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R5434 Series
2-Cell to 5-Cell Li-ion Battery Second Protection IC

Product Specifications

The R5434 is an overcharge protection IC for 2 to 5 serial Li-ion/Li-polymer secondary battery. When an overcharge is detected, after the IC internally fixed delay time, the output of COUT becomes "H". After detecting the overcharge, when the cell voltage becomes lower than the overcharge release voltage, the overcharge state is released. The output type is CMOS.

FEATURES

Supply Voltage -0.3 V to 30 V / VC2-0.3V to VC2+6.5 V (Absolute maximum Rating)
Operating Input Voltage Range 4.0 V to 25.0 V
Supply Current Typ. 3.0 µs
Over-charge Detector Threshold Range 3.6 V to 4.6 V
Over-charge Voltage Accuracy ±25 mV
Over-charge Delay time 1.5 s
Functions 2 to 5 Cells Selectable Protection
Overcharge Delay Time Shortening Function with CTLC pin
Package SON-8

APPLICATION INFORMATION

5-cell Protection Circuit

R1 to R5: 330 Ω, C1 to C5: 0.1 µF

PIN DESCRIPTION

SON-8

SON-82.9 mm × 3.0 mm
1 VC5
2 VC4
3 VC3
4 VC2
5 VDD
6 CTLC
7 COUT
8 VSS

*) The tab is substrate level (GND).


R5434 Series for Consumer

APPLICATIONS

  • Li-ion/Li polymer batteries second protector for over-charge
  • Over-charge second protections for notebook PCs, power tools, and any gadgets using on board Li-ion/Li Polymer battery

PRODUCT LONGEVITY PROGRAM

R5434 operate PRODUCT LONGEVITY PROGRAM (ten-year supply is maintained as of January, 2016).
This program has been introduced to help customers select the most appropriate part for applications that require long life cycles.


SELECTION GUIDE

The overcharge and the delay time are user-selectable options.

Product Name   Package Quantity per Reel
R5434DxxxAA-TR-FE ConsumterPLP SON-8 3,000
  • xxx … Specify the combination of the overcharge detector threshold (VDET1n) and the overcharge release voltage (VREL1n).
    VDET1n*1 : 3.6 V to 4.6 V in 5 mV step
    VREL1n*1 : VDET1n – 0.1 V to VDET1n – 0.4 V in 50 mV step

*1: VDET1n, VREL1n : n =1, 2, 3, 4, 5

DOCUMENT/CONTACT

Package*1 Reliability*2
SON-8 R5434D

*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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