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Texas Instruments UC3610N
- Part No.:
- UC3610N
- Manufacturer:
- Texas Instruments
- Category:
- Bridge Rectifiers
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
UC3610N.pdf
- Description:
- BRIDGE RECT 1PHASE 50V 3A 8-PDIP
- Quantity:
- Payment:
- Shipping:
Inventory:10
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Product details
Overview
UC3610N 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; features 50 V peak inverse voltage per diode, 3 A peak forward current, and 0.8–1.3 V forward voltage drop at 1 A.
For engineers reviewing the UC3610N datasheet, UC3610N pinout, UC3610N application, or UC3610N equivalent, this device is selected for bipolar stepper motor drive protection, inductive snubbing in DC-DC converters, and compact high-efficiency clamp networks where thermal performance and fast recovery (15 ns) are critical.
Technical Context
The UC3610N integrates eight Schottky diodes in a dual full-bridge topology-two independent 4-diode bridges sharing common cathodes or anodes depending on package configuration-enabling bidirectional clamping for H-bridge motor drivers. Its monolithic construction ensures matched diode characteristics across both bridges.
Designed specifically for 0°C to 70°C ambient operation, it delivers higher peak current (3 A) than UC1610/UC2610 variants, with lower thermal resistance (θja = 103°C/W, θjc = 50°C/W) in the 8-pin PDIP (N) package, supporting sustained clamp energy dissipation up to 1 W at 70°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak inverse voltage | 50 V per diode - supports clamp circuits in ≤48 V systems without avalanche breakdown risk. |
| Peak forward current | 3 A - enables robust flyback energy handling in stepper motor drivers and relay snubbers. |
| Forward voltage drop | 0.8–1.3 V at 1 A - reduces conduction loss and self-heating during repetitive clamp events. |
| Reverse recovery time | 15 ns - minimizes switching loss and EMI in high-frequency PWM-driven inductive loads. |
| Junction capacitance | 70 pF at 5 V - limits capacitive loading on gate-drive or feedback nodes in precision timing circuits. |
| Operating temperature | 0°C to 70°C ambient - optimized for commercial-grade industrial control and automation equipment. |
| Power dissipation | 1 W at TA = 70°C - defines maximum continuous clamp power before thermal derating begins. |
Pinout & Package
The UC3610N 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. Thermal resistance is θja = 103°C/W and θjc = 50°C/W, enabling direct heatsinking via the leads in moderate-power applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | Anodes of Bridge A | Four independent anode inputs for first full-wave Schottky bridge; used for bidirectional clamping of one motor winding or converter leg. |
| 5, 6, 7, 8 | Anodes of Bridge B | Four independent anode inputs for second full-wave Schottky bridge; electrically isolated from Bridge A for dual-winding or dual-channel clamp use. |
| Common Cathodes | Internal shared cathodes | Each bridge has internally tied cathodes - external connection required only at cathode pins (not brought out separately in N-package; cathodes referenced to GND or supply rail externally). |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent Schottky bridges | Enables simultaneous clamp protection for two separate inductive channels (e.g., bipolar stepper phase A and B) without cross-talk or shared thermal path. |
| Monolithic die integration | Ensures matched forward voltage, leakage, and recovery timing across all eight diodes - critical for balanced current sharing in H-bridge snubbing. |
| Low 15 ns reverse recovery | Reduces turn-off switching loss and voltage overshoot during rapid inductive current reversal - essential for >100 kHz PWM motor drives. |
| 3 A peak current rating | Supports transient energy absorption in stepper motor back-EMF spikes up to 3× rated coil current without bond-wire fusing. |
| Plastic DIP thermal optimization | θjc = 50°C/W allows direct PCB copper pour heatsinking - eliminates need for discrete diode arrays requiring multiple solder joints and layout area. |
Applications
| Stepper Motor Drive Protection | DC-DC Converter Snubber |
|---|---|
Use Scenario: Bipolar stepper motor driver IC (e.g., TI DRV88xx) switches current through two windings; back-EMF induces high-voltage flyback spikes during current reversal. IC Role / Device Role / Timing Role: UC3610N provides dual full-bridge clamp paths - each bridge clamps one winding's flyback energy into the supply rail or ground, limiting voltage to ≤50 V. Use Value: Prevents MOSFET avalanche failure and reduces radiated EMI by absorbing 3 A transient spikes within 15 ns, enabling reliable 20–50 kHz microstepping. | Use Scenario: Flyback or forward converter operating at 200–500 kHz experiences leakage inductance spikes across primary switch and secondary rectifier. IC Role / Device Role / Timing Role: UC3610N acts as a low-loss, fast-recovery clamp network across transformer windings or MOSFET drains, redirecting spike energy to input or output capacitor. Use Value: Cuts switching loss by 35% vs. silicon diodes due to 0.8 V lower VF, while 15 ns recovery avoids tail current overlap with main switch conduction. |
| Relay/Contactor Coil Suppression | Industrial PLC Output Stage |
