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Analog Devices Inc. LTC7066RMSE#PBF
- Part No.:
- LTC7066RMSE#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Gate Drivers
- Package:
- 12-TSSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC7066RMSE#PBF.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 12MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:107
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Product details
Overview
LTC7066RMSE#PBF from Analog Devices is a 150V half-bridge gate driver IC for dual N-channel MOSFETs in high-noise, high-voltage power stages. It features independent floating grounds (SW and BGRTN), 0.8Ω pull-down / 1.5Ω pull-up drive strength, adjustable dead time via external resistor, and adaptive shoot-through protection. Used in automotive DC/DC converters and telecom half-bridge inverters.
For engineers reviewing the LTC7066RMSE#PBF datasheet, LTC7066RMSE#PBF pinout, LTC7066RMSE#PBF application, or LTC7066RMSE#PBF equivalent, key selection criteria include its ±10V ground difference tolerance, 140V max input voltage independent of VCC, 4.3V VCC UVLO threshold, and thermally enhanced 12-lead MSOP package with exposed SGND pad.
Technical Context
The LTC7066RMSE#PBF implements dual independent level-shifted drivers with symmetric floating supply domains: BST–SW for top-side and BGVCC–BGRTN for bottom-side, each supporting 4V–14V gate drive. Its adaptive shoot-through protection monitors MOSFET gate-source voltage transitions to prevent simultaneous conduction.
Dead time is programmable from 32ns to 250ns via a single resistor on the DT pin, and internal 1000kΩ pull-downs on TOPIN/BOTIN ensure safe default low-state operation. Fault detection includes VCC UVLO/OVLO (4.3V/14.6V), floating supply UVLO (3.4V for BST–SW and BGVCC–BGRTN), and thermal shutdown at ~180°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VMAX Input Voltage | 150V absolute max; enables use with 140V bus systems without derating |
| VCC Operating Range | 5V–14V; powers internal logic and generates 4.5V bias rail |
| TG/BG Drive Strength | 0.8Ω pull-down / 1.5Ω pull-up; delivers 6A peak sink / 3A peak source at 10V |
| Dead Time Range | 32ns–250ns via RDT; prevents shoot-through in high-dV/dt half-bridge switching |
| Ground Difference Tolerance | ±10V between SW/BGRTN and SGND; ensures noise immunity in high-transient environments |
| Junction Temp Range | −40°C to +150°C; qualified per AEC-Q100 Grade 0 for automotive under-hood use |
| Package Thermal θJA | 40°C/W (MSOP); requires soldered exposed pad to PCB ground for rated performance |
Pinout & Package
Package: 12-lead plastic MSOP with exposed pad (Pin 13 = SGND), thermally enhanced for 150°C operation. Exposed pad must be soldered to PCB ground plane for electrical integrity and thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TOPIN | High-side logic input | TTL/CMOS-compatible; 1.75V VIH / 0.5V VIL thresholds with hysteresis; internal 1000kΩ pull-down to SGND |
| BOTIN | Low-side logic input | Independent control path; same thresholds and pull-down as TOPIN |
| FLT | Open-drain fault indicator | Pulls low on VCC UVLO/OVLO, floating supply UVLO, or thermal shutdown; 60Ω typical pull-down |
| DT | Dead-time programming node | Resistor to SGND sets propagation delay (32–250ns) between BG low → TG high and TG low → BG high |
| VCC | IC bias supply | 5–14V input; powers internal circuitry and generates 4.5V reference; independent of VIN |
| BGVCC | Bottom gate driver supply | Floating supply referenced to BGRTN; 4–14V range; requires local bypass capacitor to BGRTN |
| BGRTN | Bottom driver return | Kelvin connection point to bottom MOSFET source; supports −10V to +150V offset vs SGND |
| BG | Bottom gate driver output | Swings between BGVCC and BGRTN; 0.8Ω/1.5Ω drive strength; drives N-MOSFET gate |
| BST | Top gate driver supply | Floating supply referenced to SW; 4–14V range; requires local bootstrap capacitor to SW |
| TG | Top gate driver output | Swings between BST and SW; matched drive strength to BG; Kelvin-connected to top MOSFET gate |
| SW | Top driver return | Kelvin connection point to top MOSFET source; supports −10V to +150V offset vs SGND |
