DESCRIPTION

· The LM26 is a precision, single digital-output, low-power thermostat with an internal comparator, reference, DAC, temperature sensor, and comparator.

· It features factory-programmable trip points and digital output functionality, with a trip point range of -55°C to 110°C in 1°C increments.

· The device includes one digital output (OS/OS/US/US), one digital input (HYST), and one analog output (VTEMP).

· The digital output can be preset as open-drain or push-pull and can indicate over-temperature or under-temperature shutdown events.

· The VTEMP output provides a voltage proportional to temperature with a -10.82 mV/°C slope.

FEATURES

· Internal comparator with pin-programmable 2°C or 10°C hysteresis.

· No external components required.

· Open-drain or push-pull digital output supporting CMOS logic levels.

· Internal temperature sensor with VTEMP output for system testing.

· Internal voltage reference and DAC for trip-point setting.

· Available in 5-pin SOT-23 plastic package.

· Excellent power supply noise rejection.

· UL recognized component.

· Power supply voltage range: 2.7V to 5.5V.

· Power supply current: 40μA (maximum), 16μA (typical).

APPLICATIONS

· Microprocessor thermal management.

· Appliances.

· Portable battery-powered systems.

· Fan control.

· Industrial process control.

· HVAC systems.

· Remote temperature sensing.

· Electronic system protection.