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Analog Devices Inc./Maxim Integrated MAX5078BATT+
- Part No.:
- MAX5078BATT+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Gate Drivers
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
MAX5078BATT+.pdf
- Description:
- MAX5078 4A, 20NS, MOSFET DRIVER
- Quantity:
- Payment:
- Shipping:
Inventory:15,751
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Product details
Overview
MAX5078BATT+ from Maxim Integrated is a high-speed, TTL-compatible MOSFET driver IC designed for gate driving in high-frequency power stages. It delivers 4A peak source/sink current, achieves 20ns typical propagation delay and 20ns rise/fall times into 5000pF, and operates from 4V to 15V over –40°C to +125°C. It is used in synchronous buck converters, boost regulators, and motor control H-bridges where fast, shoot-through–free switching is critical.
For engineers reviewing the MAX5078BATT+ datasheet, MAX5078BATT+ pinout, MAX5078BATT+ application, or MAX5078BATT+ equivalent, key selection criteria include TTL input compatibility, matched inverting/noninverting propagation delays (≤2ns mismatch), thermally enhanced 6-pin TDFN-EP package, and integrated shoot-through prevention logic - all validated for automotive-grade reliability.
Technical Context
The MAX5078BATT+ implements a break-before-make totem-pole output stage with low RON p-channel and n-channel devices, enabling fast turn-on/turn-off of high-gate-charge MOSFETs. Its TTL input thresholds (VIH = 2.1V, VIL = 0.8V) and 0.3V hysteresis ensure noise immunity in noisy industrial environments.
Internal undervoltage lockout (UVLO = 3.5V ±0.2V) forces OUT low during brownout, while logic inputs tolerate up to +18V regardless of VDD. The device prevents shoot-through via internal control logic and features matched delay paths between IN+ and IN− to OUT (≤2ns typical mismatch at VDD = 15V, CL = 10,000pF).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Range | 4V to 15V - supports wide-input DC-DC bias rails including 5V, 12V, and 15V systems without level-shifting. |
| Peak Output Current | 4A sink/source - drives high-Ciss MOSFETs (e.g., >5nC gate charge) at >1MHz switching frequencies. |
| Propagation Delay | 20ns typical - enables precise timing control in <100ns dead-time circuits for synchronous rectification. |
| Input Logic Type | TTL-compatible - interfaces directly with standard PWM controllers (e.g., UC384x, LM5116) without external level shifters. |
| Delay Matching (IN+/IN−) | ≤2ns mismatch - ensures symmetrical timing for complementary drive in half-bridge or full-bridge topologies. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive, industrial motor drives, and telecom power modules. |
| Quiescent Current | 40µA typical - minimizes standby power loss in always-on auxiliary supplies and battery-backed systems. |
Pinout & Package
MAX5078BATT+ uses a 6-pin 3mm × 3mm TDFN-EP package with exposed pad (internally connected to GND) for enhanced thermal dissipation (θJA = 42°C/W). The package is RoHS-compliant and automotive-qualified (AEC-Q100 stress-tested).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN− | Inverting logic input | Accepts TTL-level signals; when high, forces OUT low; used for active-high shutdown or complementary drive. |
| 2,3 - GND | Power and signal ground | Dual GND pins reduce ground loop inductance; exposed pad must be soldered to PCB ground plane for thermal and EMI performance. |
| 4 - VDD | Power supply input | 4V–15V single supply; requires local 0.1µF ceramic bypass capacitor placed adjacent to pin. |
| 5 - OUT | Driver output terminal | Push-pull totem-pole output capable of sourcing/sinking 4A peak; connects directly to MOSFET gate. |
| 6 - IN+ | Noninverting logic input | Accepts TTL-level signals; when high, drives OUT high; used for PWM enable or primary control path. |
Key Features
| Feature | Design Value |
|---|---|
| Shoot-through prevention logic | Break-before-make control eliminates cross-conduction in half-bridge configurations, reducing power loss and MOSFET stress. |
| +18V input tolerance | Logic inputs withstand transient spikes up to +18V independent of VDD - simplifies ESD protection design in noisy power systems. |
| Low input capacitance | 2.5pF typical - minimizes loading on upstream PWM controller outputs and preserves signal integrity at >10MHz edge rates. |
| UVLO with hysteresis | 3.5V turn-on threshold with 200mV hysteresis - prevents oscillatory startup during supply ramp-up and improves system robustness. |
| Thermally enhanced package | TDFN-EP with exposed pad dissipates up to 1.45W at TA = +70°C - enables compact layout in space-constrained DC-DC modules. |
Applications
| High-Frequency Synchronous Buck Converter | Automotive DC-DC Power Module |
|---|---|
|
Use Scenario: Driving high-side and low-side N-channel MOSFETs in a 500kHz–2MHz synchronous buck regulator for ADAS camera power supplies. IC Role / Device Role / Timing Role: Dual-input driver provides independent control of both switches with matched propagation delays to maintain precise dead-time and prevent shoot-through. Use Value: 20ns propagation delay and ≤2ns IN+/IN− delay matching enable stable operation at 2MHz with <50ns dead-time, improving efficiency by >3% vs. slower drivers. |
Use Scenario: Gate-driving power MOSFETs in a 12V-to-5V/3.3V automotive body-control module requiring AEC-Q100 compliance. IC Role / Device Role / Timing Role: TTL-input driver interfaces directly with microcontroller GPIOs and supports –40°C to +125°C ambient operation without derating. Use Value: Automotive-qualified TDFN-EP package and UVLO with hysteresis ensure reliable cold-cranking startup and brownout recovery in vehicle electrical systems. |
| Industrial Motor Control H-Bridge | Isolated Forward Converter Secondary Drive |
|
Use Scenario: Controlling four external N-channel MOSFETs in an H-bridge for 24V BLDC motor commutation in factory automation equipment. IC Role / Device Role / Timing Role: Inverting (IN−) and noninverting (IN+) inputs allow direct PWM and complementary logic generation without external inverters. Use Value: 4A peak drive current reduces MOSFET switching losses by enabling faster gate charging/discharging, lowering conduction losses by ~12% at 10A load. |
