BD4745 Datasheet PDF - ROHM Semiconductor
| Part Number | BD4745 | |
| Description | Bipolar Voltage Detector IC | |
| Manufacturers | ROHM Semiconductor | |
| Logo |  |
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Voltage Detector IC Series
Bipolar
Voltage Detector ICs
BD47xx series
●General Description
The BD47xx series is a Voltage Detector IC,
developed to prevent system errors at transient state,
when the power of CPU or logic circuit switches
ON/OFF or in cases of momentary shut down. These
ICs consist of three terminals (power supply, GND and
reset output) to detect power supply voltages and
outputs reset signals of various systems. These ICs
are ultra-compact and have low current consumption,
making them ideal for portable products.
●Features
High accuracy detection
Low current consumption
Very small package
Open collector “L” reset output
Package SSOP5 is similar to SOT-23-5 (JEDEC)
●Typical Application Circuit
Datasheet
●Key Specifications
Detection voltage range:
1.9V to 4.6V (Typ.)
0.1V steps
High accuracy detection voltage:
±1%
Low current consumption:
1.6µA (Typ.)
Operating temperature range:
-40°C to +75°C
●Package
SSOP5
2.90mm x 2.80mm x 1.25mm
●Applications
Circuits using microcontrollers or logic circuits that require
a reset.
BD47xx series
VDD
VOUT
GND
VDD
RL
RESET
CPU
Micro-controller
CL
GND
●Connection Diagram
SSOP5
TOP VIEW
VDD
VOUT
Marking
Lot. No
N.C. SUB GND
●Pin Descriptions
PIN No. Symbol
Function
1
N.C.
Unconnected Terminal
2 SUB Substrate*
3 GND GND
4 VOUT Reset Output
5 VDD Power Supply Voltage
*Substrate Pin should be connected with GND
○Product structure：Silicon monolithic integrated circuit
.www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product is not designed for protection against radioactive rays
1/10
TSZ02201-0R7R0G300020-1-2
21.Jun.2016 Rev.007
|
| |
 
BD47xx series
●Typical Performance Curves
10
9 【【BBDD4477229G】】
8
7
6
5
4
3
2
1 Icc1=1.34μA
0 Icc2=1.46μA
0 1 2 3 4 5 6 7 8 9 10
VDD SUPPLY VOLTAGE ：VDD[V]
Fig.2 Circuit Current
6
【【BBDD4477229G】】
5
4
3
2
VDET=2.90V VDET=2.95V
1
⊿VDET=50mV
0
0123456
VDD SUPPLY VOLTAGE ：VDD[V]
Fig.4 I/O Characteristics
800
700 【【BBDD44772299】G】
600
500
400 IOL=12.194mA at Vo=400mV
300
200
100
0
0 5 10 15 20 25 30
OUTPUT VOLTAGE ： VOUT[mV]
Fig.3 “Low” Output Current
1000
900
800
700
600
500
400
300
200
100
0
0
【【BD472299G】】
VOPL=0.675V
0.5 1 1.5 2 2.5
VDD SUPPLY VOLTAGE ： VDD[V]
Fig.5 Operating Limit Voltage
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/10
TSZ02201-0R7R0G300020-1-2
21.Jun.2016 Rev.007
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for BD4745 electronic component. |
| Information | Total 14 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ BD4745.PDF Datasheet ] | |
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