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Analog Devices Inc. LTC7003HMSE#PBF
- Part No.:
- LTC7003HMSE#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Gate Drivers
- Package:
- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC7003HMSE#PBF.pdf
- Description:
- IC GATE DRVR HIGH-SIDE 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:8,184
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Product details
Overview
LTC7003HMSE#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 enabling 100% duty cycle operation, features 1Ω pull-down / 2.2Ω pull-up gate drive strength, 35ns propagation delay, and adjustable overcurrent protection with current monitor output. It serves as a fast, fault-protected high-side switch controller in industrial power distribution and automotive load management.
For engineers reviewing the LTC7003HMSE#PBF datasheet, LTC7003HMSE#PBF pinout, LTC7003HMSE#PBF application, or LTC7003HMSE#PBF equivalent, key selection considerations include its –40°C to 150°C junction temperature rating, MSOP-16 thermally enhanced package with exposed pad, adjustable current trip threshold (20–75 mV ΔVTH), open-drain FAULT flag, and bootstrap supply (BST–TS) regulation to 12 V.
Technical Context
The LTC7003HMSE#PBF implements a level-shifted, high-voltage gate driver architecture with integrated charge pump to sustain 100% duty cycle on high-side NMOS switches. Its internal LDO generates VCC from VIN (3.5–60 V), while BST–TS is regulated to 12 V for gate drive headroom.
Overcurrent protection uses a precision current-sense comparator monitoring ΔVSNS across an external sense resistor, with trip threshold set via ISET pin (20–75 mV). Fault timing, automatic retry, and cooldown are controlled by an external capacitor on TIMER pin, and IMON provides 20× ground-referenced current monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 3.5 V to 60 V - supports wide-input industrial and automotive battery systems without external regulators. |
| Gate Drive Strength | 1 Ω pull-down / 2.2 Ω pull-up - enables fast turn-off and robust drive into large gate capacitances (e.g., >1 nF). |
| Propagation Delay | 35 ns - ensures precise timing control in high-frequency switching or critical safety-cutoff applications. |
| Current Sense Threshold | Adjustable 20–75 mV ΔVTH - allows optimization of sense resistor value and conduction loss trade-offs. |
| Operating Junction Temp | –40°C to +150°C - qualified for under-hood automotive and high-ambient industrial environments. |
| Charge Pump Output | Regulated 12 V BST–TS - sustains full gate enhancement for 100% duty cycle NMOS operation at high VIN. |
| Shutdown Current | 1 µA - enables ultra-low-power standby in always-on systems such as battery-backed controllers. |
Pinout & Package
The LTC7003HMSE#PBF is housed in a thermally enhanced 16-lead plastic MSOP package (MSE) with exposed pad (Pin 17 = GND), requiring soldering of the pad for rated thermal performance (θJA = 45°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RUN (1) | Enable/Shutdown Control | CMOS-compatible input; <0.7 V disables all circuitry (1 µA shutdown); >1.21 V enables full operation. |
| VIN (2) | Main Supply Input | Primary power source (3.5–60 V); powers internal LDO and charge pump; requires ≥0.1 µF bypass to GND. |
| VCC (3) | Internal LDO Output | 10 V regulated output (or VIN in dropout); powers gate drivers and logic; must not exceed VIN. |
| VCCUV (4) | VCC Undervoltage Lockout Set | Resistor-to-GND sets VCC UVLO threshold (3.5–10.5 V); open = 7.0 V UVLO. |
| FAULT (5) | Open-Drain Fault Flag | Pulls low during overcurrent fault; typical 200 Ω pull-down; remains asserted until cooldown and reset. |
| TIMER (6) | Fault Timing Capacitor Node | External capacitor sets fault warning, turn-off, and auto-retry timing; >3.5 V enables fast-turn-off mode. |
| INP (7) | Logic Input Signal | CMOS-compatible (VIH = 2.0 V, VIL = 1.6 V); internal 1 MΩ pull-down holds TGDN low at startup. |
| OVLO (8) | Input Overvoltage Lockout | Resistor divider sets VIN OVLO threshold; >1.21 V forces TGDN to TS and asserts FAULT. |
| ISET (9) | Current Trip Threshold Set | Resistor-to-GND programs ΔVTH from 20–75 mV; open = 30 mV default for low-loss sensing. |
| IMON (10) | Current Monitor Output | Ground-referenced voltage = 20 × ΔVSNS (0–1.5 V range); 100 kΩ output impedance. |
| TGDN (11) | High-Side Gate Pull-Down | Low-impedance N-MOS output pulling to TS; connects directly to MOSFET gate for fastest turn-off. |
| TGUP (12) | High-Side Gate Pull-Up | Pulls to BST; tied to TGDN for max speed or series-resistor limited for controlled slew rate. |
