LTC1923EGN View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LTC1923EGN Datasheet PDF : 28 Pages
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TYPICAL PERFOR A CE CHARACTERISTICS
LTC1923
Oscillator Frequency
vs Temperature
265
CT = 330pF
RT = 10k
245
225
205
185
165
–50 –20 10 40 70 100 130
TEMPERATURE (°C)
1923 G01
VREF vs IREF for Different
Temperatures
2.515
2.510
2.505
2.500
TA = 125°C
2.495
TA = 25°C
2.490
2.485
2.480
2.475
TA = –50°C
2.470
0
5
10
IREF (mA)
15
1923 G04
Error Amplifier Offset Voltage
vs Temperature
1.5
1.0
Oscillator Frequency vs RT
1800
1600
VDD = 2.7V, 5V
TA = 25°C
1400
1200
1000
800
CT = 68pF
CT = 150pF
600
400
200
0
5
CT = 330pF
10
15
RT (kΩ)
20
1923 G02
Output Dead Time vs RT
150
TA = 25°C
125
VDD = 2.7V
100
VDD = 5V
75
50
25
5
7.5
10
12.5
15
RT (kΩ)
1923 G05
Open Thermistor Threshold
vs Temperature
4.60
VSET = 5V
4.59
0.5
4.58
0
4.57
–0.5
–1.0
–50 –20 10 40 70 100 130
TEMPERATURE (°C)
1923 G07
4.56
4.55
–50
–20 10 40 70
TEMPERATURE (°C)
100 130
1923 G08
VREF vs Temperature
2.510
2.505
2.500
2.495
2.490
2.485
–50 –20 10 40 70 100 130
TEMPERATURE (°C)
1923 G03
Output Rise/Fall Time vs RSLEW
250
TA = 25°C
200
150
100
50
0
0
100
200
300
RSLEW (kΩ)
1923 G06
Shorted Thermistor Threshold
vs Temperature
1.00
VSET = 5V
0.99
0.98
0.97
0.96
0.95
–50 –20 10 40 70 100 130
TEMPERATURE (°C)
1923 G09
1923f
5
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