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Texas Instruments UC2706DW
- Part No.:
- UC2706DW
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
UC2706DW.pdf
- Description:
- IC GATE DRVR LOW-SIDE 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,704
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Product details
Overview
UC2706DW from Texas Instruments is a dual-output, high-speed power MOSFET driver IC with totem-pole outputs capable of sourcing/sinking up to 1.5A peak per channel, operating from 5V to 40V supply, featuring analog latched shutdown (130mV threshold), thermal shutdown at 155°C, and SOIC-16 surface-mount packaging for industrial motor control and DC-DC converter gate drive applications.
For engineers reviewing the UC2706DW datasheet, UC2706DW pinout, UC2706DW application, or UC2706DW equivalent, this page delivers verified electrical parameters, package-specific pin functions, real-world use scenarios in push-pull and parallel configurations, and two confirmed alternative drivers with documented functional and temperature-range differences.
Technical Context
The UC2706DW implements a high-speed Schottky-process totem-pole output stage optimized for driving power MOSFETs, with independent inverting and non-inverting digital inputs enabling active-high or active-low signal acceptance. Its internal flip-flop (enabled by grounding Pin 7) supports true push-pull operation, while open-pin 7 configures outputs for parallel 3.0A capability.
It integrates analog shutdown via differential comparator inputs (Stop INV/Non-INV) with 130mV threshold and common-mode range from ground to (VIN – 3V), plus an inhibit circuit referenced to Pin 15 (adjustable 0.5–3.5V threshold) for deadband control-both critical for preventing shoot-through in half-bridge topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 5V to 40V - supports wide-input industrial supplies and compatibility with UC1840 PWM controllers. |
| Peak Output Current | ±1.5A per channel - enables direct drive of medium-power MOSFETs without external buffers. |
| Rise/Fall Time | 20ns to 60ns into 1000pF - ensures fast switching for high-frequency (>100kHz) SMPS designs. |
| Analog Shutdown Threshold | 130mV typical - provides precise, low-voltage current-sense interface for overcurrent protection. |
| Operating Temperature | –40°C to +85°C - qualified for extended industrial environments, distinct from UC1706 (–55°C to +125°C) and UC3706 (0°C to +70°C). |
| Thermal Shutdown | 155°C - protects device during overload or poor heatsinking conditions without external circuitry. |
| Inhibit Delay | 250ns - enables fast deadband insertion between high-side and low-side gate signals. |
Pinout & Package
UC2706DW is housed in a 16-pin SOIC (DW) package with exposed pad thermal enhancement, compliant with JEDEC MS-012, RoHS-compliant NiPdAu lead finish, and MSL Level-2-260°C-1 year reflow rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | Ground | All four GND pins must be connected to common system ground for stable reference and thermal conduction. |
| 5 | STOP NON-INV. | Non-inverting input of analog shutdown comparator - asserts latched shutdown when voltage exceeds 130mV above STOP INV. |
| 6 | STOP INV. | Inverting input of analog shutdown comparator - sets common-mode baseline; tied to sense resistor ground or current-sense node. |
| 7 | FLIP/FLOP | Enables internal toggle logic: grounded → push-pull mode; open → parallel output mode. |
| 8 | VC | Collector supply for output stage - decoupled separately to minimize switching noise coupling into logic section. |
| 9 | A OUTPUT | High-current totem-pole output A - sources/sinks up to 1.5A; used for high-side or low-side gate drive. |
| 10 | B OUTPUT | High-current totem-pole output B - complementary to A in push-pull mode; paralleled with A in single-ended mode. |
| 11 | N.I. INPUT | Non-inverting digital input - accepts TTL-compatible signals (VIH ≥2.2V, VIL ≤0.8V); drives both outputs directly when FLIP/FLOP disabled. |
| 12 | INV. INPUT | Inverting digital input - provides active-low interface; output polarity inverted relative to N.I. INPUT. |
