LTC693 LINER [Linear Technology], LTC693 Datasheet - Page 3

• Manufacturer Part Number: LTC693
• Description: Microprocessor Supervisory Circuits
• Manufacturer: LINER [Linear Technology]

PARAMETER
Battery Backup Switching
Operating Voltage Range
V
V
Supply Current (Exclude I
Supply Current in Battery Backup Mode
Battery Standby Current
Battery Switchover Threshold
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,
Watchdog Time-Out Period, External Clock
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
RESET and WDO Output Voltage
ELECTRICAL C
V
OUT
OUT
CC
V
V
(+ = Discharge, – = Charge)
V
(Note 5)
Internal Oscillator
(Note 6)
(Note 4)
(Note 4)
CC
BATT
CC
= Full Operating Range, V
Output Voltage
in Battery Backup Mode
– V
BATT
OUT
CC
)
HARA TERISTICS
= 1V
BATT
= 2.8V, T
C
A
= 25 C, unless otherwise noted.
CONDITONS
I
I
I
I
V
5.5 > 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
Short Period
V
I
I
I
I
I
OUT
OUT
OUT
OUT
SINK
SINK
SINK
SOURCE
SINK
SOURCE
CC
IL
= 0.4V, V
= 0V, V
= 1mA
= 50mA
= 250 A, V
= 3.2mA
= 10 A, V
= 1.6mA, V
= 1.6mA, V
50mA
CC
= 1 A, V
= 1 A, V
> V
BATT
IH
OUT
BATT
CC
CC
= 3.5V
CC
CC
= 2.8V
CC
CC
CC
CC
CC
Sink Current
= 5V
+ 0.2V
= 5V
= 1V
< V
= 4.25V
= 5V
= 5V
= 4.25V
= 5V
BATT
V
V
V
V
CC
BATT
CC
CC
4032
– 0.1
– 1.0
4.50
2.00
4.25
MIN
160
140
960
200
0.5
1.2
1.0
3.5
3.5
– 0.10
80
70
– 0.50
– 0.05
– 0.1
V
LTC692/LTC693
V
V
V
BATT
CC
CC
CC
0.04
0.04
4.40
TYP
200
200
100
100
– 0.005
– 0.005
– 0.250
0.6
0.6
1.6
1.6
70
50
20
35
40
1
1
1
4
– 0.02
MAX
4097
1025
5.50
4.00
0.02
0.10
4.50
2.00
2.25
240
280
120
140
200
1.5
2.5
0.4
0.4
0.4
25
1
5
UNITS
Cycles
Clock
ms/V
ms/V
3
mA
mA
mV
mV
mV
mA
mV
sec
sec
mV
ms
ms
ms
ms
ns
V
V
V
V
V
V
A
A
A
A
V
A
V
V
V
V
V