TCK321G Datasheet, PDF (4/13 Pages) Toshiba Semiconductor – 36 V, Dual Inputs – Single Output Power Multiplexer IC with Over Voltage Protection

Operation Logic Table
VSEL
Low
VINA Q1
VINB Q2
FLAG Q3
Reverse current block
VSEL
High
VINA Q1
VINB Q2
FLAG Q3
Reverse current block
CNT Low
OFF
OFF
OFF
Q1 Active / Q2 Active
Auto selection mode
Supplied VINA;
Q1 and Q3 ON, Q2 OFF
Supplied VINB;
Q2 ON, Q1 and Q3 OFF
Supplied VINA and VINB;
Q1 and Q3 ON, Q2 OFF
TCK321G, TCK322G
CNT High
OFF
ON
ON (When VINA or VINB is out of
regular voltage )
Q1 Active / Q2 Inactive
ON
OFF
ON (When VINA or VINB is out of
regular voltage )
Q1 Inactive / Q2 Active
4
2015-10-20