FTL7522: Low ICCT Reset Timer with Fixed Delay and Reset Pulse

The FTL7522 is a timer for resetting a mobile device where long reset times are needed. The long delay helps avoid unintended resets caused by accidental key presses. It has a fixed delay of 7.5 ±20% seconds. The DSR pin enables Test Mode operation by immediately forcing /RST1 LOW for factory testing.

The FTL7522 has one input for single-button resetting capability. The device has a single open-drain output with 0.5mA pull-down drive.

FTL7522 draws minimal ICC current when inactive and functions over a power supply range of 1.65V to 5.0V.

The FTL7522 low-ICCT feature enables direct interface with lower-voltage chipsets without needing external translation, while maintaining low power consumption.

Features

• Fixed Reset Delay: 7.5 Seconds
• Expanded V_IH Input Range Allows Direct Interface to Lower Voltage Chips, (No Translator Needed)
• Low ICCT Feature Saves Power when Interfacing with Low-Voltage Chips
• One Input Reset Pin
• Open-Drain Output Pin with Fixed 400ms Pulse
• 1.8V to 5.0V Operation (T_A=-40°C to +85°C)
• 1.7V to 5.0V Operation (T_A=-25°C to +85°C)
• 1.65V to 5.0V Operation (T_A=0°C to +85°C)
• <1µA I_CCQ Consumption
• Zero-Second Test Mode Enable