3.3V, Fixed Delay (50msec), High Accuracy Voltage Detector

ROHM's BD45xxxG and BD46xxxG series of reset ICs utilize CMOS processes for low current consumption and high accuracy. The built-in counter timer delay circuit eliminates the need to set the delay time via external capacitor. The extensive lineup includes both Nch Open Drain and CMOS output types in a wide range of detection voltages (from 2.3V to 4.8V, in 0.1V steps), enabling selection of the ideal solution based on customer requirements. A total of 156 models are offered, classified by delay time. In addition, the entire series is of course both lead-free and RoHS-compliant.

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Product Detail

Part Number | BD45335G-TR
Status | Recommended
Package | SSOP5
Unit Quantity | 3000
Minimum Package Quantity | 3000
Packing Type | Taping
RoHS | Yes


Under Voltage Detection Voltage [V] (typ.)


VDET Precision [%]


Reset Active Voltage Range [V]

0.95 to 10

Output Types

Open drain

Reset Delay Timer

Fixed Delay (50msec)

Reset Active State


Manual Reset


Watchdog Timer


Auto Motive


Circuit Current (ON) [µA]


Circuit Current (OFF) [µA]


Hysteresis Voltage [V]

VDET x 0.05

L Output Current (LowVol) [mA]


L Output Current (HighVol) [mA]


Operating Temperature (Min.)[°C]


Operating Temperature (Max.)[°C]


Package Size

2.9x2.8 (t=1.25)


・Broad lineup available in different detection voltages : 2.3V to 4.8V (0.1V increments)
・High detection voltage accuracy : ±1%
・Ultra-low current consumption : 0.85uA typ. (OFF circuit current)

Design Resources



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
  • Basics of Thermal Resistance and Heat Dissipation
  • Method for Calculating Junction Temperature from Transient Thermal Resistance Data
  • Thermal Resistance



  • BD45335G PSPICE Model


  • 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)