The MAX1576 uses two external resistors to set the main and flash full-scale (100%) LED currents. Four control pins are used for LED dimming by either serial control or 2-bit logic per group. ENM1 and ENM2 set the main LEDs to 10%, 30%, or 100% of full scale. ENF1 and ENF2 set the flash LEDs to 20%, 40%, or 100% of full scale. In addition, connect either pair of control pins together for single-wire, serial pulse dimming control.
The MAX1576 is available in a 24-pin thin QFN, 4mm x 4mm package (0.8mm max height).
|Part Number||Battery Input||Regulation Topology||Max. No. of LEDs||LED Channels||LED Configuration||ILED per Channel|
|PWM Dimming Freq.|
|LED String Volt.|
|MAX1576||1-Cell Li+||Charge Pump||8||8||Parallel||0.4||5|
|See All LED Drivers (79)|
| Pricing Notes: |
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
|Device||Fab Process||Technology||Sample size||Rejects||FIT at 25°C||FIT at 55°C|
|App Note||3871||White-LED Driver Includes Overtemperature Protection|
|App Note||3441||Circuit Board Layout Guidelines for White LED Charge Pumps|
|Reference Schematic||1804||Driving LEDs in Battery-Operated Applications: Controlling Brightness Power Efficiently|