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NXP Semiconductors UBA2032T/N2,118
- Part No.:
- UBA2032T/N2,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Full Half-Bridge (H Bridge) Drivers
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
UBA2032T/N2,118.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 24SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,830
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Product details
Overview
UBA2032T/N2,118 from NXP Semiconductors (formerly Philips) is a high-voltage monolithic full-bridge gate driver IC fabricated in EZ-HV SOI process, designed to drive four external MOSFETs in full-bridge topology for HID lamp ballasts. It integrates bootstrap diodes, high-voltage level shifters, adaptive non-overlap circuitry, and supports internal/external oscillator modes with up to 100 kHz bridge frequency and 550 V maximum bridge voltage.
For engineers reviewing the UBA2032T/N2,118 datasheet, UBA2032T/N2,118 pinout, UBA2032T/N2,118 application, or UBA2032T/N2,118 equivalent, this page delivers verified technical context, SO24 package mapping, confirmed gate drive specifications, start-up delay and bridge disable behavior, and real-world HID commutation use cases - all extracted from the official 2005 Philips specification.
Technical Context
The UBA2032T/N2,118 implements dual-level high-voltage level shifting: one for left half-bridge (SHL/FSL/GHL/GLL) and one for right half-bridge (SHR/FSR/GHR/GLR), enabling independent floating supply operation up to 564 V. Its adaptive non-overlap circuit senses half-bridge voltage slope (5–25 V/µs) to dynamically set minimum 600–1300 ns dead time, eliminating fixed timing constraints across frequency.
Oscillation control supports three modes: internal RC oscillator (up to 100 kHz, divider-enabled for 50% duty cycle), external oscillator without divider (bridge frequency = input frequency), and external oscillator with divider (bridge frequency = half input frequency). All modes trigger commutation on falling edge of RC or EXTDR signal relative to −LVS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bridge Voltage Max | 550 V - supports direct connection to HID lamp bus without external HV regulation |
| Bridge Frequency Range | DC to 100 kHz - covers standard HID ignition (≈100–500 Hz) and steady-state operation (≈100–200 kHz) |
| Non-overlap Time | 600–1300 ns min - adaptive timing prevents shoot-through under varying load and temperature |
| High-Side Gate Drive | Voltage referenced to SHL/SHR; supports bootstrap operation up to 564 V floating supply |
| Logic Supply Range | +LVS/−LVS: 0–464 V differential - enables direct interface to system ground or negative-lamp configurations |
| UVLO Thresholds | VHV(rel) = 11–14 V, VHV(UVLO) = 8.5–11.5 V - ensures clean start-up and reset during brown-out |
| Output Sink/Source | 200 mA sink / 180 mA source - drives typical MOSFET gate charge (Qg ≈ 20–50 nC) at ≤100 kHz |
Pinout & Package
UBA2032T/N2,118 is housed in SO24 plastic small outline package (SOT137-1), 24-pin, 7.5 mm body width, with gull-wing leads. Pin numbering follows Fig.2 in the 2005 datasheet; pin 1 = −LVS, pin 24 = GHR.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (−LVS) | Negative logic supply reference | Establishes ground reference for logic inputs (EXTDR, BD, SU, DD); enables negative-lamp voltage operation |
| 2 (EXTDR) | External oscillator input | Accepts TTL/CMOS signal referenced to −LVS; falling edge triggers bridge commutation |
| 3 (+LVS) | Positive logic supply | Provides logic rail up to 464 V vs −LVS; powers internal logic and level shifters |
| 5 (HV) | High-voltage supply input | Primary power source (0–550 V); powers internal regulators and high-side drivers |
| 7 (VDD) | Internal low-voltage supply | 10.5–13.5 V regulated output; powers gate drivers and logic; requires external decoupling capacitor |
| 8 (SU) | Start-up delay control | RC-filtered input to delay power release until MOSFET gate voltage reaches sufficient level |
| 10 (BD) | Bridge disable | Active-high input (1.23–1.35 V threshold); overrides all states to force all gates LOW |
| 11 (RC) | Oscillator timing | Connects external R/C network to set internal oscillator frequency; divider enabled when DD = SGND |
| 12 (SGND) | Signal ground | Reference for HV-related pins (HV, SHL, SHR, FSL, FSR); isolated from PGND |
| 13 (GHL) | Higher left gate driver | Drives gate of upper-left MOSFET; output referenced to SHL (source node) |
| 14 (FSL) | Floating supply left | Bootstrap capacitor connection point for left high-side driver; swings up to VSHL + 14 V |
