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BD45E251

Description
Counter Timer Built-in CMOS Voltage Detector IC
File Size419KB,17 Pages
ManufacturerROHM Semiconductor
Websitehttps://www.rohm.com/
Download Datasheet View All

BD45E251 Overview

Counter Timer Built-in CMOS Voltage Detector IC

Datasheet
Voltage Detector IC Series
Counter Timer Built-in
CMOS Voltage Detector IC
BD45Exxxx-M series BD46Exxxx-M series
●General
Description
ROHM’s BD45Exxxx-M and BD46Exxxx-M series are
highly accurate, low current consumption Voltage
Detector IC series. Because the counter timer delay
circuit is built into those series, an external capacitor for
the delay time setting is unnecessary. The lineup was
established with two output types (Nch open drain and
CMOS output) and detection voltages range from 2.3V
to 4.8V in increments of 0.1V, so that the series may be
selected according to application.
●Features
Counter Timer Built-in
No delay time setting capacitor required
Ultra-low current consumption
Two output types (Nch open drain and CMOS output)
Package SSOP5 is similar to SOT-23-5 (JEDEC)
(AEC-Q100 Qualified)
●Key
Specifications
Detection voltage:
2.3V to 4.8V (Typ.)
0.1V steps
High accuracy detection voltage:
±1.0%
Ultra-low current consumption:
0.85µA (Typ.)
Operating temperature range:
-40° to +105°
C
C
Three internal, fixed delay time:
50ms
100ms
200ms
●Package
SSOP5
2.90mm x 2.80mm x 1.25mm
●Applications
Circuits using microcontrollers or logic circuits that require
a reset.
●Typical
Application Circuit
V
DD1
V
DD2
V
DD1
R
L
BD45Exxxx-M
R
ST
Micro
controller
BD46Exxxx-M
R
ST
Micro
controller
C
L
(Noise-filtering
Capacitor)
C
L
GND
(Noise-filtering
Capacitor)
GND
(Open
Drain Output Type)
BD45Exxxx-M series
●Connection
Diagram
(CMOS
Output Type)
BD46Exxxx-M series
●Pin
Descriptions
SSOP5
V
DD
V
OUT
PIN No.
1
2
TOP VIEW
Symbol
ER
SUB
GND
V
OUT
V
DD
Function
Manual Reset
Substrate
*
GND
Reset Output
Power Supply Voltage
3
Lot. No
4
5
Marking
ER
SUB GND
*Connect the substrate to GND.
○Product
structure:Silicon monolithic integrated circuit
○This
product is not designed for protection against radioactive rays
.
www.rohm.com
TSZ02201-0R7R0G300110-1-2
© 2013 ROHM Co., Ltd. All rights reserved.
1/14
23.May.2013 Rev.003
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