LTC2995 Datasheet, PDF (5/20 Pages) Linear Technology – Temperature Sensor and Dual Voltage Monitor

LTC2995
TYPICAL PERFORMANCE CHARACTERISTICS T_A = 25°C, V_CC = 3.3V unless otherwise noted.
Temperature Error with LTC2995 at
Same Temperature as Remote Diode
3 _{TINTERNAL = TREMOTE}
2
1
0
–1
–2
–3
–50 –25 0
25 50 75 100 125 150
T_A (°C)
2995 G01
Temperature Error vs Supply
Voltage
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
2
3
4
5
6
V_CC (V)
2995 G04
V_PTAT Noise vs Averaging Time
0.20
0.15
0.10
0.05
Remote Temperature Error
vs Ambient Temperature
3 _{TREMOTE = 25°C}
2
1
0
–1
–2
–3
–50 –25 0
25 50 75 100 125 150
T_A (°C)
2995 G02
Remote Temperature Error
vs Series Resistance
6
4
2
0
–2
–4
–6
0 200 400 600 800 1000 1200
SERIES RESISTANCE (Ω)
2995 G05
UVLO vs Temperature
V_CC Rising, Falling
2.2
V_CC RISING
V_CC FALLING
2.0
1.8
Internal Temperature Error
vs Ambient Temperature
3
2
1
0
–1
–2
–3
–50 –25 0
25 50 75 100 125 150
T_A (°C)
2995 G03
Remote Temperature Error
vs C_DECOUPLE (Between D⁺ and D^–)
6
4
2
0
–2
–4
–6
0
2
4
6
8
10
DECOUPLE CAPACITOR (nF)
2995 G06
Buffered Reference Voltage
vs Temperature
1.810
1.805
1.800
1.795
0
0.01
0.1
1
10
100 1000
AVERAGING TIME (ms)
2995 G07
1.6
–50 –25 0
25 50 75
T_A (°C)
100 125 150
2995 G08
1.790
–50 –25 0
25 50 75
T_A (°C)
100 125 150
2995 G09
2995f
5