Datasheet
Voltage Detector IC Series
Low Voltage Standard
CMOS Voltage Detector ICs
BU48xx series BU49xx series
●General Description
●Key Specifications
¢ Detection voltage:
0.9V to 4.8V
0.1V steps
ROHM standard CMOS reset IC series is a high-accuracy,
low current consumption reset IC series. The lineup was
established with two output types (Nch open drain and
CMOS output) and detection voltage range from 0.9V to
4.8V in increments of 0.1V, so that the series may be
selected according to the application at hand.
¢ High accuracy detection voltage:
¢ Ultra-low current consumption:
¢ Operating temperature range:
●Package
±1.0%
0.55µA (Typ.)
-40°C to +125°C
●Features
SSOP5
SOP4
2.90mm x 2.80mm x 1.25mm
2.00mm x 2.10mm x 0.95mm
1.60mm x 1.60mm x 0.60mm
4.50mm x 4.15mm x 1.50mm
¢
¢
¢
¢
¢
¢
Ultra-low current consumption
High accuracy detection, Ultra-low voltage detection
Two output types (Nch open drain and CMOS output)
Wide operating temperature range
VSOF5
SOT89-3F
●Applications
Very small and low height package
All electronic devices that use micro controllers and logic
circuits
Package SSOP5 and SOP4 is similar to SOT-23-5 and
SC-82 respectively (JEDEC)
●Typical Application Circuit
VDD1
V
DD1
VDD2
R
L
Micro
controller
RST
BU49xx
Micro
R
ST
BU48xx
controller
C
IN
CIN
CL
C
L
(Capacitor for
noise filtering)
(Capacitor for
noise filtering)
GND
GND
(Open Drain Output type)
(CMOS Output type)
BU48xx series
BU49xx series
○Product structure:Silicon monolithic integrated circuit ○This product is not designed for protection against radioactive rays
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TSZ02201-0R7R0G300060-1-2
22.May.2013 Rev.008
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