ROHM's BD45xxx and BD46xxx series are highly accurate, low current consumption reset IC series. Because the counter timer delay circuit is built into those series, an external capacitor for the delay time setting is unnecessary. The lineup was established with tow output types (Nch open drain and CMOS output) and detection voltages range from 2.3V to 4.8V in increments of 0.1V, so that the series may be selected according the application at hand.
The BD45xxx and BD46xxx series are CMOS voltage detector ICs with a built‑in counter timer, eliminating the need for an external delay capacitor. Two output types are offered: N‑channel open‑drain and CMOS, with detection voltages from 2.3 V to 4.8 V in 0.1 V steps.
The datasheet includes electrical characteristics, absolute maximum ratings, pin assignments, typical application circuits, and extensive precautionary notes for design, mounting, and handling. It is intended for use in a wide range of electronic equipment such as AV, telecommunications, and home appliances.
| Detection voltage range | 2.3 V to 4.8 V (typ.) |
|---|---|
| Detection voltage accuracy | ±1.0 % |
| Operating temperature range | -40 °C to +105 °C |
| Built‑in delay times | 50 ms, 100 ms, 200 ms |
| Package | SSOP5 2.90 mm × 2.80 mm × 1.15 mm |
The detection voltage ranges from 2.3 V to 4.8 V in 0.1 V steps.
The device provides three fixed internal delay times: 50 ms, 100 ms, and 200 ms.
It operates from –40 °C up to +105 °C.