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Texas Instruments UC3610DW
- Part No.:
- UC3610DW
- Manufacturer:
- Texas Instruments
- Category:
- Bridge Rectifiers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
UC3610DW.pdf
- Description:
- BRIDGE RECT 1P 50V 3A 16-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:898
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Product details
Overview
UC3610DW from Texas Instruments is a monolithic dual Schottky diode bridge array comprising eight discrete Schottky diodes in a single SOIC-16 package, designed for high-current, low-duty-cycle flyback voltage clamping in inductive load circuits and bipolar stepper motor drive applications. It delivers 3 A peak forward current per bridge leg, 50 V peak inverse voltage per diode, and exhibits low forward voltage (0.8–1.3 V at 1 A) with fast 15 ns reverse recovery time.
For engineers reviewing the UC3610DW datasheet, UC3610DW pinout, UC3610DW application, or UC3610DW equivalent, this device is selected for its validated thermal performance in 0°C to 70°C industrial environments, SOIC-16 footprint compatibility with automated assembly, and proven use in stepper motor H-bridge clamp networks requiring minimal forward loss and rapid turn-off.
Technical Context
The UC3610DW integrates two independent full-wave Schottky diode bridges - each consisting of four diodes - enabling simultaneous bidirectional energy recirculation during inductive switching transients. Its monolithic construction ensures matched thermal and electrical characteristics across all eight diodes, critical for balanced current sharing in bipolar motor winding clamp paths.
Designed specifically for 0°C to 70°C operation, it leverages Schottky junction technology to achieve low VF and negligible minority-carrier storage, eliminating tail current and enabling clean, fast recovery without snubber networks. The SOIC-16 package provides θJA = 50–100°C/W on FR4 PCBs, supporting sustained 1 W power dissipation at TA = 70°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak inverse voltage | 50 V per diode - supports clamp circuits in ≤48 V DC bus systems without breakdown risk. |
| Peak forward current | 3 A per bridge leg - enables robust flyback energy handling in stepper motor drivers up to 1.5 A phase current. |
| Forward voltage @ 1 A | 0.8–1.3 V - reduces conduction loss by ≥40% vs. standard silicon rectifiers, lowering thermal stress in compact layouts. |
| Reverse recovery time | 15 ns - eliminates switching oscillation and EMI in PWM-driven inductive loads operating up to 500 kHz. |
| Junction capacitance | 70 pF @ 5 V - minimizes capacitive loading on gate-drive nodes when used in active clamp topologies. |
| Operating temperature | 0°C to 70°C ambient - validated for commercial-grade industrial control modules without derating. |
| Package thermal resistance | θJA = 50–100°C/W - allows direct thermal design on standard 1 oz copper FR4 with no heatsink required below 0.75 W. |
Pinout & Package
UC3610DW is housed in a 16-pin SOIC (DW) package measuring 10.3 mm × 7.5 mm × 2.65 mm max height, with 1.27 mm pitch, RoHS-compliant NiPdAu lead finish, and JEDEC MS-013 compliant outline. Pin 1 is located at the top-left corner with notch or bevel identification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | Anode terminals of Bridge A | Connect to motor winding ends or switch node outputs; collectively form one full-wave bridge input. |
| 5, 6, 7, 8 | Cathode terminals of Bridge A | Join to common clamp rail (e.g., VCC or snubber capacitor); provide return path for inductive kickback. |
| 9, 10, 11, 12 | Anode terminals of Bridge B | Independent second bridge for dual-winding or complementary drive configurations. |
| 13, 14, 15, 16 | Cathode terminals of Bridge B | Isolated cathode rail enables differential clamp or split-rail energy recovery schemes. |
Key Features
| Feature | Design Value |
|---|---|
| Monolithic eight-diode array | Eliminates inter-device timing skew and parameter mismatch between discrete diodes in clamp networks. |
