The ams AS1117 LED Driver datasheet details specifications, pinout, electrical characteristics, and typical applications for a 64‑LED driver.
The AS1117 is a compact LED driver that can control 64 individual LEDs or 8 digits of 7‑segment displays. It is programmed via a 3.4 MHz I²C‑compatible two‑wire interface, allowing individual segment control, error detection, and both analog and digital brightness control. Only a single external resistor (RSET) is required to set the segment current.
Key specifications include a supply voltage range of 2.7 V to 5.5 V, a typical shutdown current of 200 nA, and an operating supply current of 0.35–0.6 mA. The device is supplied in a TQFN(4×4)‑24 package and supports up to four cascaded devices. Typical applications cover mobile user‑interface displays, set‑top boxes, and various consumer electronics.
| Supply Voltage Range | 2.7 V to 5.5 V |
|---|---|
| Shutdown Current (typical) | 200 nA |
| Package | TQFN(4×4)-24 |
| Maximum Input Voltage Range | -0.3 V to 7 V |
| DIG0‑DIG7 Sink Current (max) | 500 mA |
The AS1117 operates from 2.7 V up to 5.5 V supply voltage.
It can drive up to 64 single LEDs or 8 digits of 7‑segment displays.
The typical shutdown current is about 200 nA.