MCP1402T-E/OT vs ZXGD3006E6TA: Low-Side Gate Driver IC Comparison

Quick verdict

For low-voltage, low-current MOSFET or IGBT gate drive in compact, thermally constrained applications, the MCP1402T-E/OT offers faster switching (rise/fall times <20ns) and a smaller package footprint, making it suitable for general-purpose low-side drive below 500mA peak. For high-current gate drive scenarios requiring up to 10A peak output, such as SiC MOSFET or IGBT gate driving in automotive or industrial environments, the ZXGD3006E6TA is the clear choice due to its much higher peak current capacity and automotive-grade qualification.

Spec comparison table

SpecMCP1402T-E/OTZXGD3006E6TANotes
Channel typeSingleSingleEquivalent
Current peak output source/sink500mA / 500mA10A / 10AZXGD3006E6TA supports 20x higher peak current, critical for large gate charge devices
Driven configurationLow-SideLow-SideEquivalent
Gate typeIGBT, MOSFET (N- and P-)IGBT, SiC MOSFETZXGD3006E6TA targets SiC MOSFETs explicitly, indicating suitability for wide bandgap devices
Input typeNon-InvertingNon-InvertingEquivalent
Logic voltage V_IL / V_IH0.8V / 2.4VNot specifiedMCP1402T-E/OT logic thresholds documented; ZXGD3006E6TA’s input thresholds undocumented
Supply voltage range4.5V to 18VUp to 40VZXGD3006E6TA supports higher supply voltage, enabling wider application range
Operating temperature range-40°C to 150°C (TJ)-55°C to 150°C (TJ)ZXGD3006E6TA wider low-temp range (-55°C vs -40°C)
Package caseSC-74A (SOT-23-5)SOT-23-6MCP1402T-E/OT smaller 5-pin vs ZXGD3006E6TA’s 6-pin; footprint differences
Typical rise time19 ns48 nsMCP1402T-E/OT switches over 2x faster, better for high-frequency switching
Typical fall time15 ns35 nsMCP1402T-E/OT faster fall time
Peak pulsed output current maxNot specified±10AZXGD3006E6TA supports very high peak pulsed currents
Quiescent supply current maxNot specified (likely low)50 nAZXGD3006E6TA has near-zero quiescent current, good for standby power savings
Propagation delay time maxNot specified<10 nsZXGD3006E6TA offers very low delay
Input resistanceNot specified200Ω (min) to 1MΩ (typ)ZXGD3006E6TA’s input resistance range indicates flexibility in input drive requirements
Input current minNot specified1 mAZXGD3006E6TA requires minimal input current
Thermal resistance junction-to-ambient maxNot specified113 °C/WZXGD3006E6TA thermal resistance provided; high value implies need for careful thermal design
Power dissipation maxNot specified1.1 WZXGD3006E6TA max dissipation much higher, consistent with high output current
ESD ratings (HBM/CDM)Not specified1500 V / 1000 VZXGD3006E6TA rated for automotive-level ESD protection
Moisture sensitivity levelNot specifiedLevel 1 (J-STD-020)ZXGD3006E6TA is moisture resistant, easing assembly handling
Halogen free / RoHSNot specifiedHalogen and Antimony FreeZXGD3006E6TA meets environmental compliance
WeightNot specified0.018 gZXGD3006E6TA weight provided; likely similar for MCP1402T-E/OT

Design trade-offs

The most striking difference between the MCP1402T-E/OT and the ZXGD3006E6TA is the peak output current capability: 500mA versus 10A. This difference is not trivial — it determines what kinds of power switches you can drive directly without additional buffering. The MCP1402T-E/OT can comfortably drive small- to medium-sized MOSFETs or IGBTs with gate charges in the few tens of nanocoulombs range. The ZXGD3006E6TA, on the other hand, is designed to handle the large gate charges of IGBTs and wide-bandgap SiC MOSFETs, which can exceed 100nC, requiring fast, high-current pulses to switch efficiently.

Switching speed is another consideration. The MCP1402T-E/OT offers substantially faster rise and fall times (typical 19ns rise, 15ns fall) compared to the ZXGD3006E6TA (48ns rise, 35ns fall). This means the MCP1402T-E/OT can reduce switching losses in applications where gate charge is moderate, and switching frequency is high. However, the ZXGD3006E6TA’s slower switching is a trade-off for its higher current capability and robustness.

Thermal management must be more rigorous with the ZXGD3006E6TA due to its higher power dissipation (up to 1.1W) and higher thermal resistance junction-to-ambient (113°C/W). This typically requires PCB copper area for heat sinking or additional thermal vias. The MCP1402T-E/OT’s thermal specs are not explicitly provided but given its lower current and power dissipation, thermal design is simpler, making it better for compact, thermally constrained boards.

Input logic levels and drive requirements differ: MCP1402T-E/OT specifies logic thresholds (0.8V low, 2.4V high) compatible with standard 3.3V or 5V logic, while ZXGD3006E6TA does not specify these, but its input resistance and minimal input current (1mA) suggest it can interface with a range of logic levels and drive strengths. This may affect interface design, especially if the upstream controller has limited drive capability.

Package and footprint differences affect PCB layout. The MCP1402T-E/OT’s 5-pin SOT-23-5 package is smaller and simpler, suitable for tight layouts. The ZXGD3006E6TA’s 6-pin SOT-23-6 package is slightly larger and may require more PCB area. Also, the lack of pin compatibility means direct substitution requires board redesign.

Cost at volume is not provided but generally, higher current, automotive-qualified parts like ZXGD3006E6TA command a price premium compared to simpler drivers like MCP1402T-E/OT. This cost difference is justified only if the application requires the higher current or automotive qualification.

Use-case fit

Choose MCP1402T-E/OT when…

Choose ZXGD3006E6TA when…

Drop-in compatibility

These devices are not pin-compatible or footprint-compatible. The MCP1402T-E/OT uses a 5-pin SOT-23-5 package, while the ZXGD3006E6TA comes in a 6-pin SOT-23-6 package. Pin assignments and package outlines differ significantly, so substituting one for the other requires PCB redesign and verification of input/output connections. Signal logic and input thresholds also differ, so firmware or control logic adjustments may be necessary.

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