AD ADM13305 Dual processor supervisors with watchdog Datasheet

Dual Processor
Supervisors with Watchdog
ADM13305
FEATURES
FUNCTIONAL BLOCK DIAGRAMS
ADM13305-18
ADM13305-25
ADM13305-33
VDD
14kΩ
MR
RESET
SENSE1
R1
RESET
SENSE2
R3
R4
GND
1.25V
APPLICATIONS
Supervising DSPs/microcontrollers
Industrial and portable equipment
Wireless systems
Notebook/desktop computers
RESET
LOGIC + TIMER
R2
WDI
TRANSITION
DETECTION
OSCILLATOR
WATCHDOG
LOGIC + TIMER
06922-002
Dual supervisory circuits
Supply voltage range of 2.7 V to 5.5 V
Pretrimmed threshold options: 1.8 V, 2.5 V, 3.3 V, and 5 V
Adjustable 0.6 V voltage reference
Maximum supply current of 40 μA
140 ms (minimum) reset timeout
Watchdog timer with 1.6 sec (typical) 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
Figure 1.
GENERAL DESCRIPTION
There are five models available, all of which feature a combination
of internally pretrimmed undervoltage threshold options for
monitoring 1.8 V, 2.5 V, 3.3 V, and 5 V supplies. There is also
an adjustable input option with an undervoltage threshold voltage
of 0.6 V.
The ADM13305-18, ADM13305-25, and ADM13305-33 models
have two internally fixed thresholds. The ADM13305-4 and
ADM13305-5 offer one internally fixed threshold and one
externally programmable threshold via a resistor string. 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 either of the SENSEv
inputs remains 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
voltage monitored by the SENSEv pins falls below its associated falling threshold, VIT−, the RESET output asserts. The
ADM13305 features both an active high RESET and an active
low RESET output.
ADM13305-4
ADM13305-5
VDD
14kΩ
MR
RESET
SENSE1
R1
RESET
LOGIC + TIMER
R2
GND
RESET
SENSE2
0.6V
WDI
TRANSITION
DETECTION
OSCILLATOR
WATCHDOG
LOGIC + TIMER
06922-001
The ADM13305 is a dual voltage supervisor designed to
monitor two supplies and provide a reset signal to DSP and
microprocessor-based systems.
Figure 2. .
As well as providing power-on reset signals, an on-chip watchdog
timer can reset the microprocessor if it fails to strobe within the
preset timeout period. A reset signal can also be asserted by an
external push button through the manual reset input pin.
The ADM13305 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.
Trademarks and registered trademarks are the property of their respective owners.
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.
ADM13305
TABLE OF CONTENTS
Features .............................................................................................. 1
ESD Caution...................................................................................6
Applications ....................................................................................... 1
Pin Configuration and Function Descriptions..............................7
General Description ......................................................................... 1
Typical Performance Characteristics ..............................................8
Functional Block Diagrams ............................................................. 1
Theory of Operation ...................................................................... 10
Revision History ............................................................................... 2
Input Configuration ................................................................... 10
Specifications..................................................................................... 3
Reset Output ............................................................................... 10
Timing Requirements .................................................................. 5
Watchdog Timer ......................................................................... 10
Switching Characteristics ............................................................ 5
Manual Reset (MR) .................................................................... 11
Functional Truth Table ................................................................ 5
Outline Dimensions ....................................................................... 12
Absolute Maximum Ratings............................................................ 6
Ordering Guide .......................................................................... 12
Thermal Resistance ...................................................................... 6
REVISION HISTORY
8/07—Revision 0: Initial Version
Rev. 0 | Page 2 of 12
ADM13305
SPECIFICATIONS
VDD = 2.7 V to 5.5 V, −40°C ≤ TA ≤ +85°C, unless otherwise noted.
