lt2940 Linear Technology Corporation, lt2940 Datasheet - Page 4

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

ELECTRICAL CHARACTERISTICS
LT2940
SYMBOL
V
E
K
V
V
I
BW
Current Monitor (Note 2)
I
V
E
G
V
BW
Comparator
V
ΔV
I
I
temperature range, otherwise specifi cations are at T
4
PMON(OS)
IMON(FS)
CMP(BIAS)
CMPOUT(OL)
PMON
V(OSP)
IMON
PMON
PMON
I(OSP)
IMON
I(OSI)
CMP(TH)
IMON
CMP(HYST)
PMON
IMON
PARAMETER
Power Monitor Output Compliance Voltage
Power Monitor Output Total Error (Note 4)
Power Monitor Scaling Coeffi cient
I
Power Monitor Voltage Sense Input-Referred
Offset Voltage
Power Monitor Current Sense Input-Referred
Offset Voltage
Power Monitor Output Offset Current
Power Monitor Output Bandwidth
Current Monitor Output Current Operating
Range
Current Monitor Output Compliance Voltage
Current Monitor Output Total Error (Note 4)
Current Monitor Scaling, I
Current Monitor Current Sense Input-Referred
Offset Voltage
Current Monitor Output Bandwidth
Comparator Threshold Voltage
Comparator Threshold Hysteresis
Comparator Input Bias Current
CMPOUT Output Low Voltage
PMON
= K
PMON
• V
V
• V
I
IMON
= G
IMON
• V
I
A
= 25°C. All specifi cations apply at 6V ≤ V
CONDITIONS
V
12V < V
V
V
12V < V
V
|V
|V
|V
|V
Quadrants I and III of Shaded Region
in Figure 4
|V
V
V
V
R
V
12V < V
V
V
12V < V
V
|V
|V
|V
200mV < |V
V
R
CMP
CMP
1V ≤ V
CMP
CC
CC
CC
CC
V
I
V
PMON
CC
CC
CC
CC
I
IMON
V
V
V
V
V
I
I
I
= 0mV
–
= ±200mV
| ≤ 200mV, 25°C ≤ T
| ≤ 200mV, LT2940C
| ≤ 200mV, LT2940I
= 0V
The
≤ 12V, I
≥ 30V, I
≤ 12V, I
≥ 30V, I
• V
• V
• V
• V
• V
≤ 12V, I
≥ 30V, I
≤ 12V, I
≥ 30V, I
= 0V, V
+
+
+
Rising
Falling
High, I
CMP +
= 2k
I
I
I
I
I
= 2k
CC
CC
CC
CC
| ≤ 0.4V
| ≤ 0.4V
| ≤ 0.4V
| ≤ 0.4V
| = 0.4V
l
< 30V, I
< 30V, I
< 30V, I
< 30V, I
denotes the specifi cations which apply over the full operating
I
PMON
PMON
PMON
PMON
IMON
IMON
IMON
PMON
I
≤ 1.5V
| ≤ 225mV
= 0mV
CMPOUT
2
2
2
2
2
, 25°C < T
, LT2940C
, LT2940I
≥ 0μA
≥ 0μA
< 0μA
≥ 0μA
≥ 0μA
< 0μA
< 0μA
< 0μA
PMON
PMON
IMON
PMON
= 3mA
A
≥ 0μA
≥ 0μA
< 0μA
< 0μA
≤ 85°C
A
≤ 85°C
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
CC
≤ 80V, unless otherwise specifi ed.
1.222
±200
MIN
485
975
–15
0.5
0.5
0.5
0.5
0.5
0.5
0
0
0
0
0
0
1.240
1000
±100
±2.5
±2.5
±3.5
±1.5
±2.5
±2.5
TYP
500
±40
–35
0.5
0.2
±2
±5
±2
±6
±2
±2
1
V
V
V
V
CC
CC
CC
CC
1.258
±100
1025
±300
MAX
±3.5
±12
±15
515
±15
–60
7.5
7.5
7.5
7.5
0.4
12
12
±5
±7
±9
±6
12
12
±3
±4
±5
±7
– 4.5
– 4.5
– 4.5
– 4.5
UNITS
μA /V
μA /V
%FS
%FS
%FS
%FS
%FS
%FS
%FS
%FS
%FS
MHz
MHz
2940f
mV
mV
mV
mV
μA
μA
nA
V
V
V
V
V
V
V
V
V
V
V
V
V
V
2