Use Scenario: 24 V DC industrial relay coil de-energizes, generating >200 V inductive kick that threatens driving transistor and logic inputs. IC Role / Device Role / Timing Role: UC3610N placed across coil terminals as a dual-path clamp - one bridge handles forward polarity, the other reverse, accommodating bidirectional control signals. Use Value: Limits voltage to 50 V with <100 ns response, protecting 30 V-rated I/O drivers and eliminating need for TVS diodes in cost-sensitive designs. | Use Scenario: Programmable Logic Controller (PLC) digital output module drives solenoids, valves, and small motors with frequent on/off cycling. IC Role / Device Role / Timing Role: UC3610N integrated into output stage PCB layout as standardized clamp component - each bridge assigned to one output channel for consistent flyback management. Use Value: Enables 100% duty cycle reliability testing at 3 A peak, with 1 W dissipation capability ensuring no thermal shutdown during extended valve actuation sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky bridge clamp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MBR20100CT | Discrete dual common-cathode Schottky; 20 A total, 100 V PIV; TO-220 package; no monolithic matching. | Higher voltage/current but larger footprint, no thermal coupling benefit; requires two external devices per bridge. | Select when >50 V system voltage or >3 A peak demand exists; not drop-in for UC3610N PCB layout. |
| STPS30L45CG | Single dual-Schottky in TO-220AB; 30 A total, 45 V PIV; faster recovery (12 ns) but lower PIV margin. | Optimized for high-current SMPS secondary rectification, not multi-bridge clamp topologies. | Use where single-channel high-current rectification dominates; lacks dual-isolated bridge architecture needed for stepper motor symmetry. |
Compared with MBR20100CT and STPS30L45CG, the UC3610N uniquely delivers matched dual-bridge topology in a compact 8-pin DIP, enabling precise, space-efficient, and thermally coupled clamp networks for bipolar motor control - a capability neither alternative replicates in form, function, or footprint.
Availability
UC3610N is available at Aetrix Electronics and suitable for stepper motor drives, DC-DC converter snubbers, and industrial relay suppression requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for UC3610N 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, embedded processing, and logic solutions for industrial, automotive, and communications markets.
The UC3610N belongs to TI's legacy power discrete family designed specifically for high-reliability inductive load protection - emphasizing monolithic integration, thermal robustness, and application-specific pinout for motor and power conversion systems.
FAQ
What is the maximum peak forward current rating for the UC3610N?
The UC3610N is rated for 3 A peak forward current per diode, validated under pulse conditions typical of flyback energy absorption in stepper motor drivers and relay coils. This rating applies across its specified 0°C to 70°C operating ambient range and is supported by its 1 W power dissipation limit at 70°C. Exceeding 3 A risks thermal runaway or bond-wire failure, especially without adequate PCB copper heatsinking.
Does the UC3610N include internal cathode connections for each bridge?
No - the UC3610N integrates two independent four-diode bridges with internally tied cathodes per bridge, but those cathodes are not brought out to dedicated pins in the 8-pin PDIP (N) package. External circuit design must reference the cathodes to system ground or supply rail using PCB traces; the anodes (pins 1–4 and 5–8) are fully accessible for flexible clamp topology implementation.
How does the UC3610N differ from the UC1610N and UC2610N in terms of temperature range and current capability?
The UC3610N operates from 0°C to 70°C with a 3 A peak forward current rating, whereas the UC1610N supports −55°C to 125°C but only 1 A peak, and the UC2610N covers −25°C to 125°C also at 1 A peak. The UC3610N achieves higher current via optimized die metallization and plastic package thermal design - making it the preferred choice for commercial-grade, high-current clamp applications where extended temperature range is not required.
Can the UC3610N be used in surface-mount designs?
No - the UC3610N is exclusively offered in the through-hole 8-pin PDIP (N) package. For surface-mount compatibility, TI offers the pin-compatible UC3610DW in 16-pin SOIC (DW) package. Both share identical electrical specifications and dual-bridge functionality, but the DW variant requires re-layout for gull-wing lead attachment and supports automated assembly with JEDEC Level-2 moisture sensitivity compliance.
What is the reverse recovery time specification for the UC3610N, and why is it important?
The UC3610N has a reverse recovery time of 15 ns, measured at 0.5 A forward to 0.5 A reverse transition. This ultrafast recovery minimizes switching loss and voltage overshoot during rapid current reversal in PWM-driven inductive loads - directly improving efficiency and EMI performance in stepper motor drivers and high-frequency DC-DC converters where the UC3610N is commonly deployed.
UC3610N Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
UC3610N FAQ
1.How can I place an order for UC3610N through Aetrix?
Please submit a Request for Quotation (RFQ) for UC3610N 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 UC3610N reliable?
The price and inventory of UC3610N are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UC3610N is usually 5 days.
3.What payment methods are accepted for UC3610N?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UC3610N transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UC3610N?
UC3610N orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UC3610N 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 UC3610N?
For technical support, including UC3610N datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UC3610N requirements.
6.How does Aetrix verify that UC3610N is sourced from the original manufacturer or authorized distributors?
All UC3610N 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 UC3610N meets industry standards.
7.What is the process for return or replacement of UC3610N?
All UC3610N units undergo pre-shipment inspection (PSI). If there is an issue with UC3610N, 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 UC3610N part is unused and in its original packaging.
Return procedure for UC3610N:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UC3610N Tags
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DF04M
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