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PDF ADM6384 Data sheet ( Hoja de datos )
| Número de pieza | ADM6384 | |
| Descripción | Microprocessor Supervisory Circuit | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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FEATURES
Precision power supply monitoring
31 reset threshold options
1.58 V to 5.0 V
Four reset timeouts
1 ms, 20 ms, 140 ms, 1120 ms
Manual reset input
Reset output stage
Push-pull active-low
Guaranteed reset output valid to VCC = 1 V
Power supply glitch immunity
Specified over −40°C to +125°C temperature range
4-lead SC70 package
APPLICATIONS
Microprocessor systems
Computers
Controllers
Intelligent instruments
Portable equipment
GENERAL DESCRIPTION
The ADM6384 is a supervisory circuit that monitors power
supply voltage levels in microprocessor-based systems. A
power-on reset signal is generated when the supply voltage
rises to a preset threshold level. The debounced manual reset
input of the ADM6384 can be used to initiate a reset by means
of an external push-button or logic signal.
The part is available in a choice of 31 reset threshold options,
from 1.58 V to 5.0 V. The minimum reset timeout periods are
1 ms, 20 ms, 140 ms, and 1120 ms.
The ADM6384 is available in a 4-lead SC70 package and typi-
cally consumes only 7 μA, making it suitable for use in low
power, portable applications.
Microprocessor Supervisory
Circuit in 4-Lead SC70
ADM6384
FUNCTIONAL BLOCK DIAGRAMS
ADM6384
VCC
VREF
RESET
GENERATOR
RESET
MR DEBOUNCE
GND
Figure 1.
VCC
ADM6384
MR RESET
GND
VCC
μP
RESET
100kΩ
GND
Figure 2.
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 © 2005 Analog Devices, Inc. All rights reserved.
1 page  
ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 2.
Parameter
VCC
RESET
Output Current ( RESET)
Operating Temperature Range
Storage Temperature Range
Rating
−0.3 V to +6 V
−0.3 V to +6 V
20 mA
−40°C to +125°C
−65°C to +150°C
θJA Thermal Impedance, SC70
Soldering Temperature
Sn/Pb
Pb-Free
331°C/W
240°C, 30 sec
260°C, 40 sec
ADM6384
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.
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on
the human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degrada-
tion or loss of functionality.
Rev. 0 | Page 5 of 12
5 Page 
OUTLINE DIMENSIONS
2.20
1.35 1.80
1.15
4
3
2.40
1.80
12
PIN 1
0.65 BSC
0.50 BSC
1.00 1.10
0.80 0.80
0.40
0.10
12°
8°
0.10 MAX
SEATING
*0.70 PLANE
0.30 0.50
0.15
0.10 COPLANARITY
0.18
0.10
*PACKAGE OUTLINE CORRESPONDS IN FULL TO EIAJ SC82
EXCEPT FOR WIDTH OF PIN-2 AS SHOWN
0.30
0.10
Figure 14. 4-Lead Thin Shrink Small Outline Transistor Package [SC70]
(KS-4)
Dimensions shown in millimeters
ADM6384
ADM6384YKS_x _x D_x-RL7
GENERIC NUMBER
TEMPERATURE RANGE
Y: –40°C TO +125°C
PACKAGE CODE
KS: 4-LEAD SC70
Z: LEAD FREE
ORDERING QUANTITY
RL7: 3,000 PIECE REEL
RESET TIMEOUT PERIOD
1: 1ms (MIN)
2: 20ms (MIN)
3: 140s (MIN)
4: 1120s (MIN)
RESET THRESHOLD NUMBER
(16 TO 50)
Figure 15. Ordering Code Structure
ORDERING GUIDE
Standard Models1
ADM6384YKS29D1-RL7
ADM6384YKS23D3-RL7
ADM6384YKS29D3-RL7
Reset Threshold (V)
2.93
2.31
2.93
Reset Timeout (ms)
1
140
140
Temperature Range
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
Quantity
3k
3k
3k
Package Type
SC70-4
SC70-4
SC70-4
Branding
N0J
N0J
N0J
1 If ordering nonstandard models, complete the ordering code shown in Figure 15 by inserting reset timeout and reset threshold suffixes. Contact Sales for availability
of nonstandard models.
Rev. 0 | Page 11 of 12
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet ADM6384.PDF ] | |
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