ALSC ASM1233D-15F Low power, 5v/3.3v, up reset, active low, open-drain output Datasheet

ASM1233D-L/D/M
March 2005
rev 1.3
Low Power, 5V/3.3V, µP Reset, Active LOW, Open-Drain Output
General Description
Applications
The ASM1233D-L/1233D/1233M are voltage supervisors with
•
Set-top boxes
low-power, 5/3.3V µP Reset, with an active LOW, open-drain
•
Cellular phones
output. Maximum supply current over temperature is 15µA for
•
PDAs
3.3V devices and 20µA for 5V devices.
•
Energy management systems
•
Embedded control systems
The ASM1233D-L/1233D/1233M generates an active LOW
•
Printers
reset signal whenever the monitored supply is out of tolerance.
•
Single board computers
A precision reference and comparator circuit monitors power
supply (VCC) level. The tolerance are 5%,10% and 15%. When
Typical Operating Circuit
an out-of-tolerance condition is detected, an internal power-fail
signal is generated which forces an active LOW reset signal.
VCC
ASM1233D-L/D/M
After VCC returns to an in-tolerance condition, the reset signal
remains active for 350ms to allow the power supply and system
microprocessor to stabilize.
The ASM1233D-L/1233D/1233M is designed with an opendrain output stage and operates over the extended industrial
temperature range. These devices are available in compact
SOT-223, SO-8 and TO-92 packages.
Microprocessor
RESET
RESET
GND
Other low power products in this family include ASM1810/11/
12/15/16/17.
Block Diagram
VCC
Key Features
•
Low Supply Current
• 15µA maximum (<=3.6V), 20µA maximum (5.5V)
•
Automatically restarts a microprocessor after power failure
•
350ms reset delay after VCC returns to an in-tolerance condition
•
Active LOW power-up reset, 5kΩ internal pull-up
•
Precision temperature-compensated voltage reference and
•
Eliminates external components
•
Low-cost SOT-223/SO-8/TO-92 packages
•
Operating temperature: -40°C to +85°C
ASM1233D-L,ASM1233D,ASM1233M
5.0kΩ
Supply
Tolerance
Bias
+
comparator
-
RESET
Delay
350ms
Typical
Reference
GND
Alliance Semiconductor
2575 Augustine Drive . Santa Clara, CA 95054 . Tel: 408.855.4900 . Fax: 408.855.4999 . www.alsc.com
Notice: The information in this document is subject to change without notice
ASM1233D-L/D/M
March 2005
rev 1.3
Pin Configuration
GND
4
VCC
3
SO-8
1
RESET
1
VCC
2
NC
3
GND
4
GND
TO-92
ASM1233M
2
ASM1233D
RESET
ASM1233D-L
SOT-223
8
NC
7
NC
6
NC
5
NC
ASM1233D-L
ASM1233D
ASM1233M
1
2
3
Pin Description
Pin#
TO-92
ASM1233D-L
ASM1233D
TO-92
ASM1233M
SO-8
SOT-223
1
3
4
1,4
GND
2
1
1
2
RESET
3
2
2
3
VCC
Power supply input.
-
-
3,5,6,7&8
-
NC
No connection
Pin Name
Description
Ground.
Active LOW reset output.
Low Power, 5V/3.3V, µP Reset, Active LOW, Open-Drain Output
Notice: The information in this document is subject to change without notice
2 of 11
ASM1233D-L/D/M
March 2005
rev 1.3
Application Information
tF
VCC
Operation - Power Monitor
VHTL
The ASM1233D-L/1233D/1233M detects out-of-tolerance
VCCTP
power supply conditions. It resets a processor during power-
VLTL
up, power-down and generates a reset to the system
the reset threshold. When an out-of-tolerance VCC voltage is
detected, the RESET signal is asserted. On power-up,
tRPD
RESET
~
~
processor when the monitored power supply voltage is below
RESET is kept active (LOW) for approximately 350ms after
the power supply voltage has reached the selected tolerance.
This allows the power supply and microprocessor to stabilize
before RESET is released.
