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Analog Devices Inc. LTC7003EMSE#PBF
- Part No.:
- LTC7003EMSE#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Gate Drivers
- Package:
- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC7003EMSE#PBF.pdf
- Description:
- IC GATE DRVR HIGH-SIDE 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,888
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Product details
Overview
LTC7003EMSE#PBF from Analog Devices is a high-side N-channel MOSFET gate driver IC designed for protected static and switching applications up to 60V input. It integrates an internal charge pump for 100% duty cycle operation, delivers 2.2Ω pull-up / 1Ω pull-down drive strength, achieves 35ns propagation delay, and provides adjustable overcurrent protection with current monitor output. It serves as a fast, fault-protected high-side switch controller in industrial power distribution systems.
For engineers reviewing the LTC7003EMSE#PBF datasheet, LTC7003EMSE#PBF pinout, LTC7003EMSE#PBF application, or LTC7003EMSE#PBF equivalent, key selection considerations include its 60V VIN rating, MSOP-16 thermal performance (θJA = 45°C/W), adjustable ΔVTH current trip (20–75mV), open-drain FAULT flag behavior, and compatibility with external high-side NMOS switches requiring fast turn-on/turn-off under overcurrent conditions.
Technical Context
The LTC7003EMSE#PBF implements a level-shifted gate driver architecture with integrated charge pump to sustain BST-TS voltage at 12V across TS voltages up to 60V, enabling continuous conduction of high-side NMOS. Its current sense comparator monitors ΔVSNS across an external shunt with programmable threshold via ISET pin (20–75mV), triggering fault shutdown after timer capacitor–defined delay.
Protection logic includes independent undervoltage lockouts on RUN (1.21V enable), VCCUV (adjustable 3.5–10.5V), OVLO (1.21V trip), and BST-TS (3.1V UVLO), plus thermal shutdown at ~180°C. The IMON pin provides ground-referenced 20× scaled current sense voltage (0–1.5V range) while TGUP/TGDN drive external MOSFET gates with CMOS-compatible timing and low-impedance pull-up/pull-down paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 3.5V to 60V - supports wide-input industrial and automotive supply rails without external regulation. |
| Gate Drive Strength | 2.2Ω pull-up / 1Ω pull-down - enables fast switching of large gate capacitances (e.g., 1nF load in <35ns). |
| Propagation Delay | 35ns (typ.) - ensures precise timing control in high-frequency or safety-critical turn-on/turn-off sequences. |
| Current Sense Threshold | 20mV to 75mV (adjustable via ISET) - allows optimization of sense resistor value and conduction loss trade-off. |
| Charge Pump Output | Regulated 12V BST-TS - sustains 100% duty cycle operation for high-side NMOS without external bootstrap diode/capacitor complexity. |
| Fault Response | Open-drain FAULT pin + TIMER capacitor–programmed retry - provides system-level fault signaling and automatic recovery after cooldown. |
| Operating Temp Range | –40°C to +125°C (E-grade) - qualified for extended industrial environments with validated thermal derating. |
Pinout & Package
The LTC7003EMSE#PBF is housed in a thermally enhanced 16-lead plastic MSOP package (MSE) with exposed pad (Pin 17) soldered to PCB for optimal thermal dissipation (θJC = 10°C/W). Package dimensions comply with JEDEC MO-187AA.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RUN (1) | Enable/Shutdown Control | CMOS-compatible input; ≥1.21V enables operation, <0.7V reduces quiescent current to ~1µA. |
| VIN (2) | Main Supply Input | Primary power source (3.5–60V); requires ≥0.1µF bypass to GND for stability. |
| VCC (3) | Internal LDO Output | 10V regulated supply for drivers/logic; can be overdriven externally but must not exceed VIN. |
| VCCUV (4) | VCC Undervoltage Lockout Set | Resistor-to-GND sets VCC UVLO threshold (3.5–10.5V ×7 scaling) to prevent weak gate drive. |
| FAULT (5) | Open-Drain Fault Flag | Pulls low when overcurrent detected; remains low until fault cleared and cooldown complete. |
| TIMER (6) | Fault Timing Capacitor Node | External CT to GND programs fault warning, shutdown, and auto-retry intervals. |
| INP (7) | CMOS Input Signal | Ground-referenced digital control; internal 1MΩ pull-down holds TGDN low during startup. |
| OVLO (8) | Input Overvoltage Lockout | Resistor divider sets VIN overvoltage trip (1.21V threshold); triggers immediate fault if exceeded. |
| ISET (9) | Current Trip Threshold Set | Resistor-to-GND programs ΔVTH (20–75mV); open = 30mV default for low-loss sensing. |
| IMON (10) | Current Monitor Output | Ground-referenced 20× scaled SNS+–SNS– voltage (0–1.5V range); 100kΩ output impedance. |
