BD94130MUF-M
24-channel Constant Current Drivers and 8-line Switch Controllers Embedded Backlight LED Driver
BD94130MUF-M
24-channel Constant Current Drivers and 8-line Switch Controllers Embedded Backlight LED Driver
BD94130MUF-M is embedded 24-channel constant current drivers with 12bit PWM dimming and max 8-line switch controllers. This device can set LED constant current value by setting external ISET resistor. Communication with μ-controller via SPI is feasible.
Product Detail
Functional Safety:
Specifications:
Topology
Constant Current
Vin(Min.)[V]
3
Vin(Max.)[V]
5.5
Per Channel Drive(Max.)[mA]
80
Number of Outputs
24
Vout(Max.)[V]
20
Data Input
SPI
Dimming
DC / PWM
PWM Dimming Steps
4096
DC Dimming Steps
64
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
125
Package Size [mm]
8.0x8.0 (t=1.00)
Common Standard
AEC-Q100 (Automotive Grade)
Features:
- AEC-Q100 Qualified (Grade 1)
- Functional Safety Supportive Automotive Products
- Integrated 24-channel LED Constant Current Drivers
- Integrated 4/6/8-line Switch Controllers
- SPI Interface (Cascade Connection Feasible)
- 12bit PWM Dimming
- LED Constant Current Setting by ISET Resistor
- Phase Shift Function
- 6bit Dot Correct (50% to 100%)
- LED Open Detection and LED Short Detection
- Adjacent LEDCH Short Detection
- PGATE Short Protection
- VINSW Over Voltage Protection
- Slew Rate Control for PMOS Gate Driver
- Abnormality Output FAILB Pin
Supporting Information
Overview
The BD94130xxx-M series of matrix LED drivers combines an 8-line switch controller with 24-channel current driver - allowing control (dimming) of up to 192 zones mini-LED for backlighting with a single IC. On top of that, the mini-LEDs in each zone can be independently adjusted by using a local dimming function - contributing to larger contrast ratio, lower power consumption displays.
For example, with current mainstream 10-inch class infotainment displays that consist of approx. 600 zones, the BD94130xxx-M series enable operation with just one-fourth of the number of LED drivers compared to existing (48-zone) products - decreasing LED driver mounting area by approx. 84%. And this advantage will only increase as screens become larger and the number of zones rises inside next-generation cockpits.
Application Examples
ROHM’s BD94130xxx-M series are equipped with local dimming functionality to support a variety of high-contrast automotive displays.
• Electronic mirrors (side/rear view)
• Car infotainment
• Instrument clusters
• Head-up displays (HUDs)
Reference Design / Application Evaluation Kit
-
- Reference Design - REF66005
- LED back light (Local dimming)
Direct LED backlighting allows for higher brightness and improved contrast through area dimming or individual dimming, making it ideal for high-definition displays. This is a demo device that drives LEDs in a 24 x 32 matrix using 4pcs of LED driver BD94130MUF-C with 8 lines switches and 24Ch LED driver.
Collaboration board with Shockley
Shanghai Shockley was established in October 2005, is a geared to the needs of China's electronics industry, based on the semiconductor chip, the application of technical services solutions for your business and products agent registered.Shockley has experienced technical research and development and marketing team, can be based on semiconductor chips, according to customer needs, to provide technical services and complete solutions, to help customers quickly and efficiently to complete product design.
