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Analog Devices Inc./Maxim Integrated MAX15012BASA+
- Part No.:
- MAX15012BASA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX15012BASA+.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,460
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Product details
Overview
MAX15012BASA+ from Maxim Integrated is a high-speed, 175V half-bridge n-channel MOSFET driver with noninverting high-side and inverting low-side outputs, CMOS (VDD/2) logic inputs, 35ns typical propagation delay, ±2A peak source/sink current, and operation over –40°C to +125°C - designed for telecom power converters and active-clamp forward topologies.
For engineers reviewing the MAX15012BASA+ datasheet, MAX15012BASA+ pinout, MAX15012BASA+ application, or MAX15012BASA+ equivalent, key selection considerations include matched propagation delay (≤8ns), integrated bootstrap diode, 8–12.6V VDD range, and SO-8 package compatibility with high-voltage switching requirements in isolated DC-DC stages.
Technical Context
The MAX15012BASA+ implements independent high- and low-side drivers using HV BiCMOS process, enabling 175V HS voltage capability and fast switching up to 500kHz. Its internal bootstrap diode (VF = 0.91–1.11V) eliminates external diode need while supporting bootstrap capacitor charging via DL conduction.
Logic inputs are CMOS-level (VIH = 0.67×VDD, VIL = 0.4×VDD) with 1.6V hysteresis and 2.5pF input capacitance; undervoltage lockout (UVLO) operates at 6.5–8.0V on VDD and 6.0–7.8V on BST-to-HS, each with 0.5V hysteresis - ensuring robust start-up and fault recovery in high-dV/dt environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VHS_MAX | 175V - supports telecom-grade 100V transient margin without external level-shifting or isolation. |
| Peak Source/Sink Current | 2A - drives high gate-charge MOSFETs (e.g., >10nC) with sub-35ns rise/fall times under 10nF load. |
| Propagation Delay (tD_ON/tD_OFF) | 35ns typ - enables precise timing control in high-frequency (>300kHz) half-bridge and two-switch forward converters. |
| Delay Matching (tMATCH) | 2ns typ / 8ns max - minimizes shoot-through risk during simultaneous high/low transitions without external dead-time circuitry. |
| VDD Range | 8.0V to 12.6V - powers both drivers and internal logic while maintaining full 175V HS rating when VDD ≥ 10.5V. |
| Input Logic Type | CMOS (VDD/2) - allows interoperability with 3.3V/5V controllers even when VDD = 12V, with 14V absolute max input tolerance. |
| Quiescent Supply Current | 70µA (no switching) - reduces standby power in always-on telecom modules and industrial PSUs. |
Pinout & Package
MAX15012BASA+ uses an industry-standard 8-pin SOIC (SO-8, package code S8-5) with exposed pad not present (non-EP variant). Thermal resistance θJA = 170°C/W enables operation at full rating up to +70°C ambient without heatsinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Power input for logic and low-side driver | Bypassed with 0.1µF + 1µF ceramics; must stay ≤13.2V above GND to avoid damage. |
| 2 - BST | Bootstrap capacitor connection | Connects to HS via 0.1µF ceramic; internal diode charges it during DL on-time. |
| 3 - DH | High-side gate driver output | Sources/sinks 2A; referenced to HS; pulls low during UVLO or IN_H = low. |
| 4 - HS | High-side MOSFET source terminal | Return path for high-side driver; withstands −5V to +180V transients; dV/dt rated to 50V/ns. |
| 5 - IN_H | Noninverting high-side logic input | CMOS-level (VDD/2 threshold); 1MΩ internal pull-down; 2.5pF capacitance minimizes signal loading. |
| 6 - IN_L | Inverting low-side logic input | CMOS-level; internally pulled up to VDD; complements IN_H for complementary drive in half-bridge. |
| 7 - GND | Ground reference for logic and low-side driver | Shared return for IN_H/IN_L and DL; requires low-inductance ground plane per layout guidelines. |
