LTC1314 データシートの表示（PDF） - Linear Technology
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LTC1314 Datasheet PDF : 12 Pages
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LTC1314/LTC1315
TYPICAL PERFORMANCE CHARACTERISTICS
IDD vs VDD
80
VPPIN = 12V
70 VCCIN = 5V
T = 25°C
60
50
VPPOUT = VPPIN
40
VPPOUT = VCCIN
30
20
10
VPPOUT = 0V
OR HI-Z
0
0
1
2
3
4
5
6
VDD (V)
1314/15 G04
IPPIN vs VPPIN
20
18
VDD = VCCIN = 5V
T = 25°C
16
VPPOUT = VPPIN
14
12
10
8
6
VPPOUT = VCCIN
4
2
VPPOUT = 0V
OR HI-Z
0
0 2 4 6 8 10 12 14
VPPIN (V)
1314/15 G05
PIN FUNCTIONS
LTC1314
VPPIN (Pin 1): 12V Power Input.
NC (Pin 2): Not Connected.
SHDN (Pin 3): Shutdown Output. When the output is high,
the external 12V regulator can be shut down to conserve
power consumption.
EN0, EN1 (Pins 4, 5): Logic inputs that control the voltage
output on VPPOUT. The input thresholds are compatible
with TTL/CMOS levels. Refer to Truth Table.
VCC0 (Pin 6): Logic input that controls the state of the
MOSFET gate driver DRV3. ESD protection device limits
input excursions to 0.6V below ground.
VCC1 (Pin 7): Logic input that controls the state of the
MOSFET gate driver DRV5. ESD protection device limits
input excursions to 0.6V below ground.
DRV5, DRV3 (Pins 8, 9): Gate driver outputs that control
the external MOSFETs that switch the VCC pin of card slot
to Hi-Z, 3.3V, or 5V.
VDD (Pin 10): Positive Supply, 4.5V ≤ VDD ≤ 5.5V. This pin
supplies the power to the control logic and the charge
pumps and must be continuously powered.
GND (Pin 11): Ground Connection.
VPPOUT (Pin 12): Switched output that provides 0V, 3.3V,
5V, 12V, or Hi-Z to the VPP pin of the card slot. Refer to
Truth Table.
NC (Pin 13): Not Connected.
VCCIN (Pin 14): 5V or 3.3V Power Input.
4
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