LTC2901 Linear Technology, LTC2901 Datasheet - Page 2

• Manufacturer Part Number: LTC2901
• Description: Programmable Quad Supply Monitor with Adjustable Reset and Watchdog Timers
• Manufacturer: Linear Technology

ELECTRICAL CHARACTERISTICS
ABSOLUTE AXI U RATI GS
temperature range, otherwise specifications are at T
SYMBOL
V
V
V
V
V
V
V
V
V
V
V
V
V
I
I
I
I
I
I
I
t
LTC2901
(Notes 1, 2, 3)
V1, V2, V3, V4, V
RST (LTC2901-1)........................................ – 0.3V to 7V
RST (LTC2901-2).......................... – 0.3V to (V2 + 0.3V)
COMPX ....................................................... – 0.3V to 7V
CWT, WDO .................................................. – 0.3V to 7V
V
Reference Load Current (I
V4 Input Current (–ADJ Mode) ............................. –1mA
Operating Temperature Range
Storage Temperature Range .................. – 65 C to 150 C
Lead Temperature (Soldering, 10 sec)................... 300 C
2
VPG
V1
V2
V3
V4
CRT(UP)
CRT(DN)
RST
RT50
RT33
RT30
RT25
RT18
RT15
RTA
RTAN
CC
CCMINP
CCMINC
REF
PG
REF
LTC2901-1C/LTC2901-2C ....................... 0 C to 70 C
LTC2901-1I/LTC2901-2I .................... –40 C to 85 C
, CRT, WDI ............................ – 0.3V to (V
PARAMETER
5V, 5% Reset Threshold
3.3V, 5% Reset Threshold
3V, 5% Reset Threshold
2.5V, 5% Reset Threshold
1.8V, 5% Reset Threshold
1.5V, 5% Reset Threshold
ADJ Reset Threshold
– ADJ Reset Threshold
Minimum Internal Operating Voltage
Minimum Required for Programming
Minimum Required for Comparators
Reference Voltage
Programming Voltage Range
V
V1 Input Current
V2 Input Current
V3 Input Current
V4 Input Current
CRT Pull-Up Current
CRT Pull-Down Current
Reset Time-Out Period
PG
Input Current
PG
W
..................................... – 0.3V to 7V
VREF
W W
) ............................ 1mA
U
A
CONDITIONS
V1 Input Threshold
V1, V2 Input Threshold
V2 Input Threshold
V2, V3 Input Threshold
V3, V4 Input Threshold
V3, V4 Input Threshold
V3, V4 Input Threshold
V4 Input Threshold
RST, COMPX in Correct Logic State;
V
V
V
V
V
V
V1 = 5V, I
V2 = 3.3V
V3 = 2.5V
V3 = 0.55V (ADJ Mode)
V4 = 1.8V
V4 = 0.55V (ADJ Mode)
V4 = –0.05V (–ADJ Mode)
V
V
C
CC
= 25 C. V
CC
CC
CC
CC
CC
PG
CRT
CRT
RT
Rising Prior to Program
Rising
Falling
= 1500pF
+ 0.3V)
= V
= 0V
= 1.3V
2.3V, I
V
The
CCMINP
REF
VREF
CC
VREF
denotes the specifications which apply over the full operating
= 12 A, (Note 4)
= 5V, unless otherwise noted. (Note 3)
= 1mA, C
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
COMP3
COMP1
WDO
WDI
CRT
RST
V3
V1
T
REF
JMAX
16-LEAD PLASTIC SSOP
1
2
3
4
5
6
7
8
= 125 C,
1000pF
GN PACKAGE
TOP VIEW
JA
= 130 C/W
16
15
14
13
12
11
10
9
COMP2
COMP4
V2
V4
V
V
GND
CWT
REF
PG
4.600
3.036
2.760
2.300
1.656
1.380
0.492
1.192
–1.4
MIN
– 18
–15
–15
–15
4.9
10
0
U
GN16 PART MARKING
4.675
3.086
2.805
2.338
1.683
1.403
0.500
1.210
0.52
0.34
TYP
0.8
6.9
–2
43
20
0
LTC2901-1CGN
LTC2901-2CGN
LTC2901-1IGN
LTC2901-2IGN
ORDER PART
NUMBER
29011
29012
29011I
29012I
W
4.750
3.135
2.850
2.375
1.710
1.425
0.508
1.228
MAX
–2.6
2.42
2.32
V
1.2
0.8
8.9
18
75
15
15
15
30
REF
1
2
20
2901is sn2901
UNITS
U
mV
ms
nA
nA
nA
V
V
V
V
V
V
V
V
V
V
V
V
A
A
A
A
A
A