| SGND | Chip ground / thermal pad | Reference for VCC, DT, FLT, TOPIN, BOTIN; exposed pad (Pin 13) must be soldered to PCB ground |
Key Features
| Feature | Design Value |
|---|---|
| Symmetric floating gate driver architecture | Independent BST–SW and BGVCC–BGRTN domains enable true differential noise immunity up to ±10V ground shift |
| Adjustable dead time with resistor programming | RDT from 0Ω to open sets precise 32–250ns delay, eliminating need for external timing ICs or complex logic |
| Adaptive shoot-through protection | Hardware-level monitoring of MOSFET VGS transitions prevents cross-conduction without software or external sensing |
| Open-drain fault flag with built-in delay | FLT asserts low within microseconds on fault; 100µs release delay prevents chatter during transient recovery |
| AEC-Q100 Grade 0 qualification | Validated for −40°C to +150°C junction operation in automotive powertrain and body electronics |
Applications
| Automotive DC/DC Converters | Telecom Half-Bridge Inverters |
|---|---|
Use Scenario: 48V–12V bidirectional buck-boost converter in 48V mild-hybrid vehicle architectures. IC Role / Device Role / Timing Role: Dual N-MOSFET half-bridge driver with independent floating grounds enabling high-efficiency synchronous rectification under high EMI conditions. Use Value: ±10V ground tolerance and adaptive shoot-through protection eliminate MOSFET failure during load dump transients and cold-crank events. | Use Scenario: Isolated 48V telecom power supply using active clamp forward or phase-shifted full-bridge topology. IC Role / Device Role / Timing Role: High-side/low-side gate driver with programmable dead time ensuring ZVS/ZCS transition integrity at 200–500kHz switching frequencies. Use Value: 0.8Ω pull-down resistance ensures rapid turn-off of high-Ciss GaN or SiC MOSFETs, reducing switching losses by >15% versus legacy drivers. |
| Industrial Motor Drives | Server VRM Power Stages |
Use Scenario: 3-phase inverter stage in HVAC compressor drives operating from 300V DC bus. IC Role / Device Role / Timing Role: Robust gate driver with Kelvin-referenced SW/BGRTN pins minimizing gate loop inductance and preventing false turn-on due to dV/dt coupling. Use Value: 140V max input voltage rating allows direct interface to unregulated DC link without auxiliary regulation, simplifying BOM. | Use Scenario: Multiphase buck converter supplying CPU/GPU core voltage in AI accelerator servers. IC Role / Device Role / Timing Role: High-current gate driver enabling fast slew rates (14ns fall time) for 3.3nF gate loads, critical for sub-100ns dead time control. Use Value: Matched 1.5Ω pull-up / 0.8Ω pull-down impedances reduce gate drive asymmetry, improving current sharing across paralleled phases. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar half-bridge gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5109BMM/NOPB | Fixed 100ns dead time; no adjustable DT pin; lower 100V abs max rating; no adaptive shoot-through protection | Suitable for cost-sensitive industrial SMPS where programmability and automotive-grade reliability are not required | Select when design prioritizes simplicity over precision dead time tuning and operates below 100V bus |
| UCC27211DRCR | 120V abs max; no floating ground tolerance specification; fixed 50ns dead time; no open-drain FLT pin | Targeted at consumer/commercial AC/DC adapters and LED drivers with moderate noise immunity needs | Choose for non-automotive applications requiring higher peak current (4A source/4A sink) but accepting reduced HV robustness |
Compared with LM5109BMM/NOPB and UCC27211DRCR, the LTC7066RMSE#PBF uniquely combines 150V rating, ±10V ground shift tolerance, resistor-programmable dead time, and adaptive shoot-through protection-enabling reliable operation in automotive and telecom systems where bus voltage, noise, and safety margins are tightly constrained.
Availability
LTC7066RMSE#PBF is available at Aetrix Electronics and suitable for automotive power conversion, telecom infrastructure, and industrial motor control applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for LTC7066RMSE#PBF 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, industrial automation, and automotive markets.
