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Increased Design Freedom 設計自由度を増やすマトリクスSWコントローラ

マトリクス制御に最適な高速応答降圧LEDドライバBD18391EFV-M High-speed response buck LED driver ideal for matrix control (BD18391)

Features

Applications

MCUから任意の点灯パターン制御可能 BD18361EFV-M MCU enables control of virtually any lighting pattern (BD18361)

設計容易なスタンドアローンタイプ BD18362EFV-M Easy-to-use standalone type (BD18362)

車載ランプ Automotive lamps

Sequential Turn System シーケンシャルターンシステム

Buck LED Driver Matrix Switches 降圧LEDドライバ/マトリクスSWコントローラ Easily Achieve a Sequential Turn System with a Dedicated IC 専用ICでシーケンシャルターンシステムを容易に実現

BD18391EFV-M / BD18361EFV-M / BD18362EFV-M

MCU

Pattern control with communication

function

MCU Control Type Standalone Type

BAT BD18361EFV-M

Lighting period set using external components

2種類のMatrix SW Controllerにより設計自由度大 2 types of matrix switching controllers provide increased design flexibility Matrix SW切替え時の高速応答可能 High-speed response during matrix switching

自由な点灯パターンが可能 パターン内蔵で設計容易(順次点灯、全点灯)

LED灯数変更時に即座に LED電圧、電流が安定

LED全OFFからも高速復帰

BUCK LED DRIVERと Matrix SW Controllerを

組み合わせて使用

+BAT

LDO

BOOST

MCU

Buck LED Driver

Matrix SW Controller

BD18391EFV-M

BD18361EFV-M / BD18362EFV-M

Immediately stabilizes the voltage and current when changing the number of LED lamps

Fast response from OFF condition

Combination buck LED driver and matrix SW controller

Customizable lighting pattern Internal pattern simplifies design (sequential lighting, all lighting)

シーケンシャルターンシステム Sequential turn systems

SW

VLED

ILED

SW

VLED

ILED

8-Lamp ↔ 1-lamp switching waveforms

8-lamp ↔ 0-lamp (OFF) switching waveforms

Operation immediately stabilized with no overshoot

50μsec 50μsec

Enables high-speed recovery when turning all LEDs OFF

(within 50μsec)

LED8灯 LED8灯 LED 全OFF

No current overshoot / undershoot

No current overshoot / undershoot

50μsec 50μsec

LED8灯 LED8灯 LED1灯

Multi-lamp high-speed Switching possible

(within 50μsec)

High-Speed Response Buck LED Driver 高速応答降圧LEDドライバ

Matrix SW Controllerにより点灯パターンを制御 Lamp pattern control via matrix SW controller

BD18362EFV-M