LTC2903 LINER [Linear Technology], LTC2903 Datasheet - Page 4

• Manufacturer Part Number: LTC2903
• Description: Low Voltage Supervisorwith 27 Selectable Thresholds and Watchdog Timer
• Manufacturer: LINER [Linear Technology]

LTC2917/LTC2918
ELECTRICAL CHARACTERISTICS
SYMBOL
V
V
V
I
Monitor Input (VM)
V
V
V
V
V
V
V
V
V
R
I
Three-State Inputs (SEL1, SEL2), (TOL, LTC2917)
V
V
V
I
I
Reset Timer Control (RT)
I
I
I
V
4
temperature range, otherwise specifi cations are at T
CC
VM(ADJ)
TPIN, Z
TPIN, H/L
RT(UP)
RT(DOWN)
RT(INT)
CC(MIN)
CC(UVLO)
CC(SHUNT)
MT120
MT50
MT33
MT25
MT18
MT15
MT12
MT10
MTADJ
TPIN, LOW
TPIN, HIGH
TPIN, Z
RT(INT, LH)
VM
PARAMETER
Minimum Supply Voltage
Supply Undervoltage Lockout
Shunt Regulation Voltage
V
12V, 5% Reset Threshold
12V, 10% Reset Threshold
12V, 15% Reset Threshold
5V, 5% Reset Threshold
5V, 10% Reset Threshold
5V, 15% Reset Threshold
3.3V, 5% Reset Threshold
3.3V, 10% Reset Threshold
3.3V, 15% Reset Threshold
2.5V, 5% Reset Threshold
2.5V, 10% Reset Threshold
2.5V, 15% Reset Threshold
1.8V, 5% Reset Threshold
1.8V, 10% Reset Threshold
1.8V, 15% Reset Threshold
1.5V, 5% Reset Threshold
1.5V, 10% Reset Threshold
1.5V, 15% Reset Threshold
1.2V, 5% Reset Threshold
1.2V, 10% Reset Threshold
1.2V, 15% Reset Threshold
1V, 5% Reset Threshold
1V, 10% Reset Threshold
1V, 15% Reset Threshold
ADJ (0.5V), 5% Reset Threshold
ADJ (0.5V), 10% Reset Threshold
ADJ (0.5V), 15% Reset Threshold
VM Input Impedance (Note 4)
ADJ Input Current
Low Level Input Voltage
High Level Input Voltage
Pin Voltage when Open
Allowable Leakage in Open State
Pin Input Current
RT Pull Up Current
RT Pull Down Current
Internal RT V
RT Internal Timer Threshold
CC
Pin Current
CC
Detect Current
A
= 25°C. V
CONDITIONS
⎯ R ⎯ S ⎯ T in Correct Logic State
I
SEL1, SEL2, TOL, ⎯ M ⎯ R = Open
SEL1, SEL2, TOL = GND (LTC2917)
⎯ M ⎯ R = V
Fixed Threshold Modes
VM = 0.5V
I = 0μA
V
V
V
V
V
VCC
TPIN
RT
RT
RT
RT
The
= 0.25V
= 1.1V
= V
Rising, Referenced to V
= 0.5mA
= 0V, V
CC
CC
●
CC
(LTC2918)
denotes the specifi cations which apply over the full operating
= 2.5V, unless otherwise noted. (Note 2)
CC
CC
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
11.04
10.44
4.600
4.350
4.100
3.036
2.871
2.706
2.300
2.175
2.050
1.656
1.566
1.476
1.380
1.305
1.230
1.104
1.044
0.984
0.920
0.870
0.820
460.0
435.0
410.0
–100
9.84
MIN
0.8
5.7
0.5
1.4
–2
2
11.22
10.62
10.02
4.675
4.425
4.175
3.086
2.921
2.756
2.338
2.213
2.088
1.683
1.593
1.503
1.403
1.328
1.253
1.122
1.062
1.002
0.935
0.885
0.835
467.5
442.5
417.5
–160
TYP
6.2
0.9
30
45
–3
3
1
11.40
10.80
10.20
4.750
4.500
4.250
3.135
2.970
2.805
2.375
2.250
2.125
1.710
1.620
1.530
1.425
1.350
1.275
1.140
1.080
1.020
0.950
0.900
0.850
475.0
450.0
425.0
MAX
–300
±15
±20
1.5
7.0
0.5
50
80
±5
–4
8
4
8
UNITS
29178f
MΩ
mV
mV
mV
mV
μA
μA
nA
μA
μA
μA
μA
μA
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V