Datasheet
2
LTC2901
2901fb
V1, V2, V3, V4, V
PG
..................................... –0.3V to 7V
RST (LTC2901-1/LTC2901-3) ..................... – 0.3V to 7V
RST (LTC2901-2/LTC2901-4) ....... –0.3V to (V2 + 0.3V)
COMPX ....................................................... –0.3V to 7V
CWT, WDI, WDO ......................................... – 0.3V to 7V
V
REF
, CRT, TOL ............................ –0.3V to (V
CC
+ 0.3V)
Reference Load Current (I
VREF
) ............................ ±1mA
V4 Input Current (–ADJ Mode)............................. –1mA
ABSOLUTE AXI U RATI GS
WWWU
(Notes 1, 2, 3)
Operating Temperature Range
LTC2901-1C/LTC2901-2C/
LTC2901-3C/LTC2901-4C ....................... 0°C to 70°C
LTC2901-1I/LTC2901-2I/
LTC2901-3I/LTC2901-4I .................... –40°C to 85°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................... 300°C
ORDER PART
NUMBER
GN16 PART MARKING
29011
29012
29011I
29012I
T
JMAX
= 125°C, θ
JA
= 110°C/W
LTC2901-1CGN
LTC2901-2CGN
LTC2901-1IGN
LTC2901-2IGN
PACKAGE/ORDER I FOR ATIO
UU
W
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ORDER PART
NUMBER
GN16 PART MARKING
29013
29014
29013I
29014I
LTC2901-3CGN
LTC2901-4CGN
LTC2901-3IGN
LTC2901-4IGN
GN PACKAGE
16-LEAD PLASTIC SSOP
1
2
3
4
5
6
7
8
TOP VIEW
16
15
14
13
12
11
10
9
COMP3
COMP1
V3
V1
CRT
RST
WDO
WDI
COMP2
COMP4
V2
V4
V
REF
V
PG
GND
CWT
GN PACKAGE
16-LEAD PLASTIC SSOP
1
2
3
4
5
6
7
8
TOP VIEW
16
15
14
13
12
11
10
9
COMP3
COMP1
V3
V1
CRT
RST
TOL
WDI
COMP2
COMP4
V2
V4
V
REF
V
PG
GND
CWT
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
RT50
5V, 5% Reset Threshold V1 Input Threshold ● 4.600 4.675 4.750 V
5V, 10% Reset Threshold
● 4.350 4.425 4.500 V
V
RT33
3.3V, 5% Reset Threshold V1, V2 Input Threshold ● 3.036 3.086 3.135 V
3.3V, 10% Reset Threshold
● 2.871 2.921 2.970 V
V
RT30
3V, 5% Reset Threshold V2 Input Threshold ● 2.760 2.805 2.850 V
3V, 10% Reset Threshold ● 2.610 2.655 2.700 V
V
RT25
2.5V, 5% Reset Threshold V2, V3 Input Threshold ● 2.300 2.338 2.375 V
2.5V, 10% Reset Threshold
● 2.175 2.213 2.250 V
V
RT18
1.8V, 5% Reset Threshold V3, V4 Input Threshold ● 1.656 1.683 1.710 V
1.8V, 10% Reset Threshold ● 1.566 1.593 1.620 V
V
RT15
1.5V, 5% Reset Threshold V3, V4 Input Threshold ● 1.380 1.403 1.425 V
1.5V, 10% Reset Threshold
● 1.305 1.328 1.350 V
V
RTA
ADJ, 5% Reset Threshold V3, V4 Input Threshold ● 0.492 0.500 0.508 V
ADJ, 10% Reset Threshold
● 0.466 0.473 0.481 V
V
RTAN
–ADJ Reset Threshold V4 Input Threshold ● –18 0 18 mV
V
CC
Minimum Internal Operating Voltage RST, COMPX in Correct Logic State; ● 1V
V
CC
Rising Prior to Program
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 5V, unless otherwise noted. (Notes 3, 4)
ELECTRICAL CHARACTERISTICS
T
JMAX
= 125°C, θ
JA
= 110°C/W
Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/