ADN8833ACBZ-R7

ADN8833 is a monolithic H-bridge TEC driver with integrated 1A power MOSFETs. It has a linear power stage with the linear driver (LDR) output and a pulse-width modulation (PWM) power stage with the SW output. Depending on the control voltage at the CONT input, it drives current through a TEC to settle the temperature of a laser diode or a passive component attached to the TEC module to the programmed target temperature. The control voltage applied to the CONT input is generated by a digital-to-analogue converter closing the digital proportional, integral, derivative (PID) loop of temperature control system. The internal 2.5V reference voltage provides a 1% accurate output that is used to bias a voltage divider network to program the maximum TEC current and voltage limits for both the heating and cooling modes. It is used in applications such as TEC temperature control, optical modules, optical fibre amplifiers, optical networking systems, instruments requiring TEC temperature control.

• Patented high efficiency single inductor architecture
• Integrated low RDSON MOSFETs for TEC driver
• TEC voltage and current operation monitoring
• Independent TEC heating and cooling current limit settings
• Programmable maximum TEC voltage, 2MHz PWM driver switching frequency
• External synchronization, digital thermal control loop compatible
• 2.50V reference output with 1% accuracy
• Supply current is 2.1mA typical at (VIN = 2.7V to 5.5V)
• Operating temperature is -40°C to +125°C
• Package style is 25-ball wafer level chip scale [WLCSP]

Uwagi

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