
LTC4444EMS8E-5#TRPBF
ActiveHIGH VOLTAGE SYNCHRONOUS N-CHANNEL MOSFET DRIVER

LTC4444EMS8E-5#TRPBF
ActiveHIGH VOLTAGE SYNCHRONOUS N-CHANNEL MOSFET DRIVER
Description
General part information
LTC4444 Series
The LTC4444 is a high frequency high voltage gate driver that drives two N-channel MOSFETs in a synchronous DC/DC converter with supply voltages up to 100V. This powerful driver reduces switching losses in MOSFETs with high gate capacitance.The LTC4444 is configured for two supply-independent inputs. The high side input logic signal is internally level-shifted to the bootstrapped supply, which may function at up to 114V above ground.The LTC4444 contains undervoltage lockout circuits that disable the external MOSFETs when activated. Adaptive shoot-through protection prevents both MOSFETs from conducting simultaneously.For a similar driver in this product family, please refer to the chart below.ParameterLTC4444LTC4446LTC4444-5Shoot-Through ProtectionYesNoYesAbsolute Max TS100V100V100VMOSFET Gate Drive7.2V to 13.5V7.2V to 13.5V4.5V to 13.5VVCCUV+6.6V6.6V4VVCCUV–6.15V6.15V3.55VApplicationsDistributed Power ArchitecturesAutomotive Power SuppliesHigh Density Power ModulesTelecommunications
Technical Specifications
Parameters and characteristics for this part
| Specification | LTC4444EMS8E-5#TRPBF |
|---|---|
| Channel Type | Independent |
| Current - Peak Output (Sink) | 3 A |
| Current - Peak Output (Source) | 2.5 A |
| Driven Configuration | Half-Bridge |
| Fall Time (Typ) | 5 ns |
| Gate Channel | N-Channel |
| Gate Type | MOSFET, N-Channel MOSFET |
| High Side Voltage - Max (Bootstrap) | 114 V |
| Input Type | Non-Inverting |
| Logic Voltage - VIH | 3.25 V |
| Logic Voltage - VIL | 1.85 V |
| Mounting Type | Surface Mount |
| Number of Drivers | 2 |
| Operating Temperature (Max) | 125 °C |
| Operating Temperature (Min) | -40 °C |
| Package Features | Exposed Pad |
| Package Length | 0.118 in |
| Package Name | 8-MSOP, 8-TSSOP, 8-MSOP-EP |
| Package Width | 3 mm |
| Rise Time (Typ) | 8 ns |
| Voltage - Supply (Maximum) | 13.5 V |
| Voltage - Supply (Minimum) | 4.5 V |
Pricing
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CAD
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Documents
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