TPS40190
4,5 V bis 15 V, 20 A, Synchron-Abwärtsregler
Eine neuere Version dieses Produkts ist verfügbar
TPS40190
- Input Operating Voltage Range: 4.5 V to 15 V
- Reference 0.591 V ±1%
- Voltage Mode Control
- Internal 5-V Regulator For Internal Housekeeping, Driver Power and Light External Loads
- Selectable Short-Circuit Protection Thresholds
- Pre-Bias Ouput Safe
- Fixed Switching Frequency of 300 kHz
- Internal Soft Start
- Small 3 mm × 3 mm, 10-Pin SON Package
- Bootstrapped Drivers for N-Channel MOSFET
- Adaptive Anti-Cross Conduction
- Internal Bootstrap Diode
- 1.2-A Drivers for Decreased Switching Loss
The TPS40190 is a cost-optimized synchronous buck controller that operates from 4.5 V to 15 V nominally, and implements a fixed frequency voltage mode power supply. The controller uses an adaptive anti-cross conduction scheme to prevent both the high-side and the rectifier MOSFET to be turned on at the same time, preventing shoot through current in the two MOSFETs.
The controller also provides a short circuit protection threshold that is user selectable between one of three values. The protection level is set with a single external resistor connected from COMP to GND. During start-up, the impedance connected to COMP is sensed, and the information is decoded to select one of the three thresholds. When the controller senses an output short circuit, both MOSFETs are turned off and a timeout period is observed before attempting to restart. This provides limited power dissipation in the event of a sustained fault.
The TPS40190 provides strong drivers to minimize switching losses in the power stage, reducing heat build up in the MOSFETs and allowing larger MOSFETs to be used without undue switching time penalty.
Technische Dokumentation
Typ | Titel | Datum | ||
---|---|---|---|---|
* | Data sheet | TPS40190 4.5-V to 15-V Input, Voltage-Mode, Synchronous Buck Controller datasheet (Rev. D) | PDF | HTML | 06 Jun 2019 |
User guide | TPS40190 Buck Controller Evaluation Module User's Guide (Rev. A) | PDF | HTML | 10 Jan 2022 | |
Selection guide | Power Management Guide 2018 (Rev. R) | 25 Jun 2018 | ||
Application note | Enabling Multiple TPS4019x Devices | 29 Mär 2012 | ||
More literature | TPS40190DRC Test Report | 15 Feb 2008 |
Design und Entwicklung
Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.
TPS40190 TINA-TI Average Reference Design (Rev. C)
TPS40190 TINA-TI Average Spice Model (Rev. A)
TPS40190 TINA-TI Transient Reference Design (Rev. B)
TPS40190 TINA-TI Transient Spice Model (Rev. B)
TPS40190 Unencrypted PSpice Average Model Package (Rev. A)
TPS40190 Unencrypted PSpice Transient Model Package (Rev. D)
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.