VOL
tR
Figure 2: Timing Diagram: Power-Down
VHTL
VLTL
~
VCC
VCCTP
tRPU
VOH
~
RESET
Figure 1: Timing Diagram: Power-Up
Low Power, 5V/3.3V, µP Reset, Active LOW, Open-Drain Output
Notice: The information in this document is subject to change without notice
3 of 11
ASM1233D-L/D/M
March 2005
rev 1.3
Absolute Maximum Ratings
Parameter
Min
Max
Unit
Voltage on VCC
-0.5
7
V
Voltage on RESET
-0.5
VCC + 0.5
V
Operating Temperature Range
-40
85
°C
260
°C
125
°C
2
200
KV
V
Soldering Temperature (for 10 sec)
Storage Temperature
-55
ESD rating
HBM
MM
NOTE: These are stress ratings only and functional use is not implied. Exposure to absolute maximum ratings for prolonged
periods of time may affect device reliability.
Low Power, 5V/3.3V, µP Reset, Active LOW, Open-Drain Output
Notice: The information in this document is subject to change without notice
4 of 11
ASM1233D-L/D/M
March 2005
rev 1.3
Electrical Characteristics
Unless otherwise noted, VCC = 5V+10% and specifications are over the operating temperature range of -40°C to +85°C.
All voltages are referenced to ground.
Parameter
Symbol
Conditions
VCC
Supply Voltage
RESET asserted
VOH
Output Current
IOL
Operating Current
ICC
VCC Trip Point
VCCTP
Voltage High Trip Level
Voltage Low Trip Level
Internal Pull-up Resistor
VHTL
VLTL
COUT
VCC Detect to RESET Low
tRPD
VCC Detect to RESET High
tRPU
VCC Slew Rate
(VHTL - VLTL)
VCC Slew Rate
(VLTL - VHTL)
-
-
IOUT < 500 µA
VCC-0.5V
VCC-0.1V
Output = 0.4V
8
Max
Unit
5.5
V
0.4
V
mA
VCC < 5.5V, RESET output open
8
20
VCC < =3.6V, RESET output open
6
15
µA
ASM1233D-LZ-5
2.98
3.06
3.15
ASM1233D-LZ-10
2.8
2.88
2.97
ASM1233D-LZ-15
2.64
2.72
2.8
ASM1233DZ-5
4.5
4.625
4.74
ASM1233DZ-10
4.25
4.375
4.49
ASM1233DZ-15
4.0
4.125
4.24
ASM1233M-5
4.25
4.375
4.49
ASM1233M-55
4.5
4.625
4.75
ASM1233M-3
2.64
2.72
2.8
ASM1233D, ASM1233MS-5,
ASM1233MS-55
4.75
ASM1233MS-3
3.14
ASM1233D-L
3.06
ASM1233D, ASM1233MS-5,
ASM1233MS-55
4.00
ASM1233MS-3
2.48
ASM1233D-L
2.3
RP
Output Capacitance
Typ
1.2
VOL
Output Voltage
Min
3.5
5.0
V
V
V
7.5
kΩ
10
pF
2
10
µs
ASM1233D-L, ASM1233M
200
350
500
ASM1233D
250
350
450
ms
tF
300
µs
tR
0
ns
Note: A 1kΩ resistor maybe required in some applications for proper operation of the microprocessor reset control circuit.
Low Power, 5V/3.3V, µP Reset, Active LOW, Open-Drain Output
Notice: The information in this document is subject to change without notice
5 of 11
ASM1233D-L/D/M
March 2005
rev 1.3
Family Selection Guide
Part #
RESET Voltage (V)
RESET Time
(ms)
Output Stage
RESET Polarity
ASM1810
4.620, 4.370, 4.120
150
Push-Pull
LOW
ASM1811
4.620, 4.350, 4.130
150
Open-Drain
LOW
ASM1812
4.620, 4.350, 4.130
150
Push-Pull
HIGH
ASM1815
3.060, 2.880, 2.550
150
Push-Pull
LOW
ASM1816
3.060, 2.880, 2.550
150
Open-Drain
LOW
ASM1817
3.060, 2.880, 2.550
150
Push-Pull
HIGH
ASM1233D
4.625, 4.375, 4.125
350
Open-Drain
LOW
ASM1233M
4.625, 4.375, 2.720
350
Open-Drain
LOW
ASM1233D-L
3.06, 2.880, 2.720
350
Open-Drain
LOW
Low Power, 5V/3.3V, µP Reset, Active LOW, Open-Drain Output
Notice: The information in this document is subject to change without notice
6 of 11
ASM1233D-L/D/M
March 2005
rev 1.3
Package Information
SOT-223
Dimensions in Inches
Dimensions in millimeters
