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STV8131 Datasheet(PDF) 2 Page - STMicroelectronics |
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STV8131 Datasheet(HTML) 2 Page - STMicroelectronics |
2 / 5 page STV8131 2/5 Figure 2. Block Diagram CIRCUIT DESCRIPTION The STV8131 is a dual voltage regulator with sep- arate Disable for each output. The two regulation parts are supplied from one voltage reference circuit trimmed by zener zap during EWS test. Since the supply voltage of this last is connected at Pin 1 (VIN1), the regulator 2 will not work if Pin 1 is not supplied. The outputs stage have been realized in darlington configuration with a drop typical 1.2V. For each output a disable circuit switches-off this output if a voltage lower than 0.8V is applied at corresponding Pin (Pin 3 for output 2, Pin 5 for out- put 1). ABSOLUTE MAXIMUM RATINGS THERMAL DATA 1 2 3 4 5 6 7 REFERENCE OUTPUT 1 OUTPUT 2 PROTECTION DISABLE DISABLE STV8131 OUTPUT 2 OUTPUT 1 DISABLE DISABLE INPUT 1 INPUT 2 Symbol Parameter Value Unit VIN DC Input Voltage Pin 1 20 V VDIS Disable Input Voltage Pin 3-5 20 V IO1, 2 Output Currents Internally Limited Pt Power Dissipation Internally Limited TSTG Storage Temperature - 65 to + 150 °C TJ unction Temperature 0 to + 150 °C Symbol Parameter Value Unit RTH(j-c) Thermal Resistance Junction-case Max. 3 °C/W TJ Recommended Junction Temperature Max. 130 °C 1 |
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