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SGM48545

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Single High-Speed, Low-Side Gate Driver with Negative Input Voltage Capability

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The SGM48541/2/3/4/5 are single high-speed low-side gate drivers for Power MOSFET switches. These devices can provide rail-to-rail driving capability and very small propagation delays (17.5ns, TYP). They also provide 4A peak source current and 8A peak sink current (asymmetrical drive) when VDD = 12V. The input can withstand a maximum negative voltage of -10V.

The operating voltage range is 4.5V to 25V. The devices feature under-voltage lockout (UVLO) function. After UVLO is triggered, the output remains low.

The SGM48541 adopts separate output architecture. The separate output structure with asymmetric drive improves the immunity of the device to the parasitic Miller conduction effect and reduces ground bounce.

The SGM48541/4 adopt a dual-input design. IN+ or IN- can independently control the output of the driver. The unused pin can be functioned as an enable control pin. In order to ensure that the output remains low when an input pin is floating, these input pins have internal pull-up and pull-down resistors.

The input thresholds of these devices are compatible with low voltage TTL and CMOS logic, which will not be affected by VDD changes. A Schmitt trigger is used at the input, and a wide range of hysteresis voltage is designed to enhance the immunity.

The SGM48541 is available in Green SOT-23-6 and TDFN-3×3-6AL packages. The SGM48542/3/4/5 are all available in a Green SOT-23-5 package.

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FEATURES
  • Asymmetrical Drive

    4A Peak Source Current

    8A Peak Sink Current

  • TTL and CMOS Compatible Logic Threshold

  • Logic Levels Independent of Supply Voltage

  • Hysteretic Input Logic for High Noise Immunity

  • Outputs are Logic Low when Inputs are Floating

  • Negative Voltage Handling Capability:

    -10V DC at Inputs

    -2V, 200ns Pulse for Outputs

  • Glitch-Free Operation at Power-Up and Power-Down: Outputs are Pulled Low during Supply UVLO

  • Fast Propagation Delays: 17.5ns (TYP)

  • Fast Rise Time: 7ns (TYP)

  • Fast Fall Time: 6.5ns (TYP)

  • Input Pin Absolute Maximum Voltage Levels Not Restricted by VDD Pin Bias Supply Voltage

  • -40 to +140 Operating Temperature Range

  • Available in a Green SOT-23-5 Package

APPLICATIONS

Power MOSFETs Driving for Power Supplies

DC/DC Converters

Solar Power, Motor Drivers

Ordering Information
Part Number
StatusPackagePinsPd-Free
RoHS
REACH
Green
MSL RatingOperating Temperature RangeMaterial ContentReliability Report
Unit Resale Price*
(Volume Range: in USD)
Lead Time**
(Volume Range: Days)
SGM48545XN5G/TR
Active
SOT-23-5
5
Yes
YesYesYesMSL1
-40℃ to +140℃
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* The unit resale price is for reference purposes only. Please contact our distributors for a formal quotation.

** The lead time provided is for reference purposes only and is subject to change based on different circumstances.

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SG Micro Corp (SGMICRO) specializes in the development, manufacturing and sales of high-performance and high-reliability integrated circuits for analog signal conditioning and system power management, offering innovative solutions to a broad range of applications in the industrial, automotive, communication, computing, consumer electronics, and medical equipment markets.
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