MCP1402T-E/OT vs 2SC0435T2H0-17: Gate Driver ICs Compared
Quick verdict
For low-side, single-channel gate drive in low-to-mid power MOSFET or IGBT applications with flexible supply voltage and extended temperature range, the MCP1402T-E/OT is the clear choice due to its simplicity, compact package, and wide voltage range. For high-power, half-bridge or full-bridge topologies requiring both high-side and low-side drivers with very high peak current capability and high-voltage bootstrap tolerance, the 2SC0435T2H0-17 is better suited despite its limited supply voltage range and lower ambient temperature rating.
Spec comparison table
| Spec | MCP1402T-E/OT | 2SC0435T2H0-17 | Notes |
|---|---|---|---|
| Channel type | Single | Independent (2 channels) | 2SC0435T2H0-17 supports half-bridge drive; MCP1402T-E/OT only low-side single channel. |
| Current peak output source/sink | 500mA / 500mA | 35A / 35A | 2SC0435T2H0-17 offers 70x higher peak drive current, critical for fast switching large FETs. |
| Programmable | Not Verified | Not Verified | No programmable features on either device. |
| Driven configuration | Low-Side | High-Side, Low-Side | 2SC0435T2H0-17 supports both high and low side; MCP1402T-E/OT only low side. |
| Gate type compatibility | IGBT, MOSFET (N-, P-Channel) | IGBT, MOSFET (N-, P-Channel) | Equivalent support for common transistor types. |
| Input type | Non-Inverting | Not specified | MCP1402T-E/OT has defined logic polarity; 2SC0435T2H0-17 input logic unspecified. |
| Logic voltage V_IL / V_IH | 0.8V / 2.4V | Not specified | MCP1402T-E/OT suitable for standard 3.3V or 5V logic; unknown for 2SC0435T2H0-17. |
| Mounting type | Surface Mount | Surface Mount | Both designed for SMT assembly. |
| Number of drivers | 1 | 2 | 2SC0435T2H0-17 integrates dual driver channels in one module. |
| Operating temperature range | -40°C to 150°C (TJ) | -40°C to 85°C (TA) | MCP1402T-E/OT supports higher junction temperature, better for harsh environments. |
| Package case | SC-74A, SOT-753 (SOT-23-5) | Module | MCP1402T-E/OT is small discrete IC; 2SC0435T2H0-17 is a larger module, likely more board space. |
| Rise/Fall time (typical) | 19ns / 15ns | 20ns / 20ns | Similar switching speed; MCP1402T-E/OT slightly faster fall time. |
| Voltage supply range | 4.5V to 18V | 14.5V to 15.5V | MCP1402T-E/OT offers wider supply voltage range, more flexible design. |
| High-side voltage max bootstrap | N/A | 1700 V | Only 2SC0435T2H0-17 supports high-side bootstrap up to 1700V, critical for high-voltage half-bridges. |
Design trade-offs
The MCP1402T-E/OT is a minimalist, single low-side driver optimized for driving small to medium power MOSFETs or IGBTs. Its moderate peak drive current of 500mA is sufficient for devices with moderate gate charge (tens of nanocoulombs), but it will struggle to achieve very fast switching on high gate charge devices without external buffering. The wide supply voltage range (4.5V to 18V) allows use in various gate drive voltage domains, including 12V and 15V, with some margin for supply variations. The extended junction temperature rating up to 150°C supports automotive or industrial applications with elevated temperatures, where thermal derating is a concern.
In contrast, the 2SC0435T2H0-17 is a dual-channel gate driver module capable of sourcing and sinking peak currents up to 35A per channel. This level of peak current drive is targeted at high-power MOSFETs and IGBTs in demanding half-bridge or full-bridge configurations, where minimizing switching losses and transition times at high load currents is critical. The integrated high-side driver with a bootstrap voltage rating up to 1700V indicates suitability for high-voltage applications, such as motor drives or power factor correction circuits operating at hundreds of volts DC bus.
However, the 2SC0435T2H0-17’s supply voltage window is narrow (14.5V to 15.5V), limiting flexibility and requiring a tightly regulated gate supply. Its ambient temperature rating of -40°C to 85°C is significantly more restrictive than the MCP1402T-E/OT’s junction rating, which can limit use in high-temperature environments or require additional cooling measures. The module package is physically larger and will consume more PCB area, and the lack of detailed input logic specs means additional validation may be necessary during design.
From a layout perspective, the MCP1402T-E/OT’s small SOT-23-5 package enables compact, low-parasitic gate drive loops, reducing EMI and improving switching performance in sensitive designs. The 2SC0435T2H0-17 module, while integrating both drivers and likely including internal protection and gate resistors, is less flexible for tuning gate drive parameters and may introduce more parasitic inductance due to its size. Thermal dissipation will also be more challenging with the 2SC0435T2H0-17 given its higher current capability and lower max ambient temperature rating.
Cost at volume is not provided here, but generally, integrated dual-driver modules with very high peak current capability and high-voltage bootstrap ratings like the 2SC0435T2H0-17 tend to be more expensive and specialized than a single-channel low-side driver IC like the MCP1402T-E/OT.
Use-case fit
Choose MCP1402T-E/OT when…
- Designing low-side gate drive for N-channel MOSFETs or IGBTs with moderate gate charge (e.g., <50nC) and switching frequencies under 500kHz.
- Operating in environments requiring wide temperature range up to 150°C junction temperature, such as automotive under-hood or industrial motor drives.
- Needing flexible supply voltage options between 4.5V and 18V, allowing use of 12V or 15V gate drive rails with tolerance for supply variation.
- Prioritizing minimal PCB area with a compact SOT-23-5 footprint for space-constrained designs.
- Using simple non-inverting input logic compatible with 3.3V or 5V microcontroller outputs.
Choose 2SC0435T2H0-17 when…
- Driving high-power half-bridge or full-bridge MOSFET/IGBT stages requiring both high-side and low-side gate drivers.
- Fast switching of large gate charge devices (100nC+) needing very high peak drive currents (up to 35A) for minimized switching losses.
- Operating with a tightly regulated 15V gate supply in high-voltage applications, with bootstrap voltages up to 1700V.
- Targeting power stages in power factor correction, motor drives, or DC-DC converters where integrated dual-driver modules simplify design.
- Thermal management and ambient temperature conditions are controlled within -40°C to 85°C.
Drop-in compatibility
These parts are not pin- or footprint-compatible. The MCP1402T-E/OT is a single-channel, low-side driver in a small SOT-23-5 package, while the 2SC0435T2H0-17 is a dual-channel module with integrated high-side and low-side drivers in a much larger module package. Substituting one for the other requires significant schematic and PCB redesign, including power supply arrangements, input logic interface, and thermal management strategy. The input logic voltage levels and supply voltage ranges are not directly compatible either.
Alternatives to consider
- UCC37322 (Texas Instruments): Dual low-side MOSFET driver with 9A peak current, offering a middle ground between MCP1402T-E/OT and 2SC0435T2H0-17.
- IR2110 (Infineon): High- and low-side driver IC for half-bridge configurations with bootstrap support up to 500V; suitable for mid-voltage motor drives.
- MIC4452 (Microchip Technology): Single-channel high-current MOSFET driver with 9A peak current, useful for demanding low-side drive with a small footprint.