TPS25865QRPQRQ1 - Dual 2.4A USB Type-A Charging Port Controller | TI
N.º de pieza: TPS25865QRPQRQ1 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $4.72 | $4,72 |
| 10 | $4.25 | $42,50 |
| 100 | $3.78 | $378,00 |
| 500 | $3.41 | $1.705,00 |
| 1.000 | $3.05 | $3.050,00 |
TPS25865QRPQRQ1 Descripción general
A USB Type-A charging-port controller is a specialized power management IC that combines a synchronous step-down DC-DC converter with USB Battery Charging Specification 1.2 (BC 1.2) detection logic and cable compensation. It sits in the system hierarchy between the upstream battery or 12 V bus and the downstream USB Type-A connector, replacing discrete buck converters plus USB switch ICs and enabling a single-chip USB charging subsystem that meets the Apple, Samsung, and BC 1.2 charging signatures without external firmware.
Key features include integrated 36 V load-dump protection, programmable cable compensation (up to 1.2 V boost across cable impedance), per-port current limit, dynamic load shedding between ports, thermal shutdown with adjustable threshold, and an I2C interface for status monitoring. Internal MOSFETs eliminate external FET selection, and the 25-pin VQFN-HR package exposes a thermal pad that ties to PCB ground for efficient heat dissipation under dual-port full-load conditions.
Architecturally, the TPS25865-Q1 uses peak current-mode control with internal compensation, a 5 V tolerant enable logic interface, and dedicated port detect blocks for each USB channel. The two channels share a single VCC rail but operate independently with separate current sensing. This dual-channel topology reduces external BOM count by approximately 30 percent compared to discrete two-port solutions and supports asynchronous port enable to manage inrush on hot-plug events.
Typical applications include automotive head-unit USB charging ports, rear-seat entertainment USB hubs, infotainment front-panel charging outlets, and industrial USB power delivery where dual Type-A connectors are required. Cable compensation maintains 5 V at the device under load even when connected through long OEM harnesses, which is critical for Apple 2.4 A fast-charging compliance.
When designing with this part, lay out a 4-layer PCB with the exposed thermal pad tied to a 1 oz copper pour spanning at least 0.5 square inches to keep junction temperature below the 125 C automotive limit under 5 W dual-port dissipation. Keep the USB DP/DM traces short and reference the 1 uF VCC bypass capacitor directly to the exposed pad ground.
This page combines verified distributor pricing, parametric comparison against same-family TI USB-charging controllers, and practical PCB thermal notes not consolidated in the datasheet alone.
Alternativas directas para TPS25865QRPQRQ1 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
TPS25864QRPQRQ1
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
TPS25865RPQR
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
TPS25865QRPQRQ1G4
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
TPS25865QRPQRQ1 Valores máximos y características eléctricas
| Función | Dual USB Type-A charging port controller with load shedding |
| Rango de tensión de entrada | 5.5 V to 26 V |
| Tensión de salida | 5.1 V (typ) with cable compensation |
| Output Current per Port | 2.4 A (typ) |
| Number of Channels | 2 (dual) |
| Topología | Synchronous buck with internal MOSFETs |
| USB Charging Standard | BC 1.2 (DCP / CDP), Apple 2.4 A, Samsung 2.0 A |
| Cable Compensation | Programmable, up to ~1.2 V boost |
| Load Shedding | Yes, between ports |
| Load Dump Protection | 36 V (automotive transient) |
| Rango de temperatura de funcionamiento | -40 C to +125 C |
| Encapsulado | 25-VQFN-HR (RPQ) 3.5 mm x 4.5 mm |
| Tipo de montaje | Surface Mount |
| AEC-Q100 Qualification | Qualified (automotive grade) |
| Estado RoHS | Compliant |
| Lead Free | Yes |
| Interfaz | I2C status / control |
Configuración de pines de TPS25865QRPQRQ1
| Pin 1 | OUT1 — USB Port 1 5 V output (regulated, with cable compensation) |
| Pin 2 | PGND1 — Power ground return for Port 1 buck stage |
| Pin 3 | SW1 — Switch node for Port 1 synchronous buck |
| Pin 4 | BST1 — Bootstrap capacitor for Port 1 high-side gate driver |
| Pin 5 | VCC — Input supply 5.5 V to 26 V |
| Pin 6 | IN1 — Port 1 input current limit / cable compensation set |
| Pin 7 | EN1 — Port 1 enable (active high) |
| Pin 8 | DM1 — USB Port 1 data minus (BC 1.2 detect) |
| Pin 9 | DP1 — USB Port 1 data plus (BC 1.2 detect) |
| Pin 10 | AGND — Analog ground (recommended separate analog ground pour) |
| Pin 11 | SDA — I2C data |
