Datasheet
LTC2960
4
2960f
ELECTRICAL CHARACTERISTICS
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.
The l denotes specifications that apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C, V
CC
= 7V, DV
CC
= 3.3V unless otherwise noted (Note 2).
Note 2. All currents into pins are positive; all voltages are referenced to
GND unless otherwise noted.
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current vs Supply Voltage MR Current vs MR Voltage Supply Current vs MR Voltage
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
CONTROL INPUTS: MR, RT
V
RT
Control Input Threshold RT
l
0.4 1.4 V
V
MR
Control Input Threshold MR
l
0.4 1.4 V
t
PW
MR Minimum Detectable Pulse Width
l
20 μs
t
PD
Propagation Delay to RST Falling Manual Reset Falling
l
1 7 20 μs
V
MR
Manual Reset Open Voltage MR Open, MR Load = 100nA
l
2.6 4 V
I
MR
Manual Reset Low Current MR = 400mV, V
CC
≥ 2.5V
l
–0.35 –1 –3 μA
I
LK
Input Leakage Current RT = 15V
MR = 15V
l
l
±100
±100
nA
nA
STATUS OUTPUTS: RST, OUT
V
OL
Voltage Output Low V
CC
= 1.2V, I = 10μA (LTC2960-1/LTC2960-3)
V
CC
= 3V, I = 500μA
l
l
25
100
100
400
mV
mV
V
OH
Voltage Output High I = –100μA (LTC2960-3/LTC2960-4)
l
0.7•DV
CC
V
I
OH
Leakage Current, Output High V = 5.5V
V = 15V (LTC2960-1/LTC2960-2)
V = 5.5V, DV
CC
= GND
l
l
l
±50
±100
±50
nA
nA
nA
I
SC
Output Short-Circuit Current RST = GND DV
CC
= 6V (LTC2960-3/ LTC2960-4)
OUT = GND DV
CC
= 6V (LTC2960-3/ LTC2960-4)
l
l
0.8
0.8
3
3
mA
mA
t
RST
Reset Timeout Period LTC2960-3/LTC2960-4
RT Input High
RT Input Low
l
l
l
140
140
10
200
200
15
280
280
25
ms
ms
ms
V
CC
(V)
0
0
I
CC
(nA)
1200
900
600
300
1500
24 32 40816
2960 G01
125°C
90°C
27°C
–45°C
MR VOLTAGE
(V)
0
0
MR CURRENT (μA)
1.2
1.0
0.8
0.6
0.4
0.2
43215
2960 G02
V
CC
= 2.5V
V
CC
= 7V
MR VOLTAGE
(V)
0
0
MR CURRENT (μA)
2.5
2.0
1.5
1.0
0.5
43215
2960 G03
V
CC
= 2.5V
V
CC
= 7V