TPS66021YBGR - 20V Sink, 5V Source USB-C Switch | TI
Référence : TPS66021YBGR ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $0.7094 | $0,71 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1 000 | $0 | $0,00 |
TPS66021YBGR Présentation
A USB-C power-path multiplexer is a specialized power-management integrated circuit that controls current between a connector and internal supply rails. It belongs to the hierarchy power multiplexer, power-path controller, power-management IC, and semiconductor. By combining source and sink switching, it can route external VBUS power into a system, provide regulated 5V power from an internal source, and isolate paths during faults or operating-mode changes.
The verified manufacturer data identifies a 4V-to-22V sink power path and a 5V source path. The source path enters constant-current operation when its load exceeds the selected current-limit threshold. Each path includes overtemperature and reverse-current protection, while the family supports a fault indication for overcurrent and overtemperature events. The integrated high-voltage VBUS LDO provides 5V for this device and other system components under dead-battery conditions.
The TPS66021 integrates a 20V USB-C sink capability and 5V source capability rather than acting only as a passive analog switch. Its VBUS-side architecture allows the system to distinguish and control external power conditions, while the source path supplies a defined output level. The fault function gives the host circuitry a signal when protection circuitry has detected an abnormal event, enabling controlled shutdown or fault recovery.
Typical uses include USB-C laptop and tablet power adapters, portable equipment, battery-powered industrial products, and compact systems that must accept external USB-C power while retaining a safe internal 5V supply. The integrated source, sink, and dead-battery functions can reduce board area compared with a discrete switch network. Designers must still validate connector orientation, CC behavior, capacitor selection, current limits, thermal performance, and system power sequencing against the full manufacturer documentation.
For PCB layout, follow the manufacturer package land pattern and place high-current input, output, and ground connections with short, wide paths. Place required input and output capacitors close to their associated balls and keep sensitive control and fault traces away from high-di/dt power loops. Verify the selected current threshold, startup behavior, and fault response in the final USB-C system.
This page consolidates verified manufacturer descriptions, distributor availability, package information, replacement evidence, and application guidance. It also distinguishes confirmed facts from parameters that require the complete datasheet, preventing unsupported electrical or compliance assumptions during design review.
Alternatives de remplacement direct pour TPS66021YBGR — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
Aucune alternative de remplacement direct disponible pour ce produit.
Demander des alternativesTPS66021YBGR Valeurs maximales et caractéristiques électriques
| Product Type | USB-C Power Delivery source and sink power multiplexer |
| Number of Channels | 1 channel |
| Sink Power-Path Voltage | 4 V to 22 V |
| Source Power-Path Voltage | 5 V |
| Dead-Battery VBUS LDO Output | 5 V |
| Source Current-Limit Control | Constant-current mode above the selected current-limit threshold |
| Overtemperature Protection | Supported on each power path |
| Reverse-Current Protection | Supported on each power path |
| Fault Output | Indicates overcurrent and overtemperature events |
| Dead-Battery Operation | Supported |
| Package Type | 28-DSBGA |
| Package Dimensions | 1.61 mm x 2.81 mm |
| Type de montage | Surface mount |
| USB-C Interface | USB-C Power Delivery |
| Sink Capability | 20 V sink |
| Source Capability | 5 V source |
| Product Description Classification | Analog switch, special purpose |
Guide de configuration des broches du TPS66021YBGR 1.61 mm x 2.81 mm
Configuration des broches du TPS66021YBGR (boîtier 1.61 mm x 2.81 mm). La numérotation des broches, les fonctions et les schémas de connexion sont définis dans la fiche technique du fabricant. Consultez-la pour l'empreinte exacte et les directives de soudage.
Aucune donnée de brochage détaillée disponible pour TPS66021YBGR.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
TPS66021YBGR convient pour 6 applications: USB-C Laptop Power Adapter, Battery-Powered Portable Device, USB-C Charging Power Path, Industrial Control Module, USB-C Docking Peripheral, USB-C Power-Path Protection.
USB-C Laptop Power Adapter
TPS66021YBGR fits a compact USB-C adapter that must accept external power while controlling a defined 5V source path and reporting faults. Its 4V-to-22V sink path covers a broad input range, while the integrated 5V dead-battery VBUS LDO supports auxiliary system startup. The source path moves into constant-current operation above the selected limit, helping protect an over-demand condition. Validate the exact input current, CC behavior, connector ratings, and thermal performance in the final adapter.