Table 1. ADM13305-18, ADM13305-25, and ADM13305-33
Parameter
OPERATING VOLTAGE RANGE, VDD
SUPPLY CURRENT, IDD
INPUT CAPACITANCE, CI
RESET, RESET OUTPUT
High Level Output Voltage, VOH
Min
2.7
Typ
10
VDD − 0.2
VDD − 0.4
VDD − 0.4
Low Level Output Voltage, VOL
Power-Up Reset Voltage 1
SENSE INPUTS
Falling Threshold Voltage, VIT−
0.2
0.4
0.4
0.4
1.64
2.20
2.86
4.46
1.64
2.20
2.86
4.46
1.68
2.25
2.93
4.55
1.68
2.25
2.93
4.55
15
20
30
40
Hysteresis at SENSEv Inputs, VHYS
WDI
Average High Level Input Current, IH(AV)
Average Low Level Input Current, IL(AV)
INPUT VOLTAGE AT MR AND WDI
High Level, VIH
Low Level, VIL
INPUT TRANSITION RISE AND FALL RATE AT MR
HIGH LEVEL INPUT CURRENT, IH
WDI
MR
SENSE1
SENSE2
LOW LEVEL INPUT CURRENT, IL
WDI
MR
SENSEv
1
Max
5.5
40
1.72
2.30
3.00
4.64
1.73
2.32
3.02
4.67
100
−15
150
−20
0.7 × VDD
−1
Unit
V
μA
pF
Test Conditions/Comments
VI = 0 V to VDD
V
V
V
V
V
V
V
IOH = −20 μA
IOH = −2 mA, VDD = 3.3 V
IOH = −3 mA, VDD = 5.5 V
IOL = 20 μA
IOL = 2 mA, VDD = 3.3 V
IOL = 3 mA, VDD = 5.5 V
IOL = 20 μA, VDD ≥ 1.1 V
V
V
V
V
V
V
V
V
mV
mV
mV
mV
TA = 0°C to 85°C
TA = 0°C to 85°C
TA = 0°C to 85°C
TA = 0°C to 85°C
TA = −40°C to +85°C
TA = −40°C to +85°C
TA = −40°C to +85°C
TA = −40°C to +85°C
VIT− = 1.68 V
VIT− = 2.25 V
VIT− = 2.93 V
VIT− = 4.55 V
μA
μA
WDI = VDD = 5.5 V
WDI = 0 V, VDD = 5.5 V
0.3 × VDD
50
V
V
ns/V
120
−130
5
6
170
−180
8
9
μA
μA
μA
μA
WDI = VDD = 5.5 V
MR = 0.7 × VDD, VDD = 5.5 V
SENSE1 = VDD = 5.5 V
SENSE2 = VDD = 5.5 V
−120
−430
−170
−600
+1
μA
μA
μA
WDI = 0 V, VDD = 5.5 V
MR = 0 V, VDD = 5.5 V
SENSE1, SENSE2 = 0 V
The lowest supply voltage at which RESET becomes active. tr, VDD ≥ 15 μs/V.
Rev. 0 | Page 3 of 12
ADM13305
VDD = 2.7 V to 5.5 V, −40°C ≤ TA ≤ +85°C, unless otherwise noted.
Table 2. ADM13305-4 and ADM13305-5
Parameter
OPERATING VOLTAGE RANGE, VDD
SUPPLY CURRENT, IDD
INPUT CAPACITANCE, CI
RESET, RESET OUTPUT
High-Level Output Voltage, VOH
Min
2.7
Typ
10
VDD − 0.2
VDD − 0.4
VDD − 0.4
Low-Level Output Voltage, VOL
Power-Up Reset Voltage 1
SENSEv INPUTS
Falling Input Threshold Voltage, VIT−
0.2
0.4
0.4
0.4
0.5952
2.23
2.90
Hysteresis at SENSEv Inputs, VHYS
WDI
Average High Level Input Current, IH(AV)
Average Low Level Input Current, IL(AV)
INPUT VOLTAGE AT MR AND WDI
High Level, VIH
Low Level, VIL
INPUT TRANSITION RISE AND FALL RATE AT MR
HIGH LEVEL INPUT CURRENT, IH
WDI
MR
SENSE1
SENSE2
LOW LEVEL INPUT CURRENT, IL
WDI
MR
SENSEv
1
Max
5.5
40
Unit
V
μA
pF
Test Conditions/Comments
VI = 0 V to VDD
V
V
V
V
V
V
V
IOH = −20 μA
IOH = −2 mA, VDD = 3.3 V
IOH = −3 mA, VDD = 5.5 V
IOH = 20 μA
IOH = 2 mA, VDD = 3.3 V
IOH = 3 mA, VDD = 5.5 V
IOH = 20 μA, VDD ≥ 1.1 V
0.6
2.25
2.93
0
20
30
0.6048
2.29
2.98
V
V
V
mV
mV
mV
TA = −40°C to +85°C
TA = −40°C to +85°C
TA = −40°C to +85°C
VIT− = 0.6 V
VIT− = 2.25 V
VIT− = 2.93 V
100
−15
150
−20
μA
μA
WDI = VDD = 5.5 V
WDI = 0 V, VDD = 5.5 V
0.3 × VDD
50
V
V
ns/V
120
−130
5
170
−180
8
+50
μA
μA
μA
nA
WDI = VDD = 5.5 V
MR = 0.7 × VDD, VDD = 5.5 V
SENSE1 = VDD = 5.5 V
SENSE2 = VDD = 5.5 V
−120
−430
−170
−600
+1
μA
μA
μA
WDI = 0 V, VDD = 5.5 V
MR = 0 V, VDD = 5.5 V
SENSE1, SENSE2 = 0 V
0.7 × VDD
−50
−1
The lowest supply voltage at which RESET becomes active. tr, VDD ≥ 15 μs/V.