| TGDN (11) | High-Side Gate Pull-Down | Low-impedance N-MOS path to TS; directly connects to MOSFET gate for fastest turn-off. |
| TGUP (12) | High-Side Gate Pull-Up | Level-shifted path to BST; ties to TGDN for max speed or adds series R for controlled slew rate. |
| TS (13) | Top-Side Source Reference | High-side return node; connects to MOSFET source; may be tied to GND in low-side configurations. |
| BST (14) | Bootstrap Supply | Charge pump output node; requires ≥0.1µF capacitor to TS for 12V gate drive swing. |
| SNS– (15) | Current Sense Negative Input | Kelvin connection point for shunt resistor; 100Ω series resistor required for noise immunity. |
| SNS+ (16) | Current Sense Positive Input | Kelvin connection point for shunt resistor; placed at MOSFET drain side for accurate ΔVSNS. |
| GND (17) | Power Ground / Thermal Pad | Exposed pad must be soldered to PCB plane for rated electrical performance and thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| 100% Duty Cycle Support | Integrated charge pump maintains BST-TS at 12V regardless of TS voltage (up to 60V), eliminating need for external bootstrap diodes. |
| Adjustable Overcurrent Protection | ISET pin allows precise setting of current trip threshold (20–75mV), reducing power loss in low-RDS(on) MOSFETs. |
| Fast Turn-On/Turn-Off Capability | 35ns propagation delay + 2.2Ω/1Ω drivers enable sub-100ns transitions on 1nF loads, critical for high-frequency switching. |
| Comprehensive Voltage Monitoring | Dedicated lockouts on RUN, VCCUV, OVLO, and BST-TS provide layered protection against supply faults before MOSFET stress occurs. |
| Integrated Current Monitoring | IMON pin delivers ground-referenced 20× amplified sense voltage (0–1.5V), simplifying system-level current telemetry without external op-amps. |
Applications
| Industrial Power Distribution | Automotive Load Switching |
|---|---|
Use Scenario: Remote-controlled 48V DC bus protection in factory automation cabinets with hot-swap capability. IC Role / Device Role / Timing Role: High-side NMOS gate driver enforcing fast, fault-protected switching with current limiting and retry logic. Use Value: Prevents catastrophic MOSFET failure during short-circuit events while maintaining system uptime via automatic cooldown/restart. | Use Scenario: Engine control unit (ECU) power rail sequencing for fuel injector drivers with diagnostic feedback. IC Role / Device Role / Timing Role: AEC-Q100 qualified high-side switch controller providing overcurrent detection and FAULT flag signaling to microcontroller. Use Value: Enables real-time current monitoring (via IMON) and safe shutdown within <100µs of overcurrent detection per ISO 16750-2. |
| Electronic Circuit Breaker | High-Frequency DC-DC Pre-Regulator |
Use Scenario: Programmable current-limited power delivery for FPGA or ASIC core rails in telecom infrastructure. IC Role / Device Role / Timing Role: Static switch driver with adjustable trip threshold (ISET) and precise timer-based fault response. Use Value: Replaces mechanical breakers with repeatable, temperature-stable trip points (±5mV over –40°C to 125°C) and no wear-out mechanism. | Use Scenario: High-side synchronous rectifier gate driver in isolated flyback or forward converter primary side. IC Role / Device Role / Timing Role: Fast-turning high-side NMOS driver supporting >500kHz switching with minimal dead-time penalty. Use Value: Reduces conduction losses via 12V BST-TS gate drive and eliminates external bootstrap components, shrinking BOM count by 3 parts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side NMOS gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5113SD/NOPB | Requires external bootstrap diode; no integrated charge pump; fixed 1.5A peak drive; no current monitor output. | Lacks adjustable overcurrent protection and IMON telemetry; suited for simpler, cost-sensitive designs without diagnostics. | Select LM5113SD/NOPB only when BST-TS regulation and current monitoring are unnecessary and external diode placement is acceptable. |
| MAX14914ATP+ | Integrated 4A high-side switch (not driver-only); includes built-in 0.3Ω MOSFET; no external gate drive flexibility; SPI-configurable protection. | Replaces discrete MOSFET + driver combo; limited to ≤40V VIN; lacks analog IMON output and BST-TS scalability. | Choose MAX14914ATP+ for space-constrained PLC I/O modules where integrated FET suffices and SPI configuration is preferred over analog trimming. |
Compared with LM5113SD/NOPB and MAX14914ATP+, the LTC7003EMSE#PBF uniquely combines 60V operation, integrated charge pump for 100% duty cycle, analog-adjustable current sensing, and ground-referenced IMON output-making it optimal for high-reliability industrial and automotive systems requiring both protection granularity and diagnostic visibility.