| 8 - DL | Low-side gate driver output | Sources/sinks 2A; referenced to GND; actively pulls low during UVLO or IN_L = high (due to inversion). |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bootstrap diode | Eliminates external Schottky diode; VF = 0.91–1.11V at 100mA, reducing BOM count and PCB area in compact PSU designs. |
| Matched propagation delay | 2ns typical matching between DH and DL ensures <1% timing skew at 500kHz, critical for ZVS/ZCS soft-switching topologies. |
| High-voltage HS operation | 175V HS rating supports direct drive of 100V+ bus applications (e.g., PoE PSE, telecom rectifiers) without gate-drive transformers. |
| CMOS logic with hysteresis | 1.6V input hysteresis prevents noise-induced false triggering in electrically noisy power systems (e.g., motor drives, SMPS EMI zones). |
| UVLO with dual thresholds | Independent VDD and BST UVLO (6.5–8.0V and 6.0–7.8V) prevent erratic switching during brown-out or bootstrap capacitor undercharge. |
| Break-before-make logic | 1ns internal dead time between p- and n-channel output FETs suppresses shoot-through current, reducing supply ripple and thermal stress. |
Applications
| Telecom Half-Bridge Power Supplies | Two-Switch Forward Converters |
|---|---|
|
Use Scenario: 48V input telecom rectifier delivering 12V/50A output with synchronous rectification and 350kHz switching. IC Role / Device Role / Timing Role: Drives high-side and low-side SiC MOSFETs in interleaved half-bridge stage; provides matched timing for zero-voltage switching. Use Value: 35ns propagation delay and 2ns matching enable precise phase alignment across paralleled bridges, improving efficiency by >1.2% at full load. |
Use Scenario: 380V DC input two-switch forward converter powering base station RF amplifiers with tight output regulation. IC Role / Device Role / Timing Role: Controls primary-side switches with complementary logic; internal bootstrap sustains high-side drive during extended off-times. Use Value: Integrated bootstrap diode and 175V HS rating eliminate external charge-pump complexity, reducing solution size by 28% vs. discrete alternatives. |
| Active-Clamp Forward Converters | Power-Supply Modules |
|
Use Scenario: 54V input active-clamp forward design for server VRMs requiring <1% output ripple and fast transient response. IC Role / Device Role / Timing Role: Drives main switch and clamp switch with noninverting/inverting logic pair; manages dead-time via input sequencing. Use Value: Inverting low-side input (IN_L) simplifies controller interface by eliminating external inverters, cutting gate-drive component count by 3. |
Use Scenario: Compact 200W quarter-brick DC-DC module for industrial automation with 24V input and 5V/40A output. IC Role / Device Role / Timing Role: High-current gate driver for GaN HEMTs in LLC resonant half-bridge; handles 2A peak loads with minimal overshoot. Use Value: 2.5Ω typical RON output stage delivers <10ns rise/fall times into 1nF load, enabling >600kHz operation while maintaining <5% duty-cycle resolution. |
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 |
|---|---|---|---|
| MAX15012AASA+ | Noninverting high- and low-side drivers; pin-compatible with HIP2100IB; identical VDD range, propagation delay, and package. | Requires external inverter for complementary drive; less suitable for direct PWM controller interfaces needing inverted low-side signal. | Select when controller provides two noninverted PWM signals or when HIP2100IB drop-in replacement is required. |
| UCC27211D | 120V HS rating, 4A peak drive, TTL/CMOS selectable inputs; no integrated bootstrap diode; SO-8 package. | Lacks internal bootstrap diode - requires external Schottky and larger BST capacitor; lower voltage rating limits telecom use. | Choose for cost-sensitive 60–100V applications where higher peak current justifies added external components and reduced HV margin. |
Compared with MAX15012AASA+, MAX15012BASA+ offers native complementary drive without external logic, simplifying controller interface; versus UCC27211D, it trades peak current for integrated bootstrap and 175V operation - making it optimal for space-constrained, high-voltage telecom and industrial PSUs.
