Datasheet L99VR01 (STMicroelectronics) - 4
| Hersteller | STMicroelectronics |
| Beschreibung | Automotive Linear Voltage Regulator with Configurable Output Voltage having 200mA current capability |
| Seiten / Seite | 47 / 4 — L99VR01. Block diagram and pins description. Figure 2. Functional block … |
| Dateiformat / Größe | PDF / 3.9 Mb |
| Dokumentensprache | Englisch |
L99VR01. Block diagram and pins description. Figure 2. Functional block diagram of L99VR01J. Table 1. Pins description
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L99VR01 Block diagram and pins description Figure 2. Functional block diagram of L99VR01J Table 1. Pins description PowerSSO-12 Pin name SO-8 pin Function pin
Supply voltage. VS 1 1 Block directly to ground with ceramic capacitor ≥ 4.7 µF and a 100 nF capacitator as close as possible to the pin SEL1 2 2 SEL2 3 3 Output voltage selectors. SEL3 4 4 Advanced thermal warning output. If the device detects a junction temperature above the warning TW 5 threshold, the pin is pulled low. If an overvoltage condition occurs, a square wave is provided through the TW output. Leave floating if not used. I Programmable short circuit output current input pin. A resistor between Short 6 Ishort pin and GND sets the short circuit output current value. Enable input. With the Enable high, regulator, watchdog and reset are operating. EN 5 7 With the Enable low, regulator, watchdog and reset are shutdown, while the fast discharge circuit is turned on. Connect the Enable to Vs to keep the device always enabled GND 6 8 Ground reference. Watchdog timer adjust. VCW 9 A capacitor between VCW pin and GND sets the time response of the watchdog monitor (just for L99VR01J).
DS13649
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Rev 2 page 4/47
Document Outline Cover image Product status link / summary Features Description 1 Block diagram and pins description 2 Electrical specifications 2.1 Absolute maximum ratings 2.2 Thermal data 2.2.1 Thermal resistance 2.2.2 Thermal protection 2.3 Electrical characteristics 2.4 Electrical characteristics curves 3 Test circuit and waveforms plot 3.1 Load regulation 4 Application information 4.1 Voltage regulator 4.2 Output current limitation 4.3 Output voltage selection 4.4 Enable 4.5 Reset 4.6 Autonomous watchdog 4.7 Thermal warning and thermal shutdown 4.8 Overvoltage detection by advanced thermal warning read-out 4.9 Fast output discharge 4.10 Undervoltage lockout UVLO 4.11 Functional safety management 5 Application 6 Package and PCB thermal data 6.1 PowerSSO-12 Thermal data 6.2 SO-8 thermal data 7 Package information 7.1 PowerSSO-12 package information 7.2 SO-8 package information 7.3 PowerSSO-12 packaging information 7.4 SO-8 packaging information 8 Order codes Revision history Contents List of tables List of figures
Supply voltage. VS 1 1 Block directly to ground with ceramic capacitor ≥ 4.7 µF and a 100 nF capacitator as close as possible to the pin SEL1 2 2 SEL2 3 3 Output voltage selectors. SEL3 4 4 Advanced thermal warning output. If the device detects a junction temperature above the warning TW 5 threshold, the pin is pulled low. If an overvoltage condition occurs, a square wave is provided through the TW output. Leave floating if not used. I Programmable short circuit output current input pin. A resistor between Short 6 Ishort pin and GND sets the short circuit output current value. Enable input. With the Enable high, regulator, watchdog and reset are operating. EN 5 7 With the Enable low, regulator, watchdog and reset are shutdown, while the fast discharge circuit is turned on. Connect the Enable to Vs to keep the device always enabled GND 6 8 Ground reference. Watchdog timer adjust. VCW 9 A capacitor between VCW pin and GND sets the time response of the watchdog monitor (just for L99VR01J).
DS13649
-
Rev 2 page 4/47
Document Outline Cover image Product status link / summary Features Description 1 Block diagram and pins description 2 Electrical specifications 2.1 Absolute maximum ratings 2.2 Thermal data 2.2.1 Thermal resistance 2.2.2 Thermal protection 2.3 Electrical characteristics 2.4 Electrical characteristics curves 3 Test circuit and waveforms plot 3.1 Load regulation 4 Application information 4.1 Voltage regulator 4.2 Output current limitation 4.3 Output voltage selection 4.4 Enable 4.5 Reset 4.6 Autonomous watchdog 4.7 Thermal warning and thermal shutdown 4.8 Overvoltage detection by advanced thermal warning read-out 4.9 Fast output discharge 4.10 Undervoltage lockout UVLO 4.11 Functional safety management 5 Application 6 Package and PCB thermal data 6.1 PowerSSO-12 Thermal data 6.2 SO-8 thermal data 7 Package information 7.1 PowerSSO-12 package information 7.2 SO-8 package information 7.3 PowerSSO-12 packaging information 7.4 SO-8 packaging information 8 Order codes Revision history Contents List of tables List of figures