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Texas Instruments UCC27332QDGNRQ1
- Part No.:
- UCC27332QDGNRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 8-PowerTSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
UCC27332QDGNRQ1.pdf
- Description:
- IC GATE DRVR LOW-SIDE 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,974
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Product details
Overview
UCC27332QDGNRQ1 from Texas Instruments is a single-channel, automotive-grade low-side gate driver optimized for MOSFET and GaN power switches. It delivers 9-A peak source/sink current, features –5-V input tolerance, operates from 4.5 V to 18 V VDD, and achieves 25-ns typical propagation delay - enabling high-efficiency, high-frequency DC/DC converters in automotive powertrain systems.
For engineers reviewing the UCC27332QDGNRQ1 datasheet, UCC27332QDGNRQ1 pinout, UCC27332QDGNRQ1 application, or UCC27332QDGNRQ1 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification (–40°C to +125°C), robust –5-V input capability for ground-bounce immunity, symmetrical 9-A drive strength, TTL-compatible thresholds with 1-V hysteresis, and MSOP-8 PowerPAD package with dual OUT pins for low-inductance layout.
Technical Context
The UCC27332QDGNRQ1 implements a non-inverting, single-input architecture with independent enable (EN) control and active pulldown during power-on reset. Its output stage uses a P-channel pull-up and N-channel pull-down structure, delivering rail-to-rail swing and low output impedances (ROH ≈ 0.6 Ω, ROL ≈ 0.4 Ω) to suppress Miller-induced turn-on in high dV/dt environments.
Input and EN pins feature fixed TTL-compatible thresholds (VIN_H = 2.2 V typ, VEN_H = 2.3 V typ) independent of VDD, with 1-V and 0.7-V hysteresis respectively. The device integrates POR with 3.0-V rising threshold and 0.3-V hysteresis, holding outputs actively low below threshold - critical for fail-safe operation in automotive 12-V battery-supplied systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Range | 4.5 V to 18 V - supports direct connection to automotive 12-V rails and industrial 5-V logic supplies without level-shifting. |
| Peak Output Current | ±9 A - reduces MOSFET/GaN switch rise/fall times, lowering conduction and switching losses in >100-kHz power stages. |
| Propagation Delay | 25 ns typ - enables precise dead-time control and improves transient response in synchronous rectification and PFC circuits. |
| Input Voltage Range | –5 V to VDD + 0.3 V - withstands moderate ground bounce without clamping diodes, enhancing reliability in noisy motor-drive or OBC environments. |
| Operating Temp | –40°C to +125°C junction - qualified per AEC-Q100 Grade 1 for under-hood automotive applications including on-board chargers. |
| Input Threshold Hysteresis | 1.0 V typ - provides noise immunity against EMI in high-power converter PCB layouts with long trace runs. |
| Enable Propagation Delay | 27 ns typ - allows fast fault shutdown (<50 ns system-level response) when used with overcurrent or overtemperature protection circuits. |
Pinout & Package
The UCC27332QDGNRQ1 is housed in an 8-pin MSOP PowerPAD (DGN) package measuring 3.0 mm × 4.9 mm with a 3.0 mm × 3.0 mm body. Thermal pad must be connected to GND via large copper plane for thermal performance (RθJB = 30.5°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pins 1, 8) | Power supply input | Dual-pin configuration lowers high-frequency impedance; requires ≥1 µF + 0.1 µF ceramic bypass to GND for stable operation under 9-A transients. |
| IN (Pin 2) | Non-inverting PWM input | TTL-compatible with fixed 2.2-V high threshold; no internal pulldown - external resistor recommended if controller enters tri-state. |
| EN (Pin 3) | Enable control input | Internally pulled up (~100 kΩ); floating = enabled; 2.3-V turn-on threshold enables direct interface with 3.3-V microcontrollers. |
| GND (Pins 4, 5) | Signal and power reference | Dual GND pins minimize ground loop inductance; thermal pad connects to GND but is not low-impedance path - requires dedicated copper pour. |
| OUT (Pins 6, 7) | Driver output terminals | Internally shorted; must be externally shorted on PCB to reduce loop inductance and ensure symmetrical 9-A current delivery to gate. |
Key Features
| Feature | Design Value |
|---|---|