| TS (13) | Top-Side Source Reference | High-side source node (up to 60 V above GND); also serves as return for SNS– and BST capacitor. |
| BST (14) | Bootstrap Supply | Charge pump output; 0.1 µF capacitor to TS required; swing = 12 V to (VIN + 12 V). |
| SNS– (15) | Current Sense Negative Input | Low-side connection of sense resistor; Kelvin-connected via ≥100 Ω resistor for noise immunity. |
| SNS+ (16) | Current Sense Positive Input | High-side connection of sense resistor; Kelvin-connected directly for accurate ΔVSNS measurement. |
| GND (17) | Thermal & Electrical Ground | Exposed pad; must be soldered to PCB plane for thermal dissipation and electrical reference integrity. |
Key Features
| Feature | Design Value |
|---|---|
| 100% Duty Cycle Support | Integrated charge pump maintains BST–TS at 12 V regardless of VIN or duty cycle - eliminates need for external bootstrap diode/capacitor complexity. |
| Adjustable Overcurrent Protection | ISET pin sets trip threshold from 20–75 mV ΔVTH, enabling precise current limiting with minimal sense resistor power loss. |
| Ground-Referenced Current Monitoring | IMON outputs 20× scaled, GND-referenced voltage (0–1.5 V) - simplifies ADC interfacing and system-level current diagnostics. |
| Robust High-Voltage Interface | TS, SNS+, SNS– rated to 65 V absolute max; RUN, INP tolerate –6 V to +15 V - withstands inductive ringing in harsh EMI environments. |
| Automotive-Qualified Thermal Rating | Junction temperature range –40°C to +150°C with AEC-Q100 qualification - suitable for engine compartment and traction power control. |
Applications
| Industrial Power Distribution | Automotive Load Management |
|---|---|
|
Use Scenario: Remote-controlled 48 V DC bus switching in factory automation cabinets with overcurrent fault logging. IC Role / Device Role: High-side NMOS gate driver enforcing safe power delivery, with IMON feedback to PLC controller and FAULT signal triggering SCADA alerts. Use Value: Enables solid-state replacement of electromechanical relays with 35 ns response, eliminating contact wear and bounce while supporting 150°C ambient operation. |
Use Scenario: Electronic valve control for 12 V/24 V fuel or coolant solenoids in diesel engine management systems. IC Role / Device Role: Protected high-side switch with adjustable current limit and automatic retry - prevents coil burnout during stall conditions. Use Value: Delivers AEC-Q100-compliant reliability, 1 µA shutdown current for battery preservation, and integrated OVLO/UVLO for robust cold-cranking support. |
| High-Frequency DC-DC Gate Driving | Electronic Circuit Breaker |
|
Use Scenario: Gate drive for high-side synchronous rectifier in isolated 60 V input flyback converter operating at 500 kHz. IC Role / Device Role: Fast, low-RDS(ON) gate driver with 12 V BST–TS regulation ensuring full NMOS enhancement at high duty cycles. Use Value: Reduces MOSFET conduction loss via strong 1 Ω pull-down and 2.2 Ω pull-up, while charge pump eliminates bootstrap diode losses and leakage. |
Use Scenario: Resettable overcurrent protection for 3 A continuous industrial sensor power rail with fault latching and remote status indication. IC Role / Device Role: Self-contained electronic fuse with programmable trip threshold, timer-based cooldown, and open-drain FAULT signaling. Use Value: Replaces discrete fuse + comparator + latch circuits; provides precise 20–75 mV trip setting, automatic retry, and IMON-based health monitoring. |
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 |
|---|---|---|---|
| LM5060MMX/NOPB | Lower VIN max (65 V vs 60 V), no integrated charge pump (requires external bootstrap diode), fixed 50 mV current threshold. | Lacks 100% duty cycle support and adjustable trip; suited for simpler, cost-sensitive 12–48 V systems without extended on-time requirements. | Choose LM5060MMX/NOPB when bootstrap diode overhead is acceptable and precise current threshold adjustment is unnecessary. |
| TPS27081AQPWPRQ1 | Integrated high-side switch (not driver-only), lower voltage rating (40 V), no current monitor output, fixed 1.5 A current limit. | Monolithic load switch rather than gate driver - no external MOSFET flexibility; lacks IMON, TIMER, or BST regulation capabilities. | Choose TPS27081AQPWPRQ1 only for compact, fixed-current, low-voltage (<40 V) load switching where external FET optimization is not required. |
Compared with LM5060MMX/NOPB and TPS27081AQPWPRQ1, the LTC7003HMSE#PBF uniquely combines 100% duty cycle capability, ground-referenced current monitoring (IMON), fully adjustable overcurrent threshold (20–75 mV), and AEC-Q100 qualification - making it the only option among the three suitable for high-reliability, high-voltage, high-duty-cycle automotive and industrial gate driving.
