© 2004 California Micro Devices Corp. All rights reserved.

2

430 N. McCarthy Blvd., Milpitas, CA 95035-5112

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Tel: 408.263.3214

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Fax: 408.263.7846

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www.calmicro.com

10/29/04

CM3403

Ordering Information

Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.

PIN DESCRIPTIONS

PIN(S)

NAME

DESCRIPTION

1

GND

Negative reference for all signals.

2

RESET

Active low reset output. When the sense threshold has been exceeded, the RESET signal will

remain active for an additional 140ms (min.) after which it becomes inactive. During a "brownout"

condition, 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

2.93V (CM3403-29ST/SO) or 4.63 (CM3403-46ST/SO) reference to determine the state of the out-

put.

PACKAGE / PINOUT DIAGRAM

Note: This drawing is not to scale.

3-pin SOT23

GND

RESET

1

2

3

Top View

PART NUMBERING INFORMATION

Pins

Threshold

Voltage

Package

Standard Finish

Lead-free Finish

Ordering Part

Part Marking

Ordering Part

Part Marking

3

2.93V

SOT23-3

CM3403-29ST

172Y

CM3403-29SO

172R

3

4.63V

SOT23-3

CM3403-46ST

174Y

CM3403-46SO

174R