TPS40192
4,5-V- bis 18-V-, 20-A-, 600-kHz-Synchron-Abwärtsregler mit Power-Good-
Eine neuere Version dieses Produkts ist verfügbar
Ähnliche Funktionalität wie verglichener Baustein
TPS40192
- Input Operating Voltage Range: 4.5 V to 18 V
- Up to 20-A Output Currents
- Supports Pre-Biased Outputs
- 0.5%, 591-mV Reference
- Switching Frequency
- TPS40192: 600 kHz
- TPS40193: 300 kHz
- Three Selectable Thermally Compensated Short-Circuit Protection Levels
- Hiccup Restart from Faults
- Internal 5-V Regulator
- High-Side and Low-Side MOSFET ON-resistance (RDS(on)) Current Sensing
- 10-Pin 3 mm × 3 mm SON Package
- Internal 4-ms Soft-Start Time
- Thermal Shutdown Protection at 145°C
TPS40192 and TPS40193 are cost-optimized synchronous buck controllers that operate from 4.5 V to 18 V input. These controllers implement a voltage-mode control architecture with the switching frequency fixed at either 600 kHz (TPS40192) or 300 kHz (TPS40193). The higher switching frequency facilitates the use of smaller inductor and output capacitors, thereby providing a compact power-supply solution. An adaptive anti-cross conduction scheme is used to prevent shoot through current in the power FETs.
Short circuit detection is done by sensing the voltage drop across the low-side MOSFET when it is on and comparing it with a user selected threshold of 100 mV, 200 mV or 280 mV. The threshold is set with a single external resistor connected from COMP to GND. This resistor is sensed at startup and the selected threshold is latched. Pulse-by-pulse limiting (to prevent current runaway) is provided by sensing the voltage across the high-side MOSFET when it is on and terminating the cycle when the voltage drop rises above a fixed threshold of 550 mV. When the controller senses an output short circuit, both MOSFETs are turned off and a timeout period is observed before attempting to restart. This behavior provides limited power dissipation in the event of a sustained fault.
Technische Dokumentation
Typ | Titel | Datum | ||
---|---|---|---|---|
* | Data sheet | TPS4019x 4.5-V to 18-V Input, Voltage-Mode, Synchronous Buck Controller With Power Good datasheet (Rev. H) | PDF | HTML | 23 Mai 2019 |
Selection guide | Power Management Guide 2018 (Rev. R) | 25 Jun 2018 | ||
Selection guide | DC/DC Buck Controller Solutions Selection Guide | 06 Feb 2018 | ||
Application note | Not All Jitter Is Created Equal (Rev. A) | 04 Jul 2015 | ||
Application note | Enabling Multiple TPS4019x Devices | 29 Mär 2012 | ||
Application note | 'C6472 12Vin Flexible Pwr Design Using DCDC Controllers and LDOs (8x C6472) | 26 Mär 2010 | ||
Application note | Power Reference Design for the 'C6472, 12V DCDC Controllers, and LDOs | 26 Mär 2010 | ||
Application note | TMS320C6472 5V Input Pwr Design, Integrated FET DC/DC Converters and Controllers | 26 Mär 2010 | ||
EVM User's guide | Using the TPS40192EVM-525 | 20 Nov 2009 | ||
Application note | 5Vin DM643x Power using DC/DC Controllers and LDO | 09 Okt 2008 | ||
EVM User's guide | Using the TPS40192EVM-001 | 29 Jan 2007 |
Design und Entwicklung
Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.
TPS40192 TINA-TI Average Reference Design (Rev. A)
Gehäuse | Pins | CAD-Symbole, Footprints und 3D-Modelle |
---|---|---|
VSON (DRC) | 10 | Ultra Librarian |
Bestellen & Qualität
- RoHS
- REACH
- Bausteinkennzeichnung
- Blei-Finish/Ball-Material
- MSL-Rating / Spitzenrückfluss
- MTBF-/FIT-Schätzungen
- Materialinhalt
- Qualifikationszusammenfassung
- Kontinuierliches Zuverlässigkeitsmonitoring
- Werksstandort
- Montagestandort
Support und Schulungen
TI E2E™-Foren mit technischem Support von TI-Ingenieuren
Inhalte werden ohne Gewähr von TI und der Community bereitgestellt. Sie stellen keine Spezifikationen von TI dar. Siehe Nutzungsbedingungen.
Bei Fragen zu den Themen Qualität, Gehäuse oder Bestellung von TI-Produkten siehe TI-Support.