My Inquiry
My Account
Analog Devices Inc. LTC7066RMSE#WTRPBF
- Part No.:
- LTC7066RMSE#WTRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Gate Drivers
- Package:
- 12-TSSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC7066RMSE#WTRPBF.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 12MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,135
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC7066RMSE#WTRPBF from Analog Devices is a 150V half-bridge gate driver IC for dual N-channel MOSFETs in high-noise industrial and automotive power converters. It features independent floating grounds (SW and BGRTN), 0.8Ω pull-down / 1.5Ω pull-up drivers, adjustable dead time via external resistor, adaptive shoot-through protection, and AEC-Q100 qualification. It enables robust 140V input half-bridge operation with ±10V ground difference tolerance.
For engineers reviewing the LTC7066RMSE#WTRPBF datasheet, LTC7066RMSE#WTRPBF pinout, LTC7066RMSE#WTRPBF application, or LTC7066RMSE#WTRPBF equivalent, key selection criteria include floating supply UVLO thresholds (3.4V on BST-SW and BGVCC-BGRTN), propagation delay tuning range (31–250 ns), thermal shutdown at ~180°C, and MSOP-12 package with exposed SGND pad for thermal management.
Technical Context
The LTC7066RMSE#WTRPBF implements symmetric dual-level-shifted drivers with independent UVLO monitoring on VCC (4.3V falling), BST-SW (3.4V falling), and BGVCC-BGRTN (3.4V falling), each with 0.3V hysteresis. Its adaptive shoot-through logic prevents simultaneous TG/BG high states by enforcing turn-off-before-turn-on sequencing based on actual gate-source voltage conditions.
Dead time is programmable from 31 ns to 250 ns using a single resistor on DT pin (0–100 kΩ), with linear relationship: Dead Time = RDT × 0.44 ns/kΩ + 32 ns. Input logic uses fixed TTL/CMOS thresholds (VIH = 1.75 V, VIL = 0.5 V) with internal 1 MΩ pull-downs on TOPIN/BOTIN, enabling safe default-low operation during controller initialization or fault.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VMAX Rating | 150V absolute max on BST and BGVCC pins - supports 140V DC input bus without derating. |
| Driver Strength | 0.8Ω pull-down / 1.5Ω pull-up - delivers ~6A peak sink / ~3A peak source at 10V supply for fast MOSFET switching. |
| Dead Time Range | 31 ns to 250 ns - set by RDT (0–100 kΩ); enables precise control of cross-conduction margin in high-dV/dt environments. |
| UVLO Thresholds | VCC: 4.3V (falling), BST-SW & BGVCC-BGRTN: 3.4V (falling) - ensures gate drive remains active only when floating supplies are sufficient. |
| Operating Temp | −40°C to +150°C junction - qualified per AEC-Q100 Grade 0, suitable for under-hood automotive and industrial motor drives. |
| Rise/Fall Time | 14–18 ns (10–90%, CLOAD = 3.3 nF) - minimizes transition losses in high-frequency (>500 kHz) synchronous buck or LLC topologies. |
| Fault Output | Open-drain FLT pin with 60 Ω pull-down - asserts low within 100 µs on VCC UVLO/OVLO, floating supply UVLO, or thermal shutdown. |
Pinout & Package
Package: 12-lead plastic MSOP with exposed thermal pad (Pin 13 = SGND), θJA = 40°C/W. Requires soldering of exposed pad to PCB ground for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TOPIN | High-side logic input | TTL/CMOS-compatible; internal 1 MΩ pull-down ensures TG defaults low if un-driven. |
| BOTIN | Low-side logic input | Same threshold and pull-down as TOPIN; independent control enables DCM or phase-shifted operation. |
| FLT | Open-drain fault indicator | Pulled low on VCC UVLO/OVLO, BST-SW or BGVCC-BGRTN UVLO, or thermal shutdown (~180°C). |
| DT | Dead-time programming node | Resistor to SGND sets symmetrical BG→TG and TG→BG propagation delay (31–250 ns). |
| VCC | IC bias supply | 5–14V input powering internal logic; generates 4.5V rail; independent of VIN and floating supplies. |
| BGVCC | Bottom gate driver supply | 4–14V referenced to BGRTN; powers BG output stage; requires local bypass capacitor to BGRTN. |
| BGRTN | Bottom driver return | Kelvin connection point to bottom MOSFET source; tolerates −10V to +150V vs SGND. |
| BG | Bottom gate driver output | Swings between BGVCC and BGRTN; 0.8Ω/1.5Ω drive strength; sinks 100 mA @ 80 mV drop. |
| BST | Top gate driver supply | 4–14V referenced to SW; powers TG output; requires local bootstrap capacitor to SW. |
