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R5492 Series
1-Cell Li-ion Battery Protection IC

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Product Specifications

The R5492 is a high voltage tolerance protection IC for overcharge, overdischarge, and overcurrent of a rechargeable one-cell Lithium-ion (Li+) / Lithium-polymer battery. The R5492 supports the voltage release type at overcharging / overdischarging.
Each output delay time of overcharge, overdischarge, and overcurrent is fixed internally. But, the delay shortening is able to shorten the detection and the release delay times at overcharging / overdischarging. Especially, the overcharge detection delay time can be shorten to aprrox.1/90.

FEATURES

Operating Input Voltage Range 1.5 V to 5.0 V (Absolute Maximum Rating: 30 V)
Supply Current Typ. 4.0 µA
Standby Current Max. 0.5 µA
Over-charge Detector Threshold Range 4.00 V to 4.50 V (in 5 mV steps)
Voltage Accuracy ± 20 mV (Ta = 25°C)
± 25 mV (-5°C < Ta < 55°C)
Over-discharge Detector Threshold Range 2.00 V to 3.00 V (in 0.1 V steps)
Voltage Accuracy ±2.5%
Excess
discharge-current
Detector Threshold Range 0.05 V to 0.20 V (in 5 mV steps)
Voltage Accuracy ± 15 mV
Excess
charge-current
Detector Threshold Range -0.05 V to -0.20 V (in 5 mV steps)
Voltage Accuracy ±15 mV
Short Current Protection Detector Threshold 0.8 V
Function 0V Battery Charge
Package SOT-23-6

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APPLICATION INFORMATION

PIN DESCRIPTION

SOT-23-6

SOT-23-62.9 mm × 2.8 mm
1 DOUT
2 V-
3 COUT
4 NC
5 VDD
6 VSS

R5492 Series for Consumer

APPLICATIONS

  • Li+ / Li Polymer protection of overcharge, overdischarge, and overcurrent for Battery pack
  • High precision protection for smart-phones and any other gadgets using on board Li+ / Li Polymer battery

SELECTION GUIDE

Product Name   Package Quantity per Reel
R5492NxxxKL-TR Consumter SOT-23-6 3,000
  • xxx … Specify the combination of each detection voltage (VDET) and each release voltage (VREL).
    Refer to Product Code Table for details.
    Overcharge Detection Voltage (VDET1) : 4.00 V to 4.50 V (in 5 mV steps)
    Overdischarge Detection Voltage (VDET2): 2.00 V to 3.00 V (in 0.1 V steps)
    Discharge Overcurrent Detection Voltage (VDET3): 0.05 V to 0.20 V (in 5 mV steps)
    Charge Overcurrent Detection Voltage (VDET4): -0.05 V to -0.20 V (in 5 mV steps)
    Overcharge Release Voltage (VREL1)
    Overdischarge Release Voltage (VREL2)

DOCUMENT/CONTACT

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Package*1 Reliability*2
SOT-23-6 R5492N

*1: The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and land pattern (foot pattern).
*2: Reliability file includes a reliability test report and a reflow profile.

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