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LT2940CMS Datasheet(PDF) 3 Page - Linear Technology

Part # LT2940CMS
Description  Power and Current Monitor
PDF  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT2940CMS Datasheet(HTML) 3 Page - Linear Technology

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LT2940
3
2940f
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Supply
VCC
Supply Voltage Operating Range
l
680
V
ICC
Supply Current
IPMON = +200μA, IIMON = +200μA
(Note 2)
l
2
3.5
5
mA
VCC(UVLC)
Supply Undervoltage Latch Clear
VCC Falling
l
2.3
2.5
2.7
V
ΔVCC(HYST)
Supply Undervoltage Hysteresis
VCC Rising
l
20
75
100
mV
Voltage Sense
VVSEN(OR)
Voltage Sense Pin Operating Range
VCC ≤ 12V
l
–0.1
VCC – 3
V
12V < VCC < 30V
l
–0.1
9
V
V+ Pin and V– Pin
VCC ≥ 30V
l
–0.1
18
V
VV
Voltage Sense Differential Input Voltage Range
(Note 5)
VCC < 11V
l
±(VCC – 3)
V
VV = VV+ – VV–
VCC ≥ 11V
l
±8
V
VV(CL)
Voltage Sense Differential Clipping Limit
(Note 5)
VCC ≥ 12V
l
±9
V
IVSEN
Voltage Sense Input Bias Current
V+ Pin and V– Pin
l
–300
–100
100
nA
ΔIVSEN
Voltage Sense Input Offset Current
ΔIVSEN = IV+ – IV–
VV+ = VV–
l
±50
±150
nA
Current Sense
VISEN(OR)
Current Sense Pin Operating Range
I+ Pin and I– Pin
l
480
V
VI
Current Sense Differential Input Voltage
Range (Note 6)
VI = VI+ – VI–
l
±200
mV
VI(CL)
Current Sense Differential Clipping Limit
(Note 6)
l
±225
mV
IISEN
Current Sense Input Bias Current
I+ Pin and I– Pin
l
75
100
125
μA
ΔIISEN
Current Sense Input Offset Current
ΔIISEN = II+ – II–
VI+ = VI–
l
±200
±800
nA
Power Monitor (Note 2)
IPMON(OR)
Power Monitor Output Current Operating
Range
l
±200
μA
IPMON(CAPA)
Power Monitor Output Current Capability
VCC ≥ 12V, VPMON ≥ 0V, and
VV = –9V, VI = –225mV, or
VV = 9V, VI = 225mV
l
900
1200
μA
VCC ≥ 12V, VPMON ≥ 0.5V, and
VV = –9V, VI = 225mV, or
VV = 9V, VI = –225mV
l
–240
–1200
μA
VCC ≥ 12V, VPMON ≥ 4V, and
VV = –9V, VI = 225mV, or
VV = 9V, VI = –225mV
l
–800
–1200
μA
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. All specifications apply at 6V ≤ VCC ≤ 80V, unless otherwise specified.



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