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