Symbol
Min
Max
Min
Max
A
0.061
0.071
1.55
1.80
A1
0.0008
0.004
0.02
0.10
B
0.024
0.031
0.60
0.80
B1
0.114
0.122
2.90
3.10
C
0.009
0.013
0.24
0.32
D
0.248
0.264
6.30
6.70
E
0.130
0.146
3.30
e
0.090BSC
e1
H
0.181 BSC
0.264
3.70
2.30 BSC
4.60 BSC
0.287
6.70
7.30
L
0.036 MIN
0.91 MIN
L2
0.0024 MIN
0.06 BSC
α
0°
6°
0°
6°
Low Power, 5V/3.3V, µP Reset, Active LOW, Open-Drain Output
Notice: The information in this document is subject to change without notice
7 of 11
ASM1233D-L/D/M
March 2005
rev 1.3
Plastic SO-8 (8-Pin)
H
E
D
A2
A
C
A1
D
θ
e
L
B
Dimensions in Inches
Min
Max
Dimensions in Millimeters
Min
Max
Plastic SO-8 (8-Pin)
A
0.053
0.069
1.35
1.75
A1
0.004
0.010
0.10
0.25
A2
0.049
0.059
1.25
1.50
B
0.012
0.020
0.31
0.51
C
0.007
0.010
0.18
0.25
D
0.193 BSC
4.90 BSC
E
0.154 BSC
3.91 BSC
e
0.050 BSC
1.27 BSC
H
0.236 BSC
6.00 BSC
L
0.016
0.050
0.41
1.27
θ
0°
8°
0°
8°
Low Power, 5V/3.3V, µP Reset, Active LOW, Open-Drain Output
Notice: The information in this document is subject to change without notice
8 of 11
ASM1233D-L/D/M
March 2005
rev 1.3
To-92 (3-Pin)
Dimensions in Inches
Min
Max
Dimensions in Millimeters
Min
Max
TO-92
A
0.175
0.185
4.445
4.699
b
0.016
0.020
0.406
0.508
C
0.014
0.016
0.356
0.406
φD
0.175
0.185
4.445
4.699
E
0.138
0.144
3.505
3.658
e
0.098
0.102
2.489
2.591
e1
0.045
0.055
1.143
1.397
j
0.168
0.174
4.269
4.420
L
0.500
0.585
12.7
14.86
s
0.095
0.099
2.413
2.515
Low Power, 5V/3.3V, µP Reset, Active LOW, Open-Drain Output
Notice: The information in this document is subject to change without notice
9 of 11
ASM1233D-L/D/M
March 2005
rev 1.3
Ordering Information
RESET
Output
Voltage
Part Number**
TIN - LEAD DEVICES
ASM1233D-L-5
ASM1233D-L-10
ASM1233D-L-15
ASM1233D-LZ-5
ASM1233D-LZ-10
ASM1233D-LZ-15
ASM1233D-5
ASM1233D-10
ASM1233D-15
ASM1233DZ-5
ASM1233DZ-10
ASM1233DZ-15
RESET
Time
Open
Drain
Output
Stage*
RESET
Polarity
Package
Package Marking
350 ms
350 ms
350 ms
350 ms
350 ms
350 ms
350 ms
350 ms
350 ms
350 ms
350 ms
350 ms
‹
‹
‹
‹
‹
‹
‹
‹
‹
‹
‹
‹
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
3L TO-92
3L TO-92
3L TO-92
4L SOT-223
4L SOT-223
4L SOT-223
3L TO-92
3L TO-92
3L TO-92
4L SOT-223
4L SOT-223
4L SOT-223
ASM1233D-L-5
ASM1233D-L-10
ASM1233D-L-15
RVLL
RWLL
RXLL
ASM1233D-5
ASM1233D-10
ASM1233D-15
RSLL
RTLL
RULL
350 ms
‹
LOW
3L TO-92
ASM1233M-55
ASM1233M-55
4.625
5%
10%
15%
5%
10%
15%
5%
10%
15%
5%
10%
15%
5%
ASM1233M-5
4.375
10%
350 ms
‹
LOW
3L TO-92
ASM1233M-5
ASM1233M-3
2.72
15%
350 ms
‹
LOW
3L TO-92
ASM1233M-3
ASM1233MS-55
4.625
5%
350 ms
‹
LOW
8L SOIC
ASM1233MS-55
ASM1233MS-5
4.38
10%
350 ms
‹
LOW
8L SOIC
ASM1233MS-5
2.72
15%
350 ms
‹
LOW
8L SOIC
ASM1233MS-3
3.06
2.88
2.72
3.06
2.88
2.72
4.625
4.375
4.125
4.625
4.375
4.125
350 ms
350 ms
350 ms
350 ms
350 ms
350 ms
350 ms
350 ms
350 ms
350 ms
350 ms
350 ms
‹
‹
‹
‹
‹
‹
‹
‹
‹
‹
‹
‹
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
3L TO-92
3L TO-92
3L TO-92
4L SOT-223
4L SOT-223
4L SOT-223
3L TO-92
3L TO-92
3L TO-92
4L SOT-223
4L SOT-223
4L SOT-223
ASM1233D-L-5F
ASM1233D-L-10F
ASM1233D-L-15F
KVLL
KWLL
KXLL
ASM1233D-5F
ASM1233D-10F
ASM1233D-15F
KSLL
KTLL
KULL
350 ms
‹
LOW
3L TO-92
ASM1233M-5F
ASM1233MS-3
LEAD FREE DEVICES
ASM1233D-L-5F
