LTC690 Linear Technology, LTC690 Datasheet - Page 2

• Manufacturer Part Number: LTC690
• Description: Microprocessor Supervisory Circuits
• Manufacturer: Linear Technology

LTC690/LTC691
LTC694/LTC695
PRODUCT SELECTIO GUIDE
A
Terminal Voltage
Input Current
PACKAGE/ORDER I FOR ATIO
LTC690
LTC691
LTC694
LTC695
LTC699
LTC1232
LTC1235
2
BSOLUTE
V
V
All Other Inputs .................. – 0.3V to (V
V
V
GND .............................................................. 20mA
LOW LINE
BATT ON
OSC SEL
CC
BATT
CC
BATT
OSC IN
V
V
V
GND
T
T
V
BATT
GND
OUT
OUT
V
.................................................... – 0.3V to 6.0V
.............................................................. 200mA
PFI
JMAX
JMAX
CC
8-LEAD CERDIP
CC
T
J8 PACKAGE
JMAX
................................................ – 0.3V to 6.0V
............................................................ 50mA
= 110 C,
= 110 C,
1
3
4
2
4
5
6
7
8
1
2
3
= 110 C,
16-LEAD PDIP
TOP VIEW
N PACKAGE
TOP VIEW
PINS
JA
JA
16
16
16
W
8
8
8
8
= 130 C/W (N8)
JA
N8 PACKAGE
8-LEAD PDIP
= 100 C/W (J8)
= 130 C/W
A
XI
8
6
5
12
7
16
15
14
13
11
10
9
WDI
V
PFO
RESET
W
RESET
RESET
PFI
WDO
CE IN
CE OUT
WDI
PFO
BATT
RESET
X
X
X
X
X
X
X
U
U
W
U
R
ORDER PART
WATCHDOG
A
LTC691CN
LTC691IN
LTC695CN
LTC695IN
LTC690CN8
LTC690IN8
LTC690MJ8
LTC694CN8
LTC694IN8
W
NUMBER
TIMER
TI
X
X
X
X
X
X
X
OUT
U
G
+ 0.3V)
S
U
BATTERY
BACK-UP
(Notes 1 and 2)
X
X
X
X
X
(Note 3)
T
FR4 Material, Still Air at 25 C, Copper Trace
T
FR4 Material, Still Air AT 25 C, Copper Trace
V
Power Dissipation ............................................. 500mW
Operating Temperature Range
Storage Temperature Range ................ – 65 C to 150 C
Lead Temperature (Soldering, 10 sec.)................ 300 C
JMAX
JMAX
OUT
LOW LINE
= 110 C,
= 110 C,
POWER-FAIL
LTC690/91/94/95C ............................... 0 C to 70 C
LTC690/91/94/95I ........................... – 40 C to 85 C
LTC690M ...................................... – 55 C to 125 C
BATT ON
OSC SEL
WARNING
V
OSC IN
GND
Output Current ................. Short-Circuit Protected
V
OUT
V
PFI
V
CC
BATT
GND
OUT
V
CC
X
X
X
X
X
1
2
3
4
JA
JA
16-LEAD WIDE PLASTIC SO
8-LEAD PLASTIC SO
1
2
3
4
5
6
7
8
= 130 C/W Conditions: PCB mount on
= 180 C/W Conditions: PCB Mount on
S8 PACKAGE
TOP VIEW
SW PACKAGE
TOP VIEW
RAM WRITE
PROTECT
X
X
X
8
7
6
5
RESET
16
15
14
13
12
11
10
V BATT
WDI
PFO
9
RESET
RESET
WDO
CE IN
CE OUT
WDI
PFO
PFI
PUSH-BUTTON
RESET
X
X
ORDER PART
LTC691CSW
LTC691ISW
LTC695CSW
LTC695ISW
LTC690CS8
LTC690IS8
LTC694CS8
LTC694IS8
690
690I
MARKING
NUMBER
S8 PART
CONDITIONAL
BATTERY
BACK-UP
X
694
694I