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TSM1051 Datasheet(PDF) 3 Page - STMicroelectronics |
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TSM1051 Datasheet(HTML) 3 Page - STMicroelectronics |
3 / 9 page TSM1051 3/9 OPERATING CONDITIONS ELECTRICAL CHARACTERISTICS Tamb = 25°C and Vcc = +5V (unless otherwise specified) Symbol Parameter Value Unit Vcc DC Supply Conditions 2.5 to 12 V Symbol Parameter Test Condition Min Typ Max Unit Total Current Consumption Icc Total Supply Current - not taking the output sinking current into account Tamb 0 < Tamb < 85°C 1.1 1.2 2mA Voltage Control Loop Gmv Transconduction Gain (Vctrl). Sink Current Only 1) 1. If the voltage on VCTRL (the negative input of the amplifier) is higher than the positive amplifier input (Vref=1.210V), and it is increased by 1mV, the sinking current at the output OUT will be increased by 3.5mA. Tamb 0 < Tamb < 85°C 1 3.5 2.5 mA/mV Vref Voltage Control Loop Reference 2) 2. The internal Voltage Reference is set at 1.210V (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. Tamb 0 < Tamb < 85°C 1.198 1.186 1.21 1.222 1.234 V Iibv Input Bias Current (Vctrl) Tamb 0 < Tamb < 85°C 50 100 nA Current Control Loop Gmi Transconduction Gain (Ictrl). Sink Current Only 3) 3. When the positive input at ICTRL is lower than -200mV, and the voltage is decreased by 1mV, the sinking current at the output OUT will be increased by 7mA. Tamb 0 < Tamb < 85°C 1.5 7 mA/mV Vsense Current Control Loop Reference 4) 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. Iout = 2.5mA Tamb 0 < Tamb < 85°C 196 192 200 204 208 mV Iibi Current out of pin ICTRL at -200mV Tamb 0 < Tamb < 85°C 25 50 µA Output Stage Vol Low output voltage at 10 mA sinking current Tamb 0 < Tamb < 85°C 200 mV Ios Output Short Circuit Current. Output to Vcc. Sink Current Only Tamb 0 < Tamb < 85°C 27 35 50 mA |
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