s SELECTION GUIDE
In the R5421Nxxxx Series three of the input threshold for over-charge, over-discharge and excess current detectors can be
designated.
Part Number is designated as follows:
R5421N XXXX-XX ←Part Number
↑↑↑
abc
Code
a
b
c
Description
Serial Number for the R5421N Series designating input threshold for over-charge, over-discharge
and excess current detectors as well as hysteresis range for over-charge detector.
Designation of version symbols
Taping Type: TR (refer to Taping Specification)
s PIN CONFIGURATION
6
5
4
(mark side)
s PIN DESCRIPTION
Pin No.
1
2
3
4
5
6
1
2
3
Symbol
DOUT
V-
COUT
Ct
VDD
VSS
Pin description
Output of over-discharge
detection, CMOS output
Pin for charger negative input
Output of over-charge
detection, CMOS output
Pin for external capacitor
setting output delay of VD1
Power supply
Ground
Rev.1.11
-3-