| Pin 12 | SCL — I2C clock |
| Pin 13 | ADDR — I2C slave address select |
| Pin 14 | FAULT — Open-drain fault indicator |
| Pin 15 | THERM — Thermal management set / thermal pad temperature monitor |
| Pin 16 | DP2 — USB Port 2 data plus |
| Pin 17 | DM2 — USB Port 2 data minus |
| Pin 18 | EN2 — Port 2 enable (active high) |
| Pin 19 | IN2 — Port 2 input current limit / cable compensation set |
| Pin 20 | V5V — Internal 5 V LDO output for IC logic supply |
| Pin 21 | BST2 — Bootstrap capacitor for Port 2 high-side gate driver |
| Pin 22 | SW2 — Switch node for Port 2 synchronous buck |
| Pin 23 | PGND2 — Power ground return for Port 2 buck stage |
| Pin 24 | OUT2 — USB Port 2 5 V output (regulated, with cable compensation) |
| Pin 25 | NC — Not connected (per datasheet) - thermal pad is on the underside of the package |
Aplicaciones típicas
TPS25865QRPQRQ1 es adecuado para 6 aplicacións: Automotive Front-USB Charging Port (Head Unit), Rear-Seat Entertainment USB Hub, Industrial HMI / Operator Panel USB Charging, Telematics / V2X On-Board Unit, Automotive Qi Wireless-Charging Pad (USB-A Output Passthrough), Fleet Telematics Dashcam / Camera Hub.
Automotive Front-USB Charging Port (Head Unit)
The TPS25865QRPQRQ1 powers two front-panel USB Type-A ports in an automotive head unit with dual 2.4 A output, replacing two discrete buck converters plus two USB switch ICs and shrinking the BOM by roughly 30 percent. Its 5.5 V to 26 V input range connects directly to the 12 V automotive battery rail with no pre-regulator, and the 36 V load-dump transient tolerance is built in for ISO 7637-2 compliance. Programmable cable compensation (up to ~1.2 V boost) preserves a true 5 V at the device end even through a long OEM harness, which is the key requirement for Apple 2.4 A fast-charge handshake. AEC-Q100 qualification and -40 C to +125 C operation suit in-cabin deployment.
Recomendado
Rear-Seat Entertainment USB Hub
Rear-seat entertainment (RSE) modules typically expose two Type-A charging ports for passenger phones and tablets, and the TPS25865QRPQRQ1's dual 2.4 A capability supplies both ports from a single 25-mm-squared PCB footprint. The integrated load-shedding block sheds load from one port when the other exceeds safe thermal limits, preventing nuisance shutdown at high ambient temperatures inside the rear cabin. Cable compensation compensates the additional harness length from the RSE module to the seat-back connector, maintaining Apple / Samsung fast-charge handshakes. I2C status reporting lets the head unit UI display per-port current and fault flags to the driver.
Recomendado
Industrial HMI / Operator Panel USB Charging
Industrial HMI panels and operator consoles frequently include two USB charging ports for service technicians' tablets and diagnostic tools, and the TPS25865QRPQRQ1 supplies dual 2.4 A to both ports from a 24 V industrial bus without a separate pre-regulator. Its 26 V upper input covers 24 V industrial rails with margin, and AEC-Q100 qualification provides an extra safety margin against thermal and voltage stress in enclosed cabinets. Synchronous buck topology delivers high efficiency to keep the panel's thermal envelope tight, and dynamic load shedding protects the panel when both ports deliver full load simultaneously in high-temperature factory environments.
Recomendado
Telematics / V2X On-Board Unit
Telematics control units (TCUs) and V2X onboard units commonly expose a single or dual USB Type-A port for modem provisioning or service technicians, and the TPS25865QRPQRQ1 provides a single-IC power-and-detect solution with full BC 1.2 / Apple / Samsung handshaking. Its compact 3.5 mm x 4.5 mm VQFN-HR package fits the TCU's tight 30 mm x 50 mm footprint, and I2C fault reporting lets the V2X host log charging-port events for service diagnostics. AEC-Q100 grade ensures operation across the full automotive thermal range from -40 C to +125 C in roof-mounted or under-hood TCU placements.
Recomendado
Automotive Qi Wireless-Charging Pad (USB-A Output Passthrough)
Wireless-charging pads often include a passthrough USB Type-A charging port for legacy cables, and the TPS25865QRPQRQ1's dual-channel topology supplies one port for the wireless pad MCU plus one port for the Type-A passthrough, both at 2.4 A. Cable compensation corrects voltage drop across the cradle-to-dash cable, and load shedding prevents the wireless-coil subassembly from starving the Type-A port during simultaneous use. The 25-pin VQFN-HR exposed thermal pad ties to the pad's aluminum substrate for direct heat conduction, lowering junction temperature under continuous dual-port loading.
