ASM810TEUR [PULSECORE]
Power Supply Support Circuit, Fixed, 1 Channel, +3.08VV, PDSO3, PLASTIC, SOT-23, 3 PIN;
| 型号： | ASM810TEUR |
| 厂家： | 
PulseCore Semiconductor |
| 描述： | Power Supply Support Circuit, Fixed, 1 Channel, +3.08VV, PDSO3, PLASTIC, SOT-23, 3 PIN 光电二极管 |
| 文件： | 总12页 (文件大小：312K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ASM809,ASM8091,ASM810
July 2005
rev 1.8
3-Pin Microcontroller Power Supply Supervisor
Six voltage thresholds are available to support 3V to 5V
systems:
General Description
The ASM809/ASM8091/ASM810 are cost effective 3.0V, 3.3V
and 5.0V power supply supervisor circuits optimized for low-
power microprocessor (µP), microcontroller (µC) and digital
systems. They provide a reset output during power-up, power-
down and brown-out conditions. They provide excellent
reliability by eliminating external components and adjustments.
The ASM809/ASM8091/ASM810 are improved drop-in
replacements for the Maxim MAX809/810 and feature 60%
lower supply current.
RESET THRESHOLD
Suffix
Voltage (V)
4.63
L
M
J
4.38
4.00
T
S
R
3.08
2.93
A reset signal is issued if the power supply voltage drops below
a preset reset threshold and is asserted for at least 140mS after
the supply has risen above the reset threshold. The ASM809/
ASM8091 has an active-low RESET output that is guaranteed
to be in the correct logic state for VCC down to 1.1V. The
2.63
Features:
•
•
•
Monitor 5V, 3.3V and 3V supplies
140mS minimum reset pulse width
Active-low reset valid with 1.1V supply (ASM809/
ASM8091)
Small 3&5-pin SOT-23 Packages
No external components
ASM810 has an active-high RESET output. The reset
comparator is designed to ignore fast transients on VCC
.
Low supply current makes the ASM809/ASM8091/ASM810
ideal for use in portable and battery operated equipment. The
•
•
•
ASM809/ASM8091/ASM810 are available in
industry standard 3&5-pin SOT-23 Packages.
a compact,
Specified over full temperature range - -40°C to 105°C
Applications
Typical Operating Circuit
•
•
•
•
•
•
Embedded controllers
Portable/Battery operated systems
Intelligent instruments
Wireless communication systems
PDAs and handheld equipments
Computers
VCC
VCC
ASM809
ASM8091
(ASM810)
VCC
µP
RESET
Input
(RESET)
RESET
(RESET)
GND
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
ASM809,ASM8091,ASM810
July 2005
rev 1.8
Pin Diagram
3-SOT23
Block Diagram
5-SOT23
1
VCC
GND
+
-
1
2
5
4
NC
NC
RESET
RESET Generator
RESET
(RESET)
4.63V
4.38V
ASM809
(ASM810)
3
V
+
-
V
CC
CC
ASM8091
4.00V
3.08V
2.93V
2.63V
ASM809/8091
(ASM810)
2
RESET
(RESET)
GND
3
GND
Pin Description
Pin #
Pin
Name
Function
ASM8091
5-SOT 23
ASM809
3-SOT 23
ASM810
3
1
1
2
-
-
GND
Ground.
RESET is asserted LOW if VCC falls below VTH and remains LOW for
atleast 140mS (TRST) after VCC exceeds the threshold.
RESET
RESET is asserted HIGH if VCC falls below VTH and remains HIGH for
atleast 140mS (TRST) after VCC exceeds the threshold.
-
-
2
-
RESET
VCC
2
3
Power supply input voltage (3.0V, 3.3V, 5.0V).
Detailed Description
V
TH
5V
0V
A
proper reset input enables
a
microprocessor
/
V
CC
microcontroller to start in a known state. ASM809/ASM8091/
ASM810 assert reset to prevent code execution errors during
power-up, power-down and brown-out conditions.
T
RST
ASM809
5V
0V
RESET
RESET
ASM8091
Reset Timing
5V
0V
ASM810
The reset signal is asserted LOW for the ASM809,ASM8091
and HIGH for the ASM810 when the VCC supply voltage falls
below the threshold trip voltage and remains asserted for
140mS minimum after the VCC has risen above the
Figure 1: Reset TIming Diagram
threshold.
