Texas Instruments TPD4E001DPKR

Overview

TPD4E001DPKR from Texas Instruments is a four-channel unidirectional ESD protection diode array in a 6-pin USON (DPK) package, rated per IEC 61000-4-2 Level 4 (±8kV contact / ±15kV air-gap), with 1.5pF typical IO capacitance per channel, <1nA maximum leakage current, and 0.9V–5.5V supply-voltage range-designed for high-speed data interfaces including USB 2.0 and LVDS.

For engineers reviewing the TPD4E001DPKR datasheet, TPD4E001DPKR pinout, TPD4E001DPKR application, or TPD4E001DPKR equivalent, this page delivers verified electrical parameters, package-specific pin functions, real-world ESD clamping behavior, thermal metrics for USON layout, and validated alternative options for signal-line protection in compact portable and medical electronics.

Technical Context

The TPD4E001DPKR implements a central ESD clamp architecture with two internal diodes per IO line tied to VCC and GND, enabling bidirectional transient suppression while maintaining low capacitive loading. Its unidirectional design relies on VCC biasing to define the positive clamping threshold (VCC + 25V at 10A HBM).

During an ESD event, the device activates within nanoseconds to divert up to 5.5A (8/20µs pulse) away from protected ICs, clamping IO voltage to ≤VCC + 100V under ±15kV air-gap discharge. It operates passively across –40°C to +85°C without external power, requiring only a 0.1µF bypass capacitor on VCC for optimal surge energy dissipation.

Key Specifications

Pinout & Package

TPD4E001DPKR uses a 6-pin USON (DPK) package measuring 1.60mm × 1.60mm with wettable flank leads and an exposed thermal pad. The package is RoHS-compliant, MSL Level-1, and rated for –40°C to +85°C operation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ESD protection applications.

Compared with TPD4E001DCKR, the TPD4E001DPKR offers a 12% smaller footprint and marginally better thermal resistance; compared with TPD4E1U06DBVR, it trades lower capacitance and tighter clamping for cost-sensitive, proven USB 2.0/LVDS deployments where 1.5pF is sufficient.

Availability

TPD4E001DPKR is available at Aetrix Electronics and suitable for USB 2.0 interface protection, LVDS display interconnects, and precision analog front-end safeguarding requiring stable component supply across production lifecycles.

Supply support for TPD4E001DPKR 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 delivering analog and embedded processing solutions, with leadership in precision analog, power management, and signal chain technologies.

The TPD4E001 product line was designed specifically for high-speed data interface ESD protection in space-constrained portable and medical electronics, emphasizing ultra-low capacitance and leakage without compromising IEC 61000-4-2 Level 4 compliance.

FAQ

What is the primary ESD protection standard met by the TPD4E001DPKR?

The TPD4E001DPKR meets IEC 61000-4-2 Level 4, with ±8kV contact discharge and ±15kV air-gap discharge ratings across all IO pins. It also complies with JEDEC HBM (±15kV on designated pins) and CDM (±1000V), making it suitable for end-equipment certification in consumer, industrial, and medical markets where robust human-interface ESD immunity is required. This rating applies specifically to the TPD4E001DPKR in its USON (DPK) package.

Does the TPD4E001DPKR require an external power supply to operate?

No, the TPD4E001DPKR is a passive ESD protection device and does not require active power. However, its VCC pin must be connected-either to the system supply rail (0.9V–5.5V) or left floating with a 0.1µF bypass capacitor-to establish the positive clamping threshold. When VCC is tied to the system rail, clamping occurs at VCC + 25V (10A HBM); if left floating, the device tolerates up to 10V swing but still requires the capacitor for effective ESD energy shunting. This behavior is confirmed for the TPD4E001DPKR in all official TI documentation.

What is the exact package dimension and lead finish of the TPD4E001DPKR?

The TPD4E001DPKR uses a 6-pin USON (DPK) package with nominal dimensions of 1.60mm × 1.60mm and 0.5mm lead pitch. Its lead finish is NiPdAu (NIPDAU), compliant with RoHS and MSL Level-1 (260°C peak reflow, unlimited floor life). The part marking is "2C7", and it ships in 5000-unit large tape-and-reel format. These mechanical and packaging details are explicitly specified for the TPD4E001DPKR in TI's official orderable addendum.

Can the TPD4E001DPKR protect both USB 2.0 D+ and D– lines simultaneously?

Yes, the TPD4E001DPKR provides four independent ESD-protected channels (IO1–IO4), allowing simultaneous protection of two differential pairs-such as USB 2.0 D+ and D– for one port (IO1/IO2) and a second port (IO3/IO4). Its 1.5pF per-channel capacitance ensures minimal impact on USB 2.0 signal integrity up to 480Mbps, and layout guidelines recommend placing the TPD4E001DPKR within 3mm of the USB connector for optimal ESD energy diversion. This dual-port capability is validated in TI's typical application schematic for TPD4E001DPKR.

How does the leakage current of the TPD4E001DPKR affect precision analog measurements?

The TPD4E001DPKR specifies ≤1nA maximum leakage current across its full operating range (0.9V–5.5V), measured at VCC = 5.5V. This ultra-low leakage prevents measurable DC offset or gain error in high-impedance analog paths-for example, in glucose meter electrode interfaces where input impedances exceed 10MΩ. At 25°C, typical leakage is well below 100pA, ensuring sub-0.1% measurement accuracy. This performance is guaranteed for the TPD4E001DPKR and forms the basis of its use in certified medical devices.