48-Channel LED PWM Generator with 12-Bit Resolution and 50MHz Serial Interface

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48-Channel LED PWM Generator with 12-Bit Resolution and 50MHz Cascadable Serial Interface

The LT®8500 is a pulse width modulation (PWM) generator
with 48 independent channels. Each channel has an
individually adjustable 12-bit (4096-step) PWM register
and a 6-bit (64-step) ±50% correction register. All controls
are programmable via a simple serial data interface. Three
banks of 16-channels each can be configured such that
they operate 120° out-of-phase with each other.

n 3V to 5.5V Input Voltage
n 48 Independent PWM Outputs
n TTL/CMOS Logic 50MHz Serial Data Interface
n 12-Bit (4096 Steps) PWM Width Resolution
n 6-Bit (64 Steps) PWM Correction
(±50% of Programmed PWM Width)
n Up to 6.1kHz PWM Frequency (PWMCK = 25MHz)
n Phase-Shift Option Reduces Switching Noise
n Directly Controls Three LT3595A 16-Channel
LED Drivers
n Diagnostic Information: Sync Error/Open LED Flags
n 56-Pin (5mm × 9mm × 0.75mm) QFN Package

n Large Screen Display LED Backlighting
n Mono-, Multi-, Full-Color LED Displays
n LED Billboards and Signboards
n Motor Control
n Industrial Control
n Automated Test Equipment
n Robotics

LT8500 - 48-Channel LED PWM Generator with 12-Bit Resolution and 50MHz - Linear Technology