GENERAL DESCRIPTION
In the CC mode, the output current variation is less than ±4% of the nominal value which can be set up to 1.5A by the current sensing resistor. In the CV mode, the feedback voltage is controlled within ±2%. In the PT1115, output cable wire resistance compensation, is implemented to offset up to 600mV voltage drop along the cable. The amount of compensation can be programmed by an external resistor based on the cable resistance. The PT1115 based system can achieve better EMI performance because of spread spectrum. The PT1115 provides protections of over-voltage, under-voltage lockout, short-ground, peak current limit, and over-temperature shutdown to guarantee safe applications under extreme conditions. The PT1115 is available in a SOP-8 package FEATURES
z z z z z z z z z z z z z z z z 7.2~35V operating input voltage range 700 kHz fixed switching frequency. PWM control ±4% output current accuracy in the CC mode 0.5~1.5A output current set by a small current sensing resistor ±2% feedback voltage accuracy in the CV mode Cable wire resistance compensation.
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