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BU4346G-TR

Description
Supervisory Circuits CMOS LOW VOLT DETEC
CategoryPower/power management    The power supply circuit   
File Size459KB,17 Pages
ManufacturerROHM Semiconductor
Websitehttps://www.rohm.com/
Environmental Compliance
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BU4346G-TR Overview

Supervisory Circuits CMOS LOW VOLT DETEC

BU4346G-TR Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
Parts packaging codeSSOP
package instructionLSSOP, TSOP5/6,.11,37
Contacts5
Reach Compliance Codecompliant
ECCN codeEAR99
Factory Lead Time7 weeks
Other featuresDETECTION THRESHOLD VOLTAGE IS 4.6V
Adjustable thresholdNO
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeR-PDSO-G5
length2.9 mm
Number of channels1
Number of functions1
Number of terminals5
Maximum operating temperature125 °C
Minimum operating temperature-25 °C
Package body materialPLASTIC/EPOXY
encapsulated codeLSSOP
Encapsulate equivalent codeTSOP5/6,.11,37
Package shapeRECTANGULAR
Package formSMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply1.8/5 V
Certification statusNot Qualified
Maximum seat height1.25 mm
Maximum supply current (Isup)0.00228 mA
Nominal supply voltage (Vsup)2.4 V
surface mountYES
technologyCMOS
Temperature levelOTHER
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Threshold voltage nominal+4.6V
Maximum time at peak reflow temperatureNOT SPECIFIED
width1.6 mm
Base Number Matches1
Datasheet
Voltage Detector IC Series
Low Voltage Free Delay Time Setting
CMOS Voltage Detector IC Series
BU42xx series
BU43xx series
●Key
Specifications
Detection voltage:
0.9V to 4.8V (Typ.)
0.1V steps
High accuracy detection voltage:
±1.0%
Ultra-low current consumption:
0.55µA (Typ.)
Operating temperature range:
-40° to +125°
C
C
●Package
SSOP5:
2.90mm x 2.80mm x 1.25mm
SOP4:
VSOF5:
2.00mm x 2.10mm x 0.95mm
1.60mm x 1.60mm x 0.60mm
●General
Description
ROHM’s BU42xx and BU43xx series are CMOS Voltage
Detector ICs with adjustable output delay. It is a
high-accuracy, low current consumption Voltage Detector
IC series with a built-in delay circuit. The lineup was
established with two output types (Nch open drain and
CMOS output) and detection voltages range from 0.9V to
4.8V in increments of 0.1V, so that the series may be
selected according to application.
●Features
Delay Time Controlled by external Capacitor
Two output types (Nch open drain and CMOS output)
Ultra-low current consumption
Wide operating temperature range
Very small and low height package
Package SSOP5 and SOP4 is similar to SOT-23-5
and SC-82 respectively (JEDEC)
●Typical
Application Circuit
V
DD1
V
DD2
●Applications
Circuits using microcontrollers or logic circuits that require
a reset.
V
DD1
R
L
BU42xx
C
IN
C
T
R
ST
Micro
controller
BU43xx
C
IN
C
T
R
ST
Micro
controller
C
L
(Capacitor for
noise filtering)
C
L
(Capacitor for
noise filtering)
GND
GND
Open Drain Output type
BU42xx series
●Connection
Diagram & Pin Descriptions
SSOP5
SOP4
N.C.
C
T
TOP VIEW
TOP VIEW
CMOS Output type
BU43xx series
V
OUT
4
C
T
3
VSOF5
TOP VIEW
GND V
DD
4
5
Marking
Lot. No
Marking
1
GND
PIN
Symbol
No.
1
2
3
4
GND
V
DD
C
T
V
OUT
2
V
DD
Lot. No
Marking
1 2 3
V
OUT
SUB C
T
Lot. No
V
OUT
PIN
Symbol
No.
1
2
3
4
5
V
OUT
V
DD
GND
N.C.
C
T
V
DD
GND
Function
Function
GND
Power supply voltage
Capacitor connection
terminal for output
delay time
Reset output
PIN
Symbol
No.
1
2
3
4
5
V
OUT
SUB
C
T
V
DD
GND
Function
Reset output
Substrate*
Capacitor connection
terminal for output
delay time
Power supply voltage
GND
Reset output
Power supply voltage
GND
Unconnected terminal
Capacitor connection
terminal for output
delay time
*Connect the substrate to V
DD
○Product
structure:Silicon monolithic integrated circuit
○This
product is not designed for protection against radioactive rays
.
www.rohm.com
TSZ02201-0R7R0G300050-1-2
© 2014 ROHM Co., Ltd. All rights reserved.
1/13
03.Feb.2014 Rev.008
TSZ22111・14・001
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