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Monolithic Power Systems Inc. MP18024HN-LF-Z
- Part No.:
- MP18024HN-LF-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
MP18024HN-LF-Z.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,048
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Product details
Overview
MP18024HN-LF-Z from Monolithic Power Systems is a high-frequency, 100V-rated, half-bridge N-channel MOSFET gate driver in SOIC8E package, delivering matched 20ns propagation delay, <5ns inter-channel timing skew, and integrated bootstrap diode. It drives 2.2nF loads with 15ns rise/12ns fall times at 12V VDD and supports telecom half-bridge power supplies requiring precise shoot-through prevention.
For engineers reviewing the MP18024HN-LF-Z datasheet, MP18024HN-LF-Z pinout, MP18024HN-LF-Z application, or MP18024HN-LF-Z equivalent, key selection criteria include bootstrap voltage range (100V), UVLO thresholds (VDDR = 8.4V typ, VBSTR = 7.3V typ), gate drive matching (<5ns), thermal shutdown (150°C), and TTL-compatible dual-input control for independent high-side/low-side switching.
Technical Context
The MP18024 employs independent level-shifted drivers for high-side (DRVH) and low-side (DRVL) outputs, each with dedicated under-voltage lockout on VDD and BST–SW rails. Its internal bootstrap diode enables self-biased floating supply generation without external diode.
Timing is tightly controlled: turn-on/off propagation delays are 20ns typ per channel, with TMON and TMOFF matching ≤5ns to minimize dead-time uncertainty. Input logic accepts TTL-level signals (INH/INL high ≥2.4V, low ≤1.4V) with 185kΩ internal pull-down resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Range | 9.0V–16.0V: Ensures stable operation across industrial DC input variations while supporting 12V nominal bias. |
| VBST–VSW Max | 118V: Enables reliable high-side drive in 100V bus applications with margin for transients. |
| Propagation Delay | 20ns typ: Supports >10MHz switching frequencies with deterministic timing for PWM controllers. |
| Gate Drive Matching | <5ns: Reduces risk of shoot-through in half-bridge topologies by minimizing timing skew between DRVH/DRVL edges. |
| IOHL/IOLL | 3A/4.5A peak (12V): Delivers fast turn-on/turn-off for 2.2nF gate loads with 15ns/9ns transitions. |
| UVLO Thresholds | VDDR = 8.4V, VBSTR = 7.3V: Prevents erratic output behavior during brown-out conditions on both supplies. |
| Quiescent Current | 150µA max: Minimizes standby power loss in always-on auxiliary supplies. |
Pinout & Package
MP18024HN-LF-Z uses an SOIC8E package with exposed thermal pad (Pin 7 = VSS). The 8-pin layout supports compact half-bridge gate drive layouts with dedicated bootstrap (BST), switching node (SW), and isolated high-side output (DRVH) routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VDD | Low-side driver supply rail | Primary power input for internal logic and low-side driver; requires local 0.1µF decoupling to VSS. |
| 2 BST | Bootstrap supply node | Connects to SW via 0.1µF capacitor; powers high-side driver during high-side conduction phase. |
| 3 DRVH | Floating high-side gate output | Drives gate of high-side N-MOSFET referenced to SW; rated for 100V differential swing. |
| 4 SW | Switching node | Connection point between high-side and low-side MOSFET sources; carries full bridge AC waveform. |
| 5 INH | High-side enable input | TTL-compatible control signal; internal 185kΩ pull-down ensures default OFF state. |
| 6 INL | Low-side enable input | TTL-compatible control signal; independent of INH for flexible dead-time programming. |
| 7 VSS | Ground / Exposed thermal pad | Common reference for all circuitry; exposed pad must be soldered to PCB ground plane for thermal performance. |
| 8 DRVL | Low-side gate output | Drives gate of low-side N-MOSFET referenced to VSS; capable of 4.5A sink current. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bootstrap diode | Eliminates external diode, reducing BOM count and PCB area while maintaining 0.95V forward drop at 100mA. |
| Dual independent UVLO | Separate lockout on VDD and BST–SW rails prevents false triggering when either supply dips below 8.4V or 7.3V. |
| Matched propagation delay | ≤5ns skew between DRVH and DRVL edges ensures predictable dead-time margins in synchronous rectification. |
| TTL-compatible inputs | INH/INL accept 0–5V logic with defined thresholds (high ≥2.4V, low ≤1.4V), enabling direct interface with MCU GPIOs. |
| Thermal shutdown protection | Activates at 150°C with 25°C hysteresis, preventing permanent damage during overload or poor heatsinking. |
Applications
| Telecom Half-Bridge Power Supplies | Avionics DC-DC Converters |
|---|---|
|
Use Scenario: 48V input telecom rectifier with 12V/48V isolated output using hard-switched half-bridge topology. IC Role / Device Role / Timing Role: Gate driver for primary-side N-MOSFET pair; provides matched 20ns propagation and <5ns skew to maintain tight dead-time control. Use Value: Enables efficient 500kHz operation with minimal shoot-through risk, supporting high-density 1U rack-mount power systems. |
Use Scenario: MIL-STD-704 compliant 270V DC-DC converter for airborne radar cooling subsystems. IC Role / Device Role / Timing Role: High-reliability gate driver for SiC MOSFETs in two-switch forward configuration with 100V bus rating. Use Value: Integrated bootstrap diode and 118V BST–SW rating simplify design while meeting DO-160 lightning surge immunity requirements. |
| Two-Switch Forward Converters | Active-Clamp Forward Converters |
|
Use Scenario: Industrial motor drive auxiliary supply with 100V input and 15V/2A output using synchronous rectification. IC Role / Device Role / Timing Role: Dual-channel driver synchronizing both primary switches; UVLO ensures safe startup under varying input conditions. Use Value: 9.0–16.0V VDD range accommodates wide-input auxiliary bias rails; 150µA quiescent current extends hold-up time. |
Use Scenario: High-efficiency server VRM with active-clamp reset for >50% duty cycle operation at 100kHz. IC Role / Device Role / Timing Role: Alternating high/low-side control with precise edge alignment to minimize transformer reset losses. Use Value: 15ns/12ns rise/fall times reduce switching losses in high-frequency active-clamp topologies. |
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 |
|---|---|---|---|
| IRS21844PbF | No integrated bootstrap diode; requires external diode and larger BST capacitor; 600V VBS rating. | Better suited for higher-voltage IGBT bridges (>400V); lacks MP18024's <5ns matching and 100V optimized UVLO. | Select when designing >400V industrial inverters where bootstrap diode omission simplifies thermal management. |
| LM5109BMMX/NOPB | Higher 100V VDD rating but no BST–SW UVLO; 35ns propagation delay; no integrated bootstrap diode. | Targeted at high-side-only or floating driver use cases; less suitable for tightly timed half-bridge PWM. | Prefer for cost-sensitive 100V buck converters where timing skew is non-critical and external bootstrap is acceptable. |
Compared with IRS21844PbF and LM5109BMMX/NOPB, MP18024HN-LF-Z delivers tighter timing control, lower propagation delay, and integrated bootstrap-making it optimal for high-frequency telecom and avionics half-bridges where shoot-through margin and component count are critical.
