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PDF ADM13307 Data sheet ( Hoja de datos )
| Número de pieza | ADM13307 | |
| Descripción | Triple Processor Supervisors | |
| Fabricantes | Analog Devices | |
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FEATURES
Triple supervisory circuits
Supply voltage range of 2.0 V to 5.5 V
Pretrimmed threshold options: 1.8 V, 2.5 V, 3.3 V, and 5 V
Adjustable 0.6 V and 1.25 V voltage references
Maximum supply current of 40 μA
140 ms (minimum) reset timeout
RESET valid from VDD ≥ 1.1 V
Push-pull RESET and RESET outputs
8-lead, narrow body SOIC package
Temperature range: −40°C to +85°C
APPLICATIONS
Supervising DSPs/microcontrollers
Industrial and portable equipment
Wireless systems
Notebook/desktop computers
GENERAL DESCRIPTION
The ADM13307 is a triple voltage supervisor designed to
monitor up to three voltage levels in DSP and microprocessor-
based systems.
There are five models available, all of which feature a combina-
tion of internally pretrimmed undervoltage threshold options
for monitoring 1.8 V, 2.5 V, 3.3 V, and 5 V supplies. There are
also two adjustable input options with undervoltage thresholds of
either 0.6 V or 1.25 V.
The ADM13307-18, ADM13307-25, and ADM13307-33
models have two internally fixed thresholds and one externally
programmable threshold via a resistor string. The ADM13307-4
and ADM13307-5 offer one internally fixed threshold and two
externally programmable thresholds. See the Ordering Guide
for a list of all available options.
During power-up, RESET is asserted when the supply voltage
exceeds 1.1 V. The device then monitors the SENSEv input
pins and holds the RESET output low as long as the SENSEv
pins remain below the rising threshold voltage, VIT+.
Once the supplies monitored at the SENSEv inputs rise above
their associated thresholds, the reset signal remains low for the
reset timeout period before deasserting. Subsequently, if a volt-
age monitored by the SENSEv pins falls below its associated
falling input threshold voltage, VIT−, the RESET output asserts.
Triple Processor Supervisors
ADM13307
VDD
MR
SENSE1
FUNCTIONAL BLOCK DIAGRAMS
ADM13307-18
ADM13307-25
ADM13307-33
14kΩ
R1 R2
RESET
LOGIC + TIMER
RESET
SENSE2
GND
R3
R4
RESET
1.25V
OSCILLATOR
SENSE3
Figure 1.
VDD
MR
SENSE1
GND
14kΩ
R1 R2
SENSE2
0.6V
SENSE3
ADM13307-4
ADM13307-5
RESET
LOGIC + TIMER
RESET
RESET
OSCILLATOR
Figure 2.
The ADM13307 features both an active high RESET and an
active low RESET output.
The manual reset input of the ADM13307 can be used to initiate
a reset by means of an external push button or logic signal.
The ADM13307 is available in an 8-lead narrow body SOIC
package. The device operates over the extended industrial
temperature range of −40°C to +85°C.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2007 Analog Devices, Inc. All rights reserved.
Free Datasheet http://www.datasheet4u.com/
1 page  
ADM13307
TIMING REQUIREMENTS
VDD = 2.0 V to 5.5 V, RL = 1 MΩ, CL = 50 pF, TA = 25°C.
Table 3. ADM13307-18, ADM13307-25 and ADM13307-33
Parameter
Min Typ Max
Pulse Width (tw)
SENSEv
6
MR 100
Unit
μs
ns
Test Conditions/Comments
VSENSEvL = VIT− − 0.3 V, VSENSEvH = VIT+ + 0.3 V
VIH = 0.7 × VDD, VIL = 0.3 × VDD
Table 4. ADM13307-4 and ADM13307-5
Parameter
Min Typ
Pulse Width (tw)
SENSEv
30
MR 100
Max
Unit
μs
ns
Test Conditions/Comments
VSENSEvL = VIT− − 0.3 V, VSENSEvH = VIT+ + 0.3 V
VIH = 0.7 × VDD, VIL = 0.3 × VDD
SWITCHING CHARACTERISTICS
VDD = 2.0 V to 5.5 V, RL = 1 MΩ, CL = 50 pF, TA = 25°C
Table 5. ADM13307-18, ADM13307-25 and ADM13307-33
