The MAX1607 is a current-limited 60mΩ switch with built-in fault blanking. Its accurate, preset 0.7A to 1.0A current limit makes it ideal for USB applications. Its low quiescent supply current (14µA) and standby current (1µA) conserve battery power in portable applications. The MAX1607 operates with inputs from +2.7V to +5.5V, making it ideal for both 3V and 5V systems. An overcurrent signal (OC) notifies the microprocessor that the internal current limit has been reached. A 10ms overcurrent-blanking feature allows momentary faults (such as those caused when hot-swapping into a capacitive load) to be ignored, thus preventing false alarms to the host system. This blanking also prevents an OC signal from being issued when the device is powering up. The MAX1607 has several safety features to ensure that the USB port is protected. Built-in thermal-overload pro- tection limits power dissipation and junction tempera- ture. The device also has accurate internal current- limiting circuitry to protect the input supply against overload. The MAX1607 is a pin-compatible upgrade to Texas Instruments’ TPS2014, TPS2015, and TPS2041 for USB applications. The same die is available in a space-saving 10-pin µMAX package (MAX1693) and can be used for next-generation designs. The MAX1694 is similar to the MAX1693, but it has a built-in latch that turns off the power switch in case of a long-term short-circuit condi- tion.
The MAX1607 is a P‑channel MOSFET power switch designed for USB applications. It provides an accurate preset current limit of 0.7 A min to 1.0 A max, low quiescent supply current (14 µA) and ultra‑low standby current (1 pA), making it suitable for portable devices.
The device includes safety features such as over‑current blanking, thermal shutdown at +165 °C, and undervoltage lockout. Pin‑compatible with TI TPS2014/2015/TPS2041, it is offered in a 10‑pin SOIC package and supports supply voltages from +2.7 V to +5.5 V.
| Current Limit | 0.7 A min to 1.0 A max |
|---|---|
| Supply Voltage Range | +2.7 V to +5.5 V |
| On‑State Resistance (RON) | 125 mΩ max |
| Thermal Shutdown Threshold | +165 °C |
The device limits output current to between 0.7 A minimum and 1.0 A maximum.