ASM1233D-L-10F
ASM1233D-L-15F
ASM1233D-LZ-5F
ASM1233D-LZ-10F
ASM1233D-LZ-15F
ASM1233D-5F
ASM1233D-10F
ASM1233D-15F
ASM1233DZ-5F
ASM1233DZ-10F
ASM1233DZ-15F
3.06
2.88
2.72
3.06
2.88
2.72
4.625
4.375
4.125
4.625
4.375
4.125
RESET
Tolerance
ASM1233M-5F
4.375
5%
10%
15%
5%
10%
15%
5%
10%
15%
5%
10%
15%
5%
ASM1233M-55F
4.625
10%
350 ms
‹
LOW
3L TO-92
ASM1233M-55F
ASM1233M-3F
2.72
15%
350 ms
‹
LOW
3L TO-92
ASM1233M-3F
ASM1233MS-5F
4.38
5%
350 ms
‹
LOW
8L SOIC
ASM1233MS-5F
4.625
10%
350 ms
‹
LOW
8L SOIC
ASM1233MS-55F
2.72
15%
350 ms
‹
LOW
8L SOIC
ASM1233MS-3F
ASM1233MS-55F
ASM1233MS-3F
Low Power, 5V/3.3V, µP Reset, Active LOW, Open-Drain Output
Notice: The information in this document is subject to change without notice
10 of 11
ASM1233D-L/D/M
Alliance Semiconductor Corporation
2575, Augustine Drive,
Santa Clara, CA 95054
Tel: 408 - 855 - 4900
Fax: 408 - 855 - 4999
www.alsc.com
Copyright © Alliance Semiconductor
All Rights Reserved
Part Number: ASM1233D-L/D/M
Document Version: 1.3
© Copyright 2003 Alliance Semiconductor Corporation. All rights reserved. Our three-point logo, our name and Intelliwatt are trademarks or
registered trademarks of Alliance. All other brand and product names may be the trademarks of their respective companies. Alliance reserves the
right to make changes to this document and its products at any time without notice. Alliance assumes no responsibility for any errors that may
appear in this document. The data contained herein represents Alliance's best data and/or estimates at the time of issuance. Alliance reserves the
right to change or correct this data at any time, without notice. If the product described herein is under development, significant changes to these
specifications are possible. The information in this product data sheet is intended to be general descriptive information for potential customers and
users, and is not intended to operate as, or provide, any guarantee or warrantee to any user or customer. Alliance does not assume any responsibility
or liability arising out of the application or use of any product described herein, and disclaims any express or implied warranties related to the sale
and/or use of Alliance products including liability or warranties related to fitness for a particular purpose, merchantability, or infringement of any
intellectual property rights, except as express agreed to in Alliance's Terms and Conditions of Sale (which are available from Alliance). All sales of
Alliance products are made exclusively according to Alliance's Terms and Conditions of Sale. The purchase of products from Alliance does not
convey a license under any patent rights, copyrights; mask works rights, trademarks, or any other intellectual property rights of Alliance or third
parties. Alliance does not authorize its products for use as critical components in life-supporting systems where a malfunction or failure may
reasonably be expected to result in significant injury to the user, and the inclusion of Alliance products in such life-supporting systems implies that
the manufacturer assumes all risk of such use and agrees to indemnify Alliance against all claims arising from such use.
Similar pages