LM5110-2MX/NOPB
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Texas Instruments LM5110-2MX/NOPB

Manufacturer No:
LM5110-2MX/NOPB
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC GATE DRVR LOW-SIDE 8SOIC
Delivery:
Payment:
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Product Introduction

Overview

The LM5110-2MX/NOPB from Texas Instruments is a dual-channel, high-voltage, high-frequency gate driver IC designed to drive N-channel MOSFETs or IGBTs in various high-speed switching applications. This device is part of the LM5110 family, which replaces industry-standard gate drivers with improved peak output current and efficiency. The LM5110 features two independent and identical driver channels with TTL-compatible logic inputs and high-current totem-pole outputs. It is available in SOIC-8 and WSON-10 packages, making it versatile for different design requirements.

Key Specifications

Parameter Value Unit
Output Current Capability 5A sink / 3A source A
Propagation Time 25 ns (typical) ns
Rise and Fall Times 14 ns / 12 ns (with 2 nF load) ns
Input Compatibility TTL compatible -
Output Voltage Swing VCC to VEE (can be negative relative to input ground) V
Shutdown Input TTL compatible logic input -
Package Options SOIC-8, WSON-10 (4 mm x 4 mm) -
Junction-to-Ambient Thermal Resistance (SOIC-8) 114 °C/W °C/W

Key Features

  • Compound CMOS and bipolar outputs to reduce output current variation with voltage and temperature.
  • Independent inputs (TTL compatible) and outputs that can be connected in parallel to double the drive current capability.
  • Fast propagation times (25 ns typical) and fast rise and fall times (14 ns/12 ns with 2 nF load).
  • Dedicated input ground pin (IN_REF) for split supply or single supply operation.
  • Outputs swing from VCC to VEE, which can be negative relative to input ground.
  • Shutdown input provides low power mode with total supply current less than 25 µA.
  • Supply rail undervoltage lockout protection.
  • Pin-out compatible with industry standard gate drivers.

Applications

  • Switch-Mode Power Supplies (SMPS): Drives high-speed switching MOSFETs to improve efficiency and reduce heat.
  • DC-DC Converters: Essential in synchronous buck, boost, or buck-boost converters to drive MOSFETs for efficient conversion.
  • Motor Control Circuits: Used in motor driver circuits for brushless DC motors to switch the MOSFETs that control the motor phases.
  • Class-D Audio Amplifiers: Utilized to drive the output MOSFETs, ensuring high fidelity and efficient amplification.
  • Battery-Powered Tools: Helps in driving high-current MOSFETs in devices like cordless drills, where efficient power management is critical.
  • LED Lighting Drivers: Used in high-efficiency LED drivers for pulse-width modulation dimming and current control.
  • Solar Inverters: Used in the drive circuitry for the efficient conversion of DC generated by solar panels to AC.

Q & A

  1. What is the LM5110-2MX/NOPB used for?

    The LM5110-2MX/NOPB is used to drive N-channel MOSFETs or IGBTs in high-speed switching applications such as switch-mode power supplies, DC-DC converters, motor control circuits, and more.

  2. What are the key features of the LM5110-2MX/NOPB?

    Key features include compound CMOS and bipolar outputs, fast propagation times, dedicated input ground pin, shutdown input, and supply rail undervoltage lockout protection.

  3. What are the output current capabilities of the LM5110-2MX/NOPB?

    The device can source 3A and sink 5A of current.

  4. What are the typical propagation and rise/fall times of the LM5110-2MX/NOPB?

    The typical propagation time is 25 ns, and the rise and fall times are 14 ns and 12 ns, respectively, with a 2 nF load.

  5. What packages is the LM5110-2MX/NOPB available in?

    The device is available in SOIC-8 and WSON-10 (4 mm x 4 mm) packages.

  6. How does the shutdown input function on the LM5110-2MX/NOPB?

    The shutdown input pin (nSHDN) is a TTL compatible logic input that switches the device to a low power standby mode when pulled below 1.5V, reducing the total supply current to less than 25 µA.

  7. What is the purpose of the dedicated input ground pin (IN_REF) on the LM5110-2MX/NOPB?

    The dedicated input ground pin (IN_REF) allows for single supply or split supply configurations and provides negative drive capability.

  8. Can the LM5110-2MX/NOPB be used in motor control applications?
  9. Is the LM5110-2MX/NOPB suitable for high-efficiency LED drivers?
  10. What is the thermal resistance of the LM5110-2MX/NOPB in the SOIC-8 package?

    The junction-to-ambient thermal resistance for the SOIC-8 package is 114 °C/W.

Product Attributes

Driven Configuration:Low-Side
Channel Type:Independent
Number of Drivers:2
Gate Type:N-Channel MOSFET
Voltage - Supply:3.5V ~ 14V
Logic Voltage - VIL, VIH:0.8V, 2.2V
Current - Peak Output (Source, Sink):3A, 5A
Input Type:Inverting
High Side Voltage - Max (Bootstrap):- 
Rise / Fall Time (Typ):14ns, 12ns
Operating Temperature:-40°C ~ 125°C (TJ)
Mounting Type:Surface Mount
Package / Case:8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:8-SOIC
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Similar Products

Part Number LM5110-2MX/NOPB LM5111-2MX/NOPB LM5110-3MX/NOPB LM5110-1MX/NOPB LM5110-2M/NOPB
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active Active Active
Driven Configuration Low-Side Low-Side Low-Side Low-Side Low-Side
Channel Type Independent Independent Independent Independent Independent
Number of Drivers 2 2 2 2 2
Gate Type N-Channel MOSFET N-Channel MOSFET N-Channel MOSFET N-Channel MOSFET N-Channel MOSFET
Voltage - Supply 3.5V ~ 14V 3.5V ~ 14V 3.5V ~ 14V 3.5V ~ 14V 3.5V ~ 14V
Logic Voltage - VIL, VIH 0.8V, 2.2V 0.8V, 2.2V 0.8V, 2.2V 0.8V, 2.2V 0.8V, 2.2V
Current - Peak Output (Source, Sink) 3A, 5A 3A, 5A 3A, 5A 3A, 5A 3A, 5A
Input Type Inverting Inverting Inverting, Non-Inverting Non-Inverting Inverting
High Side Voltage - Max (Bootstrap) - - - - -
Rise / Fall Time (Typ) 14ns, 12ns 14ns, 12ns 14ns, 12ns 14ns, 12ns 14ns, 12ns
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC 8-SOIC 8-SOIC 8-SOIC 8-SOIC

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