BD4732G
3.2V, High Accuracy Voltage Detector

ROHM's bipolar reset ICs were specifically designed to prevent malfunctions in CPU and logic power supplies during ON/OFF switching or momentary interruptions. The 3-terminal configuration (supply, Ground, and reset output) enables detection of various system voltages as well as reset signal output. Additional features include a compact package and low current consumption, making them ideal for portable devices. The entire series is of course both lead-free and RoHS-compliant.

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Product Detail

 
Part Number | BD4732G-TR
Status | Recommended
Package | SSOP5
Unit Quantity | 3000
Minimum Package Quantity | 3000
Packing Type | Taping
RoHS | Yes

Specifications:

Under Voltage Detection Voltage [V] (typ.)

3.2

VDET Precision [%]

±1

Reset Active Voltage Range [V]

0.85 to 10

Output Types

Open collector

Reset Delay Timer

No

Reset Active State

Low

Manual Reset

No

Watchdog Timer

No

Auto Motive

No

Circuit Current (ON) [µA]

1.5

Circuit Current (OFF) [µA]

1.6

Hysteresis Voltage [V]

0.05

L Output Current (LowVol) [mA]

15

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

75

Package Size

2.90 x 2.80 (t=1.25)

Features:

・Broad lineup available in different detection voltages : 1.9V to 4.6V (0.1V increments)
・High detection voltage accuracy : ±1%
・Low current consumption
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Design Resources

 

Documents

White Paper

  • ISO 26262: Functional Safety Standard for Modern Road Vehicles

Application Note

  • Voltage Detector Circuit Collection

Technical Articles

Schematic Design & Verification

  • Spice Models for Voltage Detector ICs
  • Importance of Probe Calibration When Measuring Power: Deskew
  • Impedance Characteristics of Bypass Capacitor

Thermal Design

  • What Is Thermal Design
  • Method for Calculating Junction Temperature from Transient Thermal Resistance Data
  • Thermal Resistance

Tools

Models

  • BD4732G PSPICE Model

2D/3D/CAD

  • SSOP5 Footprint / Symbol

Packaging & Quality

Package Information

  • Package Information
  • Anti-Whisker formation

Manufacturing Data

  • Factory Information

Environmental Data

  • UL94 Flame Classifications of Mold Compound
  • Compliance with the ELV directive
  • REACH SVHC Non-use Declaration
  • RoHS Comission Delegated Directive

Export Information

  • The Export Control Order
  • Export Administration Regulations(EAR)