Voltage Detectors (Reset ICs)

ROHM voltage detector IC series are reset IC with highly accurate detection voltage of ±1% , low current consumption, small thin packages and wide range of detection voltage. They can be used for every kind of application equipped with controllers such as micro controllers, CPU or DSP. In the ROHM voltage detector IC series, both CMOS and open drain output are available, therefore output of reset signal can be selected for connected power supply. Default SSOP packages are pin-compatible and function-compatible, so they can be used as replacement for existing IC. Besides, a lineup of very small and thin package makes compact implementation near micro controllers possible. All lineups are Pb-free, and meet RoHS.
Voltage Detectors (Reset ICs)
FAQ

Voltage Detectors Easy Parts Finder

Series Delay time Features Circuit Current (µA) Voltage Detection Accuracy Ta=25°C (%) Detection Voltage Range (V) Detection Voltage Steps (V) Absolute Maximum Ratings Voltage (V) Operating Voltage Range (V) Hysteresis Voltage Package Operating Temperature Range Manual Reset PIN
BD48(49)Exx Series - - 0.85 ±1 2.3 to 6.0 0.1V 10 0.95 to 10.0 5% SSOP5 -40°C to 105°C -
BD48(49)Kxx Series - - 0.85 ±1 2.3 to 6.0 0.1V 10 0.95 to 10.0 5% SSOP3 (GND 1pin) -40°C to 105°C -
BD48(49)Lxx Series - - 0.85 ±1 2.3 to 6.0 0.1V 10 0.95 to 10.0 5% SSOP3 (GND 3pin) -40°C to 105°C -
BD48(49)xx Series - - 0.85 ±1 2.3 to 6.0 0.1V 10 0.95 to 10.0 5% VSOF5 -40°C to 105°C -
BD47xx Series - - 1.6 ±1 1.9 to 4.6 0.1V 10 0.85 to 10.0 50mV SSOP5 -40°C to 75°C -
BD71L4Lx-1 Series - Over Voltage Detection
(Low active)
0.7 ±0.8 4.05 - 7 1.2 to 7.0 30mV SSOP5 HVSOF5 -40°C to 85°C -
NEW
BD71L3Sx Series
- Over Voltage Detection
(Low active)
0.7 ±1 3.83 - 7 1.2 to 7.0 30mV HVSOF5 -40°C to 85°C -
BD52(53)Exx Series Controlled by External Capacitor - 0.9 ±1 2.3 to 6.0 0.1V 10 0.95 to 10.0 5% SSOP5 -40°C to 105°C -
BD52(53)xx Series Controlled by External Capacitor - 0.9 ±1 2.3 to 6.0 0.1V 10 0.95 to 10.0 5% VSOF5 -40°C to 105°C -
BU42(43)xx Series Controlled by External Capacitor - 0.55 ±1 0.9 to 4.8 0.1V 7 0.7 to 7.0 5% SSOP5 SOP4 VSOF5 -40°C to 125°C -
BD4142HFV Controlled by External Capacitor Sense type 7.5 ±1.8 Default 0.5V (Adjustable via external resistors) - 6 3.0 to 5.5 10mV HVSOF5 -10°C to 100°C -
BD37AxxFVM Series Controlled by External Capacitor With Watchdog Timer
(INH pin switches to "High")
5 ±1.5 1.9, 4.1 - 10 1.0 to 10.0 13%, 3.5% MSOP8 -40°C to 105°C -
BD99A41F Controlled by External Capacitor With Watchdog Timer
(INH pin switches to "High")
5 ±1.5 4.1 - 10 1.0 to 10.0 3.5% SOP8 -40°C to 105°C -
BD87AxxFVM Series Controlled by External Capacitor With Watchdog Timer
(INH pin switches to "Low")
5 ±1.5 2.8, 2.9, 3.4, 4.1 - 10 1.0 to 10.0 3.5%, 4.5%, 5% MSOP8 -40°C to 105°C -
NEW
BD3775AF
Controlled by External Capacitor 2ch Reset & Comparator 350 ±1.5 1.23 - 20 3.5 to 18.0 28mV SOP8 -40°C to 85°C -
BD45(46)xxx Series Counter Timer Built-in 50ms, 100ms, 200ms 0.85 ±1 2.3 to 6.0 0.1V 10 0.95 to 10.0 5% SSOP5 -40°C to 105°C Yes
BU45(46)Kxxx Series Counter Timer Built-in 200ms, 400ms 2.8 ±1 2.3 to 6.0 0.1V 10 0.95 to 10.0 5% SSOP3 (GND 1pin) -40°C to 105°C -
BU45(46)Lxxx Series Counter Timer Built-in 200ms, 400ms 2.8 ±1 2.3 to 6.0 0.1V 10 0.95 to 10.0 5% SSOP3 (GND 3pin) -40°C to 105°C -
Series Delay time Features Circuit Current (µA) Voltage Detection Accuracy Ta=25°C (%) Detection Voltage Range (V) Detection Voltage Steps (V) Absolute Maximum Ratings Voltage (V) Operating Voltage Range (V) Hysteresis Voltage Package Operating Temperature Range Manual Reset PIN
BD48(49)ExxG-M Series - - 0.85 ±1 (Ta=25°C) 2.3 to 6.0 0.1V 10 0.95 to 10.0 5% SSOP5 -40°C to 105°C -
BD45(46)ExxxG-M Series Counter Timer Built-in 50ms, 100ms, 200ms 0.85 ±1 (Ta=25°C) 2.3 to 6.0 0.1V 10 0.95 to 10.0 5% SSOP5 -40°C to 105°C Yes
BD52(53)xxG-2M Series Controlled by External Capacitor - 0.27 ±2.5 (Ta= All temperature) 0.9 to 5.0 0.1V 7 0.8 to 6.0 5% SSOP5 -40°C to 105°C -
BD52(53)xxG-2C Series Controlled by External Capacitor - 0.27 ±3.0 (Ta= All temperature) 0.9 to 5.0 0.1V 7 0.8 to 6.0 5% SSOP5 -40°C to 125°C -
NEW
BD52(53)xxNVX-2C Series
Controlled by External Capacitor - 0.27 ±2.5 (Ta= All temperature) 2.6 to 3.1 0.1V 7 0.8 to 6.0 5% SSON004R1010 -40°C to 125°C -
NEW
BD70(73)xxG-2C Series
- Over Voltage Detection
(High active)
0.3 ±1.4 (Ta= All temperature) 3.46 to 3.76 0.1V 7 0.8 to 6.0 - SSOP5 -40°C to 125°C -