Availability
LTC7003HMSE#PBF is available at Aetrix Electronics and suitable for industrial power distribution, automotive load management, high-frequency DC-DC gate driving, and electronic circuit breaker applications requiring stable component supply and long-term lifecycle assurance.
Supply support for LTC7003HMSE#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 LTC7003HMSE#PBF belongs to Analog Devices' high-voltage power management IC product line, engineered specifically for robust, protected high-side NMOS switching in demanding automotive and industrial environments where reliability, thermal resilience, and precise current control are critical.
FAQ
What is the maximum operating junction temperature for the LTC7003HMSE#PBF?
The LTC7003HMSE#PBF is rated for a maximum operating junction temperature of +150°C and is qualified per AEC-Q100 for automotive use. This rating is explicitly specified for the H-grade variant in the Order Information table and confirmed in Absolute Maximum Ratings (Note 2). The exposed pad (Pin 17) must be soldered to a thermal pad on the PCB to achieve the specified θJA = 45°C/W and maintain reliable operation at this temperature.
How does the LTC7003HMSE#PBF achieve 100% duty cycle operation?
The LTC7003HMSE#PBF achieves 100% duty cycle operation using an internal charge pump that regulates the BST–TS voltage to 12 V, independent of input voltage or on-time duration. Unlike bootstrap circuits reliant on switching transitions, this charge pump continuously replenishes gate drive energy, allowing the external high-side NMOS to remain fully enhanced indefinitely - a capability confirmed in the Features list and Operation section.
Can the current trip threshold of the LTC7003HMSE#PBF be adjusted, and how?
Yes, the current trip threshold (ΔVTH) of the LTC7003HMSE#PBF is adjustable from 20 mV to 75 mV via the ISET pin. Connecting a resistor from ISET to GND sets ΔVTH = VISET/20, where VISET is clamped between 0.4 V and 1.5 V. Leaving ISET open defaults to 30 mV, as documented in Pin Functions and Electrical Characteristics (ΔVTH row).
What is the purpose of the IMON pin on the LTC7003HMSE#PBF?
The IMON pin on the LTC7003HMSE#PBF provides a ground-referenced analog output voltage equal to 20 × (VSNS+ – VSNS–), ranging from 0 V to 1.5 V. This enables direct interface with microcontroller ADCs for real-time current monitoring without external amplification. Its 100 kΩ output impedance and internal 100 kΩ pull-down (when INP is low) are specified in Pin Functions and Electrical Characteristics.
Does the LTC7003HMSE#PBF include overvoltage and undervoltage lockout protections?
Yes, the LTC7003HMSE#PBF includes multiple lockout protections: VIN UVLO (3.5 V), VIN OVLO (set via OVLO pin), VCC UVLO (adjustable via VCCUV pin from 3.5 V to 10.5 V), and BST–TS floating UVLO (3.1 V). All are detailed in Features, Absolute Maximum Ratings, and Applications Information - each independently pulls TGDN to TS to disable the external MOSFET when violated.
LTC7003HMSE#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 ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-MSOP-EP
LTC7003HMSE#PBF FAQ
1.How can I place an order for LTC7003HMSE#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC7003HMSE#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 LTC7003HMSE#PBF reliable?
The price and inventory of LTC7003HMSE#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC7003HMSE#PBF is usually 5 days.
3.What payment methods are accepted for LTC7003HMSE#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC7003HMSE#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC7003HMSE#PBF?
LTC7003HMSE#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC7003HMSE#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 LTC7003HMSE#PBF?
For technical support, including LTC7003HMSE#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC7003HMSE#PBF requirements.
6.How does Aetrix verify that LTC7003HMSE#PBF is sourced from the original manufacturer or authorized distributors?
All LTC7003HMSE#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 LTC7003HMSE#PBF meets industry standards.
7.What is the process for return or replacement of LTC7003HMSE#PBF?
All LTC7003HMSE#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC7003HMSE#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 LTC7003HMSE#PBF part is unused and in its original packaging.
Return procedure for LTC7003HMSE#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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