MAXIM MAX1607ESA+

The MAX1607 P-channel MOSFET power switch limits output current to 0.7A min and 1.0A max. When the output current is increased beyond the current limit (ILIMIT), the current also increases through the replica switch (IOUT / 6500). The current-limit error amplifier compares the voltage to the internal 1.24V reference and regulates the current back to the ILIMIT. These switches are not bidirectional; therefore, the input voltage must be higher than the output voltage. Continuous Short-Circuit Protection The MAX1607 is a short-circuit-protected switch. In the event of an output short-circuit condition, the current through the switch is foldback-current-limited to 500mA continuous. The MAX1607 has a thermal shutdown feature. The switch turns off and the O (overline) output goes low immediately (no overcurrent blanking) when the junction temperature exceeds +165℃. When the MAX1607 cools 20℃, the switch turns back on. If the fault short-circuit condition is not removed, the switch will cycle on and off, resulting in a pulsed output. The MAX1607 provides an overcurrent output (OC).

• 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 (overline)) notifies the microprocessor that the internal current limit has been reached.
• A 10ms overcurrent-blanking feature allows momentary faults to be ignored, preventing false alarms to the host system and also preventing an OC signal from being issued when the device is powering up.
• Built-in thermal-overload protection limits power dissipation and junction temperature.
• The device 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 μMA 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 condition.
• The MAX1607 is also offered in a 10-pin TDFN package.
• SO Package is Pin Compatible with TPS2014, TPS2015, and TPS2041
• Accurate Current Limit (0.7A min, 1.0A max)
• Guaranteed 0.75A Short-Circuit Protection
• 10ms Internal OC Blanking Timeout
• No Overcurrent (OC) Signal During Power-Up
• 125mΩ max High-Side MOSFET
• 500mA Continuous Current
• Short-Circuit and Thermal Protection with Overcurrent Logic Output
• 1ms Start-Up Time
• Undervoltage Lockout
• 14µA Quiescent Supply Current
• 1µA max Standby Supply Current
• +2.7V to +5.5V Supply Range
• UL Recognized #E211935