| 13 | A INHIBIT | Asynchronous inhibit for Output A - forces A low when asserted; referenced to INHIBIT REF (Pin 15). |
| 14 | B INHIBIT | Asynchronous inhibit for Output B - forces B low when asserted; referenced to INHIBIT REF (Pin 15). |
| 15 | INHIBIT REF | Reference voltage for inhibit inputs - set externally to 0.5V–3.5V to define inhibit threshold. |
| 16 | VIN | Main logic supply input - powers internal regulator and digital circuitry; disables entire IC if <5V. |
Key Features
| Feature | Design Value |
|---|---|
| Dual 1.5A Totem-Pole Outputs | Enables direct drive of power MOSFETs in half-bridge or synchronous rectifier stages without external buffers. |
| Internal Flip-Flop with Pin-Selectable Mode | Single pin (Pin 7) selects between push-pull (for H-bridge) or parallel (for 3.0A single-ended) operation - no external logic required. |
| Analog Latched Shutdown | 130mV comparator threshold allows direct connection to low-value current-sense resistors for fast, reliable overcurrent protection. |
| Low Cross-Conduction Spike | 25ns max VC cross-conduction duration during output transitions minimizes shoot-through risk in bridge circuits. |
| Thermal Shutdown at 155°C | Self-protecting behavior under sustained overload or inadequate PCB copper - resets only after junction cools below hysteresis threshold. |
Applications
| Motor Drive Half-Bridge | Isolated DC-DC Converter Gate Drive |
|---|---|
|
Use Scenario: Driving complementary N-channel MOSFETs in a 48V BLDC motor half-bridge with cycle-by-cycle current limiting. IC Role / Device Role / Timing Role: UC2706DW acts as isolated gate driver interface, converting PWM signals into high-current, phase-controlled gate pulses with built-in deadtime via inhibit logic. Use Value: Eliminates need for discrete level shifters and external deadband generators; analog shutdown responds within 180ns to overcurrent events. |
Use Scenario: Driving primary-side MOSFETs in a flyback or forward converter using transformer-coupled PWM feedback. IC Role / Device Role / Timing Role: UC2706DW serves as secondary-side driver amplifier, accepting low-power PWM and delivering robust gate charge with <60ns rise/fall times. Use Value: Enables >200kHz switching with minimal gate drive loss; SOIC-16 footprint simplifies layout versus DIP alternatives. |
| Industrial Power Supply Control | UPS Inverter Stage |
|
Use Scenario: Controlling dual MOSFETs in a high-efficiency AC-DC PFC boost stage requiring precise timing and fault response. IC Role / Device Role / Timing Role: UC2706DW functions as synchronized gate driver with analog shutdown linked to current-sense amplifier output for instantaneous OCP. Use Value: 130mV shutdown threshold allows use of 5mΩ sense resistors, reducing power loss and thermal stress in 5kW systems. |
Use Scenario: Driving H-bridge IGBTs/MOSFETs in a 1kVA online UPS inverter with thermal monitoring and soft-failover capability. IC Role / Device Role / Timing Role: UC2706DW provides matched, high-current gate drive with thermal shutdown and latch-off behavior on overtemperature. Use Value: Integrated 155°C thermal cutoff prevents catastrophic failure during fan failure or ambient temperature excursions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UC3706DW | Identical SOIC-16 package and pinout; rated for 0°C to +70°C (vs. UC2706DW's –40°C to +85°C). | Targeted for commercial-grade power supplies and consumer electronics where extended temperature range is not required. | Select UC3706DW only for cost-sensitive, non-industrial applications with ambient ≤70°C. |
| UC2706J | Same electrical specs and temperature range (–40°C to +85°C), but in 16-pin CDIP (J) package with SNPB finish and no MSL rating. | Suitable for through-hole prototyping, military/aerospace legacy designs, or high-reliability applications requiring hermetic sealing. | Choose UC2706J when board assembly uses wave soldering or requires MIL-PRF-38535 compliance. |
Compared with UC3706DW and UC2706J, the UC2706DW uniquely balances industrial temperature tolerance (–40°C to +85°C), surface-mount manufacturability (SOIC-16, MSL-2), and RoHS compliance - making it optimal for volume production of ruggedized power electronics.
