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UCC27511

ACTIVE

4-A/8-A single-channel gate driver with 5-V UVLO, split outputs, and 13-ns Prop delay

Product details

Number of channels 1 Power switch GaNFET, IGBT, MOSFET Peak output current (A) 8 Input supply voltage (min) (V) 4.5 Input supply voltage (max) (V) 18 Features Split Output Operating temperature range (°C) -40 to 140 Rise time (ns) 9 Fall time (ns) 7 Propagation delay time (µs) 0.013 Input threshold CMOS, TTL Channel input logic Inverting, Non-Inverting Input negative voltage (V) 0 Rating Catalog Undervoltage lockout (typ) (V) 4 Driver configuration Inverting, Non-Inverting
Number of channels 1 Power switch GaNFET, IGBT, MOSFET Peak output current (A) 8 Input supply voltage (min) (V) 4.5 Input supply voltage (max) (V) 18 Features Split Output Operating temperature range (°C) -40 to 140 Rise time (ns) 9 Fall time (ns) 7 Propagation delay time (µs) 0.013 Input threshold CMOS, TTL Channel input logic Inverting, Non-Inverting Input negative voltage (V) 0 Rating Catalog Undervoltage lockout (typ) (V) 4 Driver configuration Inverting, Non-Inverting
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8
  • Low-Cost Gate-Driver Device Offering Superior
    Replacement of NPN and PNP Discrete Solutions
  • 4-A Peak Source and 8-A Peak Sink Asymmetrical
    Drive
  • Strong Sink Current Offers Enhanced Immunity
    Against Miller Turnon
  • Split Output Configuration (Allows Easy and
    Independent Adjustment of Turnon and Turnoff
    Speeds) in the UCC27511 Saves 1 Diode
  • Fast Propagation Delays (13-ns Typical)
  • Fast Rise and Fall Times (9-ns and 7-ns Typical)
  • 4.5-V to 18-V Single Supply Range
  • Outputs Held Low During VDD UVLO (Ensures
    Glitch-Free Operation at Power Up and Power
    Down)
  • TTL and CMOS Compatible Input-Logic Threshold
    (Independent of Supply Voltage)
  • Hysteretic-Logic Thresholds for High-Noise
    Immunity
  • Dual-Input Design (Choice of an Inverting
    (IN– Pin) or Noninverting (IN+ Pin)
    Driver Configuration)
    • Unused Input Pin can be Used for Enable or
      Disable Function
  • Output Held Low When Input Pins Are Floating
  • Input Pin Absolute Maximum Voltage Levels Not
    Restricted by VDD Pin Bias Supply Voltage
  • Operating Temperature Range of –40°C
    to 140°C
  • 6-Pin DBV (SOT-23) and 6-Pin DRS (3-mm ×
    3-mm WSON With Exposed Thermal Pad) Package
    Options
  • Low-Cost Gate-Driver Device Offering Superior
    Replacement of NPN and PNP Discrete Solutions
  • 4-A Peak Source and 8-A Peak Sink Asymmetrical
    Drive
  • Strong Sink Current Offers Enhanced Immunity
    Against Miller Turnon
  • Split Output Configuration (Allows Easy and
    Independent Adjustment of Turnon and Turnoff
    Speeds) in the UCC27511 Saves 1 Diode
  • Fast Propagation Delays (13-ns Typical)
  • Fast Rise and Fall Times (9-ns and 7-ns Typical)
  • 4.5-V to 18-V Single Supply Range
  • Outputs Held Low During VDD UVLO (Ensures
    Glitch-Free Operation at Power Up and Power
    Down)
  • TTL and CMOS Compatible Input-Logic Threshold
    (Independent of Supply Voltage)
  • Hysteretic-Logic Thresholds for High-Noise
    Immunity
  • Dual-Input Design (Choice of an Inverting
    (IN– Pin) or Noninverting (IN+ Pin)
    Driver Configuration)
    • Unused Input Pin can be Used for Enable or
      Disable Function
  • Output Held Low When Input Pins Are Floating
  • Input Pin Absolute Maximum Voltage Levels Not
    Restricted by VDD Pin Bias Supply Voltage
  • Operating Temperature Range of –40°C
    to 140°C
  • 6-Pin DBV (SOT-23) and 6-Pin DRS (3-mm ×
    3-mm WSON With Exposed Thermal Pad) Package
    Options

The UCC27511 and UCC27512 single-channel, high-speed, low-side gate-driver device can effectively drive MOSFET and IGBT power switches. Using a design that inherently minimizes shoot-through current, UCC27511 and UCC27512 are capable of sourcing and sinking high peak-current pulses into capacitive loads offering rail-to-rail drive capability and extremely small propagation delay, typically 13 ns.

