製品概要
機能と利点
- Negative 1x/1.5x Charge Pump
- Adaptive Current Regulators
- Independent Voltage Supply for Each LED
- 24mA to 0.1mA Serial-Pulse Dimming (MAX8847Y/MAX8848Y)
- 24mA to 0mA PWM Dimming (MAX8847Z/MAX8848Z)
- 2% (max) LED Current Accuracy, 1% (typ) Matching
- Low 120µA Quiescent Current
- Low 0.4µA Shutdown Current
- Inrush Current Limit
- Temperature Derating Function
- 16-Pin, 3mm x 3mm Thin QFN Package
- Tiny External Components
- Fully Assembled and Tested
製品概要
The MAX8848Z evaluation kit (EV kit) is a fully assembled and tested PCB that demonstrates the MAX8848Z high-performance negative charge pump. The MAX8848Z integrates an inverting charge pump and 7 current regulators capable of 24mA each to drive up to 7 white LEDs (WLEDs). The EV kit operates from a 2.7V to 5.5V input supply range and includes two pulse generators that are used for testing the MAX8847Y/MAX8848Y single-wire, serial-pulse dimming feature. The EV kit can also evaluate the MAX8847Y, MAX8847Z, and MAX8848Y. To evaluate the MAX8847Y, MAX8847Z, or MAX8848Y, request a free sample when ordering the EV kit.
Applications
- Cellular Phones
- PDAs, Digital Cameras, and Camcorders
- White LED Backlighting