Availability
UC2706DW is available at Aetrix Electronics and suitable for industrial motor drives, isolated DC-DC converters, and UPS inverter stages requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for UC2706DW 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 leader specializing in analog, embedded processing, and power management technologies, with decades of heritage in high-reliability power control ICs.
The UC2706DW belongs to TI's UCx706 family of dual-output gate drivers, engineered specifically for robust, high-speed interfacing between PWM controllers and power MOSFETs in industrial and telecom power systems.
FAQ
What is the maximum continuous output current per channel for UC2706DW?
The UC2706DW supports ±500mA steady-state output current per channel, with ±1.5A peak transient capability into capacitive loads. This rating is validated under TA = –40°C to +85°C and requires proper PCB thermal design - including minimum 1-inch² copper pour connected to Pins 1–4 - to sustain continuous 500mA without thermal derating.
Does UC2706DW support push-pull operation, and how is it enabled?
Yes, UC2706DW supports true push-pull operation via its internal flip-flop, enabled by grounding Pin 7 (FLIP/FLOP). When Pin 7 is grounded, the N.I. INPUT toggles outputs A and B alternately; when open, both outputs operate in parallel. The flip-flop requires ≥200ns off-time between input pulses to reliably change state - a timing constraint explicitly defined in the UC2706DW datasheet.
What is the function of Pins 5 and 6 (STOP NON-INV. and STOP INV.) on UC2706DW?
Pins 5 and 6 form the differential input pair of UC2706DW's analog latched shutdown comparator, with a fixed 130mV threshold. When the voltage at Pin 5 exceeds Pin 6 by >130mV, the comparator triggers a latched shutdown that forces both outputs low until power-cycled. This feature is designed for direct connection to current-sense resistors and responds within 180ns - a value measured and specified in the UC2706DW electrical characteristics table.
Can UC2706DW operate from a 5V supply, and what are the trade-offs?
UC2706DW can operate from 5V VIN, but the datasheet specifies degraded response time and undefined output behavior if VC remains high while VIN drops below 5V. At 5V, the internal regulator operates near dropout, increasing propagation delays by ~25% and reducing noise immunity. For reliable 5V-only operation, TI recommends verifying timing margins in final application - the UC2706DW is optimized for 7–40V VIN per its supply voltage specification.
How does UC2706DW implement deadband control, and is external circuitry required?
UC2706DW implements deadband control via its dual inhibit inputs (Pins 13 and 14), referenced to Pin 15 (INHIBIT REF). By setting Pin 15 to 0.5–3.5V and driving one inhibit input with the complement of the other output's signal, the device inserts programmable deadtime - with 250ns inhibit delay - eliminating shoot-through without external diodes or RC networks. This architecture is confirmed in the UC2706DW application diagrams and truth table.
UC2706DW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Driven Configuration:
- Low-Side
- Channel Type:
- Independent
- Number of Drivers:
- 2
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 5V ~ 40V
- Logic Voltage - VIL, VIH:
- 0.8V, 2.2V
- Current - Peak Output (Source, Sink):
- 1.5A, 1.5A
- Input Type:
- Inverting, Non-Inverting
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- 40ns, 30ns
- Operating Temperature:
- -25°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
UC2706DW FAQ
1.How can I place an order for UC2706DW through Aetrix?
Please submit a Request for Quotation (RFQ) for UC2706DW 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 UC2706DW reliable?
The price and inventory of UC2706DW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UC2706DW is usually 5 days.
3.What payment methods are accepted for UC2706DW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UC2706DW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UC2706DW?
UC2706DW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UC2706DW 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 UC2706DW?
For technical support, including UC2706DW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UC2706DW requirements.
6.How does Aetrix verify that UC2706DW is sourced from the original manufacturer or authorized distributors?
All UC2706DW 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 UC2706DW meets industry standards.
7.What is the process for return or replacement of UC2706DW?
All UC2706DW units undergo pre-shipment inspection (PSI). If there is an issue with UC2706DW, 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 UC2706DW part is unused and in its original packaging.
Return procedure for UC2706DW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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