Use Scenario: Driving synchronous rectifier MOSFETs on the secondary side of an isolated forward converter in telecom power supplies. IC Role / Device Role / Timing Role: Fast 20ns rise/fall times minimize reverse-recovery losses in rectifier FETs during high-frequency zero-voltage switching transitions. Use Value: Low 2.5pF input capacitance and TTL compatibility simplify isolation barrier interface with optocoupler or digital isolator outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar MOSFET driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IXDN404PI | 4A peak, 10ns propagation delay, 5V–18V supply, no UVLO, SOIC-8 package | Lacks automotive temperature range and integrated shoot-through prevention; requires external logic for dead-time control | Preferred for cost-sensitive industrial SMPS where layout space allows SOIC-8 and UVLO is managed externally |
| TPS28225DR | 4A peak, 25ns propagation delay, 4.5V–15V supply, TTL-compatible, 6-pin SON package, includes enable pin | SON package has higher θJA (50°C/W); no +18V input tolerance; lower drive strength below 4.5V | Suitable for non-automotive applications needing enable functionality and tighter board area constraints than TDFN-EP allows |
Compared with IXDN404PI and TPS28225DR, MAX5078BATT+ offers superior automotive qualification, integrated shoot-through protection, and tighter delay matching - making it the optimal choice for high-reliability, high-frequency power conversion where timing precision and system-level robustness are critical.
Availability
MAX5078BATT+ is available at Aetrix Electronics and suitable for synchronous buck converters, automotive DC-DC modules, and industrial motor control H-bridges requiring stable component supply across extended temperature and long production lifecycles.
Supply support for MAX5078BATT+ 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) designs precision analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX5078BATT+ belongs to Maxim's high-speed power driver product line, engineered specifically for gate-driving high-frequency, high-current MOSFETs in automotive-grade and industrial power conversion systems.
FAQ
What logic voltage levels does MAX5078BATT+ accept?
MAX5078BATT+ accepts TTL-compatible logic inputs: VIH = 2.1V (min), VIL = 0.8V (max), with 0.3V hysteresis. It tolerates input voltages up to +18V regardless of VDD, enabling robust interfacing with legacy controllers and noisy environments without external clamping.
Does MAX5078BATT+ require external components for stable operation?
Yes - MAX5078BATT+ requires a minimum 0.1µF ceramic capacitor placed directly between VDD and GND pins, plus a bulk 10µF capacitor nearby. The exposed pad must be soldered to a solid ground plane. These are mandatory for thermal management, supply decoupling, and preventing oscillation due to high di/dt transients.
How does MAX5078BATT+ prevent shoot-through in bridge configurations?
MAX5078BATT+ incorporates internal break-before-make logic that ensures the high-side and low-side drive signals never overlap. This eliminates cross-conduction in half-bridge or full-bridge topologies, reducing power loss and MOSFET failure risk - no external timing circuitry is needed for safe operation.
What is the maximum capacitive load MAX5078BATT+ can drive while maintaining 20ns timing?
MAX5078BATT+ achieves 20ns typical rise/fall times and 20ns propagation delay when driving a 5000pF load at VDD = 15V. At 10,000pF, rise/fall times increase to 32ns/26ns (VDD = 15V), but propagation delay remains within 20ns–34ns. For loads >5000pF, layout optimization and gate resistors may be required to suppress ringing.
Is MAX5078BATT+ pin-compatible with MAX5078AATT+?
Yes - MAX5078BATT+ and MAX5078AATT+ share identical pinout, package (6-pin TDFN-EP), and electrical specifications except for logic input thresholds: MAX5078BATT+ uses TTL levels (VIH = 2.1V), while MAX5078AATT+ uses CMOS levels (VIH = 0.7×VDD). Swapping them requires verifying upstream logic compatibility.
MAX5078BATT+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- Driven Configuration:
- Low-Side
- Channel Type:
- Single
- Number of Drivers:
- 1
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 4V ~ 15V
- Logic Voltage - VIL, VIH:
- 0.8V, 2.1V
- Current - Peak Output (Source, Sink):
- 4A, 4A
- Input Type:
- Inverting, Non-Inverting
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- 4ns, 4ns
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TDFN-EP (3x3)
MAX5078BATT+ FAQ
1.How can I place an order for MAX5078BATT+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX5078BATT+ 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 MAX5078BATT+ reliable?
The price and inventory of MAX5078BATT+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX5078BATT+ is usually 5 days.
3.What payment methods are accepted for MAX5078BATT+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX5078BATT+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX5078BATT+?
MAX5078BATT+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX5078BATT+ 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 MAX5078BATT+?
For technical support, including MAX5078BATT+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX5078BATT+ requirements.
6.How does Aetrix verify that MAX5078BATT+ is sourced from the original manufacturer or authorized distributors?
All MAX5078BATT+ 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 MAX5078BATT+ meets industry standards.
7.What is the process for return or replacement of MAX5078BATT+?
All MAX5078BATT+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX5078BATT+, 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 MAX5078BATT+ part is unused and in its original packaging.
Return procedure for MAX5078BATT+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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