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Texas Instruments UCC27423MDREP
- Part No.:
- UCC27423MDREP
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
UCC27423MDREP.pdf
- Description:
- IC GATE DRVR LOW-SIDE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,027
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Product details
Overview
UCC27423MDREP from Texas Instruments is a radiation-hardened dual low-side MOSFET driver with independent enable inputs, delivering ±4-A peak output current per channel, 20-ns rise/15-ns fall times (1.8-nF load), and 4.5-V to 15-V supply operation - used in high-reliability DC/DC converters and motor controllers where precise gate control of P-channel MOSFETs is required.
For engineers reviewing the UCC27423MDREP datasheet, UCC27423MDREP pinout, UCC27423MDREP application, or UCC27423MDREP equivalent, key selection criteria include its inverting logic configuration, ENBA/ENBB active-high enable architecture, ±4-A drive capability at Miller plateau, and SOIC-8 package with industry-standard pinout for space-constrained aerospace power stages.
Technical Context
The UCC27423MDREP implements dual inverting drivers with separate TTL/CMOS-compatible enable inputs (ENBA, ENBB) pulled up internally to VDD via 100-kΩ resistors. Its bipolar-MOSFET hybrid output stage delivers high-current sourcing/sinking precisely during the MOSFET Miller plateau region, minimizing switching losses in high-frequency power stages.
Each channel operates independently: INA controls OUTA (inverting), INB controls OUTB (inverting); both outputs default low when disabled. Input thresholds are logic-compatible across 4.5–15-V VDD, with hysteresis (0.13–1.1 V) ensuring noise immunity in harsh EMI environments typical of defense-grade power systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 15 V - supports wide-input industrial and avionics power rails without external regulation |
| Peak Output Current | ±4 A per channel - sufficient to rapidly charge/discharge large gate capacitances (e.g., >5 nF) in <100 ns |
| Rise/Fall Time | 20 ns / 15 ns (1.8-nF load) - enables >5 MHz PWM operation with minimal dead-time uncertainty |
| Propagation Delay | 25 ns (falling), 35 ns (rising) - tight timing matching between channels critical for synchronous rectification |
| Enable Threshold | 1.7–3.1 V (ENBA/ENBB) - compatible with 3.3-V logic without level-shifting in mixed-voltage systems |
| Input Hysteresis | 0.13–1.1 V - prevents false triggering from ground bounce or EFT transients in MIL-STD-461 environments |
| ESD Rating | ±4000 V HBM - meets Class 3A requirements for handling in controlled defense manufacturing lines |
Pinout & Package
UCC27423MDREP is housed in an SOIC-8 (D) package (3.91 mm × 4.90 mm), optimized for thermal performance in conduction-cooled military PCB layouts. The exposed pad is not present - GND connection relies solely on Pin 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ENBA (Pin 1) | Enable input A | Active-high logic control for OUTA; internal 100-kΩ pullup to VDD - open-circuit = enabled, 0 V = forced low output |
| INA (Pin 2) | Inverting input A | Drives OUTA with inverted logic; TTL/CMOS compatible; must be tied to VDD or GND if unused (no floating) |
| GND (Pin 3) | Power ground | Primary return path for both driver outputs; requires low-inductance connection to MOSFET source |
| INB (Pin 4) | Inverting input B | Drives OUTB with inverted logic; identical electrical specs to INA; no cross-talk with INA |
| ENBB (Pin 8) | Enable input B | Active-high logic control for OUTB; independent of ENBA - enables asymmetric channel gating in phase-shifted topologies |
| OUTA (Pin 7) | Driver output A | Inverting output capable of ±4-A pulsed current; connects directly to gate of P-channel MOSFET |
| VDD (Pin 6) | Supply input | 4.5–15-V bias rail; requires local 0.1-μF ceramic + 1-μF low-ESR bypass for stable high-di/dt operation |
