LTC2906 LINER [Linear Technology], LTC2906 Datasheet - Page 3
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LTC2906
Manufacturer Part Number
LTC2906
Description
Precision Dual Supply Monitors with One Pin-Selectable Threshold and One Adjustable Input
Manufacturer
LINER [Linear Technology]
Datasheet
1.LTC2906.pdf
(16 pages)
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ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
(Notes 2, 3, 4)
SYMBOL
I
I
t
t
t
V
V
Three-State Inputs S1, TOL
V
V
V
I
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The greater of V1, V
Note 3: All currents into pins are positive; all voltages are referenced to
GND unless otherwise noted.
Note 4: For reset thresholds test conditions refer to the voltage threshold
programming table in the Applications Information section.
Specifications are at T
TYPICAL PERFOR A CE CHARACTERISTICS
TMR(UP)
TMR(DOWN)
RST
RST
UV
VPG
OL
OH
IL
IH
Z
4.75
4.70
4.65
4.60
4.55
4.50
4.45
4.40
4.35
–50
5V Threshold Voltage vs
Temperature
–25
TEMPERATURE ( C)
0
PARAMETER
TMR Pull-Up Current
TMR Pull-Down Current
Reset Time-Out Period
Reset Time-Out Period
V
RST or RST
Output Voltage Low RST, RST
Output Voltage High RST, RST
(Notes 2, 5)
Low Level Input Voltage
High Level Input Voltage
Pin Voltage when Left in Hi-Z State
Programming Input Current (Note 6)
X
Undervoltage Detect to
A
7.5%
10%
5%
25
= 25 C unless otherwise noted.
CC
is the internal supply voltage (V
50
W
75
29067 G01
U
100
(LTC2907)
(LTC2907)
(LTC2906)
(LTC2907)
3.12
3.07
3.02
2.97
2.92
2.87
–50
A
3.3V Threshold Voltage vs
Temperature
= 25 C. V
MAX
CONDITIONS
V
V
C
V
by More than 1%
I = 2.5mA
I = 100 A; V1 and/or V
I = –1 A
I = –10 A
I = 0 A
I = 10 A
TMR
TMR
TMR
X
–25
).
Less Than Reset Threshold V
The
= 1.4V
= 22nF
= 0V
TEMPERATURE ( C)
CC
0
denotes the specifications which apply over the full operating
= V1 = 2.5V, V
10%
7.5%
5%
25
Note 5: The output pins RST and RST have an internal pull-up to V
typically –6 A. However, an external pull-up resistor may be used when
faster rise time is required or for V
Note 6: The input current to the three-state input pins are the pull-up and
the pull-down current when the pins are either set to V1 or GND
respectively. In the open state, the maximum leakage current to V1 or GND
permissible is 10 A.
50
CC
= 1V (RST Only)
ADJ
75
29067 G02
RTX
= 0.55V, S1 = TOL = 0V, unless otherwise noted.
100
LTC2906/LTC2907
2.375
2.325
2.275
2.225
2.175
–50
2.5V Threshold Voltage vs
Temperature
OH
V
MAX
–1.5
MIN
140
140
1.5
1.4
0.7
voltages greater than V
–25
– 1
TEMPERATURE ( C)
0
–2.1
0.15
0.05
TYP
200
200
150
2.1
0.9
10%
7.5%
5%
25
MAX
–2.7
260
260
2.7
0.4
0.3
0.4
1.1
50
25
MAX
.
75
MAX
29067 G03
UNITS
29067f
3
of
100
ms
ms
A
A
V
V
V
V
V
V
V
V
A
s