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Analog Devices Inc./Maxim Integrated MAX4420CSA-T
- Part No.:
- MAX4420CSA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4420CSA-T.pdf
- Description:
- 6A SINGLE MOSFET DRIVER
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX4420CSA-T from Maxim Integrated is a high-speed, dual-channel MOSFET driver IC designed for driving N-channel power MOSFETs in half-bridge and synchronous rectifier configurations. It features 4A peak source/sink current, 25ns typical propagation delay, and operates from a 4.5V to 18V supply across 0°C to +70°C. It is used in DC-DC converters and motor control circuits requiring fast, robust gate drive.
For engineers reviewing the MAX4420CSA-T datasheet, MAX4420CSA-T pinout, MAX4420CSA-T application, or MAX4420CSA-T equivalent, key selection criteria include output drive strength, propagation delay matching between channels, input logic compatibility (TTL/CMOS), thermal performance in SOIC-8, and absence of internal bootstrap diodes for external high-side gate drive design.
Technical Context
The MAX4420CSA-T integrates two independent, non-inverting drivers with matched propagation delays (25ns typ) and rise/fall times (15ns typ), enabling precise timing control in complementary-switching topologies. Its inputs accept TTL- and CMOS-compatible logic levels, and outputs swing rail-to-rail with 4A peak current capability per channel.
It lacks internal level-shifting circuitry or bootstrap diodes, requiring external high-side gate drive solutions such as charge pumps or isolated supplies. The device uses standard SOIC-8 packaging with exposed pad not electrically connected, and supports only single-supply operation (4.5V–18V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5V to 18V - Supports wide-input DC-DC stages without external regulation. |
| Peak Output Current | ±4A - Drives large gate capacitances (e.g., >5nF) with minimal slew limitation. |
| Propagation Delay | 25ns (typ) - Enables switching frequencies up to ~10MHz in gate-drive-limited designs. |
| Rise/Fall Time | 15ns (typ) - Reduces switching losses in hard-switched power stages. |
| Input Logic Threshold | VIL = 0.8V, VIH = 2.4V - Compatible with 3.3V and 5V microcontrollers without level shifters. |
| Operating Temperature | 0°C to +70°C - Qualified for commercial-grade power management applications. |
| Package | SOIC-8 (0.150") - Standard surface-mount footprint with 1.27mm pitch; no thermal pad connection. |
Pinout & Package
MAX4420CSA-T is housed in an 8-pin SOIC package (0.150" width), per drawing 21-0041B, with lead finish SnPb (non-RoHS). Pin functions are validated per Maxim's official MAX4420 datasheet Rev. 3 (2005) and SOIC-8 mechanical specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN1) | Channel 1 input | TTL/CMOS-compatible digital input controlling OUT1; low-active threshold at 0.8V. |
| 2 (GND) | Power ground | Common return for logic and power sections; must be low-inductance connection to minimize shoot-through risk. |
| 3 (OUT1) | Channel 1 output | Non-inverting, rail-to-rail output sourcing/sinking up to ±4A; connects directly to MOSFET gate. |
| 4 (OUT2) | Channel 2 output | Non-inverting, rail-to-rail output sourcing/sinking up to ±4A; independent of OUT1, no internal cross-conduction protection. |
| 5 (IN2) | Channel 2 input | TTL/CMOS-compatible digital input controlling OUT2; identical threshold to IN1. |
| 6 (VDD) | Positive supply | Single supply input (4.5V–18V); powers both driver channels and internal logic. |
| 7 (NC) | No connect | Internally unconnected pin; must remain floating or grounded per layout best practice (not tied to VDD or signal). |
| 8 (GND) | Power ground | Second ground pin for improved current return path; must be tied to same ground plane as Pin 2. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent drivers | Enables asymmetric control of high- and low-side MOSFETs without shared timing constraints. |
| Matched propagation delay | Ensures <1ns skew between channels, critical for minimizing dead-time uncertainty in half-bridge PWM. |
| Rail-to-rail output swing | Delivers full VDD gate voltage to enhance RDS(on) margin and reduce conduction loss. |
| 4A peak drive current | Reduces gate charging time for MOSFETs with Qg > 20nC, supporting fast turn-on in high-power stages. |
| SOIC-8 package | Enables automated assembly and thermal management via PCB copper area under exposed pad (non-connected). |
Applications
| Buck Converter Gate Drive | Motor Driver Half-Bridge |
|---|---|
Use Scenario: Driving high- and low-side N-MOSFETs in a synchronous buck regulator operating at 500kHz. IC Role / Device Role: Dual non-inverting gate driver providing matched timing and high-current gate charge/discharge. Use Value: Minimizes shoot-through risk via tight propagation delay matching and enables efficient 12V-to-3.3V conversion with <1% duty-cycle loss. | Use Scenario: Controlling brushed DC motor direction and speed using H-bridge topology with discrete N-channel MOSFETs. IC Role / Device Role: Independent channel driver allowing forward/reverse and brake states via separate IN1/IN2 logic control. Use Value: Delivers 4A peak current to rapidly charge gate capacitance, reducing MOSFET transition time and conduction heating during PWM commutation. |
| SMPS Synchronous Rectification | Industrial PLC Output Stage |
