rohm referencedesigns
refled004reference design / application evaluation kit | rohm co., ltd.-凯发k8一触即发
4ch white led driver built-in current driver boost dc-dc converter for automotive
the refled004 is a reference design of bd83a14efv-m leddriver ic dedicated for automotive backlight application. it is including set of evaluation reports, design resources so that users can refer to board design as well as various test report provided in the design. bd83a14efv-m is a white led driver for lcd backlight. it has 4ch current drivers for led drive, making it ideal for high brightness led drive. led pin maximum voltage is 50 v, making it suitable for driving large lcd panels. the dimming is controlled by the pwm signal and can be set up to 20,000: 1@100 hz. it also supports analog dimming, and can accommodate even higher brightness ranges by combining with pwm dimming. the design require led board attached to refled004-evk-001 board.
- automotive backlight reference design
- supporting bd83a14efv-m in boost operation
- thermal characteristics tested
- pcb design files are available
design resources
- refled004-evk-001
specifications
| board number | input voltage | nb of outputs | output voltage | topology | size | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| refled004-evk-001 | 7v to 18v | 4ch | 120ma /ch | boost | 60mm x 90mm |
distribution inventory
| board number | distributor | quantity available |
|---|---|---|
| refled004-evk-001 | - | 联系k8凯发 |
key components
| board number | part number | product category | datasheet | status | spice | ltspice® ? | thermal model | symbol & footprint | 3d step | samacsys ecad library | calc tool | rohm solution simulator |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| refled004-evk-001 | bd83a14efv-m | led drivers | recommended | - | ||||||||
| refled004-evk-001 | rb088lam-60tf | schottky barrier diodes | recommended | - | ||||||||
| refled004-evk-001 | ltr10lezpfl | current detection resistors | recommended | - | ||||||||
| refled004-evk-001 | rq3g270bjfra | automotive mosfets | recommended | - | ||||||||
| refled004-evk-001 | rq3l120bkfra | automotive mosfets | recommended | - |