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LTC2906CDDB Datasheet(PDF) 3 Page - Linear Technology

Part # LTC2906CDDB
Description  Precision Dual Supply Monitors with One Pin-Selectable Threshold and One Adjustable Input
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC2906CDDB Datasheet(HTML) 3 Page - Linear Technology

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LTC2906/LTC2907
3
29067f
The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = V1 = 2.5V, VADJ = 0.55V, S1 = TOL = 0V, unless otherwise noted.
(Notes 2, 3, 4)
ELECTRICAL CHARACTERISTICS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The greater of V1, VCC is the internal supply voltage (VMAX).
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.
Note 5: The output pins RST and RST have an internal pull-up to VMAX of
typically –6
µA. However, an external pull-up resistor may be used when
faster rise time is required or for VOH voltages greater than VMAX.
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
µA.
5V Threshold Voltage vs
Temperature
3.3V Threshold Voltage vs
Temperature
2.5V Threshold Voltage vs
Temperature
TYPICAL PERFOR A CE CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ITMR(UP)
TMR Pull-Up Current
(LTC2907)
VTMR = 0V
q
–1.5
–2.1
–2.7
µA
ITMR(DOWN)
TMR Pull-Down Current
(LTC2907)
VTMR = 1.4V
q
1.5
2.1
2.7
µA
tRST
Reset Time-Out Period
(LTC2906)
q
140
200
260
ms
tRST
Reset Time-Out Period
(LTC2907)
CTMR = 22nF
q
140
200
260
ms
tUV
VX Undervoltage Detect to
VX Less Than Reset Threshold VRTX
150
µs
RST or RST
by More than 1%
VOL
Output Voltage Low RST, RST
I = 2.5mA
q
0.15
0.4
V
I = 100
µA; V1 and/or VCC = 1V (RST Only)
q
0.05
0.3
V
VOH
Output Voltage High RST, RST
I = –1
µA
q
VMAX – 1
V
(Notes 2, 5)
Three-State Inputs S1, TOL
VIL
Low Level Input Voltage
q
0.4
V
VIH
High Level Input Voltage
q
1.4
V
VZ
Pin Voltage when Left in Hi-Z State
I = –10
µA
q
0.7
V
I = 0
µA
0.9
V
I = 10
µA
q
1.1
V
IVPG
Programming Input Current (Note 6)
q
±25
µA
Specifications are at TA = 25°C unless otherwise noted.
TEMPERATURE (
°C)
29067 G01
TEMPERATURE (
°C)
TEMPERATURE (
°C)
3.12
3.07
3.02
2.97
2.92
2.87
29067 G02
29067 G03
2.375
2.325
2.275
2.225
2.175
4.75
4.70
4.65
4.60
4.55
4.50
4.45
4.40
4.35
–50
100
25
75
–25
0
50
–50
100
25
75
–25
0
50
–50
100
25
75
–25
0
50
5%
7.5%
10%
5%
7.5%
10%
5%
7.5%
10%


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