2 of 12
3-Pin Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
ASM809,ASM8091,ASM810
July 2005
rev 1.8
Bidirectional Reset Pin Interfacing
Application Information
The ASM809/ASM8091/ASM810 can interface with µP / µC
bi-directional reset pins by connecting a 4.7kΩ resistor in
series with the ASM809/ASM8091/ASM810 reset output and
the µP/µC bi-directional reset pin.
Negative VCC Transients
The ASM809/ASM8091/ASM810 protect µpS from brownouts
and low VCC. Short duration transients of 100mV amplitude
and 60µpS or less duration typically do not cause a false
RESET.
BUF
Valid Reset with VCC under 1.1V
Buffered
RESET
When VCC is under 1.1V, to ensure logic inputs connected to
V
CC
the ASM809,ASM8091 RESET pin are in a known state, a
100kΩ pull-down resistor is needed at RESET. The value of
the resistor is not critical. A 100kΩ pull-up resistor to VCC at
µC or µP
ASM809
ASM8091
Power supply
RESET is needed with the ASM810.
4.7kΩ
RESET
Input
RESET
GND
V
CC
GND
Bi-directional I/O Pin
ASM809
Power Supply
ASM8091
Figure 4: Bidirectional Reset Pin Interfacing
RESET
100k
Ω
GND
Figure 2: RESET valid with VCC under 1.1V
V
CC
100kΩ
ASM810
RESET
Power Supply
GND
Figure 3: RESET valid with VCC under 1.1V
3 of 12
3-Pin Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
ASM809,ASM8091,ASM810
July 2005
rev 1.8
Absolute Maximum Ratings Table 1:
Parameter
Min
Max
Units
Pin Terminal Voltage With Respect To Ground
VCC
-0.3
-0.3
6.0
V
V
VCC + 0.3
RESET, RESET
Input current at VCC
20
20
mA
mA
V/µs
Output current: RESET, RESET
Rate of Rise at VCC
100
ESD rating
HBM
2
200
KV
V
MM
Note: These are stress ratings only and the functional operation is not implied. Exposure
to absolute maximum ratings for prolonged time periods may affect device reliability.
Absolute Maximum Ratings Table 2:
Parameter
Min
Max
Units
Power Dissipation (TA = 70°C)
320
105
160
300
mW
°C
Operating temperature range
Storage temperature range
-40
-65
°C
Lead temperature (Soldering, 10 sec)
°C
Note: These are stress ratings only and the functional operation is not implied. Exposure to absolute
maximum ratings for prolonged time periods may affect device reliability.
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3-Pin Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
ASM809,ASM8091,ASM810
July 2005
rev 1.8
Electrical Characteristics:
Unless otherwise noted, V is over the full voltage range, T = -40°C to 105°C.
CC
A
Typical values at T = 25°C, V = 5V for L/M/J devices, V = 3.3V for T/S devices and V = 3V for R devices.
A
CC
CC
CC
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
TA = 0°C to 70°C
TA = -40°C to 105°C
Input Voltage
Range
1.1
1.2
5.5
5.5
V
V
VCC
TA= -40°C to 85°C
TA = -40°C to 85°C
TA = 85°C to 105°C
TA = 85°C to 105°C
VCC < 5.5V
9
6.0
15
10
25
20
V
V
V
CC < 3.6V
CC < 5.5V
CC < 3.6V
ICC
Supply Current
µA
TA = 25°C
TA = -40°C to 85°C
TA = 85°C to 105°C
4.56
4.50
4.40
4.70
4.75
4.86
L devices
M devices
J devices
T devices
S devices
R devices
4.63
4.38
4.00
3.08
2.93
2.63
TA = 25°C
TA = -40°C to 85°C
TA = 85°C to 105°C
4.31
4.25
4.16
4.45
4.50
4.56
TA = 25°C
TA = -40°C to 85°C
TA = 85°C to 105°C
3.93
3.89
3.80
4.06
4.10
4.20
VTH
Reset Threshold
V
TA = 25°C
TA = -40°C to 85°C
TA = 85°C to 105°C
3.04
3.00
2.92
3.11
3.15
3.23
TA = 25°C
TA = -40°C to 85°C
TA = 85°C to 105°C
2.89
2.85
2.78
2.96
3.00
3.08
TA = 25°C
TA = -40°C to 85°C
TA = 85°C to 105°C
2.59
2.55
2.50
2.66
2.70
2.76
Reset Threshold
Temp Coefficient
30
20
ppm/°C
µs
VCC to Reset
VCC = VTH to VTH-100mV
Delay
Notes:
1. Production testing done at TA = 25°C. Over-temperature specifications guaranteed by design only, using six sigma design limits.