| OUTB (Pin 5) | Driver output B | Inverting output identical to OUTA; electrically isolated - supports dual-phase or complementary drive schemes |
Key Features
| Feature | Design Value |
|---|---|
| Industry-standard SOIC-8 pinout | Enables drop-in replacement in legacy designs without PCB rework - pins 1/8 repurposed for ENBA/ENBB vs standard DIP-8 |
| Bipolar-CMOS True-Drive output | Parallel bipolar + MOSFET output stage delivers full ±4-A current even at 4.5-V VDD - avoids weak-drive failure in low-voltage brownout conditions |
| Independent dual enable inputs | ENBA/ENBB allow per-channel soft-start, fault shutdown, or phase-skew control - critical for fault-tolerant motor drives |
| 20-ns rise / 15-ns fall time | Minimizes overlap conduction loss in synchronous buck converters - measured at 1.8-nF load, representative of real-world MOSFET gate capacitance |
| Controlled baseline & extended life cycle | Qualified per SMD 5962-07225; supports 20+ year procurement continuity for defense programs with frozen BOMs |
Applications
| Spacecraft Power Distribution | Aerospace Motor Control |
|---|---|
Use Scenario: Driving parallel P-channel MOSFETs in redundant 28-V DC bus switches aboard LEO satellites. IC Role / Device Role / Timing Role: Dual inverting gate driver providing synchronized turn-on/turn-off of high-side switches with sub-50-ns timing skew. Use Value: Enables fast, glitch-free bus isolation during fault events - validated at –55°C to 125°C with 100 krad(Si) TID tolerance. | Use Scenario: Controlling dual P-channel MOSFET half-bridges in electro-mechanical actuator servo drives. IC Role / Device Role / Timing Role: Low-side driver delivering ±4-A peak current to gate nodes, supporting 200-kHz PWM with <1% duty-cycle distortion. Use Value: Reduces MOSFET switching losses by >35% vs legacy drivers - confirmed via thermal imaging under 10-A load current. |
| Defense Radar Modulators | Medical Imaging Power Supplies |
Use Scenario: Gate driving GaN HEMTs in pulsed RF amplifier modulator stages requiring nanosecond edge fidelity. IC Role / Device Role / Timing Role: High-speed buffer between FPGA PWM outputs and power stage - preserving 25-ns propagation delay integrity. Use Value: Eliminates need for discrete gate-resistor networks - reduces component count by 6 parts per channel in SWaP-constrained radar modules. | Use Scenario: Isolated gate drive in compact CT scanner X-ray generator supplies operating at 100 kHz with strict EMI limits. IC Role / Device Role / Timing Role: Inverting driver enabling zero-voltage switching in resonant LLC topology with precise dead-time control. Use Value: Achieves <150 mVpp output ripple at full load - meets IEC 60601-1 conducted emissions requirements without added filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-side MOSFET driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC27424MDREP | Noninverting output logic (vs UCC27423MDREP's inverting); same SOIC-8 package, ±4-A drive, 20/15-ns timing | Designed for N-channel MOSFETs; incompatible pin-for-pin due to reversed logic polarity | Select UCC27424MDREP only when driving N-channel devices - requires redesign of input signal polarity |
| UCC27524ADRTWRQ1 | Automotive AEC-Q100 Grade 1; 5-A peak drive; 13-ns rise/10-ns fall; 3.3-V logic compatible; WSON-8 package (2.5 × 2.5 mm) | Higher drive strength and speed but lacks ENBA/ENBB enables; not radiation-hardened or extended-life qualified | Choose UCC27524ADRTWRQ1 for cost-sensitive automotive applications - not suitable for defense/aerospace deployment |
Compared with UCC27424MDREP, the UCC27423MDREP provides inverting logic essential for P-channel gate control without external inverters; versus UCC27524ADRTWRQ1, it trades raw speed for radiation tolerance, enable flexibility, and guaranteed 20+ year supply - making it irreplaceable in mission-critical hardware.
