Nexperia USA Inc. PBLS4002D,115

Overview

PBLS4002D,115 from NXP Semiconductors is a dual-function SOT457-packaged discrete device integrating a 40 V PNP low-V_CEsat Breakthrough In Small Signal (BISS) transistor and a 50 V NPN resistor-equipped transistor (RET). It delivers R_CEsat = 240–340 mΩ at I_C = −500 mA, supports 100 mA output current on the RET side, and features integrated bias resistors (R₁ = 4.7 kΩ typ, R₂/R₁ = 1 typ) for high-side load switching in portable LED backlight and battery charger circuits.

For engineers reviewing the PBLS4002D,115 datasheet, PBLS4002D,115 pinout, PBLS4002D,115 application, or PBLS4002D,115 equivalent, this dual-transistor loadswitch offers verified low-threshold drive (<1 V), space-saving integration of PNP BISS + NPN RET, and validated thermal performance on ceramic PCBs up to 150 °C junction temperature.

Technical Context

The PBLS4002D integrates two functionally independent transistors: TR1 is a PNP BISS device optimized for high-current, low-saturation-voltage switching (V_CEsat = −120 to −170 mV @ I_C = −500 mA), while TR2 is an NPN RET with built-in input (R₁) and feedback (R₂) resistors enabling direct logic-level control without external biasing. Both share thermal coupling but operate with separate electrical paths and distinct absolute maximum ratings.

TR1 supports −1 A continuous collector current with V_CEO = −40 V and exhibits h_FE = 215–800 across I_C = −1 mA to −500 mA; TR2 provides 100 mA output current, V_CEO = 50 V, and VI(on)/VI(off) thresholds of 1.9–2.5 V / 0.5–1.1 V respectively - enabling robust digital interface compatibility and noise-immune switching.

Key Specifications

Pinout & Package

SOT457 (SC-74) 6-pin surface-mount plastic package with standard footprint (3.0 × 1.7 mm body, 0.65 mm pitch); designed for reflow soldering per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-transistor loadswitch applications.

Compared with NSV40201MR6T1G and UMH11NTR, PBLS4002D,115 uniquely combines high-side PNP BISS switching with integrated logic-compatible NPN RET in one package - eliminating external biasing, supporting true high-side control, and reducing PCB area by >40% versus dual-discrete solutions.

Availability

PBLS4002D,115 is available at Aetrix Electronics and suitable for LED backlight control, battery charger enable, and portable equipment power rail applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial and consumer OEM programs.

Supply support for PBLS4002D,115 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

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and mobile applications.

PBLS4002D,115 belongs to NXP's BISS+RET integrated discrete family, designed specifically to replace discrete PNP+NPN combinations in space- and power-constrained portable electronics while maintaining robust thermal and electrical performance.

FAQ

What is the maximum continuous collector current for the PNP BISS transistor (TR1) in PBLS4002D,115?

The TR1 PNP BISS transistor supports −1 A continuous collector current when mounted on a ceramic Al₂O₃ PCB with standard footprint, as specified in Table 5 limiting values. Derating applies above 25 °C ambient: at 85 °C, maximum I_C reduces to approximately −700 mA based on 400 mW total power dissipation and R_CEsat = 340 mΩ.

Can PBLS4002D,115 be used as a standalone high-side switch without external components?

Yes - the TR2 NPN RET section provides fully integrated biasing (R₁ = 4.7 kΩ typ, R₂/R₁ = 1 typ), allowing direct connection of a 1.8–3.3 V logic signal to Pin 5 to control TR1 via internal cascaded switching. No external resistors, capacitors, or level shifters are required for basic on/off operation.

What is the thermal resistance from junction to ambient (R_th(j-a)) for PBLS4002D,115 on a standard FR4 PCB?

On a standard single-sided FR4 PCB (tin-plated, no extended copper), R_th(j-a) is 312 K/W per device, as stated in Table 6. This value increases thermal rise by ~31 °C per 100 mW dissipated - critical for thermal design in unventilated enclosures. Use ceramic PCB or enlarged copper pads to achieve lower values (210 K/W).

How does the R₂/R₁ ratio affect switching behavior in PBLS4002D,115?

The R₂/R₁ ratio (0.8–1.2, typ 1.0) sets internal feedback for TR2, stabilizing h_FE and ensuring consistent saturation across temperature and process variation. A ratio near unity guarantees VI(on) remains within 1.9–2.5 V and VI(off) stays ≤1.1 V, preventing unintended turn-on due to noise or leakage in battery-powered systems.