2. RESET output is active LOW for the ASM809/ASM8091 and RESET output is active HIGH for the ASM810.
5 of 12
3-Pin Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
ASM809,ASM8091,ASM810
July 2005
rev 1.8
Symbol
Parameter
Conditions
Min
140
100
Typ
Max
Unit
TA = -40°C to 85°C
TA = 85°C to 105°C
240
560
840
Reset Active
Timeout Period
TRST
ms
V
CC= VTH min., ISINK = 1.2mA, ASM809R/S/T and
0.3
0.4
0.3
Low RESET
Output Voltage
ASM809/
ASM8091S
VOL
V
V
V
V
CC= VTH min., ISINK = 3.2mA, ASM809L/M/J
ASM8091
CC > 1.1V, ISINK = 50µA
CC > VTH max., ISOURCE = 500µA, ASM809R/S/T
0.8VCC
High RESET
Output Voltage
ASM809/
and ASM8091S
VOH
V
VCC > VTH max., ISOURCE = 800µA, ASM809L/M/J
ASM8091
VCC - 1.5
Low RESET
Output Voltage
ASM810
V
CC= VTH max., ISINK = 1.2mA, ASM810R/S/T
CC= VTH max., ISINK = 3.2mA, ASM810L/M/J
0.3
0.4
V
V
VOL
V
High RESET
Output Voltage
ASM810
VOH
1.8V < VCC < VTH min., ISOURCE = 150µA
0.8VCC
V
Notes:
1. Production testing done at TA = 25°C. Over-temperature specifications guaranteed by design only, using six sigma design limits.
2. RESET output is active LOW for the ASM809/ASM8091 and RESET output is active HIGH for the ASM810.
6 of 12
3-Pin Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
ASM809,ASM8091,ASM810
July 2005
rev 1.8
Typical Operating Characteristics
Unless otherwise noted, VCC is over the full voltage range, TA = -40°C to 105°C. Typical values at TA = 25°C, VCC = 5V for L/M/J devices, VCC = 3.3V
for T/S devices and VCC = 3V for R devices.
Supply Current Vs. Temperature
ASM809T
ASM809R
(°C)
Temperature
Normalized Reset Threshold Vs. Temperature
ASM809T
ASM809R
(°C)
Temperature
Power-up Reset Timeout Period Vs. Temperature
ASM809T
ASM809R
Temperature (°C)
7 of 12
3-Pin Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
ASM809,ASM8091,ASM810
July 2005
rev 1.8
Package Dimensions
Plastic SOT-23 (3-Pin)
Inches
Millimeters
Min Max
Plastic SOT-23 (3-Pin)
Min
Max
D
B
A
A1
B
0.030
0.002
0.012
0.003
0.110
0.047
0.046
0.006
0.020
0.008
0.120
0.055
0.75
0.05
0.30
0.08
2.80
1.20
1.17
0.15
0.50
0.20
3.04
1.40
C
D
E
E
H
e
S
e
0.037 BSC
0.075 BSC
0.95 BSC
1.9 BSC
e1
H
L
0.083
0.104
0.024
2.10
2.64
0.60
A
0.016
0.40
a
o
0
o
8
o
0
o
8
a
C
e1
A1
S
NA
NA
L
8 of 12
3-Pin Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
ASM809,ASM8091,ASM810
July 2005
rev 1.8
5L SOT- 23 Package
NOTE:
1. DIMENSIONS ARE IN MM.
2. DRAWING NOT TO SCALE.
3. DIMENSIONS ARE INCLUSIVE OF PLATING.
4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR.