| 15 (SHL) | Source of higher left MOSFET | High-side source node reference; withstands −3 V to +550 V vs PGND/SGND |
| 17 (GLL) | Lower left gate driver | Drives gate of lower-left MOSFET; output referenced to PGND |
| 18 (PGND) | Power ground | Return path for low-side MOSFET sources and gate drive current |
| 20 (GLR) | Lower right gate driver | Drives gate of lower-right MOSFET; output referenced to PGND |
| 22 (SHR) | Source of higher right MOSFET | High-side source node reference; withstands −3 V to +550 V vs PGND/SGND |
| 23 (FSR) | Floating supply right | Bootstrap capacitor connection point for right high-side driver; swings up to VSHR + 14 V |
| 24 (GHR) | Higher right gate driver | Drives gate of upper-right MOSFET; output referenced to SHR (source node) |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bootstrap diodes | Eliminates need for external diodes in bootstrap gate drive circuits, reducing BOM count and layout area |
| Adaptive non-overlap | Dynamically adjusts dead time based on actual half-bridge voltage slew rate, ensuring robust shoot-through prevention across operating conditions |
| Predefined start-up position | Guarantees GLR and GHL go HIGH while GLL and GHR remain LOW at power-on, enabling controlled initial lamp ignition |
| High-voltage level shift function | Enables direct driving of high-side MOSFETs with source voltages up to +550 V or −450 V relative to system ground |
| Bridge disable override | Hardwired priority function that forces all gate outputs LOW regardless of oscillator state or input signals |
Applications
| HID Lamp Ballast | Negative-Voltage Lamp Systems |
|---|---|
|
Use Scenario: Driving 35–70 W metal halide or high-pressure sodium lamps in street lighting fixtures. IC Role / Device Role / Timing Role: Full-bridge commutator controlling MOSFET switching sequence; provides adaptive dead time and start-up sequencing for reliable lamp ignition and warm-up. Use Value: Enables stable AC square-wave lamp current at 100–500 Hz with no external timing components required when using internal oscillator mode. |
Use Scenario: Operating HID lamps with cathode-negative configuration to reduce sodium migration and extend lamp life. IC Role / Device Role / Timing Role: High-voltage gate driver supporting −450 V bridge node voltage; uses −LVS/+LVS rails referenced to system ground for safe logic interfacing. Use Value: Allows direct integration into grounded-control systems without level-shifting isolators or optocouplers. |
| External Oscillator-Controlled Ballast | Programmable Start-Up Delay Ballast |
|
Use Scenario: Synchronizing multiple HID lamps to a master clock in architectural or studio lighting systems. IC Role / Device Role / Timing Role: External-drive-mode full-bridge controller accepting TTL/CMOS clock on EXTDR; bridge frequency equals input frequency when divider is disabled. Use Value: Eliminates frequency drift between lamps and enables precise phase alignment for flicker-free multi-lamp operation. |
Use Scenario: Delaying full-power bridge enable until after ignitor pulse completion in electronic HID ballasts. IC Role / Device Role / Timing Role: Start-up delay function via RC network on SU pin; holds bridge in safe pre-charge state until VDD reaches sufficient level. Use Value: Prevents premature MOSFET turn-on before bootstrap capacitors are fully charged, avoiding gate underdrive and device stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar full-bridge gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IRS2453D(S)PbF | Half-bridge driver with integrated oscillator; lacks full-bridge topology and adaptive non-overlap | Requires external logic or dual ICs to implement full-bridge; no built-in start-up sequencing or negative-voltage support | Choose IRS2453D only if half-bridge topology suffices and external timing control is acceptable |
| UCC27211D | High-speed dual low-side/high-side driver; no integrated oscillator, bootstrap diodes, or UVLO for HV supply | Needs external PWM controller, bootstrap diodes, and HV biasing; not qualified for 550 V bridge operation | UCC27211D suits high-frequency synchronous buck or motor drives but cannot replace UBA2032T/N2,118 in HID ballast designs |
Compared with IRS2453D and UCC27211D, the UBA2032T/N2,118 uniquely integrates full-bridge control, adaptive dead time, HV level shifting, and lamp-specific start-up sequencing - making it purpose-built for single-chip HID ballast implementation without supplemental ICs or discrete protection.
