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PDF ADM6305 Data sheet ( Hoja de datos )
| Número de pieza | ADM6305 | |
| Descripción | Multiple Input Programmable Supervisory ICs | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Data Sheet
FEATURES
Adjustable input threshold voltage options: 0.4 V and 1.23 V
Pre-trimmed VCC threshold options (ADM6306)
Increments between 2.5 V and 5 V
Manual reset input (ADM6306)
4 factory programmed reset timeout delays
1 ms, 20 ms, 140 ms, and 1.12 sec (minimum)
Reset output stage: active low, open drain
Low power consumption: 5 µA typical
Power supply glitch immunity
5-lead SOT-23 package
Temperature range: −40°C to +125°C
APPLICATIONS
Portable/battery-operated equipment
Microprocessor systems
Multivoltage applications
GENERAL DESCRIPTION
The ADM6305/ADM6306 are dual voltage supervisors
designed to monitor two supplies and provide a reset signal to
DSP- and microprocessor-based systems. Low supply current
and a small form factor make these devices suitable for portable
and battery-operated applications.
If a monitored power supply voltage falls below the minimum
voltage threshold, a single active low output asserts triggering a
system reset. Once all voltages rise above the selected threshold
level, the reset signal remains low for the reset timeout period.
Four reset timeout options are available.
The ADM6305 monitors two supplies via two adjustable
resistor-programmable undervoltage reset inputs. Both RST
IN1 and RST IN2 have a reset threshold of either 0.4 V or
1.23 V depending on the particular model; that is, the RST IN1
and RST IN2 threshold of the ADM6305DxARJZ model is
Multiple Input Programmable
Supervisory ICs
ADM6305/ADM6306
FUNCTIONAL BLOCK DIAGRAMS
VCC
RST IN1
RST IN2
0.4V/1.23V
RESET
GENERATOR
RESET
0.4V/1.23V
ADM6305
GND
Figure 1.
VCC
RST IN
1.23V
0.4V/1.23V
VCC
MR
GLITCH
REJECTION
RESET
GENERATOR
RESET
ADM6306
GND
Figure 2.
1.23 V, while in the case of ADM6305DxARJZ1 model, it is
0.4 V. The VCC input of the ADM6305 is not a monitored input.
The ADM6306 has one adjustable undervoltage reset input,
RST IN, which features a choice of reset threshold, 0.4 V or
1.23 V (see the Ordering Guide for more information). The
ADM6306 incorporates a variety of internally pretrimmed VCC
undervoltage threshold options for monitoring supply voltages
in increments between 2.5 V and 5 V. The ADM6306 also
includes a manual reset input.
The ADM6305/ADM6306 RESET output remains valid as long
as VCC exceeds 0.9 V.
The ADM6305/ADM6306 are available in a 5-lead SOT-23
package. These devices are specified over the temperature range
of −40°C to +125°C.
Rev. B
Document Feedback
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 ©2010–2014 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
1 page  
Data Sheet
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
ADM6305/ADM6306
RESET 1
5 VCC
ADM6305
GND 2 TOP VIEW
(Not to Scale)
RST IN1 3
4 RST IN2
Figure 3. ADM6305 Pin Configuration
Table 4. ADM6305 Pin Function Descriptions
Pin No. Mnemonic Description
1
RESET
Active Low, Open-Drain RESET Output.
2 GND
Ground.
3
RST IN1
Adjustable Reset Comparator Input. This pin asserts RESET if the input voltage is below threshold. Its high input
impedance allows the use of an external resistor divider to program the monitoring threshold. Connect this pin to
VCC if it is not used.
4
RST IN2
Adjustable Reset Comparator Input. This pin asserts RESET if the input voltage is below threshold. Its high input
impedance allows the use of an external resistor divider to program the monitoring threshold. Connect this pin to
VCC if it is not used.
5 VCC
Power Supply Input. VCC is not monitored on the ADM6305.
RESET 1
5 VCC
ADM6306
GND 2 TOP VIEW
(Not to Scale)
MR 3
4 RST IN
Figure 4. ADM6306 Pin Configuration
Table 5. ADM6306 Pin Function Descriptions
Pin No. Mnemonic Description
1
RESET
Active Low, Open-Drain RESET Output.
2 GND
Ground.
3 MR
Manual Reset Input.
4
RST IN
Adjustable Reset Comparator Input. This pin asserts RESET if the input voltage is below threshold. Its high input
impedance allows the use of an external resistor divider to program the monitoring threshold. Connect this pin to
VCC if it is not used.
5 VCC
Power Supply Input. VCC is monitored on the ADM6306.
Rev. B | Page 5 of 12
5 Page 
Data Sheet
OUTLINE DIMENSIONS
ADM6305/ADM6306
3.00
2.90
2.80
1.70
1.60
1.50
54
123
3.00
2.80
2.60
1.30
1.15
0.90
0.15 MAX
0.05 MIN
1.90
BSC
0.95 BSC
1.45 MAX
0.95 MIN
0.20 MAX
0.08 MIN
0.50 MAX
0.35 MIN
SEATING
PLANE
10°
5° 0.60
0° BSC
0.55
0.45
0.35
COMPLIANT TO JEDEC STANDARDS MO-178-AA
Figure 18. 5-Lead Small Outline Transistor Package [SOT-23]
(RJ-5)
Dimensions shown in millimeters
ROUND SPROCKET HOLES
PIN 1 MARKER
DIRECTION OF FEED
Figure 19. ADM6305/ADM6306 Reel Orientation
ORDERING GUIDE
Model1, 2, 3
ADM6305D3ARJZ-RL7
ADM6305D3ARJZ1-RL7
ADM6306D131ARJZ-R7
ADM6306D131ARJZ1R7
ADM6306D329ARJZ-R7
ADM6306D330ARJZ-R7
ADM6306D331ARJZ-R7
ADM6306D331ARJZ1R7
ADM6306D344ARJZ-R7
ADM6306D346ARJZ-R7
Temperature Range
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
Ordering Quantity4
3,000
3,000
3,000
3,000
3,000
3,000
3,000
3,000
3,000
3,000
Package Description
5-Lead SOT-23
5-Lead SOT-23
5-Lead SOT-23
5-Lead SOT-23
5-Lead SOT-23
5-Lead SOT-23
5-Lead SOT-23
5-Lead SOT-23
5-Lead SOT-23
5-Lead SOT-23
Package Option
RJ-5
RJ-5
RJ-5
RJ-5
RJ-5
RJ-5
RJ-5
RJ-5
RJ-5
RJ-5
Branding
LG9
LG8
LGA
LGC
LLY
LM0
LG6
LQC
LM1
LLZ
1 ADM6305 and ADM6306 follow the C2 Pin 1 orientation standard for tape and reel packaging (see Figure 19).
2 If ordering nonstandard models, complete the ordering code shown in Figure 16 and Figure 17 by inserting the reset threshold, reset timeout, and adjustable
threshold suffixes. Contact Sales for availability of nonstandard models, quoting ADM6305-NTSD or ADM6306-NTSD first, and then the complete ordering code.
3 Z = RoHS Compliant Part.
4 A minimum of 10,000 must be ordered for nonstandard models.
Rev. B | Page 11 of 12
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet ADM6305.PDF ] | |
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