Rev. 0 | Page 4 of 12
ADM13305
TIMING REQUIREMENTS
VDD = 2.7 V to 5.5 V, RL = 1 MΩ, CL = 50 pF, TA = 25°C.
Table 3. ADM13305-18, ADM13305-25 and ADM13305-33
Parameter
PULSE WIDTH (tw)
SENSEv
MR
WDI
Min
Typ
Max
6
100
100
Unit
Test Conditions/Comments
μs
ns
ns
VSENSEvL = VIT− − 0.3 V, VSENSEvH = VIT+ + 0.3 V
VIH = 0.7 × VDD, VIL = 0.3 × VDD
VIH = 0.7 × VDD, VIL = 0.3 × VDD
Table 4. ADM13305-4 and ADM13305-5
Parameter
PULSE WIDTH (tw)
SENSEv
MR
WDI
Min
Typ
Max
30
100
100
Unit
Test Conditions/Comments
μs
ns
ns
VSENSEvL = VIT− − 0.3 V, VSENSEvH = VIT+ + 0.3 V
VIH = 0.7 × VDD, VIL = 0.3 × VDD
VIH = 0.7 × VDD, VIL = 0.3 × VDD
SWITCHING CHARACTERISTICS
VDD = 2.7 V to 5.5 V, RL = 1 MΩ, CL = 50 pF, TA = 25°C.
Table 5. ADM13305-18, ADM13305-25 and ADM13305-33
Parameter
Watchdog Timeout (tt(OUT))
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)
1
Min
1.1
140
Typ
1.6
200
200
200
1
1
Max
2.3
280
500
500
5
5
Unit
sec
ms
ns
ns
μs
μs
Test Conditions/Comments
VI(SENSEv) ≥ VIT+ + 0.2 V, MR ≥ 0.7 × VDD
VI(SENSEv) ≥ VIT+ + 0.2 V, MR ≥ 0.7 × VDD
VI(SENSEv) ≥ VIT+ + 0.2 V, VIH ≥ 0.7 × VDD, VIL ≥ 0.3 × VDD
VI(SENSEv) ≥ VIT+ + 0.2 V, VIH ≥ 0.7 × VDD, VIL ≥ 0.3 × VDD
VIH = VIT+ + 0.3 V, VIL = VIT− − 0.3 V, MR ≥ 0.7 × VDD
VIH = VIT+ + 0.3 V, VIL = VIT− − 0.3 V, MR ≥ 0.7 × VDD
Min
1.1
140
Typ
1.6
200
200
200
30
30
Max
2.3
280
500
500
Unit
sec
ms
ns
ns
μs
μs
Test Conditions/Comments
VI(SENSEv) ≥ VIT+ + 0.2 V, MR ≥ 0.7 × VDD
VI(SENSEv) ≥ VIT+ + 0.2 V, MR ≥ 0.7 × VDD
VI(SENSEv) ≥ VIT+ + 0.2 V, VIH ≥ 0.7 × VDD, VIL ≥ 0.3 × VDD
VI(SENSEv) ≥ VIT+ + 0.2 V, VIH ≥ 0.7 × VDD, VIL ≥ 0.3 × VDD
VIH = VIT+ + 0.3 V, VIL = VIT− − 0.3 V, MR ≥ 0.7 × VDD
VIH = VIT+ + 0.3 V, VIL = VIT− − 0.3 V, MR ≥ 0.7 × VDD
The reset timeout delay of 200 ms masks the propagation delay.