| SW | Top driver return | Kelvin connection to top MOSFET source; tolerates −10V to +150V vs SGND; critical for noise immunity. |
| TG | Top gate driver output | Swings between BST and SW; matched drive strength to BG; sources 100 mA @ 150 mV drop. |
| SGND | Chip ground / thermal pad | Reference for VCC, DT, FLT, TOPIN, BOTIN; exposed pad must be soldered to PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Symmetric floating architecture | Independent SW and BGRTN references enable ±10V ground offset tolerance - eliminates need for isolated supplies in noisy half-bridge layouts. |
| Adaptive shoot-through protection | Monitors actual MOSFET gate-source voltage to enforce turn-off-before-turn-on - prevents cross-conduction even with mismatched FETs or layout parasitics. |
| Adjustable dead time | Single-resistor programming (RDT) sets identical delays for both channel transitions - simplifies timing validation across temperature and voltage. |
| AEC-Q100 Grade 0 qualification | Rated for −40°C to +150°C operation with full automotive reliability testing - approved for engine control, OBC, and traction inverter auxiliary drives. |
| Robust fault reporting | Open-drain FLT pin combines VCC, BST-SW, BGVCC-BGRTN UVLO, and thermal shutdown into one diagnostic signal - reduces system monitoring complexity. |
Applications
| Automotive On-Board Charger (OBC) | Industrial Motor Drive Inverter |
|---|---|
|
Use Scenario: Driving high-side/low-side N-MOSFETs in bidirectional AC/DC and DC/DC stages of 800V-class OBCs. IC Role / Device Role / Timing Role: Half-bridge gate driver with independent floating grounds to isolate primary-side switching noise from control domain. Use Value: ±10V ground difference tolerance and 150V rating allow direct integration into 1000V DC-link designs without level-shifter isolation. |
Use Scenario: Controlling IGBTs or SiC MOSFETs in three-phase inverter legs for HVAC compressors and servo drives. IC Role / Device Role / Timing Role: High-noise-immunity gate driver ensuring reliable commutation under EMI-heavy factory floor conditions. Use Value: Adaptive shoot-through logic prevents destructive shoot-through during rapid load transients or controller timing jitter. |
| Telecom 48V Intermediate Bus Converter | EV Auxiliary Power Module (APM) |
|
Use Scenario: Enabling high-efficiency, high-density 48V-to-12V/5V synchronous buck converters in 5G base station power systems. IC Role / Device Role / Timing Role: Fast-switching gate driver supporting >1 MHz operation with minimal dead-time penalty. Use Value: 14–18 ns rise/fall times and 31 ns minimum dead time reduce conduction loss while maintaining safety margin. |
Use Scenario: Driving dual N-MOSFETs in 12V/48V DC/DC converters supplying infotainment, ADAS, and lighting subsystems. IC Role / Device Role / Timing Role: AEC-Q100-qualified driver providing fault signaling (FLT) for functional safety compliance (ISO 26262 ASIL-B). Use Value: Integrated VCC/BST/BGVCC UVLO and thermal shutdown enable single-point fault detection without external supervisors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage half-bridge gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5109BMM/NOPB | Fixed 120 ns dead time; no adjustable DT pin; lower 100V max rating; no adaptive shoot-through; no floating supply UVLO on BST/BGVCC. | Suitable for cost-sensitive 60–100V industrial SMPS where timing precision and fault coverage are secondary. | Select LTC7066RMSE#WTRPBF when ±10V ground offset, 140V bus support, or programmable dead time is required. |
| UCC27211DRCR | 120V max rating; no independent floating supply UVLO; no DT pin; 1.8Ω/0.9Ω drive; no AEC-Q100 qualification. | Targeted at general-purpose 48–100V server/industrial half-bridges with standard thermal requirements. | Choose LTC7066RMSE#WTRPBF for automotive-grade reliability, higher voltage margin, or enhanced noise immunity in harsh environments. |
Compared with LM5109BMM/NOPB and UCC27211DRCR, the LTC7066RMSE#WTRPBF provides superior high-voltage robustness (150V rating), true floating-supply UVLO monitoring, and field-tunable dead time - making it uniquely suited for AEC-Q100-compliant 800V EV power electronics and telecom infrastructure requiring ±10V ground tolerance.
