
- Stock: In Stock
- Brand: Unbranded
- Model: 1-CHIP0963
- SKU: 1-CHIP0963
Realtime Stock
Controller IC Chip - RT8562BGQW RT8562B 8562 RT8562 ( DW=** ) QFN 20 Chip for laptop- Integrated portable calculator chip(SKU.1-CHIP0963)
The RT8562B is a 40V 8-CH LED driver capable of delivering 30mA to each channel with 10 LEDs (3.6V per diode), total of 80 LEDs with one driver. The RT8562B is a current mode boost converter opearated at 1MHz, wide VIN range covers from 4.5V to 24V and the on-chip current switch is rated at 2.5A. The PWM output voltage loop regulates the LED pins to 0.6V with an auto-adjustment circuit allowing voltage mismatches between LED strings. The RT8562B automatically detects and disconnects any unconnected and/or broken strings during operation from PWM loop to prevent VOUT from over voltage. The 1.5% matched LED currents on all channels are simply programmed with a resistor or a current sink. A very high contrast ratio true digital PWM dimming can be achieved by driving PWM pin with a PWM signal. Other protecting features include programmable output over voltage protection, LED curren limit, PWM switch current limit and thermal shutdown. The RT8562B is packaged with a tiny footprint package of WQFN-24L 4x4 packages
High Voltage : VIN up to 24V, VOUT up to 40V, Driving up to 80 x 3.6V LEDs (10 each channel) z Channel Current Programmabe 10mA to 30mA and Matched to 1.5% z Current Mode PWM 1MHz Boost Converter z Easy and High Accuracy Digital Dimming by PWM Signal z Programmable Soft-Start z Automatic Detecting Unconnected and/or Broken Channel z Programmable Over Voltage Protection z Disconnects LED in Shutdown z VIN Under Voltage Lockout z Over Temperature Protection z Current Limiting Protection z Small 24-Lead WQFN Package z RoHS Compliant and Halogen Free
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