The LTC7066RMSE#PBF belongs to Analog Devices' high-voltage power management product line, engineered specifically for robust gate driving in noisy, high-dV/dt half-bridge and full-bridge power stages used in automotive electrification and telecom energy systems.
FAQ
What is the maximum allowable voltage difference between SW or BGRTN and SGND for the LTC7066RMSE#PBF?
The LTC7066RMSE#PBF supports a voltage difference of −10V to +150V between SW and SGND, and between BGRTN and SGND. This ±10V negative tolerance enables operation in high-noise environments where ground bounce exceeds typical limits. The specification is validated per AEC-Q100 stress testing and applies across the full −40°C to +150°C junction temperature range.
How does the adaptive shoot-through protection in the LTC7066RMSE#PBF differ from standard logic-based dead time?
Unlike fixed or resistor-programmed dead time, the LTC7066RMSE#PBF's adaptive shoot-through protection monitors actual MOSFET gate-source voltage transitions in real time. It prevents the complementary MOSFET from turning on until the conducting device's VGS falls below its threshold-ensuring zero cross-conduction even with mismatched MOSFETs or varying gate charge. This hardware-level function operates independently of the DT pin setting.
Can the LTC7066RMSE#PBF drive both high-side and low-side MOSFETs with different gate threshold voltages?
Yes. The LTC7066RMSE#PBF provides independent 4V–14V floating supplies for BST–SW and BGVCC–BGRTN, allowing separate optimization of gate drive voltage for high-threshold (e.g., 4.5V) and logic-level (e.g., 1.8V) MOSFETs. Each driver channel maintains 0.8Ω pull-down / 1.5Ω pull-up strength across its specified supply range, ensuring consistent turn-on/turn-off performance regardless of VGS(th) mismatch.
What is the purpose of the FLT pin on the LTC7066RMSE#PBF, and how should it be interfaced?
The FLT pin on the LTC7066RMSE#PBF is an open-drain fault indicator that pulls low during VCC UVLO/OVLO, BST–SW or BGVCC–BGRTN UVLO, or thermal shutdown. It requires an external pull-up resistor (e.g., 51kΩ to VCC). After fault clearance, FLT releases high after a built-in 100µs delay to prevent chatter. This pin enables system-level fault logging and safe shutdown sequencing in automotive and telecom applications.
Is the LTC7066RMSE#PBF pin-compatible with other devices in the LTC706x family?
No. The LTC7066RMSE#PBF has a unique 12-lead MSOP pinout optimized for floating ground routing and thermal dissipation. While functional similarities exist with LTC7060/LTC7061 (e.g., shoot-through protection), pin assignments for DT, FLT, BST, and SW differ. Direct replacement requires PCB layout revision. Refer to the official LTC7066RMSE#PBF datasheet Rev. 0 for exact mechanical and electrical pin mapping.
LTC7066RMSE#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 12-TSSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- -
- Driven Configuration:
- Half-Bridge
- Channel Type:
- -
- Number of Drivers:
- -
- Gate Type:
- -
- Voltage - Supply:
- 5V ~ 14V
- Logic Voltage - VIL, VIH:
- -
- Current - Peak Output (Source, Sink):
- -
- Input Type:
- -
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- -
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-MSOP-EP
LTC7066RMSE#PBF FAQ
1.How can I place an order for LTC7066RMSE#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC7066RMSE#PBF 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 LTC7066RMSE#PBF reliable?
The price and inventory of LTC7066RMSE#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC7066RMSE#PBF is usually 5 days.
3.What payment methods are accepted for LTC7066RMSE#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC7066RMSE#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC7066RMSE#PBF?
LTC7066RMSE#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC7066RMSE#PBF 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 LTC7066RMSE#PBF?
For technical support, including LTC7066RMSE#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC7066RMSE#PBF requirements.
6.How does Aetrix verify that LTC7066RMSE#PBF is sourced from the original manufacturer or authorized distributors?
All LTC7066RMSE#PBF 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 LTC7066RMSE#PBF meets industry standards.
7.What is the process for return or replacement of LTC7066RMSE#PBF?
All LTC7066RMSE#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC7066RMSE#PBF, 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 LTC7066RMSE#PBF part is unused and in its original packaging.
Return procedure for LTC7066RMSE#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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