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R5443 Series
1-Cell Li-ion Battery Protection IC

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Product Specifications

The R5443 is a one-cell Li-ion / polymer battery protection IC provides overcharge, over-discharge, and discharge / charge overcurrent detections. One of the features of this device is a high-accuracy detection at overcharge and overcurrent. The supply current after over-discharge detection can be reduced to a minimum by stopping the internal circuits. The small WLCSP package is available.

FEATURES

Operating Input Voltage Range 1.5 V to 5.0 V (Absolute Maximum Rating: 12 V)
Supply Current Typ. 2.5 µA
Standby Current Max. 0.04 µA
Over-charge Detector Threshold Range 4.2 V to 4.6 V (0.005 V step)
Voltage Accuracy ±10 mV
Output Delay Time 1.0 s
Over-discharge Detector Threshold Range 2.0 V to 3.4 V (0.005 V step)
Voltage Accuracy ±2.0%
Output Delay Time 16 ms/ 32 ms/ 128 ms
Discharge Overcurrent Detector Threshold Range 0.015 V to 0.150 V
(0.015 V to 0.050 V; 0.001 V step)
(0.050 V to 0.150 V; 0.005 V step)
Voltage Accuracy ±3 mV (0.015 V to 0.030 V)
±10% (0.030 V to 0.050 V)
±5 mV (0.050 V to 0.150 V)
Output Delay Time 8 ms/ 16 ms/ 32 ms/ 128 ms/ 512 ms
Charge Overcurrent Detector Threshold Range -0.150 V to -0.015 V
(-0.030 V to -0.015 V; 0.001 V step)
(-0.150 V to -0.030 V; 0.005 V step)
Voltage Accuracy ±4 mV (-0.020 V to -0.015 V)
±20% (-0.040 V to -0.020 V)
±8 mV (-0.150 V to -0.040 V)
Output Delay Time 8 ms
Short Current Protection Detector Threshold Range 0.040 V to 0.300 V (0.005 V step)
Voltage Accuracy ±5 mV
Output Delay Time 280 µs
0-V Battery Charge Option Available / Unacceptable
Discharge Overcurrent Release Option Auto Release Type / Latch Type
Package WLCSP-6-P7

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APPLICATION INFORMATION

PIN DESCRIPTION

WLCSP-6-P7

WLCSP-6-P71.25 mm × 0.84 mm
A1 V-
B1 VDD
C1 VSS
A2 COUT
B2 RSENS
C2 DOUT

R5443 Series for Consumer

APPLICATIONS

  • Li+/Li Polymer Protector of Over-charge, Over-discharge, Excess-current for Battery Pack
  • High Precision Protectors for Smartphones and Electronic Gadgets using On-board Li+/Li Polymer Battery

SELECTION GUIDE

Product Name   Package Quantity per Reel
R5443Zxxx$#-E2-F Consumter WLCSP-6-P7 5,000
  • xxx … Specify a code combined the set output voltages. Refer to the datasheet for details.
  • $ … Specify a delay time version from the table below.
Ver. tVDET2
(ms)
tVDET3
(ms)
tVDET4
(ms)
A 128 512 8
B 32 512 -
C 32 16 8
D 16 16 8
J 128 128 8
P 128 16 8
  • # … Specify a version combined following functions from the table below.
Ver. Charge/ Discharge Overcurrent Release 0-V Charge VDET4
A Auto Release Available Enable
B Auto Release Unavilable Disable
C Latch Available Enable
D Latch Unavilable Disable
G Auto Release Unavilable Enable
H Latch Unavilable Enable

DOCUMENT/CONTACT

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Package*1 Reliability*2
WLCSP-6-P7 R5443Z

*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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