LTC695-3.3 LINER [Linear Technology], LTC695-3.3 Datasheet - Page 3

• Manufacturer Part Number: LTC695-3.3
• Description: 3.3V Microprocessor Supervisory Circuits
• Manufacturer: LINER [Linear Technology]

ELECTRICAL C
range, otherwise specifications are at T
PARAMETER
Battery Back-Up Switching
Operating Voltage Range
V
V
Supply Current (Exclude I
Supply Current in Battery Back-Up Mode
Battery Standby Current (+ = Discharge, – = Charge)
Battery Switchover Threshold (V
Battery Switchover Hysteresis
BATT ON Output Voltage (Note 4)
BATT ON Output Short-Circuit Current (Note 4)
Reset and Watchdog Timer
Reset Voltage Threshold
Reset Threshold Hysteresis
Reset Active Time
Watchdog Time-Out Period, Internal Oscillator
Watchdog Time-Out Period, External Clock (Note 5)
Reset Active Time PSRR
Watchdog Time-Out Period PSRR, Internal OSC
Minimum WDI Input Pulse Width
RESET Output Voltage at V
RESET and LOW LINE Output Voltage (Note 4)
RESET and WDO Output Voltage (Note 4)
RESET, RESET, WDO, LOW LINE
Output Short-Circuit Current (Note 4)
OUT
OUT
Output Voltage
in Battery Back-Up Mode
OUT
CC
)
HARA TERISTICS
= 1V
CC
– V
BATT
C
)
A
= 25 C. V
CONDITIONS
V
V
I
I
I
I
V
3.6V > V
Power Up
Power Down
I
BATT ON = V
BATT ON = 0V, Source Current
OSC SEL HIGH, V
Long Period, V
Short Period, V
Long Period, V
Short Period, V
Short Period
Long Period
V
I
I
I
I
I
Output Source Current
Output Sink Current
OUT
OUT
OUT
OUT
SINK
SINK
SINK
SOURCE
SINK
SOURCE
CC
BATT
CC
IL
CC
= 0.4V, V
= 0V, V
= 1mA
= 50mA
= 250 A, V
= 3.3V, V
= 800 A
= 10 A, V
= 400 A, V
= 400 A, V
50mA, V
= 0.1 A, V
= 0.1 A, V
CC
> V
BATT
The
IH
OUT
BATT
CC
CC
= 3V
CC
CC
CC
CC
BATT
CC
= 2V
, Sink Current
CC
CC
CC
= 3V
= 3V
= 3V
= 3V
= 1V
= 3.6V
CC
CC
< V
denotes specifications which apply over the operating temperature
= 2.8V
= 3V
+ 0.2V
= 3V
= 2V, unless otherwise noted.
= 3V
= 2.8V
BATT
LTC694-3.3/LTC695-3.3
V
V
V
V
BATT
CC
CC
CC
– 0.02
– 0.10
4032
MIN
160
140
960
200
3.0
1.5
0.5
2.8
1.2
1.0
2.3
2.3
80
70
1
– 0.2
– 0.8
– 0.1
– 0.1
V
V
V
BATT
V
CC
CC
CC
0.04
0.04
TYP
200
200
100
100
0.2
0.2
2.9
1.6
1.6
70
50
20
25
40
32
– 0.01
– 0.01
1
4
2
4
3
9
– 0.4
– 0.02
4097
1025
MAX
5.50
2.75
0.02
0.10
240
280
120
140
200
0.6
1.0
0.3
3.0
2.0
2.25
0.3
0.3
25
25
1
5
UNITS
Cycles
Clock
ms/V
ms/V
ms/V
3
mA
mA
mV
mV
mV
mA
mV
sec
sec
mV
mA
ms
ms
ms
ms
ns
V
V
V
V
V
V
A
A
A
A
V
A
V
V
V
V
V
A