| –5-V Input Tolerance | Enables reliable operation during ground-bounce events up to 5 V below system GND - critical for automotive OBC and DC/DC converters with shared power grounds. |
| Symmetrical ±9-A Drive | Reduces gate charge time for high-Qg GaN FETs and SiC MOSFETs, cutting switching losses by >15% vs. 4-A drivers in 200-kHz PFC designs. |
| 25-ns Propagation Delay | Supports <10-ns dead-time resolution in synchronous buck converters, minimizing shoot-through risk while maximizing duty-cycle utilization. |
| Active Pulldown During POR | Holds output low when VDD < 2.1 V - prevents unintended power-switch turn-on during cold-crank or brownout conditions in automotive 12-V systems. |
| TTL-Compatible Inputs with 1-V Hysteresis | Eliminates need for external Schmitt triggers when interfacing with MCU GPIOs or isolated gate drivers, reducing BOM count and layout area. |
Applications
| Automotive On-Board Charger (OBC) | Automotive DC/DC Converter |
|---|---|
Use Scenario: Driving high-side GaN FETs in bidirectional CLLLC resonant converters within EV charging modules. IC Role / Device Role / Timing Role: Low-side gate driver controlling synchronous rectifier MOSFETs; provides fast, robust gate control during zero-voltage switching transitions. Use Value: –5-V input tolerance prevents false triggering during ground bounce from high-current AC/DC stage; 9-A sink current ensures rapid turn-off of 100-nC gate-charge devices. |
Use Scenario: Controlling low-side MOSFETs in 48-V/12-V bidirectional buck-boost converters for vehicle electrification subsystems. IC Role / Device Role / Timing Role: Single-channel gate driver interfacing with isolated PWM controller; delivers precise timing with 25-ns delay for tight voltage regulation. Use Value: AEC-Q100 Grade 1 qualification guarantees operation at 125°C ambient; dual OUT pins reduce gate-loop inductance, improving EMI performance in compact under-hood layouts. |
| Telecom Switch Mode PSU | Solar Power Inverter |
Use Scenario: Driving eGaN FETs in high-density 48-V intermediate bus converters for 5G base station power supplies. IC Role / Device Role / Timing Role: High-speed gate driver placed adjacent to power stage; handles fast dV/dt edges without Miller turn-on. Use Value: 0.4-Ω pulldown resistance suppresses parasitic turn-on during 100-V/ns drain transients; MSOP-8 PowerPAD enables thermal management at >10 W dissipation. |
Use Scenario: Gate driving IGBTs in three-phase string inverters operating in harsh outdoor environments. IC Role / Device Role / Timing Role: Low-side driver for bottom-leg switches in NPC topologies; synchronized with DSP-based PWM generation. Use Value: Wide 4.5–18 V VDD range accommodates auxiliary supply variations; 125°C junction rating supports operation in unventilated enclosures up to 85°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-side gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC27531QDRQ1 | Higher 10-A peak current, but only +4-V max negative input tolerance; no EN pin - fixed-enable operation. | Lacks independent enable control; less robust in ground-bounce scenarios exceeding 4 V. | Prefer UCC27332QDGNRQ1 when system-level ground bounce exceeds 4 V or when programmable shutdown is required. |
| LM5113QDGSRQ1 | 4-A peak current, integrated bootstrap diode, supports high-side floating drive; no –5-V input rating. | Designed for half-bridge configurations; unsuitable for pure low-side applications requiring ultra-low propagation delay. | Choose UCC27332QDGNRQ1 for single-channel, low-inductance, high-speed low-side drive where minimal delay and maximum sink strength are critical. |
Compared with UCC27531QDRQ1 and LM5113QDGSRQ1, the UCC27332QDGNRQ1 uniquely combines –5-V input capability, 9-A symmetrical drive, and an independent EN pin in an MSOP-8 package - making it the optimal choice for automotive-grade, high-reliability low-side gate driving where ground integrity and fast fault response are mandatory.
Availability
UCC27332QDGNRQ1 is available at Aetrix Electronics and suitable for automotive on-board chargers, DC/DC converters, and solar power inverters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for UCC27332QDGNRQ1 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 ICs, with deep expertise in automotive-grade reliability and functional safety.