Availability
MAX15012BASA+ is available at Aetrix Electronics and suitable for telecom power supplies, two-switch forward converters, active-clamp forward topologies, and compact power-supply modules requiring stable component supply, automotive-grade temperature support, and lead-free compliance.
Supply support for MAX15012BASA+ 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 demanding industrial, telecom, and automotive applications.
The MAX15012/MAX15013 family was engineered for high-efficiency, high-voltage DC-DC conversion - delivering matched timing, integrated bootstrap, and robust HV operation in telecom rectifiers and isolated SMPS.
FAQ
What is the logic configuration of MAX15012BASA+?
The MAX15012BASA+ features a noninverting high-side driver (IN_H → DH) and an inverting low-side driver (IN_L → DL). This configuration enables direct connection to standard PWM controllers without external inverters, reducing component count and layout complexity in half-bridge and active-clamp forward designs. The CMOS (VDD/2) input thresholds ensure compatibility with 3.3V, 5V, and 12V logic sources.
Does MAX15012BASA+ include an internal bootstrap diode?
Yes, MAX15012BASA+ integrates a reliable on-chip bootstrap diode between VDD and BST. With a typical forward voltage of 0.91–1.11V at 100mA and 10ns turn-on/turn-off time, it eliminates the need for an external Schottky diode - simplifying bill-of-materials and improving reliability in high-density power modules.
What is the maximum operating frequency supported by MAX15012BASA+?
MAX15012BASA+ supports up to 500kHz switching frequency, validated under CL = 1000pF load conditions. Its 35ns typical propagation delay, 7ns rise/fall times (CL = 1000pF), and 2ns typical delay matching make it suitable for high-frequency telecom and industrial SMPS where timing precision and efficiency are critical.
How does the UVLO function on MAX15012BASA+?
MAX15012BASA+ implements dual independent UVLO circuits: VDD UVLO triggers at 6.5–8.0V (rising) with 0.5V hysteresis, pulling DL low; BST-to-HS UVLO activates at 6.0–7.8V (rising), pulling DH low. This ensures safe startup and fault recovery in bootstrap-dependent topologies like two-switch forward, preventing erratic gate drive during capacitor charging.
Is MAX15012BASA+ pin-compatible with any legacy drivers?
No - MAX15012BASA+ is not pin-compatible with HIP2100/HIP2101 or other industry-standard drivers. While MAX15012AASA+ and MAX15013AASA+ are HIP2100IB/HIP2101IB compatible, the B/D variants (including MAX15012BASA+) use inverting low-side logic and lack that pinout mapping. Board redesign is required for migration.
MAX15012BASA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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):
- 2A, 2A
- Input Type:
- Inverting, Non-Inverting
- High Side Voltage - Max (Bootstrap):
- 175 V
- Rise / Fall Time (Typ):
- 65ns, 65ns
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX15012BASA+ FAQ
1.How can I place an order for MAX15012BASA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX15012BASA+ 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 MAX15012BASA+ reliable?
The price and inventory of MAX15012BASA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX15012BASA+ is usually 5 days.
3.What payment methods are accepted for MAX15012BASA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX15012BASA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX15012BASA+?
MAX15012BASA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX15012BASA+ 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 MAX15012BASA+?
For technical support, including MAX15012BASA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX15012BASA+ requirements.
6.How does Aetrix verify that MAX15012BASA+ is sourced from the original manufacturer or authorized distributors?
All MAX15012BASA+ 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 MAX15012BASA+ meets industry standards.
7.What is the process for return or replacement of MAX15012BASA+?
All MAX15012BASA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX15012BASA+, 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 MAX15012BASA+ part is unused and in its original packaging.
Return procedure for MAX15012BASA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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