MCP1416T-E/OT vs MCP1402T-E/OT: Gate Driver IC Comparison
Quick verdict
For applications requiring fast, high-current gate drive—such as driving large MOSFETs or IGBTs in power stages with tight switching speed constraints—the MCP1416T-E/OT’s 1.5A source/sink capability makes it the preferred choice. In contrast, the MCP1402T-E/OT’s 500mA output current and slightly faster fall time offer a lower-power, potentially more thermally efficient option suited for moderate gate charge devices or cost-sensitive designs.
Spec comparison table
| Spec | MCP1416T-E/OT | MCP1402T-E/OT | Notes |
|---|---|---|---|
| Channel type | Single | Single | Equivalent for typical low-side drive applications |
| Current peak output source | 1.5 A | 0.5 A | MCP1416T-E/OT provides 3× higher peak drive current, enabling faster switching of large gates |
| Current peak output sink | 1.5 A | 0.5 A | Same as above; stronger sink current improves gate discharge speed |
| Driven configuration | Low-Side | Low-Side | Equivalent |
| Gate types supported | IGBT, MOSFET (N/P) | IGBT, MOSFET (N/P) | Equivalent |
| Input type | Non-Inverting | Non-Inverting | Equivalent |
| Logic voltage VIL / VIH | 0.8 V / 2.4 V | 0.8 V / 2.4 V | Equivalent; compatible logic thresholds for 3.3V and 5V MCU interfaces |
| Mounting type | Surface Mount | Surface Mount | Equivalent |
| Number of drivers | 1 | 1 | Equivalent |
| Operating temperature range | -40°C to 150°C (TJ) | -40°C to 150°C (TJ) | Equivalent; suitable for industrial and automotive-grade environments |
| Package / case | SC-74A, SOT-753 (SOT-23-5) | SC-74A, SOT-753 (SOT-23-5) | Equivalent footprint and package |
| Rise time (typical) | 20 ns | 19 ns | MCP1402T-E/OT marginally faster rise time; negligible practical difference |
| Fall time (typical) | 20 ns | 15 ns | MCP1402T-E/OT faster fall time by 5 ns may improve turn-off switching speed slightly |
| Voltage supply range | 4.5 V to 18 V | 4.5 V to 18 V | Equivalent; flexible supply voltage range |
Design trade-offs
The primary differentiator between these two drivers is the peak output current capability. The MCP1416T-E/OT can source and sink up to 1.5A, which is triple the MCP1402T-E/OT’s 0.5A rating. This translates directly into faster charge and discharge of MOSFET or IGBT gates with large gate charge (Qg). In high-frequency switching applications or designs with large power transistors, this higher current reduces switching losses and improves efficiency by enabling sharper gate transitions.
However, this increased drive strength comes with trade-offs. Higher peak currents mean higher instantaneous supply current and potentially increased switching noise and electromagnetic interference (EMI). The MCP1416T-E/OT may require more careful PCB layout, including short, low-inductance gate traces and solid ground referencing to avoid ringing and overshoot. Thermal dissipation is also a consideration; driving large gates at high frequency with strong peak currents will generate more heat in the driver IC, requiring attention to junction temperature and possibly derating in continuous operation.
The MCP1402T-E/OT, with its 500mA peak current, is better suited for smaller MOSFETs or IGBTs with lower gate charge, or applications where switching speed is less aggressive. Its slightly faster fall time (15 ns vs 20 ns) can marginally improve turn-off times, which may benefit circuits sensitive to reverse recovery or switching losses on turn-off. Lower peak current also reduces EMI and can simplify layout by relaxing gate drive trace requirements.
From a cost perspective, while exact pricing is not listed here, the MCP1402T-E/OT is generally positioned as a lower-current, lower-cost alternative to the MCP1416T-E/OT. For volume production, this can translate into meaningful savings if the higher current drive is not necessary.
Both devices share the same supply voltage range (4.5 to 18 V) and logic input thresholds, making them compatible with typical 3.3V/5V logic systems without level shifting. Their identical package and pin count (SOT-23-5) facilitate potential substitution, though layout and thermal conditions should be reviewed.
Use-case fit
Choose MCP1416T-E/OT when…
- Driving large power MOSFETs or IGBTs with gate charges above ~50 nC at switching frequencies above 100 kHz, where fast gate transitions reduce switching losses.
- Applications requiring robust gate drive under high dV/dt conditions, such as synchronous buck converters or motor drives with large MOSFETs.
- Circuits with tight timing requirements where rise and fall times below 20 ns are critical to minimizing dead time and improving efficiency.
- Designs where the PCB layout can accommodate the higher peak currents with careful gate drive trace routing and EMI mitigation.
- Automotive or industrial environments demanding wide temperature operation with high transient drive capability.
Choose MCP1402T-E/OT when…
- Driving small to medium MOSFETs or IGBTs with gate charges below ~20 nC, where 500mA peak drive current is sufficient.
- Cost-sensitive designs where the lower output current driver reduces BOM cost without compromising switching performance.
- Applications where lower EMI and simpler PCB layout are priorities, and switching speeds can be relaxed slightly.
- Lower frequency switching converters (e.g., <100 kHz) or non-critical timing applications where marginally faster fall time may reduce turn-off losses.
- Designs with tight space constraints where the common SOT-23-5 package and moderate thermal dissipation make the MCP1402T-E/OT more practical.
Drop-in compatibility
Both MCP1416T-E/OT and MCP1402T-E/OT are single-channel, low-side, non-inverting gate drivers in the same SOT-23-5 package with identical pinouts (SC-74A / SOT-753). This makes them pin- and footprint-compatible for direct substitution on a PCB.
However, substituting MCP1416T-E/OT for MCP1402T-E/OT may require reviewing the PCB layout for gate trace inductance and possible EMI mitigation due to higher peak currents. Conversely, substituting MCP1402T-E/OT for MCP1416T-E/OT risks insufficient gate drive current, leading to slower transitions, higher switching losses, or incomplete MOSFET turn-on in demanding applications.
No explicit documentation states guaranteed drop-in replacement, so verification in the target application is recommended before substituting in production.
Alternatives to consider
- MIC4452 (Microchip) — Higher current (up to 6A) single-channel driver, suitable for very large MOSFETs or IGBTs requiring aggressive switching.
- UCC37322 (Texas Instruments) — Single-channel, 3A peak output driver with similar voltage range; a popular alternative for mid-to-high power gate drive.
- TC4420 (Microchip) — 1.5A peak current driver in a slightly larger SOIC-8 package, offering ease of handling and better thermal dissipation for similar drive strength.