Nexperia USA Inc. NPIC6C596ABQX

Overview

NPIC6C596ABQX from Nexperia is an 8-bit serial-in/parallel-out shift register with open-drain extended-drain NMOS (EDNMOS) outputs, separate shift and storage register clocks (SHCP/STCP), asynchronous master reset (MR), and active-low output enable (OE). It delivers 100 mA continuous current per channel, 33 V output clamping, and operates from 2.3 V to 5.5 V across –40 °C to +125 °C - used for LED signage, fault indicator panels, and relay/solenoid drivers.

For engineers reviewing the NPIC6C596ABQX datasheet, NPIC6C596ABQX pinout, NPIC6C596ABQX application, or NPIC6C596ABQX equivalent, key selection considerations include its 33 V/100 mA open-drain EDNMOS outputs, dual-clock architecture enabling precise timing control in cascaded power driver stages, integrated avalanche energy rating (30 mJ), and DHVQFN16 thermal-enhanced package for high-current density PCB layouts.

Technical Context

The NPIC6C596ABQX implements a two-stage synchronous logic architecture: an 8-bit shift register clocked by SHCP (data shifted on LOW-to-HIGH edge) feeds into an independent 8-bit storage register clocked by STCP (data latched on LOW-to-HIGH edge). This separation allows pipeline staging and eliminates race conditions during cascaded data transfer.

Its eight open-drain EDNMOS outputs feature internal voltage clamps limiting V_DS to 33 V, rated for 250 mA pulsed drain current and 30 mJ non-repetitive avalanche energy - enabling direct drive of inductive loads like relays without external flyback diodes. The OE input controls output state independently of register contents.

Key Specifications

Pinout & Package

DHVQFN16 (SOT763-1) package: 2.5 × 3.5 × 0.85 mm body, 16-terminal no-lead thermal-enhanced quad flat layout with exposed thermal pad (GND-connected or floating per design).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit open-drain power shift register applications.

Compared with TPIC6B595N and NPIC6C596APW, the NPIC6C596ABQX offers superior thermal performance (1825 mW), verified 30 mJ avalanche capability for inductive reliability, and a compact 2.5 × 3.5 mm DHVQFN footprint - making it optimal for high-density, high-reliability power driver applications.

Availability

NPIC6C596ABQX is available at Aetrix Electronics and suitable for LED signage, industrial fault indicators, and relay/solenoid driver modules requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for NPIC6C596ABQX 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 global semiconductor expert focused on high-volume, high-reliability logic, power, analog, and ESD protection devices - headquartered in Nijmegen, Netherlands, with manufacturing in Asia and Europe.

The NPIC6C596ABQX belongs to Nexperia's Power Logic family, engineered specifically for robust, high-current digital output interfacing in industrial control, building automation, and transportation systems where load-driving integrity and thermal resilience are critical.

FAQ

What is the maximum safe operating voltage on the Q0–Q7 outputs?

The NPIC6C596ABQX outputs are rated for a maximum drain-source voltage (V_DS) of 33 V under continuous operation, with absolute maximum rating up to 33 V (per Table 3). Exceeding this risks permanent damage. The integrated clamp activates at ~33 V to protect against inductive transients, but sustained operation above 33 V is not permitted.

Can NPIC6C596ABQX drive 12 V relays directly without external components?

Yes - its 33 V output clamping and 100 mA continuous per-channel rating allow direct low-side switching of typical 12 V relays (coil resistance ≥120 Ω). The integrated clamp suppresses flyback voltage, eliminating the need for external diodes in most cases. Verify relay coil inductance and switching frequency to ensure avalanche energy remains within the 30 mJ single-pulse limit.

How does the DHVQFN16 (SOT763-1) package improve thermal performance over SO16?

The DHVQFN16 package delivers 1825 mW total power dissipation at 25 °C - more than double the SO16's 800 mW - due to its exposed thermal pad and low thermal resistance (14.6 mW/°C derating slope). This enables higher output current duty cycles or operation in elevated ambient temperatures without thermal throttling or external heatsinking.

Is the Q7S serial output synchronized to SHCP rising or falling edge?

Q7S is clocked out on the falling edge of SHCP - a deliberate design choice to provide additional hold time for cascaded configurations. This ensures stable data capture at the next stage's DS input before the subsequent rising edge advances the shift register, improving timing margin in multi-device chains.