LTC2908
W W U W
(Notes 1, 2)
ABSOLUTE AXI U RATI GS
Terminal Voltages
Storage Temperature Range
V1, V2, V3, V4 ........................................ –0.3V to 7V
VADJ1, VADJ2 ........................... –0.3V to (VCC + 0.3V)
RST ........................................................ –0.3V to 7V
Operating Temperature Range
DFN Package .....................................–65°C to 125°C
TSOT-23 Package ..............................–65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
LTC2908C-A1/LTC2908C-B1 .................. 0°C to 70°C
LTC2908I-A1/LTC2908I-B1 ................ –40°C to 85°C
U W
U
PACKAGE/ORDER I FOR ATIO
ORDER PART
NUMBER
ORDER PART
NUMBER
TOP VIEW
LTC2908CDDB-A1
LTC2908IDDB-A1
LTC2908CDDB-B1
LTC2908IDDB-B1
LTC2908CTS8-A1
TOP VIEW
LTC2908ITS8-A1
GND
RST
V4
1
2
3
4
8
7
6
5
V
ADJ2
V2 1
V4 2
RST 3
GND 4
8 V1
7 V
V3
V
LTC2908CTS8-B1
LTC2908ITS8-B1
ADJ1
9
ADJ1
6 V3
5 V
V2
V1
ADJ2
TS8 PART
MARKING
DDB8 PART
MARKING
TS8 PACKAGE
8-LEAD PLASTIC TSOT-23
TJMAX = 125°C, θJA = 250°C/ W
DDB8 PACKAGE
8-LEAD (3mm × 2mm) PLASTIC DFN
LTBFJ
LTBFK
LTBFM
LTBFN
LBFD
LBFF
LBFG
LBFH
TJMAX = 125°C, θJA = 76°C/ W
EXPOSED PAD (PIN 9)
(PCB CONNECTION OPTIONAL)
Consult factory for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
(LTC2908-A1) The ● denotes specifications which apply over the full
operating temperature range, otherwise specifications are TA = 25°C. VCC = 5V, unless otherwise noted. (Note 2)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
4.750
3.135
2.375
1.710
0.508
UNITS
V
V
V
V
V
5V, 5% Reset Threshold
3.3V, 5% Reset Threshold
2.5V, 5% Reset Threshold
1.8V, 5% Reset Threshold
ADJ, 5% Reset Threshold
V1 Input Threshold
V2 Input Threshold
V3 Input Threshold
V4 Input Threshold
●
●
●
●
●
4.600
3.036
2.300
1.656
0.492
4.675
3.086
2.338
1.683
0.500
V
V
V
V
V
RT50
RT33
RT25
RT18
RTADJ
V
, V
Input Threshold
ADJ1 ADJ2
(LTC2908-B1) The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are
TA = 25°C. VCC = 3.3V, unless otherwise noted. (Note 2)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
3.135
2.375
1.710
1.425
0.508
UNITS
V
RT33
V
RT25
V
RT18
V
RT15
V
RTADJ
3.3V, 5% Reset Threshold
2.5V, 5% Reset Threshold
1.8V, 5% Reset Threshold
1.5V, 5% Reset Threshold
ADJ, 5% Reset Threshold
V1 Input Threshold
V2 Input Threshold
V3 Input Threshold
V4 Input Threshold
●
●
●
●
●
3.036
2.300
1.656
1.380
0.492
3.086
2.338
1.683
1.403
0.500
V
V
V
V
V
, V
Input Threshold
V
ADJ1 ADJ2
sn2908 2908fs
2
Linear Systems [ Linear Systems ]
