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TS1052 Scheda tecnica(PDF) 2 Page - Taiwan Semiconductor Company, Ltd |
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TS1052 Scheda tecnica(HTML) 2 Page - Taiwan Semiconductor Company, Ltd |
2 / 8 page TS1052 Constant Voltage and Constant Current Controller For Battery Chargers and Adaptors 2/8 Version: A12 Absolute Maximum Rating Parameter Symbol Value Unit DC Supply Voltage VCC 20 V Input Voltage VIN -0.3 to VCC V Operating Temperature TOP 0 to +85 oC Maximum Junction Temperature Range TJ 150 oC Thermal Resistance Junction to Ambient R θja 250 oC/W Operating Condition Parameter Symbol Value Unit DC Supply Voltage VCC 2.5 to 18 V Electrical Specifications (TA=25 oC, V IN=5V unless otherwise noted) Note 1: If the Voltage on Vctrl (the negative input of the amplifier) is higher than the positive amplifier input (Vref- 1.21V), and it is increased by 1mV, the sinking current at the output will be increased by 3.5mA. Note 2: The internal Voltage reference is set at 1.21V (bandgap reference). The voltage control loop precision takes into account the cumulative effects of the internal voltage reference deviation as well as the input offset voltage of the trans-conductance operational amplifier. The internal voltage reference is fixed by bandgap, and trimmed to 0.5% accuracy at room temperature. Note 3: When the positive input at Ictrl is lower than -200mV, and the voltage is decreased by 1mV, the sinking current at the output will be increased by 7mA Note 4: The internal current sense threshold is set to -200mV. The current control loop precision takes into account the cumulative effects of the internal voltage reference deviation as well as the input offset voltage of the trans-conduction operational amplifier Parameter Symbol Min Typ Max Unit Total Current Consumption Total Supply Current – not taking the output sinking current into account ICC -- 1.1 2 mA Voltage Control Loop Trans-conduction Gain (Vctrl) sink Current Only (Note 1) GMW 1 3.5 -- mA/mV Voltage Control Loop Reference (Note 2) VREF 1.198 1.21 1.222 V Input Bias Current (Vctrl) IIBV -- 50 -- nA Current Control Loop Trans-conduction Gain (Ictrl) sink Current only (Note 3) GMI 1.5 7 -- mA/mV Current Control Loop Reference, (Note 4) IOUT=2.5A, VSENSE 196 200 204 mV Current Out of Pin Ictrl at – 200mV IIBI -- 25 -- µA Output Stage Low Output Voltage at 10mA sinking Current VOL -- 200 -- mV Output Short Circuit Current. Output to VCC. Sink Current Only IOS -- 27 50 mA |
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