LTC2997H View Datasheet(PDF) - Linear Technology
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LTC2997H Datasheet PDF : 18 Pages
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LTC2997
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C, VCC = 3.3V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VCC
UVLO
Supply Voltage
Supply Undervoltage Lockout Threshold
ICC
Average Supply Current
Temperature Monitoring
VCC Falling
l 2.5
3.3
5.5
V
l 1.7
1.9
2.1
V
l 120
170
250
μA
VREF
Reference Voltage
LTC2997
LTC2997C
LTC2997I
LTC2997H
1.797 1.8 1.803
V
l 1.793 1.8 1.804
V
l 1.790 1.8 1.807
V
l 1.787 1.8 1.808
V
VREF Load Regulation Error
Remote Sense Current
ILOAD = ±200μA; VCC = 3.3V
l
–8
±1.5
mV
–192
μA
TUPDATE
KT
TINT
Diode Select Threshold
Temperature Update Interval
VPTAT Slope
VPTAT Load Regulation
Internal Temperature Error
(Note 3)
η = 1.004 (Note 4)
ILOAD = ±200μA; VCC = 3.3V (Note 7)
LTC2997C, LTC2997I
LTC2997H
l VCC – 600 VCC – 300 VCC – 100
3.5
5
4
±1.5
l
±0.5 ±1.5
l
±2
mV
ms
mV/°K
mV
°C
°C
TRMT
Remote Temperature Error, η = 1.004
0°C to 100°C (Notes 5, 7)
–40°C to 0°C (Notes 5, 7)
100°C to 125°C (Notes 5, 7)
±0.25 ±1
°C
±0.25 ±1.5
°C
±1.5
°C
TVCC
Temperature Error vs Supply
TRS
Series Resistance Cancellation Error
Temperature Noise
2.5V ≤ VCC ≤ 5.5V
RSERIES = 100Ω www.DataSheet.net/
(Note 6)
l
± 0 .1
±1
°C/V
l
±0.25 ±1
°C
0.25
0.015
°C RMS
°C/√Hz
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All currents into pins are positive; all voltages are referenced to
GND unless otherwise noted.
Note 3: If voltage on pin D+ exceeds the diode select threshold the
LTC2997 uses the internal diode sensor.
Note 4: η = ideality factor of remote diode
Note 5: Remote diode temperature.
Note 6: Guaranteed by design and not subject to test.
Note 7: Guaranteed by design and test correlation.
2997fa
3
Datasheet pdf - http://www.DataSheet4U.co.kr/
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