Datasheet > BD18351EFV-M

BD18351EFV-M

更新时间： 2023-09-03 20:40:18

品牌	Logo	应用领域
罗姆 - ROHM		驱动控制器微控制器驱动器
页数	文件大小	规格书
48页	2759K
描述
BD18351EFV-M是内置1ch升压控制器的LED驱动器。本LSI通过对LED电流设定进行相对于输出电压的高边检测实现升压/降压，适合车头灯/DRL、车尾灯、转向灯的LED驱动。内置了CRTIMER，在需要进行DRL等的PWM调光的应用中，无需微控制器即可进行PWM调光，可实现组件的低成本化和小型化。

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中文翻译

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BD18351EFV-M 数据手册

Datasheet

LED driver IC series for Automotive lamps

LED Driver with Built-in PWM Signal

Generation Circuit

BD18351EFV-M

General Description

Key Specifications

Input Voltage Range:

Output Voltage Range:

BD18351EFV-M is an LED driver with built-in 1ch boost

controller. It is an optimal IC for LED drive for head lamp /

DRL, tail lamp and turn lamp capable of realizing boost

and buck boost with high-side detection of LED current

setting against output voltage.

4.5 V to 65 V

6.0 V to 65 V

Absolute Maximum Input / Output Voltage:

Minimum PWM Dimming Pulse Width:

70 V

50 µs

Further, cost saving and downsizing of the set can be

realized, since it contains CRTIMER which enables PWM

dimming without microcomputer for applications requiring

PWM dimming of DRL, etc.

Features



AEC-Q100 Qualified ^{(Note 1)}

Package

HTSSOP-B24

W(Typ) × D(Typ) × H(Max)

7.80 mm × 7.60 mm × 1.00 mm

Built-in Switching DC / DC Controller.

LED Current Setting High Side Detection Method

LED Current Precision: ±3.0% (–40 °C to 125 °C)

PWM Signal Generation Circuit with Built-in

CRTIMER (External PWM Dimming Control is

possible.)



Built-in Spread Spectrum Function

Built-in LED Open Detection Function

Built-in LED Anode to Ground Short Function

(Note 1) Grade1

Applications

Head lamp, DRL, front position lamp, tail lamp, turn lamp

HTSSOP-B24

Typical Application Circuit

External

power

VOUT

FAIL

VREG50

VCC

ODT

VREG25

DCD

VOUT

DRL

SWDRV

BD18351EFV-M

COMP

VREG50

VREG

IMP

IMN

DISC

PWMOUT

TDISC

GND

DGND

Figure 1. Typical Application Circuit

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

www.rohm.com

TSZ02201-0T3T0C700130-1-2

02.Sep.2019 Rev.004

1/45

TSZ22111 • 14 • 001

12 3 4 5 6 7...48

中文翻译

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与BD18351EFV-M相关器件

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