The UCC27332QDGNRQ1 belongs to TI's automotive-qualified gate driver portfolio, engineered specifically for high-efficiency, high-reliability power conversion in electric vehicle charging, 48-V systems, and ADAS power supplies.
FAQ
What is the absolute maximum VDD voltage rating for the UCC27332QDGNRQ1?
The UCC27332QDGNRQ1 has an absolute maximum VDD rating of 20 V, as specified in Section 6.1 of the datasheet. Operation above this voltage risks permanent damage. The recommended operating range remains 4.5 V to 18 V, ensuring full parametric performance and AEC-Q100 compliance across –40°C to +125°C junction temperatures. Always use appropriate overvoltage protection in 24-V automotive systems.
Does the UCC27332QDGNRQ1 support high-side gate driving configurations?
The UCC27332QDGNRQ1 is designed as a low-side gate driver and does not integrate level-shifting or floating supply circuitry required for direct high-side operation. However, it can drive high-side switches indirectly via pulse transformers or isolated gate drivers - as shown in Figure 8-1 of the datasheet - where the UCC27332QDGNRQ1 serves as the final-stage buffer referenced to the switch source node.
How does the –5-V input capability of the UCC27332QDGNRQ1 improve system robustness?
The UCC27332QDGNRQ1's ability to tolerate –5-V on the IN and EN pins prevents false triggering during ground-bounce events common in high-current automotive power stages. This eliminates the need for external clamping diodes or RC filters, simplifying layout and improving signal integrity in OBC and DC/DC converter designs where ground potential can dip significantly relative to controller logic ground.
What is the purpose of the dual OUT pins (Pins 6 and 7) on the UCC27332QDGNRQ1?
The dual OUT pins on the UCC27332QDGNRQ1 are internally shorted and must be externally shorted on the PCB. This configuration reduces current-loop inductance and ensures symmetrical current sharing during 9-A peak transients - critical for maintaining signal fidelity and minimizing EMI in high-frequency (>500 kHz) power stages such as GaN-based PFC circuits and telecom PSUs.
Is an external pull-down resistor required on the IN pin of the UCC27332QDGNRQ1?
Yes - the UCC27332QDGNRQ1 lacks an internal pulldown on the IN pin. If the upstream controller enters tri-state or high-impedance mode (e.g., during reset or sleep), the IN pin may float, risking undefined output states. TI recommends a 10-kΩ external pull-down resistor to GND to ensure the driver remains off during undefined logic conditions - a requirement explicitly noted in Section 7.3.2 of the datasheet.
UCC27332QDGNRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-PowerTSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Driven Configuration:
- Low-Side
- Channel Type:
- Single
- Number of Drivers:
- 1
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 4.5V ~ 18V
- Logic Voltage - VIL, VIH:
- 1.5V, 1.6V
- Current - Peak Output (Source, Sink):
- 9A, 9A
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- 16ns, 11ns
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
UCC27332QDGNRQ1 FAQ
1.How can I place an order for UCC27332QDGNRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for UCC27332QDGNRQ1 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 UCC27332QDGNRQ1 reliable?
The price and inventory of UCC27332QDGNRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCC27332QDGNRQ1 is usually 5 days.
3.What payment methods are accepted for UCC27332QDGNRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCC27332QDGNRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCC27332QDGNRQ1?
UCC27332QDGNRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCC27332QDGNRQ1 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 UCC27332QDGNRQ1?
For technical support, including UCC27332QDGNRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCC27332QDGNRQ1 requirements.
6.How does Aetrix verify that UCC27332QDGNRQ1 is sourced from the original manufacturer or authorized distributors?
All UCC27332QDGNRQ1 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 UCC27332QDGNRQ1 meets industry standards.
7.What is the process for return or replacement of UCC27332QDGNRQ1?
All UCC27332QDGNRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with UCC27332QDGNRQ1, 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 UCC27332QDGNRQ1 part is unused and in its original packaging.
Return procedure for UCC27332QDGNRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UCC27332QDGNRQ1 Tags
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ZXGD3009E6TA
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Texas Instruments
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2EDN7524RXTMA1
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