Two-Cell Li-Ion Battery Protection IC with High Accuracy Overcurrent Detection

Tokyo, Japan, May 10^th, 2023 – Nisshinbo Micro Devices Inc. has launched the R5460N5 series Li-Ion battery protection IC, intended for applications requiring high-precision overcurrent and short-circuit detection, such as portable gadgets, tablets, digital cameras, toys, cleaners, and battery packs.

The R5460N5 is an exceptional protection ICs designed for a two-cell Li-ion/polymer battery. It is equipped with standard features such as overcharge/over-discharge voltage and charge/discharge overcurrent detection, which makes the application highly reliable. With a wide overcurrent detection range, the protection IC can handle any challenging overcurrent event with ease.

Thanks to its low standby current, the device can operate for an extended period of time. The FET-sense current detection guarantees high accuracy in over-current and short-circuit detection, making it an indispensable tool for any battery-powered device. The device also provides an option to select 0 V battery charging.

The R5460N5 series is available in a regular SOT-23-6 package and therefore convenient to use on small circuit boards or can be integrated into a laminated battery pack.

Specifications R5460N5:

Supply Current Normal Mode:

Typ.4.0 μA / Max.8.0 μA (0 V battery charging: Permission)

Typ.4.5 μA / Max.9.0 μA (0 V battery charging: Inhibition)

Supply Current Standby Mode:

Max.0.1 μA (Over-discharge release: Latch type)

Typ.2.0 μA / Max.3.5 μA (Over-discharge release: Auto Release type)

Detector Selectable Range and Accuracy

Overcharge detection voltage (V_DET1x): 4.1 V to 4.5 V, ±20 mV

Over-discharge detection voltage (V_DET2x): 2.0 V to 3.0 V, ±2.0%

Discharge overcurrent detection voltage (V_DET3): 0.05 V to 0.2 V, ±12 mV

Charge overcurrent detection voltage (V_DET4): −0.4 V to −0.1 V, ±22 mV

Short-circuit detection voltage (V_SHORT): 0.3 V to 0.5 V, ±0.1 V

0 V Battery Charging selectable: Permission / Inhibition,

0 V charge inhibition voltage: 0.75 V, ±0.35 V

Overcharge Release Type: Auto Release

Over-discharge Release Type selectable: Auto Release / Latch

Discharge / Charge overcurrent detection: Auto Release

Package R5460N5: SOT-23-6

Datasheet: R5460N5

For more information, please visit https://www.nisshinbo-microdevices.co.jp/en/