Parameter
Delay Time (td)
Min Typ Max Unit Test Conditions/Comments
140 200 280 ms VI(SENSEv) ≥ VIT+ + 0.2 V, MR ≥ 0.7 × VDD
Propagation Delay, High-to-Low, MR to RESET1/RESET (tPHL)
200 500 ns
VI(SENSEv) ≥ VIT+ + 0.2 V, VIH ≥ 0.7 × VDD, VIL ≥ 0.3 × VDD
Propagation Delay, Low-to-High, MR to RESET/RESET1 (tPLH)
200 500 ns
VI(SENSEv) ≥ VIT+ + 0.2 V, VIH ≥ 0.7 × VDD, VIL ≥ 0.3 × VDD
Propagation Delay, High-to-Low, SENSEv to RESET1/RESET (tPHL)
15
μs VIH = VIT+ + 0.3 V, VIL = VIT− − 0.3 V, MR ≥ 0.7 × VDD
Propagation Delay, Low-to-High, SENSEv to RESET/RESET1 (tPLH)
15
μs VIH = VIT+ + 0.3 V, VIL = VIT− − 0.3 V, MR ≥ 0.7 × VDD
1 The reset timeout delay of 200 ms masks the propagation delay
Table 6. ADM13307-4 and ADM13307-5
Parameter
Delay Time (td)
Propagation Delay, High-to-Low, MR to RESET1/RESET (tPHL)
Propagation Delay, Low-to-High, MR to RESET/RESET1 (tPLH)
Propagation Delay, High-to-Low, SENSEv to RESET1/RESET (tPHL)
Propagation Delay, Low-to-High, SENSEv to RESET/RESET1 (tPLH)
Min Typ Max Unit Test Conditions/Comments
140 200 280 ms VI(SENSEv) ≥ VIT+ + 0.2 V, MR ≥ 0.7 × VDD
200 500 ns
VI(SENSEv) ≥ VIT+ + 0.2 V, VIH ≥ 0.7 × VDD, VIL ≥ 0.3 × VDD
200 500 ns
VI(SENSEv) ≥ VIT+ + 0.2 V, VIH ≥ 0.7 × VDD, VIL ≥ 0.3 × VDD
30 μs VIH = VIT+ + 0.3 V, VIL = VIT− − 0.3 V, MR ≥ 0.7 × VDD
30 μs VIH = VIT+ + 0.3 V, VIL = VIT− − 0.3 V, MR ≥ 0.7 × VDD
1 The reset timeout delay of 200 ms masks the propagation delay.
FUNCTIONAL TRUTH TABLE
Table 7.
MR
L
H
H
H
H
H
H
H
H
SENSE1 > VIT1
X1
0
0
0
0
1
1
1
1
1 X = don’t care.
SENSE2 > VIT2
X1
0
0
1
1
0
0
1
1
SENSE3 > VIT3
X1
0
1
0
1
0
1
0
1
RESET
L
L
L
L
L
L
L
L
H
RESET
H
H
H
H
H
H
H
H
L
Rev. 0 | Page 5 of 12
Free Datasheet http://www.datasheet4u.com/
5 Page 
ADM13307
OUTLINE DIMENSIONS
5.00 (0.1968)
4.80 (0.1890)
4.00 (0.1574)
3.80 (0.1497)
8
1
5
6.20 (0.2441)
4 5.80 (0.2284)
0.25 (0.0098)
0.10 (0.0040)
1.27 (0.0500)
BSC
1.75 (0.0688)
1.35 (0.0532)
COPLANARITY
0.10 SEATING
PLANE
0.51 (0.0201)
0.31 (0.0122)
0.50 (0.0196)
0.25 (0.0099)
45°
8°
0°
1.27 (0.0500)
0.25 (0.0098) 0.40 (0.0157)
0.17 (0.0067)
COMPLIANT TO JEDEC STANDARDS MS-012-A A
CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.
Figure 16. 8-Lead Standard Small Outline Package [SOIC_N]
Narrow Body
(R-8)
Dimensions shown in millimeters and (inches).
ORDERING GUIDE
Model
ADM13307-18ARZ 1
ADM13307-18ARZ-RL71
ADM13307-25ARZ1
ADM13307-25ARZ-RL71
ADM13307-33ARZ1
ADM13307-33ARZ-RL71
ADM13307-4ARZ1
ADM13307-4ARZ-RL71
ADM13307-5ARZ1
ADM13307-5ARZ-RL71
Nominal Input Voltage
SENSE1 SENSE2 SENSE3
3.3 V
1.8 V
Adj2
3.3 V
1.8 V
Adj2
3.3 V
2.5 V
Adj2
3.3 V
2.5 V
Adj2
5V
3.3 V
Adj2
5V
3.3 V
Adj2
2.5 V Adj3 Adj3
2.5 V Adj3 Adj3
3.3 V Adj3 Adj3
3.3 V Adj3 Adj3
Threshold Voltage (Typical)
SENSE1 SENSE2 SENSE3
2.93 V 1.68 V 1.25 V
2.93 V 1.68 V 1.25 V
2.93 V 2.25 V 1.25 V
2.93 V 2.25 V 1.25 V
4.55 V 2.93 V 1.25 V
4.55 V 2.93 V 1.25 V
2.25 V 0.6 V
0.6 V
2.25 V 0.6 V
0.6 V
2.93 V 0.6 V
0.6 V
2.93 V 0.6 V
0.6 V
Temperature
Range
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
Package
Description
8-Lead SOIC_N
8-Lead SOIC_N
8-Lead SOIC_N
8-Lead SOIC_N
8-Lead SOIC_N
8-Lead SOIC_N
8-Lead SOIC_N
8-Lead SOIC_N
8-Lead SOIC_N
8-Lead SOIC_N
1 Z = RoHS Compliant Part.
2 1.25 V adjustable. External resistor divider determines the actual sense voltage.
3 0.6 V adjustable. External resistor divider determines the actual sense voltage.
Package
Option
R-8
R-8
R-8
R-8
R-8
R-8
R-8
R-8
R-8
R-8
Rev. 0 | Page 11 of 12
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet ADM13307.PDF ] | |
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