RT9480 Datasheet, PDF (13/16 Pages) Richtek Technology Corporation – Easy to Use Power Bank Solution

BUTTON Press Timing
Define Button (Short/Long) Press Timing
Short press = min (0.1s)
Blank = min (0.1s)
SOC LED Flash and Running Timing
SOC LED Flash
0.5s
0.5s
SOC LED Running
0.5s
0.5s ^0.5s
RT9480
LED Indicator Function
About LED indicator, it will follow below table to show
SOC. The LED current is 0.75mA.
●●●●
Low→High
● : LED ON, ○ : LED OFF, ● : LED FLASH
Battery Voltage
Operation of Charging
 3700mV
●○○○
●●○○
●●● ○
●●● ●
 3700mV
 3940mV
●●○○
●●● ○
●●● ●
 3940mV
 4100mV
 4100mV
 4200mV
4200mV
Battery Voltage
 4200mV
 3880mV
 3880mV
 3720mV
 3720mV
 3500mV
 3500mV
 3200mV
 3200mV
 2800mV
●●● ○
●●● ●
●●●●
●●●●
Operation of Discharging
●●●●
●●●○
●●○○
●○○○
●○○○
Copyright ©2014 Richtek Technology Corporation. All rights reserved.
DS9480-04 December 2014
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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