constant Current Controller

for Automotive LED Lamps

BD18345EFV-M

General Description

Key Specifications

BD18345EFV-M is 70 V-withstanding constant current

controller for automotive LED lamps. It is able to drive at

maximum 10 rows of PNP transistors. It can also

contribute to reduction in the consumption power of the

set as it has the built-in standby function. The IC provides

high reliability because it has two Current de-rating

function, LED open detection, short circuit protection,

over voltage mute function and LED failure input/output

function.



Input Voltage Range:

FB Pin Voltage Accuracy:

4.5 V to 19.0 V

650 mV ±3 %

@Ta=25 °C to 125 °C

0 µA (Typ)



Stand-by Current:

LED Current De-rating Accuracy:

DCDIM Pin : ±3 % @V_DCDIM=0.75 V to 2.00 V

THD Pin : ±6 % @V_THD=0.50 V to 0.75 V

Operating Temperature Range: -40 °C to +125 °C



Package

HTSSOP-B20

W (Typ) x D (Typ) x H (Max)

6.50 mm x 6.40 mm x 1.00 mm

Features



AEC-Q100 Qualified^{(Note 1)}

PWM Dimming Function

PWM Signal Output

LED Current DC Dimming

Thermal De-rating Function

LED Open Detection

Short Circuit Protection (SCP)

Over Voltage Mute Function (OVM)

Disable LED Open Detection Function

at Reduced-Voltage



LED Failure Input/Output Functions (PBUS)

HTSSOP-B20

(Note 1) Grade1

Applications



Automotive LED Exterior Lamp

(Rear Lamp, Turn Lamp, DRL/Position Lamp, Fog

Lamp etc.)



Automotive LED Interior Lamp

(Air Conditioner Lamp, Interior Lamp, Cluster Light

etc.)

Typical Application Circuit

RFB1

RFB2

VIN

PWM_in

RLIM

ZD1

CVIN1

CCRT

CVIN2

BASE

CRT

DC_in

RCRT

SCP

CLED

DISC

BD18345EFV-M

RDCIN

VREG

CVREG

ROPM

RDCDIM1

DCDIM

OPM

PWMOUT

PBUS

RDCDIM2

RTHD

GND

THD

NTC

〇Product structure : Silicon integrated circuit 〇This product has no designed protection against radioactive rays

www.rohm.com

TSZ02201-0T3T0B300040-1-2

21.Sep.2018 Rev.001

1/37

TSZ22111 • 14 • 001

12 3 4 5 6 7...40

中文翻译

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与BD18345EFV-M相关器件

型号	品牌	获取价格	描述	数据表
BD18347AEFV-M	ROHM	获取价格	BD18347AEFV-M是一款40V耐压的车载用LED恒流驱动器。是内置Energy S
BD18347EFV-M	ROHM	获取价格	BD18347EFV-M是4通道线性LED驱动器，可通过1个引脚控制多个输出的热分散。不仅
BD18351EFV-M	ROHM	获取价格	BD18351EFV-M是内置1ch升压控制器的LED驱动器。本LSI通过对LED电流设定
BD18351EFV-ME2	ROHM	获取价格	LED Driver,
BD18353EFV-M	ROHM	获取价格	BD18353EFV-M/MUF-M是1ch LED控制器。内置高边电流检测放大器。通过内
BD18353MUF-M	ROHM	获取价格	BD18353EFV-M/MUF-M是1ch LED控制器。内置高边电流检测放大器。通过内
BD18362EFV-M	ROHM	获取价格	BD18362EFV-M是内置8ch的FET开关的矩阵LED控制器。可通过开关内置FET开
BD18364EFV-M (新产品)	ROHM	获取价格	BD18364EFV-M是一款内置8通道旁路开关的升降压型LED驱动器。采用本IC可实现时
BD18377EFV-M	ROHM	获取价格	12 Channel Constant Current LED Driver IC
BD18377EFV-ME2	ROHM	获取价格	12 Channel Constant Current LED Driver IC

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