Texas Instruments CCBTLV3861IPWRG4Q1

Overview

CCBTLV3861IPWRG4Q1 from Texas Instruments is an automotive-qualified 10-bit FET bus switch with 5-Ω on-state resistance, rail-to-rail switching capability, and I_off support for partial-power-down operation. It operates from 2.3 V to 3.6 V and delivers sub-nanosecond propagation delay (0.15 ns typical at 2.5 V) in TSSOP-24 packaging, enabling high-speed data path isolation in automotive infotainment backplanes.

For engineers reviewing the CCBTLV3861IPWRG4Q1 datasheet, CCBTLV3861IPWRG4Q1 pinout, CCBTLV3861IPWRG4Q1 application, or CCBTLV3861IPWRG4Q1 equivalent, key selection criteria include its 10-bit flowthrough architecture, −40°C to 85°C automotive temperature range, I_off current ≤10 μA at V_CC = 0 V, and guaranteed latch-up immunity >100 mA per JESD 78 Class II.

Technical Context

This device implements a 10-bit, single-pole single-throw (SPST) FET-based bus switch with true bidirectional signal routing between Port A and Port B. Its OE-controlled switching logic provides low-latency enable/disable transitions (t_en ≤ 5.5 ns, t_dis ≤ 5.8 ns at 3.3 V), and the flowthrough pinout minimizes PCB trace skew across all 10 channels.

The switch uses NMOS pass transistors with gate drive referenced to V_CC, enabling rail-to-rail analog/digital signal handling up to 3.6 V. I_off protection ensures no backflow current when V_CC = 0 V and any I/O is biased between 0 V and 3.6 V - critical for hot-swap and power sequencing in ADAS domain controllers.

Key Specifications

Pinout & Package

TSSOP-24 package (PW), 7.8 mm × 4.4 mm × 1.2 mm max height, with exposed thermal pad (non-electrical), moisture sensitivity level 1 (260°C peak reflow).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar bus switch applications.

Compared with SN74CBTLV3861QPWRQ1, CCBTLV3861IPWRG4Q1 offers identical switching performance but with G4-level process traceability and tighter MSL1 reflow control; versus TS3USB30EVMRQ1, it provides 10× channel count, 40% lower r_on, and verified I_off behavior essential for automotive power sequencing.

Availability

CCBTLV3861IPWRG4Q1 is available at Aetrix Electronics and suitable for automotive infotainment backplanes, ADAS camera interface multiplexing, and body control module bus expansion requiring stable component supply across extended production lifecycles.

Supply support for CCBTLV3861IPWRG4Q1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for automotive, industrial, and personal electronics markets.

The SN74CBTLV3861-Q1 product line delivers low-voltage, high-speed bus switches optimized for automotive signal routing where power sequencing, latch-up immunity, and AEC-Q100 compliance are mandatory design requirements.

FAQ

What is the maximum data rate supported by CCBTLV3861IPWRG4Q1?

The CCBTLV3861IPWRG4Q1 does not specify a maximum data rate in Mbps/Gbps, but its 0.15 ns typical propagation delay and 5 pF off-capacitance enable reliable operation with NRZ signals up to 100 MHz clock rates in parallel bus configurations. System-level data rate depends on trace impedance, load capacitance, and driver strength - the CCBTLV3861IPWRG4Q1 itself introduces negligible timing uncertainty.

Does CCBTLV3861IPWRG4Q1 support hot-swap operation?

Yes, CCBTLV3861IPWRG4Q1 supports hot-swap operation via its I_off feature: when V_CC = 0 V, leakage current remains ≤10 μA even if A/B pins are biased from 0 V to 3.6 V. This prevents backfeed into unpowered domains - a key requirement for hot-pluggable modules in automotive gateways and telematics units using the CCBTLV3861IPWRG4Q1.

What is the recommended pullup resistor value for OE on CCBTLV3861IPWRG4Q1?

Texas Instruments recommends tying OE to V_CC through a pullup resistor to ensure high-impedance state during power-up/power-down. The minimum value is determined by the current-sinking capability of the driving source; for standard CMOS drivers, a 10-kΩ resistor is typical. The CCBTLV3861IPWRG4Q1 OE input draws ≤1 μA, so values from 4.7 kΩ to 100 kΩ maintain valid logic levels while minimizing quiescent current.

Is CCBTLV3861IPWRG4Q1 pin-compatible with non-automotive versions like SN74CBTLV3861?

Yes, CCBTLV3861IPWRG4Q1 shares identical pinout, electrical characteristics, and package (TSSOP-24) with SN74CBTLV3861 and SN74CBTLV3861QPWRQ1. All variants use the same CL3861Q1 top-side marking and DW/PW footprint. However, only CCBTLV3861IPWRG4Q1 and SN74CBTLV3861QPWRQ1 are AEC-Q100 qualified - the commercial SN74CBTLV3861 lacks automotive stress testing and traceability.

How does the flowthrough architecture of CCBTLV3861IPWRG4Q1 improve PCB layout?

The flowthrough architecture of CCBTLV3861IPWRG4Q1 places A1–A10 on pins 2–11 and B1–B10 on pins 15–23, enabling straight-through trace routing with matched lengths and minimal layer transitions. This reduces differential skew below 10 ps across all 10 channels - directly improving timing margin in high-speed parallel interfaces such as legacy display buses or sensor data aggregation paths using the CCBTLV3861IPWRG4Q1.