Nexperia USA Inc. LSF0204PW-Q100J

Overview

LSF0204PW-Q100 from Nexperia is a 4-channel automotive-qualified bidirectional multi-voltage level translator supporting open-drain and push-pull interfaces. It enables voltage translation between 0.8 V–5.0 V domains without direction control, delivers ≤100 MHz up-translation and ≥100 MHz down-translation at ≤30 pF load, and operates across –40 °C to +125 °C for use in I²C, SMBus, and GPIO interconnects in engine control units.

For engineers reviewing the LSF0204PW-Q100 datasheet, LSF0204PW-Q100 pinout, LSF0204PW-Q100 application, or LSF0204PW-Q100 equivalent, key selection criteria include channel-wise independent voltage pairing (e.g., 1.2 V ↔ 3.3 V), AEC-Q100 Grade 1 qualification, EN-referenced enable logic, and low R_ON (≤7 Ω) for minimal signal distortion in high-speed automotive serial buses.

Technical Context

The LSF0204PW-Q100 implements passive MOSFET-based bidirectional translation with no internal direction pin: translation direction is determined dynamically by relative voltage levels on A-side and B-side pins. Its EN input is referenced to refA, enabling precise control of translation enablement within the lower-voltage domain.

It supports mixed-mode operation-simultaneous up-translation (e.g., 1.2 V → 3.3 V) and down-translation (e.g., 3.3 V → 1.2 V) across different channels-and maintains signal integrity via low ON-resistance (3–8 Ω typical), sub-5 ns propagation delays at 15 pF, and 5 V-tolerant I/O for TTL compatibility.

Key Specifications

Pinout & Package

TSSOP14 (SOT402-1) package: plastic thin shrink small outline, 14-lead, 4.4 mm body width, lead pitch 0.65 mm, suitable for automated SMT assembly and thermal cycling in automotive modules.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar bidirectional level translation applications.

Compared with TXS0104E-Q1 and SN74AVC4T245-Q1, the LSF0204PW-Q100 uniquely combines directionless operation, per-channel voltage configurability, 5 V I/O tolerance, and ultra-low standby current - making it optimal for space-constrained, thermally demanding automotive serial bus nodes where pin count and power efficiency are critical.

Availability

LSF0204PW-Q100 is available at Aetrix Electronics and suitable for automotive engine control units, ADAS camera modules, infotainment PMBus regulators, and body control module SMBus gateways requiring stable component supply across extended temperature and long product lifecycles.

Supply support for LSF0204PW-Q100 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

Nexperia is a leading semiconductor manufacturer specializing in high-performance, high-reliability logic, discrete, and MOSFET solutions, with global R&D and manufacturing facilities focused on automotive and industrial applications.

The LSF series targets automotive serial interface bridging, delivering robust, pin-efficient level translation for I²C, SMBus, MDIO, and GPIO interconnects where AEC-Q100 compliance and thermal resilience are mandatory.

FAQ

What is the maximum capacitive load supported at 100 MHz translation?

The LSF0204PW-Q100 supports ≤100 MHz up-translation and ≥100 MHz down-translation at ≤30 pF total load capacitance (including PCB trace, probe, and device pin capacitance). At 50 pF, maximum frequency drops to 80–100 MHz depending on voltage pair and direction; design margin requires CL ≤ 30 pF for full-spec 100 MHz operation.

Can refA and refB be tied to the same voltage rail?

No - refA and refB must be driven by separate, stable voltage sources corresponding to their respective logic domains (e.g., refA = 1.2 V, refB = 3.3 V). Tying them together defeats bidirectional translation functionality and may cause undefined behavior or excessive leakage, as confirmed in Section 7's functional description and Table 6 leakage current limits.

Is the EN pin 5 V tolerant?

No - the EN pin is referenced to refA and must not exceed V_refA + 0.3 V (per Table 5 VIH/VIL specs). For example, if refA = 1.8 V, EN must stay within 0 V to 2.1 V. Applying 5 V to EN violates absolute maximum ratings and risks permanent damage, as stated in Table 4 (VI max = +7.0 V applies only to An/Bn/refB pins, not EN).

How does the device handle mismatched rise/fall times between A and B sides?

The LSF0204PW-Q100 uses passive MOSFET topology with no internal timing control - signal edge rates are preserved end-to-end. Measured t_PLH/t_PHL remain symmetric (<1 ns difference) across voltage pairs (e.g., 1.2 V ↔ 3.3 V) at CL = 30 pF, as verified in Table 7. No external compensation is needed, but layout symmetry and matched trace lengths are recommended to maintain skew <50 ps.