HY5640

HY5640 TEC Controller Subminiature Controller for Thermoelectric Coolers The HY5640 is a subminiature temperature controller for thermoelectric coolers (TEC). This device is intended for “heat or cool” fixed temperature applications where front panel controls and digital readouts are not required. The HY5640 uses a thermistor bridge to precisely measure and regulate the temperature of a device affixed to a TEC. With proper heat sinking, the power stage of this device will deliver up to +/- 2 Amperes of current to a TEC. This controller was designed for single power suppply operation down to +5V. In addition, the device can be operated with dual supplies where VS can be as low as +3V and VDD as low as +5V. TEC Controllers Maximum ratings: Rating Supply Voltage 1 (Voltage on Pin 8) Supply Voltage 2 (Voltage on Pin 10) Current Sink (Heat and Cool Cycle) Maximum Power Dissipation Operating Temperature (Case) Storage Temperature Symbol V DD VS Is PMAX T MAX/MIN TSTG Value +20 +12 2.5 6 100/–20 –65 to +150 Unit Volts DC Volts DC Amperes Watts °C °C Features: ✦ ✦ ✦ ✦ ✦ ✦ ✦ ✦ Proportional/Integral (PI) control Small size Drive current to +/–2 amps Operation to 12 volts Control above/below ambient Temperature stability of 0.01°C Single supply operation Thru-hole or surface-mount packaging option Laser Diode Drivers Figure 1 400 Hot Springs Road, Carson City NV 89706 (775) 883-0820 Fax (775) 883-0827 www.hytek.com 1 Micro-heaters HY5640 TEC Controller Description of th...