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R5640 Series
2-Cell to 5-Cell Li-ion Battery Second Protection IC

  • PLP
  • RoHS

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Product Specifications

The R5640 is an overcharge protection IC for 2- to 5- serial cell Li-ion / Li-polymer rechargeable battery pack, with built-in high-accuracy voltage detection circuits and delay circuits. Controlling the supply voltage to the CTLC pin can control the COUT pin output. The shutdown detection can reduce the supply current to the minimum.

  • Reducing the supply current to 0.2 µA or less after shutdown detection can achieve the longer battery life.
  • Cascading the R5640 of 2 or more is adaptable to the battery pack of 6 or more cells and results in a reduction of external parts.
  • Be adaptable to 30 V input voltage by using high-voltage process.

FEATURES

Operating Input Voltage Range 4.0 V to 25 V or VC2 +5 V
Supply Current Typ. 2.5 µA
Shutdown Current Max. 0.2 µA
Overcharge (VDET1) Detector Threshold Range 3.60 V to 4.60 V (0.005 V Steps)
Detector Threshold Accuracy ± 0.016 V (Ta = 25°C)
± 0.025 V (0°C ≤ Ta ≤ 60°C)
Detection Delay Time 2 / 4 / 6 / 10 / 16 sec
Release Voltage VDET1 to VDET1 -0.4 V (0.05 V Steps)
Min. 4.05 V when shutdown detection voltage is 3.7 V.
Release Voltage Condition Voltage Release Type
Shutdown Detection Voltage Typ. 2.5 V ± 0.3 V / 3.7 V ± 0.3 V
CTLC Pin Detection Delay Time 2 msec
Functions Selectable Timer Reset Delay Function
Available Cascade Connection
Output Type Pch. Open-drain of Internal Regulator
Package MSOP-8

APPLICATION INFORMATION

10-cell Protection Circuit at Cascading

PIN DESCRIPTION

MSOP-8

MSOP-83.0 mm × 4.9 mm
1 VDD
2 VC2
3 VC3
4 VC4
5 VC5
6 VSS
7 CTLC
8 COUT

R5640 Series for Consumer

APPLICATIONS

  • Li-Ion or Li-Polymer Battery Protection

PRODUCT LONGEVITY PROGRAM

R5640 operate PRODUCT LONGEVITY PROGRAM.
This program has been introduced to help customers select the most appropriate part for applications that require long life cycles.


SELECTION GUIDE

Overcharge detection / release voltages and delay time are user-selectable options.

Product Name   Package Quantity per Reel
R5640Gxxx$#-E2-FE ConsumterPLP MSOP-8 3,000
  • xxx … Specify the combination of the overcharge detection voltage (VDET1n), the overcharge release voltage (VREL1n), and the shutdown detection voltage (VSHTn).
    VDET1n*1 : 3.6 V to 4.6 V in 5 mV step
    VREL1n*1 : VDET1n –0V to VDET1n –0.4V in 50 mV step*2
    VSHTn*1 : 2.5 V / 3.7 V
  • $ … Specify the overcharge detection delay time (tVDET1).
    A : 2 s
    B : 4 s
    C : 6 s
    D : 10 s
    E : 16 s
  • # … Specify the timer reset delay function.
    A : Disable
    B : Enable

*1: VDET1n, VREL1n, VSHTn: n = 1, 2, 3, 4, 5
*2: Min. 4.05 V when shutdown detection voltage (VSHTn) is 3.7 V.

DOCUMENT/CONTACT

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Package*1 Marking Reliability*2
MSOP-8 R5640G R5640G

*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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