MB3887_06 Datasheet, PDF (22/34 Pages) Fujitsu Component Limited. – DC/DC Converter IC for Charging Li-ion battery

MB3887
■ PROCESSING WITHOUT USING OF THE CS TERMINAL
When soft-start function is not used, leave the CS terminal (pin 22) open.
CS ²²
“Open”
Connection when soft-start time is not specified
■ NOTE ON AN EXTERNAL REVERSE-CURRENT PREVENTIVE DIODE
• Insert a reverse-current preventive diode at one of the three locations marked * to prevent reverse current from
the battery.
• When selecting the reverse current prevention diode, be sure to consider the reverse voltage (VR) and reverse
current (IR) of the diode.
VCC(O)
21
OUT
20
VH
19
VIN
∗
AB
∗ ^I1
RS ^BATT
∗
Battery
22