The HY8436 is an active matrix RGB LED driver with independent channel control, designed for driving up to 36 LEDs (12 RGB Pixels). The device supports 4 low-resistance high-side switches and 9 low-side current sinks that can deliver up to 12mA of continuous current per channel. The driver has 16-bit gray scale PWM, 4-bit global brightness control and 8-bit local brightness control of each low-side LED current sink.
Each current sink can be individually controlled through the two-wire control interface, but also has the capability to be controlled with a single value over the global brightness control register.
Full protections are included, including build-in LED open/short detection for each channel and device thermal shutdown.
l Supply Voltage
- VDD 3.3V to 5V
l Matrix Structure
- Current Channel (Column) : 9
- MUX (Row) : 4
l High-Precision Sink Current Capability
- Max. 12mA per channel
- Global Brightness Control (GBC):
- 4-Bit control
- Local Brightness Control (LBC):
- 8-Bit control
- Individual Zone CH Control
- Imax = (GBC+0.25) * LBC * 3.13uA
l CH Grayscale: 16-Bit
l Mixed hybrid CH Control
l Calibration
- Built-in 1k-Byte NVM OTP
l Anti-ghosting
- Upside ghosting
- Downside ghosting
l Auto Power Down Mode
l Two-wire Customized Control Interface
- 1MHz speed
l Protection: Single-fault
- LED Open
- LED Short
- Thermal shutdown
- UVLO
l Flip Chip Solder Bump Package
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ORDERING INFORMATION
| Part Number | Package |
|---|---|
HY8436 | Flip Chip – 18-Solder Bump |
TYPICAL APPLICATION DIAGRAM
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