Chipone ICN2037 PWM Drive Download
1. Description
ICN2037 is a driver IC specially designed for LED displays, using 16 channels of constant current sink output. ICN2037 integrates “Noise Free TM” technology, which has excellent anti-interference characteristics, so that the constant current and low gray effects are not affected by the PCB board.
Different external resistors can be used to adjust the output stage current and accurately control the LED brightness. At the same time, through precise current control technology, the inter-chip error can be lower than ±2.5%, and the inter-channel error can be lower than ±3.0%.
ICN2037 integrates double buffer registers. While displaying 16-bit data in the register, it can also continue to store 16-bit serial data. Compared with general-purpose constant current source chips, the refresh rate can be increased by more than 50%.
2. Characteristic
- 16 channels of constant current sink output
- Output current range:
3～45mA@VDD=5V
3～30mA@VDD=3.3V
- Current accuracy
Between channels: ±1.8 (typ.) ±3.0% (max.)
Chip-to-chip: ±1.5% (typ.) ±2.5% (max.)
- Fast output current response (minimum): 60ns@VDD=5V
- I/O Schmitt trigger input
- Maximum data transmission frequency: 30MHz
- Chip operating voltage: VDD=3.3～6V
- Working temperature range: -40～85℃
- Has the function of improving lamp bead damage
- With blanking function
- Excellent anti-interference ability and low grayscale effect
- Improve the caterpillar phenomenon caused by damaged lamp beads
- Integrated double cache, the refresh rate is more than 50% higher than that of general-purpose constant current chips
