Battery Monitoring IC S-82F9 Series

Product Overview Standard Circuit Example: S-82F9A Series Standard Circuit Example: S-82F9B Series HTMSOP-8 (FP008-A)

5 LEDs(S-82F9) | 4 LEDs(S-82D9) | 3 LEDs(S-8229A)

This IC is a battery monitoring IC developed using CMOS technology. Compared with conventional CMOS voltage detectors, this IC is ideal for the applications that require high-withstand voltage due to its maximum operation voltage as high as 24 V.
This IC is capable of confirming the voltage in stages since it detects five voltage values.
The S-82F9A Series has an EN pin, allowing for reduction of current consumption by using an external signal to turn off this IC.
The S-82F9B Series has a SENSE pin, and the SENSE pin and external components enable battery monitoring equal to or higher than the rated voltage of the IC.

Features

Detection voltage accuracy

±1.0%

Hysteresis characteristics

V_HYS1(S) to V_HYS5(S) = 0 mV, 50 mV, 300 mV, 400 mV, 500 mV

Current consumption

During operation: I_DD1 = 10 μA max.

During power-off: I_DD2 = 0.1 μA max.

Operation voltage range

V_DD = 3.6 V to 24 V

Detection voltage

V_DET1(S) to V_DET5(S) = 7.5 V to 21.5 V (0.1 V step)

Output form

Nch open-drain output

Output logic^*1

Full charge all on, Individual step voltage on

SENSE pin power-off voltage

V_SENSE < 0.3 V (S-82F9B Series)

Voltage detection pin

S-82F9A Series: VDD pin

S-82F9B Series: SENSE pin

Operation temperature range

Ta = -40°C to +85°C

Lead-free (Sn 100%), halogen-free

*1. Full charge all on:
The multiple output pins become V_SS output depending on the input voltage.
When the input voltage is equal to or higher than each of the five detection voltage values, V_OUT1 = V_OUT2 = V_OUT3 = V_OUT4 = V_OUT5 = V_SS.
Individual step voltage on:
According to the input voltage, only one output pin is a V_SS output.
Set the detection voltage to V_DET1 > V_DET2 > V_DET3 > V_DET4 > V_DET5 and V_DETn > V_DETn+1 + V_HYSn+1.
V_OUT1 = V_SS and V_OUT2 = V_OUT3 = V_OUT4 = V_OUT5 = High-Z when the input voltage is equal to or higher than detection voltage 1 (V_DET1).

Application

• Rechargeable lithium-ion battery pack