7A Sink/3A Source Current, 8ns, SOT23, MOSFET Driver

 

Part Number	Replacement	Explanation

Description

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The MAX5048C is a high-speed MOSFET driver capable of sinking/sourcing 7A/3A peak currents. This device takes logic input signals and drives a large external MOSFET. The device has inverting and noninverting inputs that give the user greater flexibility in controlling the MOSFET. The device also has the features necessary to drive low-side enhancement-mode Gallium Nitride (GaN) FETs. The device features two separate outputs working in complementary mode, offering flexibility in controlling both turn-on and turn-off switching speeds.

The device has internal logic circuitry, which prevents shoot-through during output state changes. The logic inputs are protected against voltage spikes up to +14V, regardless of V+ voltage. Propagation delay time is minimized and matched between the inverting and noninverting inputs. The device has very fast switching times combined with very short propagation delays (8ns typ) making it ideal for high-frequency circuits.

The device operates from a +4V to +14V single power supply, typically consuming 0.5mA of supply current and has TTL input logic levels. This device is available in a 6-pin SOT23 package and provides an upgrade path for users of the MAX5048B.

MAX5048C: Typical Operating Circuit Enlarge+

Key Features

• Improved Power Conversion Efficiency
  • Low 8ns Propagation Delay
  • 5ns Typical Rise and 4ns Typical Fall Times with 1nF Load
  • 0.3Ω Open-Drain n-Channel Sink Output
  • 0.84Ω Open-Drain p-Channel Source Output
• Improved EMI
  • Independent Source/Sink Outputs for Controllable Rise and Fall Times
• Reduced Solution Size and Cost
  • Low Input Capacitance (10pF, typ)
  • 6-Pin SOT-23 Package
  • +4V to +14V Single Power Supply
• Greater Flexibility in Controlling the MOSFET
  • Matching Delay Time Between Inverting and Noninverting Inputs
  • 7A/3A Peak Sink/Source Drive Current
  • TTL Logic-Level Inputs with Hysteresis for Noise Immunity
• Improved System Reliabilty
  • Inputs Rated to +14V Regardless of V+ Voltage
  • Thermal Shutdown Protection
  • -40°C to +125°C Operating Temperature Range
• Easy Upgrade from MAX5048B
  • Pin-Compatible with the MAX5048B

Applications/Uses

• DC-DC Converters
• Motor Control
• Power MOSFET Switching
• Power-Supply Modules
• Switch-Mode Power Supplies