LTC2954CTS8-1-PBF データシートの表示（PDF） - Linear Technology
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LTC2954CTS8-1-PBF Datasheet PDF : 18 Pages
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LTC2954
TYPICAL PERFORMANCE CHARACTERISTICS
Internal Default PB Power-Down
Debounce Time (tPD,MIN) vs VIN
70
60
TA = 25°C
50
40
PB Power-Down Debounce Time
(tPD,MIN + tPDT) vs PDT External
Capacitance
10000
TA = 25°C
VIN = 3.3V
1000
30
100
20
10
0
0 5 10 15 20 25 30
VIN (V)
2954 G07
10
1
10
100
1000
PDT EXTERNAL CAPACITANCE (nF)
2954 G08
PDT Pull-Up Current
vs Temperature
–3.4
–3.2
VIN = 26.4V
–3.0
VIN = 2.7V
–2.8
–2.6
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
2954 G09
PB Current vs PB Voltage
–250
–200
TA = 25°C
VIN = 3.3V
–150
–100
–50
PB Voltage vs External PB
Resistance to Ground
300
VIN = 3.3V
250
200
TA = 100°C
150
TA = 25°C
100
TA = –45°C
50
0
–10 –5
0 5 10 15 20 25 30
PB VOLTAGE (V)
2954 G10
0
0
5
10
15
20
EXTERNAL PB RESISTANCE TO GROUND (kΩ)
2954 G11
EN/EN VOL vs Current Load
600
TA = 25°C
VIN = 3.3V
500
400
300
200
100
0
0.0 0.5 1.0 1.5 2.0 2.5
EN/EN CURRENT LOAD (mA)
2954 G12
EN (LTC2954-1) Voltage vs VIN
1.0
TA = 25°C
100k PULL-UP FROM EN TO VIN
0.8
0.6
0.4
0.2
0
0
1
2
3
4
VIN (V)
2954 G13
EN (LTC2954-2) Voltage vs VIN
4
TA = 25°C
100k PULL-UP
FROM
EN
TO
VIN
3
2
1
0
0
1
2
3
4
VIN (V)
2954 G14
2954fb
5
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