HY8436

HY8436

Application

LED indicator

DESCRIPTION

     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.

FEATURES

Supply Voltage

 VDD 3.3V to 5V

Matrix Structure

 Current Channel (Column) : 9

 MUX (Row) : 4

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

CH Grayscale: 16-Bit

Mixed hybrid CH Control

Calibration

 Built-in 1k-Byte NVM OTP

Anti-ghosting

 Upside ghosting

 Downside ghosting

Auto Power Down Mode

Two-wire Customized Control Interface

 1MHz speed

Protection: Single-fault

 LED Open

 LED Short

 Thermal shutdown

 UVLO

Flip Chip Solder Bump Package

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ORDERING INFORMATION

Part NumberPackage

HY8436

Flip Chip – 18-Solder Bump

TYPICAL APPLICATION DIAGRAM
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