The ICL7665OPA is a monolithic CMOS micropower undervoltage detector and voltage level translator manufactured by Intersil (now Renesas). It is designed to monitor a voltage level and provide an output signal when the voltage falls below a preset threshold. It is also capable of translating logic levels between different voltage domains.

Applications:

• Battery monitoring in portable devices
• Undervoltage lockout circuits for microprocessors
• Power-on reset circuits
• Voltage level translation between logic families
• Power failure detection
• Memory backup switching

Features:

• Micropower Operation (10µA typ)
• Adjustable Threshold Voltage (using external resistors)
• Hysteresis (prevents oscillation near the threshold)
• Open-Drain Output (allows for wired-OR configurations)
• Wide Input Voltage Range (1.6V to 16V)
• High Output Current Sink Capability

Benefits:

• Extended battery life in portable applications due to micropower operation.
• Flexible threshold voltage setting for various application needs.
• Stable and reliable operation near the threshold voltage.
• Easy interface to various logic levels with open-drain output.
• Wide range of detectable voltages.

Additional Details:

The ICL7665OPA is available in an 8-pin PDIP (Plastic Dual In-line Package). The operating temperature range is typically 0°C to +70°C. The threshold voltage can be adjusted using external resistors connected to the threshold adjust pin. The device includes built-in hysteresis to prevent oscillation near the threshold. The open-drain output allows for level translation and wired-OR functionality. The output can sink up to 10mA. The supply voltage range is 1.6V to 16V.