規格
| 屬性 | 價值 |
| Package | Tube |
| ProductStatus | Active |
| DrivenConfiguration | Half-Bridge |
| ChannelType | Independent |
| NumberofDrivers | 2 |
| GateType | N-Channel MOSFET |
| Voltage-Supply | 7.2V ~ 13.5V |
| LogicVoltage-VILVIH | 1.85V, 3.25V |
| Current-PeakOutput(SourceSink) | 2.5A, 3A |
| InputType | Non-Inverting |
| HighSideVoltage-Max(Bootstrap) | 114 V |
| Rise/FallTime(Typ) | 8ns, 5ns |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) Exposed Pad |
概述
Description
LTC4446EMS8E#PBF is Linear Technology (Analog Devices)’s dual MOSFET gate-driver IC in an 8‑pin MSOP package. It provides two independent, high‑current outputs to drive N‑channel MOSFETs for bridge configurations (e.g., buck/boost regulators, motor drives, synchronous rectifiers). Features typically include fast turn‑on/turn‑off, undervoltage lockout on both channels, and protection against cross‑conduction in half‑bridge topologies. The EMS8E suffix denotes the MSOP-8 package, and #PBF indicates Pb‑free (RoHS-compliant) packaging. For exact electrical specs (gate-drive voltage, current, UVLO thresholds, pinout), consult the LTC4446EMS8E data sheet.
Equivalent
Direct one-to-one equivalents for LTC4446EMS8E#PBF don’t exist. For similar functionality (dual high/low-side gate driver in an 8-pin MSOP), consider cross references such as TI UCC27201/UCC27202 (or UCC27204) and ON Semiconductor NCP81239. Use LTC’s cross-reference tool or distributor searches and filter by HV rating, drive strength, and protection features to match your design.
Features
Here are the typical features of LTC4446EMS8E#PBF (gate driver):
- Dual high-side and low-side MOSFET gate driver
- Bootstrap high-side drive with independent low-side drive
- Independent HS and LS outputs with fast switching
- Wide operating voltage range with UVLO on VCC and HS
- Shoot-through protection with dead-time control
- Enable input for latch/disable functionality
- Fault/diagnostic reporting (status output)
- Protection features: short-circuit and thermal protection
- Suitable for synchronous buck/boost, motor drives, etc.
- 8-lead EMS8E package; Pb-free (PBF)
Note: For exact electrical specs (voltages, current drive, timing, and pinout), please refer to the LTC4446 datasheet.
- Dual high-side and low-side MOSFET gate driver
- Bootstrap high-side drive with independent low-side drive
- Independent HS and LS outputs with fast switching
- Wide operating voltage range with UVLO on VCC and HS
- Shoot-through protection with dead-time control
- Enable input for latch/disable functionality
- Fault/diagnostic reporting (status output)
- Protection features: short-circuit and thermal protection
- Suitable for synchronous buck/boost, motor drives, etc.
- 8-lead EMS8E package; Pb-free (PBF)
Note: For exact electrical specs (voltages, current drive, timing, and pinout), please refer to the LTC4446 datasheet.
Pinout
- Pin count: 8 pins (EMS8E denotes an 8‑lead package, MSOP/SOIC style).
- Function: Dual high-side/low-side MOSFET gate driver for two N-channel MOSFETs in a half‑bridge. Provides inputs (IN1, IN2), outputs (HO, LO) with bootstrap supply (VB, VS) plus VCC and GND for driving switching regulators.
- Function: Dual high-side/low-side MOSFET gate driver for two N-channel MOSFETs in a half‑bridge. Provides inputs (IN1, IN2), outputs (HO, LO) with bootstrap supply (VB, VS) plus VCC and GND for driving switching regulators.
Manufacturer
- Manufacturer: Analog Devices, Inc. (ADI). The LTC prefix comes from Linear Technology; Linear Technology was acquired by ADI in 2017, so the current manufacturer is ADI.
- What kind of company: A multinational semiconductor company that designs and manufactures analog, mixed-signal, and high-performance power-management integrated circuits.
- What kind of company: A multinational semiconductor company that designs and manufactures analog, mixed-signal, and high-performance power-management integrated circuits.
Application
LTC4446EMS8E#PBF is a dual MOSFET gate driver. Typical application areas include:
- Driving N-channel MOSFETs in DC-DC converters (buck/boost/buck-boost) and multi-phase VRMs
- Synchronous rectification and half-bridge/H-bridge power stages
- Motor-control power electronics (BLDC/stepper/servo drives)
- Automotive power electronics (12V/24V systems and battery management power stages)
- Industrial and telecom power supplies and adapters requiring efficient gate driving and fast switching
- Any system needing bootstrap high-side driving for high-side N-channel MOSFETs.
- Driving N-channel MOSFETs in DC-DC converters (buck/boost/buck-boost) and multi-phase VRMs
- Synchronous rectification and half-bridge/H-bridge power stages
- Motor-control power electronics (BLDC/stepper/servo drives)
- Automotive power electronics (12V/24V systems and battery management power stages)
- Industrial and telecom power supplies and adapters requiring efficient gate driving and fast switching
- Any system needing bootstrap high-side driving for high-side N-channel MOSFETs.
Package
MSOP-8 (8‑lead MSOP package), RoHS Pb‑free. The EMS8E suffix indicates the MSOP-8 package and PBF denotes Pb-free.
