Automotive ICs

Automotive, 105°C Operation, Battery Monitoring IC for 3-Serial to 6-Serial Cell Pack S-19192 Series

The S-19192 Series is a monitoring IC for automotive rechargeable batteries, which includes high-accuracy voltage detection circuits and delay circuits. Switching control for 3-serial to 6-serial cell is possible by inputting voltage to the SEL1 pin and the SEL2 pin.
In addition, the S-19192 Series can perform a self-test to confirm overcharge and overdischarge detection operations.

Caution: This product can be used in vehicle equipment and in-vehicle equipment. Before using the product for these purposes, it is imperative to contact our sales representatives.

Features

High-accuracy voltage detection circuit for each cell
Overcharge detection voltage n (n = 1 to 6): 2.500 V to 4.500 V (25 mV step)
Accuracy ±20 mV (Ta = +25°C)
Accuracy ±30 mV (Ta = −5°C to +55°C)
Overcharge release voltage n (n = 1 to 6): 2.300 V to 4.500 V *1
Accuracy ±50 mV
Overdischarge detection voltage n (n = 1 to 6): 1.500 V to 3.000 V (100 mV step)*2, *3
Accuracy ±80 mV
Overdischarge release voltage n (n = 1 to 6): 1.500 V to 3.300 V*4
Accuracy ±100 mV
Self-test results to confirm overcharge and overdischarge detection operations can be output from OUT2 pin.
Delay time shortening during self-test: Available, unavailable
 Each delay time is settable by an internal circuit only (External capacitors are not necessary).
Detection delay time: 32 ms, 64 ms, 128 ms, 256 ms
Release delay time: 2.0 ms, 4.0 ms, 8.0 ms, 16.0 ms
Switching control for 3-serial to 6-serial cell is possible by inputting voltage to the SEL1 pin and the SEL2 pin.
Two detection signal types
Common: OUT1 pin: Overcharge and overdischarge detection signal
Separate: OUT1 pin: Overcharge detection signal, OUT2 pin: Overdischarge detection signal 
Output form
CMOS output, Nch open-drain output
Output logic
Active “H”, active “L”
High-withstand voltage
Absolute maximum rating 28.0 V
Wide operation voltage range
6.0 V to 28.0 V
Wide operation temperature range
Ta = −40°C to +105°C
Low current consumption
During operation: 18 μA max. (Ta = +25°C)
Lead-free (Sn 100%), halogen-free
 AEC-Q100 qualified*5
The following documents are available when customers perform verifications for “Hardware Component Qualification”in order to meet “Functional Safety Requirements”.*5, *6
“Hardware Safety Analysis Report”
“Hardware Integration and Testing Report”
“Qualification Kit”

*1. Overcharge release voltage = Overcharge detection voltage − Overcharge hysteresis voltage (Overcharge hysteresis voltage n (n = 1 to 6) is selectable from 0 V to 400 mV in 50 mV step.)
*2. Set the voltage difference between the overcharge detection voltage and overdischarge detection voltage to 2.5 V or lower.
*3 When the S-19192 Series is used for monitoring a 3-serial-cell battery, set the overdischarge detection voltage n (n = 1 to 6) to 2.0 V or higher.
*4. Overdischarge release voltage = Overdischarge detection voltage + Overdischarge hysteresis voltage (Overdischarge hysteresis voltage n (n = 1 to 6) is selectable from 0 V to 0.7 V in 100 mV step.)
*5. Contact our sales representatives for details.
*6. The Non-Disclosure Agreement is necessary when providing the documents.

Applications

  • Automotive rechargeable battery pack (EV, HEV, PHEV)