Datasheet Linear Technology LT8500 — Даташит

LT8500
48-Channel LED PWM Generator
with 12-Bit Resolution and 50MHz
Cascadable Serial Interface
Features n n n n n n Description 3V to 5.5V Input Voltage
48 Independent PWM Outputs
TTL/CMOS Logic 50MHz Serial Data Interface
12-Bit (4096 Steps) PWM Width Resolution
6-Bit (64 Steps) PWM Correction
(В±50% of Programmed PWM Width)
Up to 6.1kHz PWM Frequency (PWMCK = 25MHz)
Phase-Shift Option Reduces Switching Noise
Directly Controls Three LT3595A 16-Channel
LED Drivers
Diagnostic Information: Sync Error/Open LED Flags
56-Pin (6mm Г— 6mm Г— 0.78mm) TLA QFN Package Applications Large Screen Display LED Backlighting Mono-, Multi-, Full-Color LED Displays
n LED Billboards and Signboards
n Motor Control
n Industrial Control
n Automated Test Equipment
n Robotics The LTВ®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) В±50% correction register. All controls …