ASM1810-10 ALSC [Alliance Semiconductor Corporation], ASM1810-10 Datasheet

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ASM1810-10

Manufacturer Part Number
ASM1810-10
Description
Low Power, 5V uP Reset Active LOW, Push-Pull Output
Manufacturer
ALSC [Alliance Semiconductor Corporation]
Datasheet
February 2005
rev 1.4
General Description
The ASM1810 is a voltage supervisor with low-power, 5V µP
active LOW Reset, Push-Pull output. Maximum supply current
over temperature is a low 20µA.
The ASM1810 generates an active LOW reset signal whenever
the monitored supply is out of tolerance. A precision reference
and comparator circuit monitor power supply (V
Tolerance level options are 5%, 10% and 15%. When an out-of-
tolerance condition is detected, an internal power-fail signal is
generated which forces an active LOW reset signal. After V
returns to an in-tolerance condition, the reset signal remains
active for 150ms to allow the power supply and system
microprocessor to stabilize.
The ASM1810 is designed with a push-pull output stage and
operates over the extended industrial temperature range.
Devices are available in low cost TO-92 and compact surface
mount SOT-23 packages.
Other low power products in this family include the ASM1811/
12/15/16/17, ASM1233D and ASM1233M.
Typical Operating Circuit
ASM1810
2575 Augustine Drive . Santa Clara, CA 95054 . Tel: 408.855.4900 . Fax: 408.855.4999 . www.alsc.com
V
GND
CC
RESET
Notice: The information in this document is subject to change without notice
Microprocessor
RESET
- Active LOW, Push-Pull Output
Low Power, 5V µP Reset
CC
) level.
Alliance Semiconductor
CC
Key Features
Applications
Block Diagram
V
V
Reference
Reference
Low Supply Current
•20 µA maximum (5.5 V)
Automatically restarts a microprocessor after power failure
150ms reset delay after V
dition
Active LOW power-up reset
Precision temperature-compensated voltage reference and
comparator
Eliminates external components
Low cost TO-92 and compact surface mount SOT-23 pack-
age
Push-Pull output for minimum current drain
Operating temperature -40°C to +85°C
Set-top boxes
Cellular phones
PDAs
Energy management systems
Embedded control systems
Printers
Single board computers
Tolerance
Tolerance
CC
CC
Supply
Supply
Bias
Bias
2
+
+
-
-
ASM1810
ASM1810
Typical
Typical
150ms
150ms
Delay
Delay
CC
GND
returns to an in-tolerance con-
3
ASM1810
1
RESET
RESET

Related parts for ASM1810-10

ASM1810-10 Summary of contents

Page 1

... February 2005 rev 1.4 General Description The ASM1810 is a voltage supervisor with low-power, 5V µP active LOW Reset, Push-Pull output. Maximum supply current over temperature is a low 20µA. The ASM1810 generates an active LOW reset signal whenever the monitored supply is out of tolerance. A precision reference and comparator circuit monitor power supply (V Tolerance level options are 5%, 10% and 15% ...

Page 2

... CC Pin Description SOT-23 TO-92 Pin # Pin # Notice: The information in this document is subject to change without notice GND Pin Name RESET V CC GND Low Power, 5V µP Reset ASM1810 TO-92 ASM1810 Description Active LOW reset output Power supply input Ground ...

Page 3

... Figure 1: RESET Valid Output Conditions The ASM1810 active LOW reset signal is valid as long as V remains above 1.2V. However the RESET output on the ASM1810 uses a push-pull drive stage that can maintain a valid output below 1.2V. To sink current with V resistor can be connected from the reset pin (RESET) to Ground (see Figure 1) ...

Page 4

... Unless otherwise noted VCC = 1.25V to 5.5V and specifications are over the operating temperature range of -40 Parameter Supply voltage Output voltage Output Current Output Current Operating Current V Trip Point (ASM1810R- Trip Point (ASM1810R-10 Trip Point (ASM1810R-15) CC Output Capacitance V Detect to RESET Low CC V Slew Rate CC (V (MAX (MIN) CCTP CCTP ...

Page 5

... Notice: The information in this document is subject to change without notice RESET Time Output Stage (ms) 150 Push-Pull 150 Open-Drain 150 Push-Pull 150 Push-Pull 150 Open-Drain 150 Push-Pull 350 Open-Drain 350 Open-Drain Low Power, 5V µP Reset ASM1810 RESET Polarity LOW LOW HIGH LOW LOW HIGH LOW LOW ...

Page 6

... BSC e1 0.075 BSC H 0.083 0.104 L 0.016 0.024 Notice: The information in this document is subject to change without notice Plastic SOT-23 (3-Pin Millimeters Min Max 0.75 1.17 0.05 0.15 0.30 0.50 0.08 0.20 2.80 3.04 1.20 1.40 0.95 BSC 1.9 BSC 2.10 2.64 0.40 0. Low Power, 5V µP Reset ASM1810 ...

Page 7

... Notice: The information in this document is subject to change without notice To-92 (3-Pin) Dimensions in Millimeters Min Max 4.445 4.699 0.406 0.508 0.356 0.406 4.445 4.699 3.505 3.658 2.489 2.591 1.143 1.397 4.269 4.420 12.7 14.86 2.413 2.515 Low Power, 5V µP Reset ASM1810 ...

Page 8

... Low Power, 5V µP Reset ASM1810 SOT-23 RESET Package Marking Package Polarity LOW RALL LOW RBLL LOW RCLL LOW KALL LOW KBLL LOW KCLL TO-92 RESET Package Marking Package Polarity LOW ASM1810-5 LOW ASM1810-10 LOW ASM1810-15 LOW ASM1810-5F LOW ASM1810-10F LOW ASM1810-15F ...

Page 9

... 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. ASM1810 Copyright © Alliance Semiconductor All Rights Reserved Part Number: ASM1810 Document Version: 1.4 ...

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