Table 6. ADM13305-4 and ADM13305-5
Parameter
Watchdog Timeout (tt(out))
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)
1
The reset timeout delay of 200 ms masks the propagation delay.
FUNCTIONAL TRUTH TABLE
Table 7.
MR
SENSE1 > VIT1
SENSE2 > VIT2
RESET
RESET
L
H
H
H
H
X1
0
0
1
1
X1
0
1
0
1
L
L
L
L
H
H
H
H
H
L
1
X = don’t care.
Rev. 0 | Page 5 of 12
ADM13305
ABSOLUTE MAXIMUM RATINGS
Table 8.
Parameter
Supply Voltage Range, VDD
MR , WDI
SENSE1, SENSE2
RESET, RESET
Maximum Low Output Current
Maximum High Output Current
Input Clamp Current (VI < 0 V, VI > VDD)
Output Clamp Current (VO < 0 V, VO > VDD)
Operating Temperature Range
Storage Temperature Range
Lead Temperature
Soldering (10 sec)
Vapor Phase (60 sec)
Infrared (15 sec)
Rating
−0.3 V to +6 V
−0.3 V to VDD + 0.3 V
(VDD + 0.3 V)VIT/VREF
−0.3 V to +6 V
5 mA
−5 mA
±20 mA
±20 mA
−40°C to +85°C
−65°C to +150°C
300°C
215°C
220°C
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
THERMAL RESISTANCE
Table 9.
Package Type
8-Lead SOIC_N (R-8)
ESD CAUTION
Rev. 0 | Page 6 of 12
θJA
206
Unit
°C/W
ADM13305
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
SENSE1 1
SENSE2 2
ADM13305
8
VDD
7
MR
6 RESET
TOP VIEW
GND 4 (Not to Scale) 5 RESET
06922-003
WDI 3
Figure 3. Pin Configuration
Table 10. Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
Mnemonic
SENSE1
SENSE2
WDI
GND
RESET
RESET
MR
VDD
Description
Sense Input Voltage 1.
Sense Input Voltage 2.
Watchdog Timer Input.
Ground.
Active-Low Reset Output.
Active-High Reset Output.
Manual Reset Input.
Supply Voltage.
Rev. 0 | Page 7 of 12
ADM13305
TYPICAL PERFORMANCE CHARACTERISTICS
0.5999
0.5997
0.5995
0.5993
0.5991
0.5989
TA = 25°C
VDD = 2V
0.5987
MR = OPEN
0.5985
–40
–20
0
20
40
60
MR = OPEN
8
7
6
5
4
3
2
1
0
80
VDD = 5.5V
9
06922-007
MINIMUM PULSE DURATION AT SENSE, tW (µs)
10
0.6001
06922-004
0
100
200
FREE AIR TEMPERATURE, TA (°C)
Figure 4. Sense Threshold Voltage vs. Free Air Temperature at VDD
600
700
800
900
1000
20
15
10
5
0
SENSEv = 5.5V
MR = OPEN
TA = 25°C
–0.5
0
0.5
2.0
3.0
4.0
5.0
6.0
6.5
1.5
2.5
3.5
4.5
5.5
SUPPLY VOLTAGE, VDD (V)
MR = OPEN
38
37
36
35
34
33
32
31
30
1.0
VDD = 5.5V
39
06922-017
MINIMUM PULSE DURATION AT SENSE, tW (µs)
25
06922-005
SUPPLY CURRENT, IDD (µA)
30
–5
0
100
200
300
400
500
600
700
800
900
1000
SENSE THRESHOLD OVERDRIVE (mV)
Figure 5. Supply Current vs. Supply Voltage
Figure 8. ADM13305-4 and ADM13305-5 Minimum Pulse Duration at SENSE
vs. Sense Threshold Overdrive
2.50
HIGH LEVEL OUTPUT VOLTAGE, VOH (V)
200
100
0
–100
–200
–300
–400
–500
–600
–700
VDD = 5.5V
TA = 25°C
–900
–1.0
7.0
0
1.0
2.0
3.0
4.0
5.0
6.0
–0.5
0.5
1.5
2.5
3.5
4.5
5.5
6.5
INPUT VOLTAGE AT MR, VI (V)
06922-006
INPUT CURRENT, II (µA)
500
40
35
–800
400
Figure 7. ADM13305-18, ADM13305-25 and ADM13305-33 Minimum Pulse