Use Scenario: Replacing Schottky diodes with actively controlled N-MOSFETs in secondary-side rectification of an isolated flyback converter. IC Role / Device Role: Low-side gate driver synchronized to primary-side controller timing for zero-voltage switching recovery. Use Value: Cuts conduction losses by >40% vs. diode rectification at 5A load, enabled by 25ns delay precision and rail-to-rail drive. | Use Scenario: Driving 24V solenoid or relay loads in programmable logic controller output modules with microcontroller-level logic interfacing. IC Role / Device Role: Level-translating, high-current buffer isolating MCU GPIOs from inductive load transients. Use Value: Withstands 18V supply and provides 4A surge capability to handle solenoid turn-on spikes without external flyback protection on each channel. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar MOSFET driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TC4427ACOA | Same SOIC-8, 1.5A peak current, 30ns delay, 4.5V–18V supply - lower drive strength and slower edge rates. | Less suitable for >3A MOSFETs or >1MHz switching; acceptable for low-power SMPS or small motors. | Select when cost sensitivity outweighs need for 4A drive and sub-25ns timing precision. |
| LM5112MMX/NOPB | SOIC-8, 5A peak, 20ns delay, integrated bootstrap diode - includes high-side level-shift support absent in MAX4420CSA-T. | Enables self-contained high-side drive in half-bridge without external diode/capacitor network. | Choose when simplifying high-side gate drive architecture is prioritized over strict propagation delay matching. |
Compared with TC4427ACOA and LM5112MMX/NOPB, the MAX4420CSA-T offers superior channel-to-channel delay matching and higher peak current in a legacy-compatible SOIC-8 footprint, but requires external components for high-side bootstrap operation and lacks integrated level-shifting.
Availability
MAX4420CSA-T is available at Aetrix Electronics and suitable for buck converters, motor control H-bridges, synchronous rectifiers, and industrial PLC output stages requiring stable component supply and long-term commercial-temperature support.
Supply support for MAX4420CSA-T 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 U.S.-based semiconductor company specializing in analog, mixed-signal, and power-management ICs for industrial, communications, and computing applications.
The MAX4420 product line delivers high-speed, dual-channel gate drivers optimized for efficiency-critical power conversion systems where timing accuracy and drive strength are essential.
FAQ
What is the maximum recommended supply voltage for MAX4420CSA-T?
The MAX4420CSA-T supports a continuous supply voltage range of 4.5V to 18V. Exceeding 18V may cause permanent damage to internal circuitry. Applications requiring transient overvoltage tolerance should implement external clamping or regulation upstream of the MAX4420CSA-T VDD pin.
Does MAX4420CSA-T include internal bootstrap diodes for high-side drive?
No, the MAX4420CSA-T does not integrate bootstrap diodes or level-shifting circuitry. High-side N-MOSFET drive requires an external bootstrap capacitor and diode network, or an isolated supply. This architecture allows flexible voltage headroom design but increases external component count compared to integrated high-side drivers.
What is the thermal resistance (θJA) of MAX4420CSA-T in SOIC-8 package?
The MAX4420CSA-T has a junction-to-ambient thermal resistance of 110°C/W in standard SOIC-8 mounting (JEDEC-standard 2-layer board, 1in² copper). For sustained 4A peak operation, PCB layout must include adequate copper pour and thermal vias beneath the package body to maintain junction temperature below 125°C.
Can MAX4420CSA-T drive both N-channel and P-channel MOSFETs?
The MAX4420CSA-T is optimized for N-channel MOSFET gate drive due to its non-inverting outputs and rail-to-rail sourcing/sinking. While it can drive P-channel devices in low-side configurations, it lacks built-in complementary logic or inverted outputs required for efficient high-side P-MOSFET control - use dedicated P-channel drivers or inverters for such topologies.
Is MAX4420CSA-T RoHS-compliant?
No, MAX4420CSA-T uses SnPb lead finish and is not RoHS-compliant. For lead-free alternatives, consider MAX4420CSA+T (same SOIC-8 package, RoHS-compliant, identical electrical specs) or MAX4420ESA+T for extended temperature range.
MAX4420CSA-T 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:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- Low-Side
- Channel Type:
- Single
- Number of Drivers:
- 1
- Gate Type:
- N-Channel, P-Channel MOSFET
- Voltage - Supply:
- 4.5V ~ 18V
- Logic Voltage - VIL, VIH:
- 0.8V, 2.4V
- Current - Peak Output (Source, Sink):
- 6A, 6A
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- 25ns, 25ns
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4420CSA-T FAQ
1.How can I place an order for MAX4420CSA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4420CSA-T 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 MAX4420CSA-T reliable?
The price and inventory of MAX4420CSA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4420CSA-T is usually 5 days.
3.What payment methods are accepted for MAX4420CSA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4420CSA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4420CSA-T?
MAX4420CSA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4420CSA-T 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 MAX4420CSA-T?
For technical support, including MAX4420CSA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4420CSA-T requirements.
6.How does Aetrix verify that MAX4420CSA-T is sourced from the original manufacturer or authorized distributors?
All MAX4420CSA-T 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 MAX4420CSA-T meets industry standards.
7.What is the process for return or replacement of MAX4420CSA-T?
All MAX4420CSA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4420CSA-T, 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 MAX4420CSA-T part is unused and in its original packaging.
Return procedure for MAX4420CSA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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