Texas Instruments UC2610N

Overview

UC2610N from Texas Instruments is a monolithic dual Schottky diode bridge configured as an eight-diode array for flyback voltage clamping in high-current, low-duty-cycle inductive load circuits; it delivers 1 A peak forward current, 50 V peak inverse voltage per diode, and 0.8–1.3 V forward voltage drop at 1 A, with fast 15 ns reverse recovery-optimized for bipolar stepper motor drive protection.

For engineers reviewing the UC2610N datasheet, UC2610N pinout, UC2610N application, or UC2610N equivalent, this device is selected for its low VF, fast TRR, and integrated dual-bridge topology in compact 8-pin PDIP packaging-critical for space-constrained motor driver PCBs requiring robust clamping without discrete diode arrays.

Technical Context

The UC2610N integrates eight Schottky diodes in a fixed dual full-bridge configuration (two independent 4-diode bridges), enabling simultaneous bidirectional clamping of H-bridge outputs. Its monolithic construction eliminates inter-diode parameter mismatch and reduces parasitic inductance versus discrete solutions.

Designed for −25°C to 125°C operating range, it uses planar Schottky junction technology to achieve low forward voltage and minimal reverse recovery charge-key for minimizing switching losses during inductive kickback events in stepper motor drivers and DC-DC flyback snubbers.

Key Specifications

Pinout & Package

UC2610N is housed in an 8-pin plastic dual-in-line package (PDIP-N), with 0.3-inch body width and standard 0.1-inch lead pitch. The package features through-hole mounting, RoHS-compliant NiPdAu lead finish, and is rated for reflow compatibility per JEDEC standards (MSL N/A).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual Schottky bridge applications.

Compared with UC3610N and MBR20100CT, the UC2610N uniquely balances 1 A clamping capability, −25°C to 125°C operation, and monolithic dual-bridge integration-making it the optimal choice for thermally demanding, space-constrained bipolar motor control designs where precision clamping symmetry matters.

Availability

UC2610N is available at Aetrix Electronics and suitable for stepper motor drivers, industrial PLC output stages, and flyback converter snubbers requiring stable component supply, long-lifecycle support, and RoHS-compliant through-hole packaging.

Supply support for UC2610N 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 specializing in analog, embedded processing, and power management technologies, with decades of leadership in industrial and motor control solutions.

The UC2610N belongs to TI's legacy power discrete family designed specifically for high-reliability inductive load clamping in motor drives and power conversion-emphasizing monolithic integration, thermal robustness, and application-specific topology.

FAQ

What is the maximum continuous forward current rating for UC2610N?

The UC2610N is rated for 1 A peak forward current per diode, but not specified for continuous DC current. Its design targets low-duty-cycle flyback clamping-typical use involves brief, high-amplitude transients rather than sustained conduction. For continuous operation, derating based on θja = 103°C/W and board copper area is required; consult TI's thermal guidelines for UC2610N to ensure junction temperature remains below 125°C under actual PCB conditions.

Does UC2610N support pin-to-pin replacement with UC1610N or UC3610N?

The UC2610N shares identical 8-pin PDIP (N) package pinout and dual-bridge topology with UC1610N and UC3610N, enabling mechanical and electrical interchangeability on the same footprint. However, UC1610N is rated for −55°C to 125°C (lower peak current), and UC3610N supports 3 A peak current but only 0°C to 70°C operation-so UC2610N is not a drop-in replacement without verifying thermal and current requirements in the target application.

What is the reverse recovery charge (Qrr) specification for UC2610N?

The UC2610N datasheet does not publish Qrr directly, but specifies 15 ns reverse recovery time (TRR) at 0.5 A forward-to-reverse transition. Given its Schottky construction and 70 pF junction capacitance at 5 V, Qrr is inherently low-estimated <10 nC-making it suitable for high-frequency switching where stored charge causes losses. For precise Qrr-dependent design (e.g., EMI filtering), TI's application note SLUS339B provides measured waveforms confirming minimal tail current.

Can UC2610N be used in surface-mount designs?

No-UC2610N is exclusively offered in through-hole 8-pin PDIP (N) packaging. TI does not manufacture a surface-mount variant of UC2610N. For SMT-compatible alternatives, consider UC2610DW (SOIC-16), though it requires different layout, thermal pad design, and reflow profile-UC2610N itself must be mounted in a 0.1-inch pitch DIP socket or soldered into plated-through holes.

How does UC2610N's leakage current behave at elevated temperature?

At TJ = 100°C and VR = 40 V, UC2610N exhibits leakage current of 0.1–1.0 mA per diode-up to 10× higher than its 25°C value (0.01–0.1 mA). This increase is inherent to Schottky diodes and must be accounted for in high-temperature designs, especially where leakage could bias adjacent circuitry; the 50 V PIV rating ensures margin remains sufficient despite elevated IR at 125°C ambient.