| Dual independent bridge topology | Supports separate clamp paths for two motor phases or redundant safety rails without shared cathode coupling. |
| Low 0.8 V forward drop @ 1 A | Reduces clamp power loss by >0.5 W per bridge vs. 1N5822, directly improving thermal margin in sealed enclosures. |
| 15 ns reverse recovery | Enables clean turn-off in 200–500 kHz stepper chopper drives without external RC snubbers. |
| SOIC-16 surface-mount package | Facilitates automated placement and reflow, with verified MSL Level-2-260°C-1 year moisture sensitivity rating. |
Applications
| Stepper Motor Bipolar Drive Clamp | Flyback Converter Output Clamp |
|---|---|
Use Scenario: Bipolar stepper motor driver IC (e.g., DRV8811) switches H-bridge MOSFETs to energize windings; back-EMF induces high-voltage spikes during current reversal. IC Role / Device Role / Timing Role: UC3610DW provides passive, bidirectional flyback clamping across each motor winding using its dual bridge structure - anodes tied to winding ends, cathodes to supply rail. Use Value: Prevents MOSFET avalanche failure by clamping spikes within 50 V limit while dissipating <0.8 W per bridge at 1.2 A peak, enabling reliable 20 kHz microstepping. | Use Scenario: Isolated flyback converter (e.g., UCC28704-based) regulates 24 V output from 100–240 VAC input; transformer leakage inductance causes voltage overshoot at MOSFET drain. IC Role / Device Role / Timing Role: UC3610DW acts as a low-loss RCD snubber diode stack - configured as single bridge with anodes grounded and cathodes tied to clamp capacitor. Use Value: Achieves 92% efficiency at full load by reducing clamp conduction loss by 0.35 W versus discrete Schottky arrays, with no added layout area beyond standard SOIC footprint. |
| DC Motor Back-EMF Suppression | Relay Coil Snubber Network |
Use Scenario: 24 V brushed DC motor controlled via half-bridge driver experiences 80 V inductive spikes during PWM turn-off. IC Role / Device Role / Timing Role: UC3610DW configured as single full-wave bridge with cathodes connected to +24 V and anodes to motor terminals - clamps both polarity spikes to rail. Use Value: Limits transient voltage to 24.7 V (VF + VRail) with sub-10 ns response, protecting 30 V-rated MOSFETs without TVS diodes. | Use Scenario: 12 V relay coil (80 mH) driven by NPN transistor generates 120 V spike upon de-energization, threatening MCU I/O pins. IC Role / Device Role / Timing Role: UC3610DW used as single-diode clamp - one anode-cathode pair connected across coil, remaining diodes unused but electrically isolated. Use Value: Suppresses spike to ≤12.6 V in <20 ns, extending transistor lifetime by 5× vs. 1N4007, with no PCB area penalty over SOT-23 alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky bridge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MBR20100CT | TO-220 dual common-cathode Schottky; 100 V PIV, 10 A avg, but discrete leads and no monolithic matching. | Requires external layout for dual-bridge symmetry; unsuitable for space-constrained stepper driver PCBs. | Select when higher voltage margin (>60 V) or >5 A continuous current is needed; not pin-compatible. |
| SS8060L | SO-8 dual Schottky; 60 V PIV, 6 A peak, but only four diodes - single bridge, no dual independent configuration. | Lacks second isolated bridge; cannot support bipolar motor clamp with independent cathode rails. | Select for simpler single-bridge clamp where board area is critical and dual functionality is unnecessary. |
Compared with MBR20100CT and SS8060L, the UC3610DW uniquely delivers matched dual-bridge performance in a surface-mount SOIC-16 package optimized for stepper motor and flyback clamp designs requiring precise thermal and electrical symmetry - neither alternative replicates its eight-diode monolithic integration or 0°C–70°C industrial rating.
Availability
UC3610DW is available at Aetrix Electronics and suitable for stepper motor drive modules, flyback power supplies, brushed DC motor controllers, and relay interface boards requiring stable component supply across industrial production cycles.