Duration at SENSE vs. Sense Threshold Overdrive
40
–10
–1.0
300
SENSE THRESHOLD OVERDRIVE (mV)
2.00
1.50
1.00
–40°C
0°C
+25°C
+85°C
0.50
VDD = 2V
MR = OPEN
0
0
–1
–2
–3
–4
–5
06922-008
INPUT THRESHOLD VOLTAGE, VIT (V)
0.6003
–6
HIGH LEVEL OUTPUT CURRENT, IOH (mA)
Figure 9. High Level Output Voltage vs. High Level Output Current
Figure 6. Input Current vs. Input Voltage at MR
Rev. 0 | Page 8 of 12
ADM13305
1.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
VDD = 5.5V
MR = OPEN
0.5
0
0
–10
–20
–30
–40
–50
HIGH LEVEL OUTPUT CURRENT, IOH (mA)
0.15
0.10
0.05
VDD = 2V
MR = OPEN
1
2
3
4
5
06922-010
LOW LEVEL OUTPUT VOLTAGE, VOL (V)
–40°C
0°C
+25°C
+85°C
0
0.6
0.5
0.4
0.3
0.2
VDD = 5.5V
MR = OPEN
0.1
0
5
10
15
20
25
30
35
40
45
50
55
60
Figure 12. Low Level Output Voltage vs. Low Level Output Current
0.25
0
0.7
LOW LEVEL OUTPUT CURRENT, IOL (mA)
Figure 10. High Level Output Voltage vs. High Level Output Current
0.20
0.8
0
–60
–40°C
0°C
+25°C
+85°C
0.9
06922-016
5.0
LOW LEVEL OUTPUT VOLTAGE, VOL (V)
–40°C
0°C
+25°C
+85°C
5.5
06922-009
HIGH LEVEL OUTPUT VOLTAGE, VOH (V)
6.0
6
LOW LEVEL OUTPUT CURRENT, IOL (mA)
Figure 11. Low Level Output Voltage vs. Low Level Output Current
Rev. 0 | Page 9 of 12
ADM13305
THEORY OF OPERATION
SENSEv
The ADM13305 is a dual voltage supervisor designed to
monitor two supplies and provide a reset signal to DSP and
microprocessor-based systems.
V(NOM)
VIT–
t
RESET
1
The ADM13305-18, ADM13305-25, and ADM13305-33 have
two internally fixed thresholds, while the ADM13305-4 and
ADM13305-5 offer one internally fixed threshold and one
externally programmable threshold via a resistor string. See
the Ordering Guide for a list of all available options.
INPUT CONFIGURATION
The ADM13305 is powered through VDD. To increase noise
immunity in noisy applications, place a 0.1 μF capacitor
between the VDD input and ground.
The SENSEv inputs are resistant to short power supply glitches.
Do not allow an unused SENSEv input to float or to be grounded,
instead connect it to a supply voltage greater than its specified
threshold voltage.
Typically, the threshold voltage at each adjustable SENSEv input
is 0.6 V. To monitor a voltage greater than 0.6 V, connect a resistor
divider network to the device as depicted in Figure 13, where,
R1 + R2 ⎞
V MONITERED = 0.6 V⎛⎜
⎟
⎝ R2 ⎠
td
td
Figure 14. Reset Timing Diagram
Once the supplies monitored at the SENSEv pins rise above
their associated threshold level, the RESET signal remains low
for the reset timeout period before deasserting. Subsequently, if
either of the supplies monitored by the SENSEv pins falls below
its associated threshold the RESET output reasserts.
The ADM13305 features both an active-low, push-pull RESET
output and an active-high, push-pull RESET output.
