lt2940 Linear Technology Corporation, lt2940 Datasheet - Page 3

• Manufacturer Part Number: lt2940
• Description: Power And Current Monitor
• Manufacturer: Linear Technology Corporation

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
SYMBOL
Supply
V
I
V
ΔV
Voltage Sense
V
V
V
I
ΔI
Current Sense
V
V
V
I
ΔI
Power Monitor (Note 2)
I
I
CC
VSEN
ISEN
PMON(OR)
PMON(CAPA)
VSEN(OR)
V
V(CL)
CC
CC(UVLC)
ISEN(OR)
I
I(CL)
VSEN
ISEN
CC(HYST)
PARAMETER
Supply Voltage Operating Range
Supply Current
Supply Undervoltage Latch Clear
Supply Undervoltage Hysteresis
Voltage Sense Pin Operating Range
V
Voltage Sense Differential Input Voltage Range
(Note 5)
V
Voltage Sense Differential Clipping Limit
(Note 5)
Voltage Sense Input Bias Current
V
Voltage Sense Input Offset Current
ΔI
Current Sense Pin Operating Range
I
Current Sense Differential Input Voltage
Range (Note 6)
V
Current Sense Differential Clipping Limit
(Note 6)
Current Sense Input Bias Current
I
Current Sense Input Offset Current
ΔI
Power Monitor Output Current Operating
Range
Power Monitor Output Current Capability
+
+
V
+
+
I
VSEN
ISEN
Pin and I
Pin and I
= V
Pin and V
= V
Pin and V
I
V
+
= I
= I
+
– V
– V
I
V
+
+
–
–
– I
I
–
V
– I
–
–
Pin
Pin
–
I
Pin
Pin
–
V
–
A
= 25°C. All specifi cations apply at 6V ≤ V
CONDITIONS
I
(Note 2)
V
V
V
12V < V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
PMON
CC
CC
CC
CC
CC
CC
CC
V
I
CC
V
V
CC
V
V
CC
V
V
+
+
The
= –9V, V
= 9V, V
= –9V, V
= 9V, V
= –9V, V
= 9V, V
= V
Falling
Rising
≤ 12V
≥ 30V
< 11V
≥ 11V
≥ 12V
= V
≥ 12V, V
≥ 12V, V
≥ 12V, V
= +200μA, I
I
V
CC
–
l
–
I
I
I
denotes the specifi cations which apply over the full operating
< 30V
I
I
I
= 225mV
= –225mV
= –225mV
PMON
PMON
PMON
= –225mV, or
= 225mV, or
= 225mV, or
IMON
≥ 0V, and
≥ 0.5V, and
≥ 4V, and
= +200μA
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
CC
±(V
≤ 80V, unless otherwise specifi ed.
–300
±200
±225
–240
–800
MIN
–0.1
–0.1
–0.1
±200
900
2.3
CC
20
±8
±9
75
6
2
4
– 3)
–100
±200
TYP
±50
100
3.5
2.5
75
V
–1200
–1200
LT2940
±150
±800
1200
MAX
CC
100
100
125
2.7
80
18
80
5
9
– 3
UNITS
3
2940f
mA
mV
mV
mV
nA
nA
μA
nA
μA
μA
μA
μA
V
V
V
V
V
V
V
V
V