Document
Datasheet
Voltage Detector IC Series for Automotive
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.)
High accuracy detection voltage: Ultra-low current consumption: Operating temperature range: Three internal, fixed delay time:
0.1V steps ±1.0%
0.85µA (Typ.) -40°C to +105°C
50ms
100ms
200ms
●Package
SSOP5
2.90mm x 2.80mm x 1.25mm
●Applications Circuits using microcontrollers or logic circuits that require a reset for automotive applications (car navigation, car audio, meter panel, exterior lamp etc.)
●Typical Application Circuit
VDD1
VDD2
BD45Exxxx-M
RL Micro
RST controller
CL
(Noise-filtering Capacitor)
(Open Drain Output Type) BD45Exxxx-M series
●Connection Diagram
SSOP5
VDD
VOUT
GND
TOP VIEW
Marking
Lot. No
ER SUB GND
VDD1
BD46Exxxx-M
RST
Micro controller
GND
CL
(Noise-filtering Capacitor)
(CMOS Output Type) BD46Exxxx-M series
●Pin Descriptions
PIN No. Symbol
Function
1 ER Manual Reset
2
SUB
Substrate *
3
GND
GND
4
VOUT
Reset Output
5 VDD Power Supply Voltage
*Connect the substrate to GND.
○Product structure:Silicon monolithic integrated circuit
.www.rohm.com © 2013 ROHM Co., Ltd. All rights reserved. TSZ22111・14・001
○This product is not designed for protection against radioactive rays
1/14
TSZ02201-0R7R0G300110-1-2 27.Aug.2013 Rev.004
BD45Exxxx-M series BD46Exxxx-M series
●Ordering Information
BDx x E x x
x
x-
M
TR
Part Number
Output Type 45 : Open Drain 46 : CMOS
Reset Voltage Value 23 : 2.3V
0.1V step 48 : 4.8V
Counter Timer Delay Time Settings 5 : 50ms 1 : 100ms 2 : 200ms
Package G : SSOP5
Product Category M : Automotive Category
Packaging and forming specification TR : Embossed tape
and reel
●Lineup
Table 1. Open Drain Output Type
Counter Timer Delay Time Settings
50ms
100ms
200ms
Detection Voltage
Marking
4.8V 4.7V 4.6V 4.5V 4.4V 4.3V 4.2V 4.1V 4.0V 3.9V 3.8V 3.7V 3.6V 3.5V 3.4V 3.3V 3.2V 3.1V 3.0V 2.9V 2.8V 2.7V 2.6V 2.5V 2.4V 2.3V
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Part Number
BD45E485 BD45E475 BD45E465 BD45E455 BD45E445 BD45E435 BD45E425 BD45E415 BD45E405 BD45E395 BD45E385 BD45E375 BD45E365 BD45E355 BD45E345 BD45E.