WATCHDOG TIMER
The ADM13305 features a watchdog timer that monitors
microprocessor activity. A timer circuit is cleared with every
low-to-high or high-to-low logic transition on the watchdog
input pin (WDI). If the timer counts through the preset
watchdog timeout period of 1.6 sec, RESET is asserted, as
shown in Figure 15.
The microprocessor is required to toggle the WDI pin to avoid
being reset. Therefore, failure of the microprocessor to toggle
WDI within the timeout period indicates a code execution error
and the reset pulse generated restarts the microprocessor in a
known state. The watchdog timer can be disabled by leaving
WDI floating.
MONITORED VOLTAGE
R1
06922-012
R2
WDI
1
Figure 13. Setting the Adjustable Monitor
tWD
RESET OUTPUT
The reset outputs are guaranteed to be in the correct state for
VDD down to 1.1 V. During power-up, RESET is asserted when
the supply voltage becomes greater than 1.1 V.
t
0
RESET
1
t
0
td
Figure 15. Watchdog Timing Diagram
Rev. 0 | Page 10 of 12
06922-014
VREF = 0.6V
t
0
06922-013
There are five models available, all of which feature a combination of internally pretrimmed undervoltage threshold options
for monitoring 1.8 V, 2.5 V, 3.3 V, and 5 V supplies. There is also
an adjustable input option with an undervoltage threshold of 0.6 V.
ADM13305
MR
MANUAL RESET (MR)
1
t
0
RESET
1
t
0
td
Figure 16. Manual Reset Timing Diagram
Rev. 0 | Page 11 of 12
06922-015
The ADM13305 features a manual reset input, which when driven
low, asserts the reset output, as shown in Figure 16. When MR
transitions from low to high, reset remains asserted for the
duration of the reset active timeout period before deasserting.
An external push-button switch can be connected between MR
and ground to allow the user to generate a reset.
ADM13305
OUTLINE DIMENSIONS
5.00 (0.1968)
4.80 (0.1890)
8
1
5
6.20 (0.2441)
5.80 (0.2284)
4
1.27 (0.0500)
BSC
0.25 (0.0098)
0.10 (0.0040)
COPLANARITY
0.10
SEATING
PLANE
1.75 (0.0688)
1.35 (0.0532)
0.51 (0.0201)
0.31 (0.0122)
0.50 (0.0196)
0.25 (0.0099)
45°
8°
0°
0.25 (0.0098)
0.17 (0.0067)
1.27 (0.0500)
0.40 (0.0157)
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.
012407-A
4.00 (0.1574)
3.80 (0.1497)
Figure 17. 8-Lead Standard Small Outline Package [SOIC_N]
Narrow Body
(R-8)
Dimensions shown in millimeters and (inches)
ORDERING GUIDE
Model
ADM13305-18ARZ 1
ADM13305-18ARZ-RL71
ADM13305-25ARZ1
ADM13305-25ARZ-RL71
ADM13305-33ARZ1
ADM13305-33ARZ-RL71
ADM13305-4ARZ1
ADM13305-4ARZ-RL71
ADM13305-5ARZ1
ADM13305-5ARZ-RL71
1
2
Nominal Supervised
Voltage
SENSE1
SENSE2
3.3 V
1.8 V
3.3 V
1.8 V
3.3 V
2.5 V
3.3 V
2.5 V
5V
3.3 V
5V
3.3 V
3.3 V
Adjustable 2
3.3 V
Adjustable2
2.5 V
Adjustable2
2.5 V
Adjustable2
Threshold Voltage
(Typical)
SENSE1
SENSE2
2.93 V
1.68 V
2.93 V
1.68 V
2.93 V
2.25 V
2.93 V
2.25 V
4.55 V
2.93 V
4.55 V
2.93 V
2.93 V
0.6 V
2.93 V
0.6 V
2.25 V
0.6 V
2.25 V
0.6 V
Z = RoHS Compliant Part.
0.6 V adjustable. External resistor divider determines the actual sense voltage.
©2007 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D06922-0-8/07(0)
Rev. 0 | Page 12 of 12
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
Package
Option
R-8
R-8
R-8
R-8
R-8
R-8
R-8
R-8
R-8
R-8