Availability
UBA2032T/N2,118 is available at Aetrix Electronics and suitable for HID lamp ballasts, industrial lighting control systems, and high-voltage AC power conversion requiring stable component supply, long-term lifecycle support, and automotive-grade reliability validation.
Supply support for UBA2032T/N2,118 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
NXP Semiconductors (originally Philips Semiconductors) is a global leader in high-voltage analog and mixed-signal ICs, with deep expertise in lighting control, power management, and automotive-grade reliability.
The UBA2032 series was developed specifically for high-intensity discharge (HID) lamp commutation, targeting robust, single-chip ballast solutions with integrated safety features and wide input voltage tolerance.
FAQ
What is the maximum bridge voltage rating for UBA2032T/N2,118?
The UBA2032T/N2,118 supports a maximum bridge voltage of 550 V DC, as specified in the Absolute Maximum Ratings table. This allows direct interface to standard HID lamp bus voltages without intermediate regulation, and the high-side drivers tolerate source voltages up to +550 V or −450 V relative to system ground.
How does the adaptive non-overlap function work in UBA2032T/N2,118?
The UBA2032T/N2,118 implements adaptive non-overlap by sensing the dV/dt of the half-bridge voltage (5–25 V/µs) at SHL and SHR. It dynamically adjusts dead time to ensure minimum 600–1300 ns between high-side and low-side turn-off/on transitions, preventing shoot-through across frequency and load variations without fixed timing components.
Can UBA2032T/N2,118 drive MOSFETs in a negative-lamp-voltage configuration?
Yes - the UBA2032T/N2,118 supports negative lamp voltage operation up to −450 V, as confirmed in Figure 7 of the datasheet. By referencing +LVS and HV to the control unit's supply and grounding −LVS to SGND, the IC maintains correct logic levels and gate drive integrity even with high negative bridge node potentials.
What is the role of pin SU in UBA2032T/N2,118?
Pin SU (start-up delay) on the UBA2032T/N2,118 delays release of power drive until VDD reaches sufficient level for reliable MOSFET gate drive. An external RC network (R from VDD to SU, C from SU to SGND) sets the delay, preventing premature oscillation before bootstrap capacitors are charged.
Does UBA2032T/N2,118 require external bootstrap diodes?
No - the UBA2032T/N2,118 integrates bootstrap diodes internally, as explicitly stated in the Features section. This eliminates the need for external diodes in the FSL and FSR paths, simplifying layout and improving reliability in HID lamp ballast applications.
UBA2032T/N2,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 24-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- -
- Applications:
- -
- Interface:
- -
- Load Type:
- -
- Technology:
- -
- Rds On (Typ):
- -
- Current - Output / Channel:
- -
- Current - Peak Output:
- -
- Voltage - Supply:
- 10.5V ~ 13.5V
- Voltage - Load:
- -
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Fault Protection:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-SO
UBA2032T/N2,118 FAQ
1.How can I place an order for UBA2032T/N2,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for UBA2032T/N2,118 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 UBA2032T/N2,118 reliable?
The price and inventory of UBA2032T/N2,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UBA2032T/N2,118 is usually 5 days.
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UBA2032T/N2,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UBA2032T/N2,118 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 UBA2032T/N2,118?
For technical support, including UBA2032T/N2,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UBA2032T/N2,118 requirements.
6.How does Aetrix verify that UBA2032T/N2,118 is sourced from the original manufacturer or authorized distributors?
All UBA2032T/N2,118 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 UBA2032T/N2,118 meets industry standards.
7.What is the process for return or replacement of UBA2032T/N2,118?
All UBA2032T/N2,118 units undergo pre-shipment inspection (PSI). If there is an issue with UBA2032T/N2,118, 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 UBA2032T/N2,118 part is unused and in its original packaging.
Return procedure for UBA2032T/N2,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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