MIC2562A Datasheet, PDF (6/9 Pages) Micrel Semiconductor – PCMCIA/CardBus Socket Power Controller

MIC2562A
A
VCC
Enable
0
VCC to 3.3V
5V
3.3V
VCC
Output
t1
t3
0
B
C
VCC OFF
VCC to 5V
t7
t5
t2
t4
FLAG
0
D
VCC OFF
t8
t6
Micrel
Figure 2. MIC2562A V_CC Timing Diagram. V_CC Enable is shown generically: refer to the timing tables (below) for
specific control logic input. At time A, V_CC is programmed to 3.3V. At B, V_CC is disabled. At C, V_CC is programmed
to
5V.
And
at
D,
V
CC
is
disabled.
R
L
=
10Ω.
FLAG
pull-up
resistor
is
10kΩ
to
V
CC3
IN.
MIC2562A-0 Control Logic Table
V_{CC5_EN}
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
V_{CC3_EN}
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
EN1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
EN0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
V_{CC OUT}
V_{PP OUT}
Clamped to Ground
Clamped to Ground
Clamped to Ground
Clamped to Ground
3.3
3.3
3.3
3.3
5
5
5
5
3.3
3.3
3.3
3.3
High Z
High Z
High Z
Clamped to Ground
High Z
3.3
12
Clamped to Ground
High Z
5
12
Clamped to Ground
High Z
3.3
5
Clamped to Ground
July 1999
59
MIC2562A