Availability
LTC7003EMSE#PBF is available at Aetrix Electronics and suitable for industrial power distribution, automotive load switching, and electronic circuit breaker applications requiring stable component supply, long-term lifecycle support, and guaranteed AEC-Q100 compliance for E-grade units.
Supply support for LTC7003EMSE#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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC7003 product line delivers robust high-side NMOS gate drivers with integrated protection and telemetry for demanding power-switching applications where reliability, precision current monitoring, and wide VIN range are essential.
FAQ
What is the maximum allowable voltage on the TS pin of the LTC7003EMSE#PBF?
The TS pin of the LTC7003EMSE#PBF supports voltages from –6V to +65V, enabling direct connection to high-side MOSFET sources operating up to 60V. This rating ensures safe operation in 48V and 60V industrial and automotive systems where TS may float significantly above ground potential. Exceeding 65V risks permanent damage per Absolute Maximum Ratings.
How does the LTC7003EMSE#PBF achieve 100% duty cycle operation without an external bootstrap diode?
The LTC7003EMSE#PBF achieves 100% duty cycle using an internal charge pump that regulates the BST-TS voltage to 12V, independent of TS voltage (up to 60V). Unlike traditional bootstrap circuits requiring diode recharge during low-side conduction, this charge pump continuously replenishes BST energy, allowing indefinite high-side NMOS conduction without external diodes or timing constraints.
Can the LTC7003EMSE#PBF drive a MOSFET with gate charge exceeding 100nC?
Yes, the LTC7003EMSE#PBF can drive MOSFETs with gate charge exceeding 100nC due to its 2.2Ω pull-up and 1Ω pull-down output impedances, which deliver high peak current into large capacitive loads. Performance data shows 35ns propagation delay with 1nF load; for 100nC devices, rise/fall times scale linearly with Qg, remaining practical for most industrial switching frequencies below 500kHz.
What is the function of the IMON pin on the LTC7003EMSE#PBF and how is it calibrated?
The IMON pin on the LTC7003EMSE#PBF provides a ground-referenced voltage equal to 20× the voltage across the external sense resistor (SNS+–SNS–), ranging from 0V to 1.5V. It is calibrated to ±5% accuracy over temperature and features 100kΩ output impedance. When INP is low, IMON is pulled to ground via internal 100kΩ resistor, ensuring defined idle state.
Does the LTC7003EMSE#PBF require external components for basic overcurrent protection functionality?
Yes, the LTC7003EMSE#PBF requires three external components for functional overcurrent protection: a sense resistor between SNS+ and SNS–, a timing capacitor (CT) from TIMER to GND, and optionally a resistor from ISET to GND to set the trip threshold. These components define the current limit, fault timing, and retry behavior-no additional ICs or complex circuitry are needed for full protection implementation.
LTC7003EMSE#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- High-Side
- Channel Type:
- Single
- Number of Drivers:
- 1
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 3.5V ~ 15V
- Logic Voltage - VIL, VIH:
- -
- Current - Peak Output (Source, Sink):
- -
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- 60 V
- Rise / Fall Time (Typ):
- 90ns, 40ns
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-MSOP-EP
LTC7003EMSE#PBF FAQ
1.How can I place an order for LTC7003EMSE#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC7003EMSE#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 LTC7003EMSE#PBF reliable?
The price and inventory of LTC7003EMSE#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC7003EMSE#PBF is usually 5 days.
3.What payment methods are accepted for LTC7003EMSE#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC7003EMSE#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC7003EMSE#PBF?
LTC7003EMSE#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC7003EMSE#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 LTC7003EMSE#PBF?
For technical support, including LTC7003EMSE#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC7003EMSE#PBF requirements.
6.How does Aetrix verify that LTC7003EMSE#PBF is sourced from the original manufacturer or authorized distributors?
All LTC7003EMSE#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 LTC7003EMSE#PBF meets industry standards.
7.What is the process for return or replacement of LTC7003EMSE#PBF?
All LTC7003EMSE#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC7003EMSE#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 LTC7003EMSE#PBF part is unused and in its original packaging.
Return procedure for LTC7003EMSE#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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