Voltage Detector with Fixed Delay Time - BD46481G

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.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part number
Unit Quantity
Minimum Package Quantity
Packing Type
BD46481G-TR Active SSOP5 3000 3000 Taping Yes
Voltage Detection[V] 4.8
VDET Precision [%] ±1
Reset Active Voltage Range [V] 0.95 to 10
Output Types CMOS
Reset Delay Timer Fixed Delay (100msec)
Reset Active State Low
Manual Reset Yes
Watchdog Timer No
Auto Motive No
Circuit Current (ON) [µA] 0.80(VDET=4.8V)
Circuit Current (OFF) [µA] 0.85(VDET=4.8V)
Hysteresis Voltage [V] VDET x 0.05
"L" Output Current (LowVol) [mA] 1.2
"L" Output Current (HighVol) [mA] 5
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 105
  • ・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)
Technical Data
Application Note

Voltage Detector Circuit Collection

Application Note

Spice Models for Voltage Detector ICs

Application Note

Thermal Resistance