BD83A24MUF-M
車用LED驅動器，內建4ch電流驅動器，升壓用MOS，升壓DC/DC轉換器
BD83A24MUF-M
車用LED驅動器，內建4ch電流驅動器，升壓用MOS，升壓DC/DC轉換器
此IC是LCD背光用白光LED驅動器。內建升壓用MOS和4ch電流驅動器，非常適合高亮度LED驅動。LED接腳的最大電壓為50V，適合驅動中型LCD面板。調光由PWM訊號控制，最高可設定為20,000:1@100Hz。也支援類比調光，透過與PWM調光結合，可實現更高亮度範圍。DC/DC轉換器可控制用於升壓應用，輸入工作電壓範圍為4.5V至48.0V。
Product Detail
功能安全:
規格:
Topology
Boost
Vin(Min.)[V]
4.5
Vin(Max.)[V]
48
Total Output Current (Max.)[mA]
480
Per Channel Drive(Max.)[mA]
120
Number of Outputs
4
Vout(Max.)[V]
50
Switching Frequency (Max.)[MHz]
2.42
Integrated Switching FET
Yes
Dimming
DC / PWM
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
125
Package Size [mm]
4.0x4.0 (t=1.0)
Common Standard
AEC-Q100 (Automotive Grade)
功能:
- AEC-Q100 合格 (Grade 1)
- 功能安全支援車用產品
- 內建LED驅動器用4ch電流驅動器
- 內建升壓用MOS
- 電流模式升壓DC/DC轉換器
- 負載開關 (M1) 控制引腳
- 透過脈衝輸入的DC調光功能
- PWM調光 (20,000:1@100Hz, 100Hz 至 25kHz)
- 展頻功能
- DC/DC振盪頻率外部同步功能
- LSI保護功能 (UVLO, OVP, TSD, OCP)
- LED陽極/陰極短路保護功能
- LED開路/短路保護功能
參考設計 / 應用評估套件
-
- Evaluation Board - REFLED005-EVK-002
This Evaluation Board was developed for ROHM's LED Driver BD83A24MUF-M. BD83A24MUF-M is a white LED driver for LCD backlight. It has 4ch Current Driver for LED Drive, and it is suitable for high illumination LED drive. It is suitable for middle size LCD panel drive because LED pin maximum voltage is 50V. The dimming is controlled by the PWM signal and can be set up to 20,000:1@100Hz. It also supports analog dimming and can accommodate even higher brightness ranges by combining with PWM dimming. DC/DC converters can be controlled for boost applications, and the input operating voltage range is 4.5V to 48V.
