SM74101SDX/NOPB Texas Instruments Integrated Circuit (Small Outline No-lead) In Stock
The SM74101SDX/NOPB is a single-channel MOSFET gate driver capable of 3 A source and 7 A sink peak output currents, designed for split-supply operation with a dedicated input ground reference. It features a Schmitt-trigger input for noise-immune PWM signal acceptance and a totem-pole output stage for fast gate charge and discharge. Housed in a 6-pin SOT-23-style no-lead package, it drives power MOSFETs and IGBTs in DC-DC converters, motor drivers, and synchronous rectifier circuits.
- Manufacturer
- Texas Instruments
- Package
- Small Outline No-lead
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- SM74101SDX/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6634(MOQ 500)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SM74101SDX/NOPB?
- 3 A source / 7 A sink peak gate drive current for fast MOSFET switching
- Split-supply architecture with separate input ground for level shifting
- Schmitt-trigger input for noise-immune PWM signal acceptance
- Totem-pole output for symmetric gate charge and discharge
- Single-channel design in a compact 6-pin no-lead package
- Enables low-side gate driving in high-frequency DC-DC converters
What is SM74101SDX/NOPB used for?
The SM74101SDX/NOPB is used as a low-side MOSFET gate driver in synchronous buck and boost DC-DC converters where fast 7 A gate discharge is needed to minimise switching losses at frequencies above 100 kHz. Its split-supply input ground connection allows the driver to be controlled from a logic-level PWM signal referenced to a different ground than the power stage, making it well suited for gate drive designs with isolated or level-shifted control paths. Motor control half-bridge driver boards and synchronous rectifier circuits also use this device to drive large low-side switches efficiently at switching frequencies up to several hundred kilohertz.
What are the specifications of SM74101SDX/NOPB?
| Pbfree Code | Yes |
| YTEOL | 15 |
| High Side Driver | NO |
| Input Characteristics | SCHMITT TRIGGER |
| Interface IC Type | BUFFER OR INVERTER BASED MOSFET DRIVER |
| JESD-30 Code | S-PDSO-N6 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Output Characteristics | TOTEM-POLE |
| Output Current-Max | 7A |
| Output Peak Current Limit-Nom | 7A |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC6,.12,38 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 2mA |
| Supply Voltage-Max | 14V |
| Supply Voltage-Min | 3.5V |
| Supply Voltage-Nom | 12V |
| Surface Mount | YES |
| Technology | BCDMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Turn-off Time | 0.04 µs |
| Turn-on Time | 0.04 µs |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the SM74101SDX/NOPB datasheet?
SM74101SDX/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SM74101SDX/NOPB?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the peak source and sink gate drive currents of SM74101SDX/NOPB?
The SM74101SDX/NOPB delivers 3 A peak source current and 7 A peak sink current. The asymmetric drive capability is intentional: the faster 7 A turn-off quickly discharges the MOSFET gate to minimise shoot-through risk in synchronous converter topologies switching at 100 kHz or above.
How does the split-supply input ground feature of SM74101SDX/NOPB help in half-bridge gate drive designs?
The device has separate pins for the input signal ground and the power stage ground, allowing the PWM control signal to be referenced to a logic ground while the gate drive output references the MOSFET source node. This eliminates level-shifting circuitry in designs where the control MCU and the power switch share different ground potentials, simplifying PCB layout and reducing component count.
What input signal type does SM74101SDX/NOPB accept, and how does it handle noisy PWM signals?
The input uses a Schmitt-trigger threshold that provides hysteresis, typically 0.5 V to 1 V, ensuring clean output transitions even when the incoming PWM signal has slow edges or superimposed switching noise of tens of millivolts. This is important in high-frequency buck converters where ground bounce and coupled switching noise can cause false triggering on standard TTL-threshold inputs.
For a 48 V to 12 V synchronous buck converter switching at 300 kHz, how does SM74101SDX/NOPB reduce switching losses?
At 300 kHz the gate charge and discharge time directly affects switching losses. The 7 A sink current of SM74101SDX/NOPB can discharge a 20 nC MOSFET gate charge in approximately 3 ns, compared to roughly 20 ns for a 1 A driver. Faster turn-off reduces the cross-conduction period in synchronous pairs, lowering switching energy per cycle and improving converter efficiency by 1 to 3 percentage points at full load.
Which package does SM74101SDX/NOPB use, and what are the thermal implications for high-frequency gate driving?
The device uses a 6-pin small outline no-lead (SON) package with an exposed pad for thermal dissipation. At 3 A average gate drive with a 20 nC gate charge at 500 kHz, the average power dissipation is approximately 10 mW per switching event, so the total driver dissipation remains below 100 mW even at high frequencies, making the compact no-lead package thermally adequate without an external heatsink.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 500+ | $1.2038 | $601.90 |
| 1000+ | $0.8881 | $888.10 |
| 10000+ | $0.7918 | $7918.00 |
| 100000+ | $0.6634 | $66340.00 |
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