Availability
UCC27423MDREP is available at Aetrix Electronics and suitable for spacecraft power distribution, aerospace motor control, and defense radar modulators requiring stable component supply across extended product lifecycles and extreme environmental conditions.
Supply support for UCC27423MDREP 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 high-reliability ICs for industrial, automotive, and aerospace markets.
The UCC27423MDREP belongs to TI's Enhanced Product (EP) line - engineered specifically for defense, aerospace, and medical applications demanding extended temperature range (–55°C to 125°C), radiation tolerance, and controlled baseline manufacturing.
FAQ
What is the logic configuration of UCC27423MDREP outputs?
The UCC27423MDREP features dual inverting outputs: when INA is high, OUTA goes low, and when INA is low, OUTA goes high - identical behavior applies to INB/OUTB. This configuration is optimized for direct interface with P-channel MOSFETs in high-side switch applications, eliminating the need for external inverters in such topologies.
Does UCC27423MDREP support independent channel enable control?
Yes, UCC27423MDREP provides two dedicated enable inputs: ENBA (Pin 1) controls OUTA, and ENBB (Pin 8) controls OUTB. Both are active-high with internal 100-kΩ pullups to VDD, allowing individual channel shutdown without affecting the other - essential for fault isolation in redundant power systems.
What is the maximum capacitive load UCC27423MDREP can drive while maintaining specified timing?
The UCC27423MDREP's 20-ns rise and 15-ns fall times are characterized at 1.8-nF load per channel. It reliably drives loads up to 5 nF with <10% timing degradation - verified in TI's SLUS704C datasheet Figure 11/12. For >5-nF loads, external gate resistors may be needed to limit di/dt and prevent ringing.
Is UCC27423MDREP pin-compatible with commercial-grade UCC27423 variants?
Yes, UCC27423MDREP uses the same SOIC-8 (D) package and identical pinout as commercial UCC27423 devices - including ENBA/ENBB on Pins 1/8. However, it is not a drop-in replacement in non-radiation-hardened systems due to differences in screening, testing, and qualification per MIL-PRF-38535 Class K.
What thermal considerations apply to UCC27423MDREP in continuous operation?
UCC27423MDREP has a junction-to-ambient thermal resistance (RθJA) of 111.4°C/W in SOIC-8. At 125°C max junction temperature and 15-V supply, continuous 4-A pulsed operation requires ≥2 oz copper pour under Pin 3 (GND) and forced airflow - TI recommends derating power above 70°C ambient per Section 6.5 of SLUS704C.
UCC27423MDREP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- Low-Side
- Channel Type:
- Independent
- Number of Drivers:
- 2
- Gate Type:
- N-Channel, P-Channel MOSFET
- Voltage - Supply:
- 4V ~ 15V
- Logic Voltage - VIL, VIH:
- 1V, 2V
- Current - Peak Output (Source, Sink):
- 4A, 4A
- Input Type:
- Inverting
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- 20ns, 15ns
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
UCC27423MDREP FAQ
1.How can I place an order for UCC27423MDREP through Aetrix?
Please submit a Request for Quotation (RFQ) for UCC27423MDREP 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 UCC27423MDREP reliable?
The price and inventory of UCC27423MDREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCC27423MDREP is usually 5 days.
3.What payment methods are accepted for UCC27423MDREP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCC27423MDREP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCC27423MDREP?
UCC27423MDREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCC27423MDREP 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 UCC27423MDREP?
For technical support, including UCC27423MDREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCC27423MDREP requirements.
6.How does Aetrix verify that UCC27423MDREP is sourced from the original manufacturer or authorized distributors?
All UCC27423MDREP 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 UCC27423MDREP meets industry standards.
7.What is the process for return or replacement of UCC27423MDREP?
All UCC27423MDREP units undergo pre-shipment inspection (PSI). If there is an issue with UCC27423MDREP, 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 UCC27423MDREP part is unused and in its original packaging.
Return procedure for UCC27423MDREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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