The RE46C317/18 is a CMOS piezo buzzer driver IC with built‑in boost converter, low static current and 10 V output for battery‑powered applications.
The RE46C317/18 is a CMOS piezo buzzer driver IC that includes an internal boost converter. It operates from a 3 V battery or backup source, provides low static current, a 10 V boost output, and low on‑resistance for the buzzer driver. The device offers three buzzer‑enable states (tri‑state, low and high) for the RE46C317 and two states for the RE46C318 variant.
Typical applications include smoke detectors, CO detectors, personal safety products and electronic toys. The IC is supplied in 8‑lead PDIP and SOIC packages and is specified for operation from –10 °C to +60 °C with storage up to +125 °C. This manual is written in Chinese.
| Standby supply current (IDD1) | 0.5 µA |
|---|---|
| Operating temperature range (TA) | -10 °C to +60 °C |
| Storage temperature range (TSTG) | -55 °C to +125 °C |
| Buzzer enable states (RE46C317) | Tri‑state, low level, high level |
The RE46C317 provides three enable states: tri‑state, low level, and high level.
It is intended for smoke detectors, CO detectors, personal safety products and electronic toys.