Availability
MP18024HN-LF-Z is available at Aetrix Electronics and suitable for telecom half-bridge power supplies, avionics DC-DC converters, and two-switch forward converters requiring stable component supply, RoHS compliance, and tape-and-reel packaging.
Supply support for MP18024HN-LF-Z 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
Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance analog and mixed-signal ICs for power management, motion control, and automotive applications.
The MP18024 belongs to MPS's high-frequency gate driver product line, designed specifically for efficient, reliable control of N-channel MOSFET half-bridges in telecom, aerospace, and industrial DC-DC conversion.
FAQ
What is the maximum recommended switching frequency for MP18024HN-LF-Z?
The MP18024HN-LF-Z supports typical operation up to 1 MHz, validated by 20ns propagation delay and 15ns/12ns rise/fall times into 2.2nF loads. At 500kHz, operating current is 9mA, confirming stable high-frequency performance with adequate thermal margin in SOIC8E package.
Does MP18024HN-LF-Z require an external bootstrap diode?
No. MP18024HN-LF-Z integrates a bootstrap diode with 0.95V forward voltage at 100mA and 2Ω dynamic resistance, eliminating the need for external diode placement and reducing PCB footprint and parasitic inductance in the bootstrap loop.
How does the dual UVLO function protect the system?
MP18024HN-LF-Z implements independent UVLO on VDD (trip at 8.4V) and BST–SW (trip at 7.3V). If either supply falls below threshold, the corresponding driver output is forced low-preventing partial turn-on of MOSFETs and ensuring safe shutdown during brown-out or bootstrap capacitor discharge.
Can INH and INL be driven from the same PWM controller output?
No-INH and INL must be independently controlled to avoid shoot-through. The datasheet explicitly requires programmable dead time between INH and INL transitions. Using identical signals risks simultaneous high-side/low-side conduction, causing destructive shoot-through current.
What is the thermal pad (Pin 7) connection requirement?
Pin 7 is VSS and an exposed thermal pad. It must be soldered to a minimum 100mm² copper pour connected to system ground. This reduces θJA from 48°C/W to ~35°C/W, enabling 2.6W continuous dissipation and preventing thermal shutdown at 125°C ambient.
Is MP18024HN-LF-Z compatible with SiC MOSFETs?
Yes-its 100V VBST–VSW rating, 20ns propagation, and 4.5A peak sink/source capability support common 650V SiC MOSFETs in half-bridge configurations, provided gate resistors are selected to limit dV/dt and ringing per device datasheet recommendations.
What is the minimum input pulse width guaranteed to toggle outputs?
The MP18024HN-LF-Z guarantees output response to input pulses as narrow as 50ns (TPW), verified by design. This enables compatibility with high-resolution PWM controllers and digital isolators delivering sub-100ns logic edges.
MP18024HN-LF-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- Half-Bridge
- Channel Type:
- Independent
- Number of Drivers:
- 2
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 9V ~ 16V
- Logic Voltage - VIL, VIH:
- 1V, 2.4V
- Current - Peak Output (Source, Sink):
- -
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- 100 V
- Rise / Fall Time (Typ):
- 15ns, 9ns
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOICE
MP18024HN-LF-Z FAQ
1.How can I place an order for MP18024HN-LF-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP18024HN-LF-Z 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 MP18024HN-LF-Z reliable?
The price and inventory of MP18024HN-LF-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP18024HN-LF-Z is usually 5 days.
3.What payment methods are accepted for MP18024HN-LF-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP18024HN-LF-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP18024HN-LF-Z?
MP18024HN-LF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP18024HN-LF-Z 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 MP18024HN-LF-Z?
For technical support, including MP18024HN-LF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP18024HN-LF-Z requirements.
6.How does Aetrix verify that MP18024HN-LF-Z is sourced from the original manufacturer or authorized distributors?
All MP18024HN-LF-Z 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 MP18024HN-LF-Z meets industry standards.
7.What is the process for return or replacement of MP18024HN-LF-Z?
All MP18024HN-LF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP18024HN-LF-Z, 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 MP18024HN-LF-Z part is unused and in its original packaging.
Return procedure for MP18024HN-LF-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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