5. MOLD FLASH SHALL NOT EXCEED 0.254MM.
6. JEDEC PACKAGE REFERENCE IS MO-193.
9 of 12
3-Pin Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
ASM809,ASM8091,ASM810
July 2005
rev 1.8
Ordering Information:
Package Marking
Pin-Package
Part Number
Reset Threshold (V)
Temperature Range
(LL Lot Code)
ASM809 ACTIVE LOW RESET, TIN-LEAD PLATED DEVICES
ASM809LEUR
ASM809MEUR
ASM809JEUR
ASM809TEUR
ASM809SEUR
ASM809REUR
ASM8091SEUK
4.63
4.38
4.00
3.08
2.93
2.63
2.93
-40°C to +105°C
-40°C to +105°C
-40°C to +105°C
-40°C to +105°C
-40°C to +105°C
-40°C to +105°C
-40°C to +105°C
3-SOT23
3-SOT23
3-SOT23
3-SOT23
3-SOT23
3-SOT23
5-SOT23
SALL
SBLL
SCLL
SDLL
SELL
SFLL
LO83
ASM809 ACTIVE LOW RESET, LEAD FREE DEVICES
ASM809LEURF
ASM809MEURF
ASM809JEURF
ASM809TEURF
ASM809SEURF
ASM809REURF
ASM8091SEUKF
4.63
4.38
4.00
3.08
2.93
2.63
2.93
-40°C to +105°C
-40°C to +105°C
-40°C to +105°C
-40°C to +105°C
-40°C to +105°C
-40°C to +105°C
-40°C to +105°C
3-SOT23
3-SOT23
3-SOT23
3-SOT23
3-SOT23
3-SOT23
5-SOT23
NALL
NBLL
NCLL
NDLL
NELL
NFLL
LO83
ASM810 ACTIVE HIGH RESET, TIN-LEAD PLATED DEVICES
ASM810LEUR
ASM810MEUR
ASM810JEUR
ASM810TEUR
ASM810SEUR
ASM810REUR
4.63
4.38
4.00
3.08
2.93
2.63
-40°C to +105°C
-40°C to +105°C
-40°C to +105°C
-40°C to +105°C
-40°C to +105°C
-40°C to +105°C
3-SOT23
3-SOT23
3-SOT23
3-SOT23
3-SOT23
3-SOT23
SGLL
SHLL
SILL
SJLL
SKLL
SLLL
ASM810 ACTIVE HIGH RESET, LEAD FREE DEVICES
ASM810LEURF
ASM810MEURF
ASM810JEURF
ASM810TEURF
ASM810SEURF
ASM810REURF
4.63
4.38
4.00
3.08
2.93
2.63
-40°C to +105°C
-40°C to +105°C
-40°C to +105°C
-40°C to +105°C
-40°C to +105°C
-40°C to +105°C
3-SOT23
3-SOT23
3-SOT23
3-SOT23
3-SOT23
3-SOT23
NGLL
NHLL
NILL
NJLL
NKLL
NLLL
Notes:
•
•
For parts to be packed in Tape and Reel, add “-T” at the end of the part number.
Alliance Semiconductor's lead free parts are RoHS compliant. All parts are Lead Free by default. Contact factory for Non Lead
Free devices
10 of 12
3-Pin Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
ASM809,ASM8091,ASM810
July 2005
rev 1.8
Related Products:
ASM8091
ASM809
ASM810
ASM811
ASM812
Max Supply Current
Package Pins
15µA
3
15µA
3
15µA
15µA
15µA
5
4
4
Manual RESET input
Package Type
SOT-143
SOT-23
SOT-23
SOT-143
SOT-23
Active-HIGH RESET Output
Active-LOW RESET Output
11 of 12
3-Pin Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
ASM809,ASM8091,ASM810
July 2005
rev 1.8
Copyright © Alliance Semiconductor
All Rights Reserved
Alliance Semiconductor Corporation
2575 Augustine Drive,
Santa Clara, CA 95054
Tel: 408 - 855 - 4900
Fax: 408 - 855 - 4999
www.alsc.com
Part Number:
ASM809,ASM8091,ASM810
Document Version: V.1.8
© 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.
12 of 12
3-Pin Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
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