UCC27511 features a dual-input design which offers flexibility of implementing both inverting (IN– pin) and noninverting (IN+ pin) configuration with the same device. Either IN+ or IN– pin can be used to control the state of the driver output. The unused input pin can be used for enable and disable functions. For safety purpose, internal pullup and pulldown resistors on the input pins ensure that outputs are held low when input pins are in floating condition. Hence the unused input pin is not left floating and must be properly biased to ensure that driver output is in enabled for normal operation.

The input pin threshold of the UCC27511 device is based on TTL and CMOS-compatible low-voltage logic which is fixed and independent of the VDD supply voltage. Wide hysteresis between the high and low thresholds offers excellent noise immunity.

The UCC27511 and UCC27512 provides 4-A source, 8-A sink (asymmetrical drive) peak-drive current capability. Strong sink capability in asymmetrical drive boosts immunity against parasitic, Miller turnon effect. The UCC27511 device also features a unique split output configuration where the gate-drive current is sourced through OUTH pin and sunk through OUTL pin. This unique pin arrangement allows the user to apply independent turnon and turnoff resistors to the OUTH and OUTL pins respectively and easily control the switching slew rates.

UCC27511 and UCC27512 are designed to operate over a wide VDD range of 4.5 to 18 V and wide temperature range of –40°C to 140°C. Internal Undervoltage Lockout (UVLO) circuitry on VDD pin holds output low outside VDD operating range. The capability to operate at low voltage levels such as below 5 V, along with best-in-class switching characteristics, is especially suited for driving emerging wide band-gap power-switching devices such as GaN power-semiconductor devices.

The UCC27511 and UCC27512 single-channel, high-speed, low-side gate-driver device can effectively drive MOSFET and IGBT power switches. Using a design that inherently minimizes shoot-through current, UCC27511 and UCC27512 are capable of sourcing and sinking high peak-current pulses into capacitive loads offering rail-to-rail drive capability and extremely small propagation delay, typically 13 ns.

UCC27511 features a dual-input design which offers flexibility of implementing both inverting (IN– pin) and noninverting (IN+ pin) configuration with the same device. Either IN+ or IN– pin can be used to control the state of the driver output. The unused input pin can be used for enable and disable functions. For safety purpose, internal pullup and pulldown resistors on the input pins ensure that outputs are held low when input pins are in floating condition. Hence the unused input pin is not left floating and must be properly biased to ensure that driver output is in enabled for normal operation.

The input pin threshold of the UCC27511 device is based on TTL and CMOS-compatible low-voltage logic which is fixed and independent of the VDD supply voltage. Wide hysteresis between the high and low thresholds offers excellent noise immunity.

The UCC27511 and UCC27512 provides 4-A source, 8-A sink (asymmetrical drive) peak-drive current capability. Strong sink capability in asymmetrical drive boosts immunity against parasitic, Miller turnon effect. The UCC27511 device also features a unique split output configuration where the gate-drive current is sourced through OUTH pin and sunk through OUTL pin. This unique pin arrangement allows the user to apply independent turnon and turnoff resistors to the OUTH and OUTL pins respectively and easily control the switching slew rates.

UCC27511 and UCC27512 are designed to operate over a wide VDD range of 4.5 to 18 V and wide temperature range of –40°C to 140°C. Internal Undervoltage Lockout (UVLO) circuitry on VDD pin holds output low outside VDD operating range. The capability to operate at low voltage levels such as below 5 V, along with best-in-class switching characteristics, is especially suited for driving emerging wide band-gap power-switching devices such as GaN power-semiconductor devices.

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Drop-in replacement with upgraded functionality to the compared device
UCC27511A ACTIVE 4-A/8-A single-channel gate driver with 5-V UVLO, split outputs, 5-V IN handling This product is able to handle -5 V on its inputs, but otherwise is the exact same device.

Technical documentation

Design & development

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Simulation model

UCC27511 PSpice Transient Model (Rev. B)

SLUM283B.ZIP (48 KB) - PSpice Model
Simulation model

UCC27511 Unencrypted PSpice Transient Model

SLUM488.ZIP (2 KB) - PSpice Model
Calculation tool

SLURB27 UCC27511 and UCC27512 Schematic Review Template

Supported products & hardware

Supported products & hardware

Products
Low-side drivers
UCC27511 4-A/8-A single-channel gate driver with 5-V UVLO, split outputs, and 13-ns Prop delay UCC27512 4-A/8-A single-channel gate driver with 5-V UVLO and split outputs in SON package
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SOT-23 (DBV) 6 Ultra Librarian

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