Availability
LTC7066RMSE#WTRPBF is available at Aetrix Electronics and suitable for automotive on-board chargers, industrial motor drives, and telecom intermediate bus converters requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for LTC7066RMSE#WTRPBF 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 industrial, automotive, communications, and healthcare markets.
The LTC7066RMSE#WTRPBF belongs to Analog Devices' high-voltage gate driver product line, designed specifically for noise-immune, high-reliability half-bridge control in automotive traction inverters, EV charging systems, and industrial power conversion.
FAQ
What is the maximum input voltage the LTC7066RMSE#WTRPBF can handle on its BST and BGVCC pins?
The LTC7066RMSE#WTRPBF has an absolute maximum rating of 150V on both BST and BGVCC pins relative to SW and BGRTN respectively. Its specified maximum operating input voltage is 140V, enabling use in 800V-class DC-link systems with appropriate derating. This rating is independent of VCC supply voltage and applies across the full −40°C to +150°C junction temperature range.
How does the adaptive shoot-through protection in the LTC7066RMSE#WTRPBF differ from standard fixed dead-time schemes?
Unlike fixed dead-time drivers, the LTC7066RMSE#WTRPBF monitors actual gate-source voltage conditions of the external MOSFETs to enforce turn-off-before-turn-on sequencing. This adaptive logic prevents shoot-through even with device mismatches, layout asymmetries, or transient-induced false triggering - eliminating reliance solely on conservative timing margins.
Can the LTC7066RMSE#WTRPBF operate with different supply voltages on BST-SW and BGVCC-BGRTN?
Yes - the LTC7066RMSE#WTRPBF supports independent floating supplies: BST-SW and BGVCC-BGRTN each operate over 4V to 14V and are monitored separately for UVLO (3.4V falling). This allows asymmetric gate drive configurations, such as 10V high-side and 5V low-side, or compatibility with logic-level and standard-threshold MOSFETs simultaneously.
What is the purpose of the exposed pad (Pin 13) on the LTC7066RMSE#WTRPBF MSOP package?
The exposed pad (Pin 13) of the LTC7066RMSE#WTRPBF is electrically and thermally connected to SGND. It must be soldered to a PCB ground plane to achieve the specified θJA = 40°C/W thermal resistance and ensure reliable operation at full load. Leaving it unconnected degrades thermal performance and may cause premature thermal shutdown.
Does the LTC7066RMSE#WTRPBF support bootstrapped high-side drive, and what capacitor value is recommended?
Yes - the LTC7066RMSE#WTRPBF fully supports bootstrapped high-side drive via the BST-SW supply. A 0.1 µF ceramic capacitor placed directly between BST and SW is recommended for most applications. For paralleled MOSFETs, size CB > 10 × total QG of driven devices to maintain gate drive stability across switching cycles.
LTC7066RMSE#WTRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 12-TSSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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#WTRPBF FAQ
1.How can I place an order for LTC7066RMSE#WTRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC7066RMSE#WTRPBF 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#WTRPBF reliable?
The price and inventory of LTC7066RMSE#WTRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC7066RMSE#WTRPBF is usually 5 days.
3.What payment methods are accepted for LTC7066RMSE#WTRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC7066RMSE#WTRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC7066RMSE#WTRPBF?
LTC7066RMSE#WTRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC7066RMSE#WTRPBF 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#WTRPBF?
For technical support, including LTC7066RMSE#WTRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC7066RMSE#WTRPBF requirements.
6.How does Aetrix verify that LTC7066RMSE#WTRPBF is sourced from the original manufacturer or authorized distributors?
All LTC7066RMSE#WTRPBF 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#WTRPBF meets industry standards.
7.What is the process for return or replacement of LTC7066RMSE#WTRPBF?
All LTC7066RMSE#WTRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC7066RMSE#WTRPBF, 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#WTRPBF part is unused and in its original packaging.
Return procedure for LTC7066RMSE#WTRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC7066RMSE#WTRPBF Tags
-
ZXGD3009E6TA
Diodes Incorporated
-
1EDN7512BXTSA1
Infineon Technologies
-
UCC27517DBVR
Texas Instruments
-
MCP1416T-E/OT
Microchip Technology
-
MCP1402T-E/OT
Microchip Technology
-
MCP1415T-E/OT
Microchip Technology
-
MCP1401T-E/OT
Microchip Technology
-
IX4428NTR
Littelfuse Inc.
-
IRS2005STRPBF
Infineon Technologies
-
IRS2008STRPBF
Infineon Technologies
-
IX4310TTR
Littelfuse Inc.
-
2EDN7524RXTMA1
Infineon Technologies
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
