LT1683 데이터 시트보기 (PDF) - Linear Technology
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LT1683 Datasheet PDF : 26 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
LT1683
VC Pin Threshold and Clamp
Voltage vs Temperature
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
1683 G06
SHDN Pin Hysteresis Current vs
Temperature
27
25
23
21
19
17
15
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
1683 G09
Slope Compensation
110
VC PIN = 0.9V
100
TA = 25°C
90
80
70
60
50
0
10
20
30
40
50
DUTY CYCLE (%)
1683 G12
CS Pin Trip and CS Fault Voltage
vs Temperature
240
220
FAULT
200
180
160
140
120
TRIP
100
80
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
1683 G07
SHDN Pin On and Off Thresholds
vs Temperature
1.50
1.45
ON
1.40
1.35
1.30
OFF
1.25
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
1683 G08
VIN Current vs Temperature
24 WITH NO EXTERNAL MOSFETs
22
20
18
VIN = 12 RCSL, RVSL = 5.7k
16
VIN = 20 RCSL, RVSL = 17k
14
VIN = 12 RCSL, RVSL = 17k
12
10
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
1683 G10
CS Pin to VC Pin Transfer Function
1.6
TA = 25°C
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0 20 40 60 80 100 120
CS PIN VOLTAGE (mV)
1683 G11
Gate Drive A/B High Voltage
vs Temperature
10.7
6.5
10.6
6.4
10.5
GCL = 12V
6.3
10.4
6.2
10.3
VIN = 12V
6.1
10.2
NO LOAD
6.0
10.1
5.9
10.0
GCL = 6V
5.8
9.90
5.7
9.80
5.6
9.70
5.5
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
1683 G13
Gate Drive A/B Low Voltage
vs Temperature
0.50
0.45
VIN = 12V
NO LOAD
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
1683 G14
1683fd
5
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