LT8500ETJ#PBF

LT8500 is a pulse width modulation (PWM) generator with 48 independent channels. Each channel has an individually adjustable 12bit (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. It features two diagnostic information flags: synchronization error and open LED. The flags are sent, with additional state information, on the serial data interface during status read back. The 50MHz cascadable serial data interface includes buffering and skew-balancing, making the chip suitable for PWM. It is also ideally suited to control three LT3595A LED drivers. It is used in application like large screen display LED backlighting, mono-, multi-, full-colour LED displays, LED billboards and signboards, motor control, industrial control, automated test equipment, robotics etc.

• Input voltage range is 3V to 5.5V
• Upto 6.1KHz PWM frequency (PWMCK = 25MHz)
• Phase-shift option reduces switching noise
• Diagnostic information: sync error/open LED flags
• Input capacitance is 3pF typical
• Input current is 1µA maximum
• Operating temperature is -40°C to 125°C
• Package style is 56-lead plastic TLAQFN

Uwagi

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