Automotive, 125°C Operation, Battery Protection IC for 1-cell Pack S-19161B Series

Product Overview Connection Example SOT-23-6 (MP006-A)

This IC is a protection IC for lithium-ion / lithium polymer rechargeable batteries, which includes high-accuracy voltage detection circuits and delay circuits. It is suitable for protecting 1-cell lithium-ion / lithium polymer rechargeable battery packs from overcharge, overdischarge, and overcurrent.
Use of an external overcurrent detection resistor enables this IC to provide high-accuracy overcurrent protection with less impact from temperature changes.

Features

High-accuracy voltage detection circuit

Overcharge detection voltage
3.500 V to 4.800 V (5 mV step)
: Accuracy ±15 mV

Overcharge release voltage
3.100 V to 4.800 V^*1
: Accuracy ±50 mV

Overdischarge detection voltage
2.000 V to 3.000 V (10 mV step)
: Accuracy ±50 mV

Overdischarge release voltage
2.000 V to 3.400 V^*2
: Accuracy ±75 mV

Discharge overcurrent 1 detection voltage
3 mV to 100 mV (0.5 mV step)
: Accuracy ±1 mV

Discharge overcurrent 2 detection voltage
6 mV to 100 mV (1 mV step)
: Accuracy ±2 mV

Load short-circuiting detection voltage
20 mV to 100 mV (1 mV step)
: Accuracy ±4 mV

Charge overcurrent detection voltage
-100 mV to -3 mV (0.5 mV step)
: Accuracy ±1 mV

Detection delay times are generated only by an internal circuit (external capacitors are unnecessary).

Discharge overcurrent control function

Release condition of discharge overcurrent status: Load disconnection

Release voltage of discharge overcurrent status: Discharge overcurrent release voltage (V_RIOV) = V_DD × 0.8 (typ.)

0 V battery charge

Enabled, inhibited

Power-down function

Available, unavailable

High-withstand voltage

VM pin and CO pin: Absolute maximum rating 28 V

Wide operation temperature range

Ta = -40°C to +125°C

Low current consumption

During operation: 2.0 μA typ., 4.0 μA max. (Ta = +25°C)

During power-down: 50 nA max. (Ta = +25°C)

During overdischarge: 0.5 μA max. (Ta = +25°C)

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

AEC-Q100 in process^*3

*1. Overcharge release voltage = Overcharge detection voltage - Overcharge hysteresis voltage
(Overcharge hysteresis voltage can be selected as 0 V or from a range of 0.1 V to 0.4 V in 50 mV step.)
*2. Overdischarge release voltage = Overdischarge detection voltage + Overdischarge hysteresis voltage
(Overdischarge hysteresis voltage can be selected as 0 V or from a range of 0.1 V to 0.7 V in 100 mV step.)
*3. Contact our sales representatives for details.

Application

• Lithium-ion rechargeable battery pack
• Lithium polymer rechargeable battery pack