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UCD7100

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Digital Control Compatible Single Low-Side +/- 4Amp MOSFET Driver with Current Sense

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Data sheet

UCD7100

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Power switch IGBT, MOSFET Peak output current (A) 4 Input supply voltage (min) (V) 4.25 Input supply voltage (max) (V) 14.5 Features Digital output alerts MCU when current limit is reached, Integrated programmable current sense Operating temperature range (°C) -40 to 105 Rise time (ns) 10 Fall time (ns) 10 Propagation delay time (µs) 0.02 Input threshold CMOS, TTL Channel input logic TTL Input negative voltage (V) -0.3 Rating Catalog Undervoltage lockout (typ) (V) 4.5 Driver configuration Single, Uncommitted Non-Inverting
Number of channels 1 Power switch IGBT, MOSFET Peak output current (A) 4 Input supply voltage (min) (V) 4.25 Input supply voltage (max) (V) 14.5 Features Digital output alerts MCU when current limit is reached, Integrated programmable current sense Operating temperature range (°C) -40 to 105 Rise time (ns) 10 Fall time (ns) 10 Propagation delay time (µs) 0.02 Input threshold CMOS, TTL Channel input logic TTL Input negative voltage (V) -0.3 Rating Catalog Undervoltage lockout (typ) (V) 4.5 Driver configuration Single, Uncommitted Non-Inverting
HTSSOP (PWP) 14 32 mm² 5 x 6.4
  • Adjustable current limit protection
  • 3.3-V, 10-mA internal regulator
  • DSP/µC compatible inputs
  • Single ±4-A TrueDrive™high current driver
  • 10-ns typical rise and fall times with 2.2-nF loads
  • 25-ns input-to-output propagation delay
  • 25-ns current sense to output delay
  • Programmable current limit threshold
  • Digital output current limit flag
  • 4.5-V to 15-V supply voltage range
  • Rated from –40°C to 105°C
  • Lead(Pb)-free packaging
  • Adjustable current limit protection
  • 3.3-V, 10-mA internal regulator
  • DSP/µC compatible inputs
  • Single ±4-A TrueDrive™high current driver
  • 10-ns typical rise and fall times with 2.2-nF loads
  • 25-ns input-to-output propagation delay
  • 25-ns current sense to output delay
  • Programmable current limit threshold
  • Digital output current limit flag
  • 4.5-V to 15-V supply voltage range
  • Rated from –40°C to 105°C
  • Lead(Pb)-free packaging

The UCD7100 device is part of the UCD7K family of digital control compatible drivers for applications that use digital control technology that requires fast local peak current limit protection.

The UCD7100 is a low-side ±4-A high-current MOSFET gate driver. It allows the digital power controllers such as UCD9110 or UCD9501 to interface to the power stage in single ended topologies. It provides a cycle-by-cycle current limit function with programmable threshold and a digital output current limit flag which can be monitored by the host controller. With a fast 25-ns cycle-by-cycle current limit protection, the driver can turn off the power stage in the unlikely event that the digital system can not respond to a failure situation in time.

The UCD7100 device is part of the UCD7K family of digital control compatible drivers for applications that use digital control technology that requires fast local peak current limit protection.

The UCD7100 is a low-side ±4-A high-current MOSFET gate driver. It allows the digital power controllers such as UCD9110 or UCD9501 to interface to the power stage in single ended topologies. It provides a cycle-by-cycle current limit function with programmable threshold and a digital output current limit flag which can be monitored by the host controller. With a fast 25-ns cycle-by-cycle current limit protection, the driver can turn off the power stage in the unlikely event that the digital system can not respond to a failure situation in time.
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Technical documentation

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Type Title Date
* Data sheet UCD7100 Digital Control Compatible Single Low-Side ±4-A MOSFET Driver with Current Sense datasheet (Rev. E) PDF | HTML 08 Nov 2021
Application note Review of Different Power Factor Correction (PFC) Topologies' Gate Driver Needs PDF | HTML 22 Jan 2024
Application note Using a Single-Output Gate-Driver for High-Side or Low-Side Drive (Rev. B) PDF | HTML 08 Sep 2023
Application brief External Gate Resistor Selection Guide (Rev. A) 28 Feb 2020
Application brief Understanding Peak IOH and IOL Currents (Rev. A) 28 Feb 2020
Application brief How to overcome negative voltage transients on low-side gate drivers' inputs 18 Jan 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application brief Low-Side Gate Drivers With UVLO Versus BJT Totem-Pole 16 Mar 2018

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UCD7100 PSpice Transient Model (Rev. B)

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Simulation model

UCD7100 Unencrypted PSpice Transient Model (Rev. B)

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