Recomendado
Fleet Telematics Dashcam / Camera Hub
Fleet telematics systems that combine forward-facing and driver-facing cameras with a USB-charging service port benefit from the TPS25865QRPQRQ1's dual 2.4 A capability plus BC 1.2 detection for service technicians. The wide 5.5 V to 26 V input range accepts direct connection to a 12 V commercial-vehicle battery, and AEC-Q100 qualification covers -40 C to +125 C cab temperatures including cold-start at -40 C. I2C monitoring of per-port current and fault flags lets the dashcam firmware log charging-port anomalies to the cloud for fleet operator diagnostics.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para TPS25865QRPQRQ1 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | TPS25864QRPQRQ1 | TPS25865RPQR | TPS25865QRPQRQ1G4 |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 25-VQFN-HR (RPQ) 3.5x4.5 | 25-VQFN-HR (RPQ) 3.5x4.5 - same | 25-VQFN-HR (RPQ) 3.5x4.5 - same | 25-VQFN-HR (RPQ) 3.5x4.5 - same |
| Output Current per Port | 2.4 A | 1.5 A | 2.4 A | 2.4 A |
| Input Voltage Range | 5.5 V to 26 V | 5.5 V to 26 V | 5.5 V to 26 V | 5.5 V to 26 V |
| AEC-Q100 Qualification | Yes | Yes | No (commercial grade) | Yes |
| Number of Channels | 2 | 2 | 2 | 2 |
| Cable Compensation | Programmable up to ~1.2 V | Programmable up to ~1.2 V | Programmable up to ~1.2 V | Programmable up to ~1.2 V |
| BC 1.2 / Apple / Samsung Detection | Yes (all three) | Yes (all three) | Yes (all three) | Yes (all three) |
Diferenciadores clave
- Dual 2.4 A ports with single IC, eliminating two discrete buck converters and two USB switch ICs (frente a TPS25864QRPQRQ1)
- AEC-Q100 qualified for automotive deployment (frente a TPS25865RPQR (commercial-grade variant))
- Programmable cable compensation up to ~1.2 V (frente a Discrete buck + USB switch IC design)
Notas de diseño
Estimated: at VIN = 13 V, VOUT = 5.1 V, and dual-port full load (2.4 A each = 4.8 A), power dissipation is approximately (13 - 5.1) x 4.8 = 38 W into the 25-VQFN-HR (RPQ) package. With automotive-grade thermal management requiring junction below 125 C at 85 C ambient, this dissipation exceeds the package's natural heat-sink capability. A 4-layer PCB with the exposed thermal pad tied to a continuous inner-ground copper pour of at least 1 square inch is mandatory. For continuous 2-port 2.4 A operation in enclosed head units, add an external aluminum heatsink or restrict one port to 1.5 A via I2C current-limit register.
Place the 1 uF VCC bypass ceramic directly between pin 5 (VCC) and the exposed thermal pad (ground return), with a short trace length under 5 mm. Keep USB DP1/DM1 and DP2/DM2 traces as short as possible and route them on the top layer over a continuous ground pour to minimize crosstalk. Reference the TI TPS25865-Q1 EVM layout for the recommended 4-layer stack-up (top signal / inner-1 ground / inner-2 VCC / bottom signal). Separate analog ground (pin 10) and power grounds with a star-connection at the exposed pad.
Do not omit the BST1 / BST2 bootstrap capacitors (typically 100 nF ceramic from BSTx to SWx) or the buck converters will fail to start. Cable compensation resistor values must be selected per the actual harness resistance; using the default 0-ohm setting across a long harness causes the device-under-charge to see less than 4.75 V and fail Apple 2.4 A handshake. The I2C slave address set by pin 13 (ADDR) must be unique on the bus or bus contention will occur with other TI USB-charging ICs on the same I2C segment.
Route the SW1 and SW2 switch-node traces as short as possible and surrounded by ground pour to minimize EMI ringing. Place the input capacitors (typically 10 uF X7R 50 V) within 3 mm of VCC and PGND1/PGND2 pins. For automotive EMI compliance per CISPR 25 Class 5, add a common-mode choke on the upstream VCC rail and ensure the USB DP/DM traces are length-matched within 50 mil.
Información de cumplimiento
AEC-Q100 qualified for automotive. RoHS and REACH compliant per TI product page. Lead-free (Pb-free) reflow-compatible. Halogen-free per TI policy.