Battery-Powered Portable Device
The TPS66021YBGR is useful in battery-powered equipment where USB-C is one of several possible power sources and system startup must continue during dead-battery conditions. The integrated 5V VBUS LDO supplies the device and selected system components, while reverse-current protection helps isolate paths when power sources change. Designers should confirm whether the required source and sink thresholds match the portable product's charger, battery, and USB-C controller rather than assuming universal behavior.
USB-C Charging Power Path
For a charging power-path design, the TPS66021YBGR can manage external USB-C input through a 4V-to-22V sink path and provide controlled 5V source behavior for downstream circuitry. Overtemperature and reverse-current protection are valuable when cable removal, load transients, or connector faults occur. The fault signal allows a controller to react to overcurrent or heat events. Battery chemistry, charge current, input limits, and system sequencing still require separate application engineering.
Industrial Control Module
An industrial control module with USB-C service or update power can benefit from the TPS66021YBGR's integrated multiplexing and dead-battery support. The 5V VBUS LDO helps preserve controlled operation when the main supply is unavailable, and the fault output provides an event signal for system diagnostics. A production design should verify industrial temperature limits, transient immunity, grounding, connector retention, and protection coordination because those values are not present in the supplied verified excerpts.
USB-C Docking Peripheral
TPS66021YBGR can support a peripheral that must accept bus power while offering a controlled 5V source path during alternate operating conditions. The compact 28-DSBGA package is useful where connector placement and board area are constrained. Place input, output, and ground balls on short, wide routes, then validate the USB-C role, advertised current, startup sequence, and cable-removal behavior. The integrated fault indication can support recovery logic in the peripheral controller.
USB-C Power-Path Protection
The TPS66021YBGR is applicable where reverse-current blocking and controlled current limiting are more important than a simple mechanical switch. Each power path includes reverse-current and overtemperature protection, while the source path transitions to constant-current operation above the selected threshold. These functions help contain fault conditions in a USB-C connection. Final protection depends on correct PCB layout, capacitor selection, thermal analysis, and coordinated host or charger behavior.
Données de référence d'ingénierie pour TPS66021YBGR — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit |
|---|---|
| Package | 28-DSBGA (1.61 mm x 2.81 mm) |
| Brand | Texas Instruments |
| Product Type | USB-C Power Delivery source and sink power multiplexer |
| Sink Path Voltage | 4 V to 22 V |
| Source Path Voltage | 5 V |
| Dead-Battery VBUS LDO | 5 V |
| Current-Limit Behavior | Constant-current operation above selected threshold |
| Protection | Overtemperature and reverse-current protection on each path |
| Fault Indication | Overcurrent and overtemperature fault signal |
Principaux différenciateurs
- Combines 20V sink, 5V source, and dead-battery LDO functions (vs Generic USB-C power switch)
- Provides fault visibility for abnormal power conditions (vs Unprotected discrete switch implementation)
- Includes protection on both power paths (vs Simplified single-path switch)
Notes de conception
Use the manufacturer land pattern and route high-current VBUS, source, sink, and ground balls with short, wide copper paths. Place required input and output capacitors close to the associated device balls so switching and fault transients do not travel through long loops. The 28-DSBGA footprint is small, so inspect assembly clearances, via placement, and solder-mask-defined geometry against the official package drawing before release to fabrication.
Validate the source current-limit setting against the selected USB-C role, connector rating, cable loss, downstream load, and charger requirements. The verified manufacturer description states that the source path enters constant-current mode when the load exceeds the selected threshold, but the exact threshold range and timing are not included in the supplied data. Confirm those values in the manufacturer datasheet and test abnormal-load behavior before production.
Calculate worst-case dissipation from the actual voltage drop and current on each selected power path, then verify the 28-DSBGA thermal performance using the manufacturer's layout and test conditions. Overtemperature protection is confirmed, but it is not a substitute for thermal design. Keep heat-generating current paths away from sensitive control areas and use exposed copper or board thermal features where the package documentation recommends them.
Informations de conformité
Compliance status was not included in the verified web snippets. Obtain the current manufacturer product documentation and supplier declarations before making a compliance claim.
