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Analog Devices Inc./Maxim Integrated MAX15018BASA+
- Part No.:
- MAX15018BASA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
MAX15018BASA+.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,550
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Product details
Overview
MAX15018BASA+ from Maxim Integrated is a high-frequency, 125V half-bridge n-channel MOSFET driver with noninverting high-side and inverting low-side logic inputs, 3A peak source/sink current per output, 35ns typical propagation delay, and integrated bootstrap diode - designed for telecom power converters and synchronous buck topologies operating from -40°C to +125°C.
For engineers reviewing the MAX15018BASA+ datasheet, MAX15018BASA+ pinout, MAX15018BASA+ application, or MAX15018BASA+ equivalent, this page delivers verified technical context, package mapping, real-world timing behavior, thermal performance data, and validated alternative options for high-voltage gate drive design.
Technical Context
The MAX15018BASA+ implements independent high- and low-side drivers with CMOS (VDD/2) logic inputs, where IN_H is noninverting and IN_L is inverting - enabling direct PWM control without external logic inversion. Its internal bootstrap diode (VF = 0.9V typ, tRR = 40ns) eliminates external diode requirements while supporting up to 125V HS-to-GND transient operation.
UVLO protection is applied separately to VDD (7.3V rising threshold) and BST-to-HS (6.9V rising threshold), each with 0.5V hysteresis; shoot-through prevention uses break-before-make logic, and output resistance is temperature-dependent (RON_HP = 1.75–3.0Ω at 25°C/+125°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Input Voltage (HS-to-GND) | 125V - provides 25V margin above telecom 100V transient requirement |
| Peak Output Current | 3A source/sink - drives high-Qg MOSFETs at >1MHz switching frequencies |
| Propagation Delay (typ) | 35ns - enables precise timing control in high-frequency telecom DC/DC converters |
| Delay Matching (max) | 8ns between DH/DL - ensures balanced dead-time margins and minimizes shoot-through risk |
| VDD Supply Range | 8V to 12.6V - compatible with standard 12V intermediate bus architectures |
| Logic Input Type | CMOS (VDD/2) - supports 15V-tolerant inputs independent of VDD voltage |
| Operating Temperature | -40°C to +125°C - qualified for automotive-grade power supply modules |
Pinout & Package
MAX15018BASA+ is housed in an 8-pin SO-EP (exposed pad) package with GND-connected EP for enhanced thermal dissipation (θJC = 6°C/W). The thermally robust layout supports 1.904W continuous power dissipation at TA = +70°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VDD | Low-side driver supply input | Bypassed with 0.1µF + 1µF ceramics; powers DL and logic core |
| 2 BST | Bootstrap capacitor node | Charged via internal diode when DL is active; supplies DH driver stage |
| 3 DH | High-side gate driver output | Sinks/sources 3A to HS MOSFET gate; referenced to HS pin |
| 4 HS | High-side MOSFET source return | Return path for DH output and BST capacitor; withstands 130V transients |
| 5 IN_H | Noninverting high-side logic input | CMOS-level (VDD/2 threshold); 15V tolerant; controls DH directly |
| 6 IN_L | Inverting low-side logic input | CMOS-level; inverted response at DL - enables complementary PWM generation |
| 7 GND | Ground reference | Return for IN_H/IN_L, DL output, and bypass capacitors; must connect to system ground |
| 8 DL | Low-side gate driver output | Sinks/sources 3A to LS MOSFET gate; referenced to GND |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bootstrap diode | Eliminates external diode; VF = 0.9V typ reduces bootstrap loss and improves efficiency |
| Break-before-make logic | Prevents simultaneous DH/DL conduction - avoids shoot-through and VDD current spikes |
| 15V-tolerant logic inputs | IN_H/IN_L accept up to +15V regardless of VDD - simplifies interface with diverse controllers |
| Low 8pF input capacitance | Minimizes controller loading and preserves signal integrity at multi-MHz edge rates |
| Thermally enhanced SO-EP | Exposed pad tied to GND enables 1.904W dissipation - supports high-power density designs |
Applications
| Telecom Power Supplies | Synchronous Buck DC/DC Converters |
|---|---|
Use Scenario: 48V input telecom rectifier with 12V/50A output using half-bridge topology. IC Role / Device Role / Timing Role: Drives high-side and low-side SiC MOSFETs with matched 35ns delays to maintain tight dead-time control under 500kHz switching. Use Value: 125V rating absorbs line transients; integrated bootstrap diode reduces BOM count by one component. |
Use Scenario: Point-of-load regulator in server VRM delivering 1.8V@120A with multiphase interleaving. IC Role / Device Role / Timing Role: Provides fast, high-current gate drive to low-RDS(on) MOSFETs; inverting IN_L enables direct connection to phase-shifted PWM signals. Use Value: 3A peak current ensures sub-20ns MOSFET turn-on; 8ns max delay matching prevents cross-conduction losses. |
| Half-Bridge Converters | Motor Control (BLDC Inverter Stage) |
Use Scenario: Isolated 1kW DC/DC converter with resonant LLC secondary and primary-side half-bridge. IC Role / Device Role / Timing Role: Controls primary-side 1200V Si IGBTs via gate transformers; UVLO on BST ensures safe startup before high-side activation. Use Value: 125V HS rating accommodates reflected transients; -40°C to +125°C range supports industrial ambient conditions. |
Use Scenario: 3-phase BLDC inverter for HVAC compressor driving 400V DC bus. IC Role / Device Role / Timing Role: Gate driver for three half-bridge legs; inverting IN_L allows single PWM input per leg with complementary outputs. Use Value: 35ns propagation delay enables <100ns dead-time setting; SO-EP package aids thermal management in enclosed enclosures. |
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 |
|---|---|---|---|
| MAX15018AASA+ | Noninverting IN_L (vs. inverting in MAX15018BASA+); otherwise identical specs and pinout | Requires external inverter or controller-level inversion for complementary PWM | Select MAX15018AASA+ only if system logic already provides inverted low-side signal |
| HIP2100IB | No integrated bootstrap diode; requires external Schottky; 100V max HS rating vs. 125V | Limited to lower-voltage telecom or industrial supplies; higher BOM cost and layout complexity | Choose HIP2100IB only if legacy design reuse or specific qualification requirements mandate it |
Compared with MAX15018AASA+, MAX15018BASA+ eliminates need for external logic inversion in synchronous buck; versus HIP2100IB, it adds integrated bootstrap diode and +25V HS voltage margin - reducing component count and improving transient robustness.
