LTC6943 查看數據表（PDF） - Linear Technology
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LTC6943
Linear Technology
LTC6943 Datasheet PDF : 16 Pages
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LTC6943
TYPICAL PERFOR A CE CHARACTERISTICS (Test Circuits 2 through 4)
Power Supply Current vs
Power Supply Voltage
0.50
COSC = 0pF, TA = –55°C
0.45
COSC = 0pF, TA = 25°C
COSC = 0pF, TA = 125°C
0.40
COSC = 4700pF, TA = –55°C
0.35
COSC = 4700pF, TA = 25°C
COSC = 4700pF, TA = 125°C
0.30
0.25
0.20
0.15
0.10
0.05
0
0 2 4 6 8 10 12 14 16 18
VSUPPLY (V)
6943 TPC01
RON vs VIN
260
RON (PEAK)
240
220 VIN
200
I = 100µA
V+ = 15V
V– = 0V
TA = 25°C
180
160
I = 100µA
140
I = mA
120
100
80
0 2 4 6 8 10 12 14 16 18 20
VIN (V)
LTC1043 • TPC04
Oscillator Frequency, fOSC
vs COSC
1000
TA = 25°C
100
10
VS = 5V
1
VS = 15V
VS = 10V
0.1
0
1000
2000 3000
COSC (pF)
4000 5000
6943 TPC07
RON vs VIN
550
RON (PEAK)
500
450 VIN
I = 100µA
400
V+ = 5V
V– = 0V
TA = 25°C
350
300
I = 100µA
250
I = mA
200
150
100
0
1
2
3
4
5
VIN (V)
LTC1043 • TPC02
RON (Peak) vs Power Supply
Voltage
1000
900
VIN = 1.6V
RON (PEAK)
800
VIN
I = 100µA
700
600
500
VIN ≈ 3.2V
400
300
200 3V ≤ V+ + ≤18V
100 V– = 0V
TA = 25°C
0
02468
VIN ≈ 7V VIN ≈ 11V
VIN ≈ 15.1V
10 12 14 16 18 20
VSUPPLY (V)
LTC1043 • TPC05
Oscillator Frequency, fOSC
vs Supply Voltage
250
TA = 25°C
225
200
175
COSC = 0pF
150
125
100
75
50
COSC = 100pF
25
0
0 2 4 6 8 10 12 14 16 18
VSUPPLY (V)
6943 TPC08
RON vs VIN
280
RON (PEAK)
260
240 VIN
220
I = 100µA
V+ = 10V
V– = 0V
TA = 25°C
200
180
I = 100µA
160
I = mA
140
120
100
0 1 2 3 4 5 6 7 8 9 10
VIN (V)
LTC1043 • TPC03
RON (Peak) vs Power Supply
Voltage and Temperature
1100
1000
RON (PEAK)
900
VIN
I = 100µA
800
700
600
TA = 125°C
500
400
TA = 70°C
300
200 TA = –55°C
100
0 2 4 6 8 10 12 14 16 18 20
VSUPPLY (V)
LTC1043 • TPC06
Normalized Oscillator Frequency,
fOSC vs Supply Voltage
1.5
TA = 25°C
1.3
COSC = 0pF
1.0
COSC = 100pF
0.5
COSC = 10,000pF
0.3
COSC = 1,000pF
0
0 2 4 6 8 10 12 14 16 18
VSUPPLY (V)
6943 TPC09
6943f
3
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