Analog Devices / Maxim Integrated MAX14727/28/31 Overvoltage Protectors
Analog Devices MAX14727/28/31 Dual-Input Bidirectional Overvoltage Protectors protect circuits against two positive voltage faults up to +28VDC. The Overvoltage Protectors feature an internal clamp that also protects from surges up to 100V. The devices automatically select the input source, with channel A being the primary supply.
Analog Devices MAX14727/28/31 features reverse bias-blocking capabilities. Unlike other overvoltage protectors, when the devices are disabled, the voltage applied to OUT does not feed into INA or INB. These devices also feature two OTG enable pins (OTG_ENA, OTG_ENB) that allow OUT voltage to supply the corresponding input when OUT is higher than the output startup voltage.
Features
- Protects portable devices with dual-input power
- Wide operating input-voltage protection from 3V to 28V
- 5A continuous-current capability
- Integrated 73mΩ (typ) nMOSFET switch
- Increases system reliability through premium security
- Surge immunity over +100V
- Soft-start to minimize in-rush current
- Internal 15ms startup debounce
- Thermal shutdown protection
- Minimizes board space with a compact package
- 30-Bump, 2.6x2.2mm WLP
- Allows flexible and precise design in OVLO implementation
- Wide adjustable OVLO threshold range from 4V to 14V
- OTG enables allow OUT supply INA/INB
- Preset accurate internal OVLO thresholds:
- 13.75V ±2% (MAX14727)
- 10V ±2% (MAX14728)
- 5.92V ±2% (MAX14731)
Applications
- Smartphones
- Tablets
- e-Readers
Typical Application Circuit
Associated Tool
Analog Devices / Maxim Integrated MAX14727EVKIT Evaluation Kit
A fully tested and assembled circuit board used to demonstrate the MAX14727.
Publicado: 2018-01-22
| Actualizado: 2023-05-04