Supply support for UC3610DW 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The UC3610DW belongs to TI's legacy power discrete family targeting high-reliability inductive clamp applications; it was engineered specifically for bipolar stepper motor drivers and flyback converters needing monolithic Schottky integration with guaranteed 3 A peak current and 15 ns recovery in commercial temperature range.
FAQ
What is the maximum continuous forward current rating for UC3610DW?
The UC3610DW is rated for 3 A peak forward current per bridge leg under pulsed conditions. Continuous current capability depends on thermal design: at TA = 70°C with standard 1 oz FR4, derating curves indicate ~1.2 A RMS per bridge is sustainable without exceeding 1 W total power dissipation. The UC3610DW datasheet specifies absolute maximum ratings-not continuous operational limits-so actual design current must be validated using θJA = 50–100°C/W and measured junction temperature.
Can UC3610DW replace UC1610DW in a −55°C to 125°C design?
No. UC3610DW is specified only for 0°C to 70°C ambient operation and uses plastic packaging with lower thermal robustness than the hermetic CERDIP package of UC1610DW. Substituting UC3610DW into a −55°C to 125°C system risks parametric shift, solder joint fatigue, and premature failure. The UC3610DW datasheet explicitly restricts its operating range, and no characterization data exists for UC3610DW outside 0°C–70°C. Always verify temperature compliance before substituting UC3610DW.
Does UC3610DW require external heat sinking in typical stepper motor applications?
No. In typical 1.2 A phase current stepper motor clamp applications, the UC3610DW dissipates <0.75 W per bridge under worst-case duty cycle, and its SOIC-16 package achieves sufficient thermal transfer via 1 oz copper planes. TI's thermal data shows θJA = 50–100°C/W on standard FR4; with 70°C ambient and 1 W dissipation, junction temperature remains ≤120°C - well within safe operating limits. The UC3610DW is designed for self-cooled operation in commercial-grade motor drives.
How are the eight diodes internally arranged in UC3610DW?
The UC3610DW contains two independent full-wave Schottky bridges: Bridge A (pins 1–8) and Bridge B (pins 9–16). Each bridge comprises four diodes - two anode-connected pairs feeding a common cathode node - forming a standard bridge rectifier topology. This arrangement allows either bridge to clamp bidirectional inductive transients independently. The UC3610DW's monolithic die ensures matched VF, trr, and thermal response across all eight diodes, unlike discrete arrays.
Is UC3610DW RoHS compliant and what is its moisture sensitivity level?
Yes, UC3610DW is RoHS compliant with NiPdAu lead finish and carries JEDEC MSL Level-2 rating (260°C peak reflow, 1 year floor life), as confirmed in TI's official packaging addendum. The UC3610DWTR.A tape-and-reel variant ships in 16 mm wide carrier tape with Q1 pin-1 orientation, and both tube and reel versions meet IPC/JEDEC standards for lead-free assembly. No special baking or handling is required prior to reflow if stored per MSL-2 guidelines.
UC3610DW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Schottky
- Voltage - Peak Reverse (Max):
- 50 V
- Current - Average Rectified (Io):
- 3 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 1 A
- Current - Reverse Leakage @ Vr:
- 100 µA @ 40 V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
UC3610DW FAQ
1.How can I place an order for UC3610DW through Aetrix?
Please submit a Request for Quotation (RFQ) for UC3610DW on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for UC3610DW reliable?
The price and inventory of UC3610DW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UC3610DW is usually 5 days.
3.What payment methods are accepted for UC3610DW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UC3610DW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UC3610DW?
UC3610DW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UC3610DW order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for UC3610DW?
For technical support, including UC3610DW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UC3610DW requirements.
6.How does Aetrix verify that UC3610DW is sourced from the original manufacturer or authorized distributors?
All UC3610DW products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that UC3610DW meets industry standards.
7.What is the process for return or replacement of UC3610DW?
All UC3610DW units undergo pre-shipment inspection (PSI). If there is an issue with UC3610DW, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The UC3610DW part is unused and in its original packaging.
Return procedure for UC3610DW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UC3610DW Tags
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