TECHNICAL NOTE
Voltage Detector IC Series
Bipolar
Voltage Detector IC
BD47
□□
G Series
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General Description
The BD47
□□
G Series is a reset IC that was developed to prevent system errors at transient state when the power of CPU or logic circuit
switches ON/OFF or 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 are realized low current consumption,
making them ideal for portable products.
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Features
1
）
Detection voltage range: 0.1-volt step line-up 1.9-4.6V (Typ.)
2
）
High accuracy voltage detection: ±1%
3
）
Low current consumption
4
）
Open collector “L” reset output
5
）
Compact SSOP5 package
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Applications
All electronic devices that use microcontrollers and logic circuits
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Selection Guide
Number
Specifications Description
①
Detection
Voltage
Example: Voltage range over 1.9V-4.6V in 0.1V
increments.
2.9V is marked as “29”
●
Lineup
Marking
Detection
Voltage
Part Number
Marking
Detection
Voltage
Part Number
Marking
Detection
Voltage
Part Number
B2 4.6V
BD4746 BR 3.6V BD4736 BH 2.6V BD4726
B1 4.5V
BD4745 BQ 3.5V BD4735 BG 2.5V BD4725
BZ 4.4V
BD4744 BP 3.4V BD4734 BF 2.4V BD4724
BY 4.3V
BD4743 B4 3.3V BD4733 BE 2.3V BD4723
BX 4.2V
BD4742 BN 3.2V BD4732 BD 2.2V BD4722
BW 4.1V
BD4741 BM 3.1V BD4731 BC 2.1V BD4721
BV 4.0V
BD4740 BL 2.0V BD4730 BB 2.0V BD4720
BU 3.9V
BD4739 BK 2.9V BD4729 BA 1.9V BD4719
BT 3.8V
BD4738 BJ 2.8V BD4728
BS 3.7V
BD4737 B3 2.7V BD4727
2007.Apr.
①
Part Number
：
BD47
□
□
G
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