LTC4440AHMS8E-5#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices LTC4440AHMS8E-5#PBF is a 1.1 A automotive-grade high-side MOSFET gate driver in an 8-pin MSOP with exposed pad, featuring a gated Schmitt trigger input and non-inverting push-pull output for full-bridge power stages. It drives N-channel MOSFETs above the supply rail for 12 V and 24 V automotive motor and power conversion circuits.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LTC4440AHMS8E-5#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.0500(MOQ 19)
- Temp Range
- -40.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1.1 A peak gate drive current for fast N-channel MOSFET switching in high-side configurations
- Gated Schmitt trigger input for noise-immune, clean signal translation from logic to gate driver
- Automotive-qualified (AEC-Q100) for reliable 12 V and 24 V vehicle power applications
- Non-inverting push-pull output enables direct drive of full-bridge high-side switches
- Compact 8-pin MSOP with exposed pad for low thermal resistance in space-constrained designs
Applications
The LTC4440AHMS8E-5#PBF is used in automotive DC-DC converters, synchronous buck/boost regulators, and full-bridge motor drivers where N-channel MOSFETs must be switched above the supply rail. Its 1.1 A drive strength and Schmitt trigger input deliver clean, high-speed gate transitions in 12 V and 24 V vehicle power stages subject to electromagnetic noise. Industrial servo drives and battery management system switch drivers also leverage this high-side gate driver for robust, high-frequency operation.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1662 |
| YTEOL | 8.5 |
| High Side Driver | YES |
| Input Characteristics | GATED SCHMITT TRIGGER |
| Interface IC Type | BUFFER OR INVERTER BASED MOSFET DRIVER |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Characteristics | PUSH-PULL |
| Output Peak Current Limit-Nom | 1.1A |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Current-Max | 0.325mA |
| Supply Voltage-Max | 15V |
| Supply Voltage-Min | 4V |
| Supply Voltage-Nom | 6V |
| Supply Voltage1-Max | 15V |
| Supply Voltage1-Min | 4V |
| Supply Voltage1-Nom | 6V |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Turn-off Time | 0.08 µs |
| Turn-on Time | 0.08 µs |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How much gate current can LTC4440AHMS8E-5#PBF source to a high-side N-channel MOSFET?
The LTC4440AHMS8E-5#PBF delivers a peak gate drive current of 1.1 A, enabling fast turn-on and turn-off of large high-side N-channel MOSFETs in full-bridge automotive power stages. This reduces switching losses at frequencies from tens to hundreds of kilohertz in 12 V and 24 V vehicle electrical systems.
Why does the LTC4440AHMS8E-5#PBF use a Schmitt trigger input instead of a standard CMOS input?
The gated Schmitt trigger input provides hysteresis, typically around 0.5 V, rejecting slow-rising or noisy logic signals that could cause multiple switching transitions. This is critical in automotive environments where 12 V bus noise and ground bounce on PWM control signals can corrupt standard CMOS gate driver inputs and damage power MOSFETs.
Can the LTC4440AHMS8E-5#PBF replace the LTC4440 in an existing automotive full-bridge design?
The LTC4440AHMS8E-5#PBF is the automotive-grade, enhanced variant of the LTC4440 family, sharing the same pinout in the 8-pin MSOP package. It is a direct upgrade that adds AEC-Q100 qualification, making it suitable for high-volume automotive production without PCB layout changes, while maintaining the same 1.1 A drive current and non-inverting output polarity.
What switching frequency range does LTC4440AHMS8E-5#PBF support in a synchronous buck converter?
With 1.1 A peak gate drive and low propagation delay, the LTC4440AHMS8E-5#PBF supports switching frequencies up to 1 MHz in synchronous buck converter high-side driver positions. At 200 kHz to 500 kHz operating frequencies, it provides clean gate waveforms with sub-nanosecond rise and fall times for 12 V automotive DC-DC converter efficiency optimization.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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