Availability
MAX15018BASA+ is available at Aetrix Electronics and suitable for telecom power supplies, synchronous buck DC/DC converters, and half-bridge motor inverters requiring stable component supply across extended temperature and high-reliability production cycles.
Supply support for MAX15018BASA+ 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
Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and automotive markets.
The MAX15018/MAX15019 family was engineered for high-frequency, high-voltage gate driving in telecom and server power supplies - emphasizing propagation delay matching, integrated bootstrap functionality, and automotive-grade thermal reliability.
FAQ
What is the logic configuration of MAX15018BASA+?
The MAX15018BASA+ features a noninverting high-side driver (IN_H → DH) and an inverting low-side driver (IN_L → inverted DL), enabling direct complementary PWM generation without external logic. This differs from MAX15018AASA+, which has two noninverting inputs. The MAX15018BASA+ uses CMOS (VDD/2) thresholds and tolerates up to +15V on IN_H/IN_L regardless of VDD level.
Does MAX15018BASA+ include an integrated bootstrap diode?
Yes, MAX15018BASA+ integrates a bootstrap diode between VDD and BST with 0.9V typical forward voltage and 40ns reverse recovery time. This eliminates the need for an external discrete diode, reduces PCB area, and improves reliability in high-density telecom power modules. The diode is rated for 140V BST-to-HS maximum voltage.
What is the maximum allowable HS-to-GND voltage for MAX15018BASA+?
The absolute maximum HS-to-GND voltage for MAX15018BASA+ is +130V for repetitive transients and 125V for continuous operation. This 25V margin over the 100V telecom transient standard ensures robust operation in 48V and 54V input systems subject to lightning surge or hot-swap events.
How does MAX15018BASA+ prevent shoot-through?
MAX15018BASA+ employs internal break-before-make logic that forces both DH and DL into low state during input transitions, eliminating simultaneous conduction. This hardware-level protection - combined with guaranteed ≤8ns propagation delay matching - ensures safe dead-time implementation even without external timing circuitry.
What package type and thermal performance does MAX15018BASA+ use?
MAX15018BASA+ uses an 8-pin SO-EP (exposed pad) package with the EP internally connected to GND. At TA = +70°C, it delivers 1.904W continuous power dissipation (derating 23.8mW/°C above +70°C), supported by θJC = 6°C/W. Proper soldering of the EP to a large ground plane is required to achieve rated thermal performance.
MAX15018BASA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- Half-Bridge
- Channel Type:
- Independent
- Number of Drivers:
- 2
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 8V ~ 12.6V
- Logic Voltage - VIL, VIH:
- -
- Current - Peak Output (Source, Sink):
- 3A, 3A
- Input Type:
- Inverting, Non-Inverting
- High Side Voltage - Max (Bootstrap):
- 125 V
- Rise / Fall Time (Typ):
- 50ns, 40ns
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC-EP
MAX15018BASA+ FAQ
1.How can I place an order for MAX15018BASA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX15018BASA+ 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 MAX15018BASA+ reliable?
The price and inventory of MAX15018BASA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX15018BASA+ is usually 5 days.
3.What payment methods are accepted for MAX15018BASA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX15018BASA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX15018BASA+?
MAX15018BASA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX15018BASA+ 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 MAX15018BASA+?
For technical support, including MAX15018BASA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX15018BASA+ requirements.
6.How does Aetrix verify that MAX15018BASA+ is sourced from the original manufacturer or authorized distributors?
All MAX15018BASA+ 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 MAX15018BASA+ meets industry standards.
7.What is the process for return or replacement of MAX15018BASA+?
All MAX15018BASA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX15018BASA+, 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 MAX15018BASA+ part is unused and in its original packaging.
Return procedure for MAX15018BASA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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