CM3403-46ST CALMIRCO [California Micro Devices Corp], CM3403-46ST Datasheet

no-image

CM3403-46ST

Manufacturer Part Number
CM3403-46ST
Description
Micropower Supply Voltage Supervisor (SVS)
Manufacturer
CALMIRCO [California Micro Devices Corp]
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CM3403-46ST
Manufacturer:
CMD
Quantity:
14 500
Features
Applications
© 2004 California Micro Devices Corp. All rights reserved.
10/29/04
Typical Application Circuit
V
IN
Precision voltage sensor
Two threshold options: 2.93V or 4.63V
Stable over temperature
Valid output logic while V
Power-on reset pulse width of
140ms (min.) to 460ms (max.)
Low quiescent current (40µA typ.)
No external components required
3-pin SOT23 package
"809" compatible pinout
Lead-free versions available
Critical µP and µC power monitoring
PCI applications
Memory integrity during "brownouts"
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
V
CC
CM3403
GND
RESET
Micropower Supply Voltage Supervisor (SVS)
CC
= 0V.
Microprocessor
RESET
GND
V
CC
Tel: 408.263.3214
GND
V
Simplified Electrical Schematic
Product Description
The CM3403 is a micropower low voltage supply
supervisor designed to provide the necessary power-
on reset control for microprocessors and memory
applications. An internal pull-down resistor on the
RESET output ensures the output remains valid under
all supply conditions.
During either a cold-start power-up or a complete
power-down sequence, the RESET output will remain
at 0V while the V
threshold level and ground.
When the V
age, an internal timer is triggered and the RESET out-
put remains active for a minimum of 140ms, at which
point the output is taken inactive.
In the event of a "brown-out" condition and the V
voltage collapses below the threshold the RESET out-
put is immediately asserted.
Both the trigger threshold and the precision delay pulse
are internally controlled eliminating the requirement for
external components.
The CM3403 is housed in a 3-pin SOT23 package and
is available with optional lead-free finishing.
CC
Threshold
Reference
CC
+
-
Fax: 408.263.7846
input exceeds the preset threshold volt-
CC
input voltage is between the
Rising Edge
Delay
www.calmicro.com
CM3403
R
PULLDOWN
RESET
CC
1

Related parts for CM3403-46ST

CM3403-46ST Summary of contents

Page 1

... RESET out- put is immediately asserted. Both the trigger threshold and the precision delay pulse are internally controlled eliminating the requirement for external components. The CM3403 is housed in a 3-pin SOT23 package and is available with optional lead-free finishing. Simplified Electrical Schematic V Microprocessor ...

Page 2

... RESET will immediately become active. Internal circuitry ensures RESET will remain active even when the supply voltage is as low as 0V Supply input signal which is monitored by the sense comparator. This input is compared to the CC 2.93V (CM3403-29ST/SO) or 4.63 (CM3403-46ST/SO) reference to determine the state of the out- put. Ordering Information Threshold Pins Voltage 3 2 ...

Page 3

... Note 1: Electrical Operating Characteristics are specified over the Standard Operating Conditions unless specified otherwise. © 2004 California Micro Devices Corp. All rights reserved. 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 10/29/04 ABSOLUTE MAXIMUM RATINGS STANDARD OPERATING CONDITIONS CONDITIONS CM3403-29, T =25°C A CM3403-29 CM3403-46, T =25°C A ...

Page 4

... Performance Information CM3403 Typical Characteristics (nominal conditions unless specified otherwise) Reset Response with Overdrive 100 Reset Threshold Overdrive [mV] Below Trigger RESET* Pull-down 1000 100 SUPPLY VOLTAGE [V] © 2004 California Micro Devices Corp. All rights reserved. 4 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ...

Page 5

... Performance Information (cont’d) CM3403 Typical Thermal Characteristics (nominal conditions unless specified otherwise) RESET Propagation Delay vs. Temperature 220 215 210 205 200 195 190 185 180 Temperature [ Ground Current vs. Temperature Temperature [ © 2004 California Micro Devices Corp. All rights reserved. ...

Page 6

... Mechanical Details SOT23-3 Mechanical Specifications Dimensions for CM3403 devices packaged in 3-lead SOT23 packages are presented below. For complete information on the SOT23-3 package, see the California Micro Devices SOT23 Package Information document. PACKAGE DIMENSIONS Package SOT23-3 JEDEC No. TO-236 (Var. AB) Pins/Leads Millimeters Dimensions ...

Related keywords