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Texas Instruments TPS62125DSG | Demoboard TIDA-010026
Robust interface reference design for EnDat2.2 absolute encoders
Details
| Topologie | Abwärtswandler |
| Eingangsspannung | 3-17 V |
| Ausgang 1 | 10 V / 0.3 A |
| IC-Revision | E1 |
Beschreibung
The TPS62125 device is a high-efficiency synchronous step-down converter optimized for low and ultralow power applications providing up to 300-mA output current. The wide input voltage range of 3 V to 17 V supports 4-cell alkaline and 1- to 4-cell Li-Ion batteries in series configuration as well as 9-V to 15-V powered applications. The device includes a precise low-power enable comparator which can be used as an input supply voltage supervisor (SVS) to address system specific power-up and power-down requirements. The enable comparator consumes only 6-µA quiescent current and features an accurate threshold of 1.2 V typical as well as an adjustable hysteresis. With this feature, the converter can generate a power supply rail by extracting energy from a storage capacitor fed from high impedance sources such as solar panels or current loops. With its DCS-Control scheme the converter provides power-save mode operation to maintain highest efficiency over the entire load current range. At light loads the converter operates in pulse frequency modulation (PFM) mode and transitions seamlessly and automatically in pulse width modulation (PWM) mode at higher load currents. The DCS-Control™ scheme is optimized for low-output ripple voltage in PFM mode in order to reduce output noise to a minimum and features excellent AC load regulation. An open-drain power good output indicates once the output voltage is in regulation.
Eigenschaften
- Wide Input Voltage Range 3 V to 17 V
- Input Supply Voltage Supervisor (SVS) With Adjustable Threshold and Hysteresis Consuming Typical 6-µA Quiescent Current
- Wide Output Voltage Range 1.2 V to 10 V
- Typical 13-µA Quiescent Current
- 350-nA Typical Shutdown Current
- Seamless Power Save Mode Transition
- DCS-Control™ Scheme
- Low Output Ripple Voltage
- Up to 1-MHz Switching Frequency
- Highest Efficiency over Wide VIN and VOUT Range
- Pin to Pin Compatible with TPS62160/70
- 100% Duty Cycle Mode
- Power Good Open Drain Output
- Output Discharge Function
- Small 2-mm × 2-mm 8-pin WSON Package
Typische Anwendungen
- 9-V to 15-V Standby Power Supply / Inverter (Negative VOUT)
- 4-Cell Alkaline, 1- to 4-Cell Li-Ion Battery-Powered Applications / Energy Harvesting
- Embedded Processing
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | λDom typ.(nm) | Emittierte Farbe | λPeak typ.(nm) | IV typ.(mcd) | VF typ.(V) | Chiptechnologie | 2θ50% typ.(°) | C | Tol. C | VR(V (DC)) | Bauform | Betriebstemperatur | DF(%) | RISO | Keramiktyp | L(mm) | B(mm) | H(mm) | Fl(mm) | Verpackung | L(µH) | IR(A) | ISAT(A) | RDC(mΩ) | fres(MHz) | Mittelstift Ø (Value)(mm) | Plug OD(mm) | Typ | Arbeitsspannung(V (DC)) | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WL-SMCW SMT Mono-color Chip LED Waterclear, 525 nm, Grün | Downloads27 Dateien Strahldaten
| Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWL-SMCW SMT Mono-color Chip LED Waterclear | dominante Wellenlänge [typ.]525 nm | Emittierte FarbeGrün | Spitzen-Wellenlänge [typ.]515 nm | Lichtstärke [typ.]430 mcd | Durchlassspannung [typ.]3.2 V | ChiptechnologieInGaN | Abstrahlwinkel Phi 0° [typ.]140 ° | – | – | – | Bauform0603 | Betriebstemperatur -40 °C up to +85 °C | – | – | – | Länge1.6 mm | Breite0.8 mm | Höhe0.7 mm | – | VerpackungTape and Reel | – | – | – | – | – | – | – | – | – | |||
 | WE-LQS SMT-Speicherdrossel, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-LQS SMT-Speicherdrossel | – | – | – | – | – | – | – | – | – | – | Bauform4018 | Betriebstemperatur -40 °C up to +125 °C | – | – | – | Länge4 mm | Breite4 mm | Höhe1.8 mm | – | – | Induktivität22 µH | Nennstrom0.7 A | Sättigungsstrom1.1 A | Gleichstromwiderstand290 mΩ | Eigenresonanzfrequenz23 MHz | – | – | – | – | ||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | Kapazität100 nF | Kapazität±10% | Nennspannung50 V (DC) | Bauform0603 | Betriebstemperatur -55 °C up to +125 °C | Verlustfaktor3 % | Isolationswiderstand5 GΩ | KeramiktypX7R Klasse II | Länge1.6 mm | Breite0.8 mm | Höhe0.8 mm | Pad Dimension0.4 mm | Verpackung7" Tape & Reel | – | – | – | – | – | – | – | – | – | |||||
 | WR-DC Power Jacks, –, – | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-DC Power Jacks | – | – | – | – | – | – | – | – | – | – | – | Betriebstemperatur -40 °C up to +85 °C | – | Isolationswiderstand100 MΩ | – | – | – | – | – | VerpackungTape and Reel | – | Nennstrom5 A | – | – | – | Mittelstift Ø2 mm | Recommended Plug outer Ø5.5 mm | TypAbgewinkelt | Arbeitsspannung24 V (DC) |