LT1158
LT1158
PRODUCTIONHalf Bridge N-Channel Power MOSFET Driver
- Part Models
- 7
- 1ku List Price
- Starting From $6.18
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Overview
- Drives Gate of Top Side MOSFET Above V+
- Operates at Supply Voltages from 5V to 30V
- 150ns Transition Times Driving 3000pF
- Over 500mA Peak Driver Current
- Adaptive Non-Overlap Gate Drives
- Continuous Current Limit Protection
- Auto Shutdown and Retry Capability
- Internal Charge Pump for DC Operation
- Built-In Gate Voltage Protection
- Compatible with Current-Sensing MOSFETs
- TTL/CMOS Input Levels
- Fault Output Indication
A single input pin on the LT1158 synchronously controls two N-channel power MOSFETs in a totem pole configuration. Unique adaptive protection against shoot-through currents eliminates all matching requirements for the two MOSFETs. This greatly eases the design of high efficiency motor control and switching regulator systems.
A continuous current limit loop in the LT1158 regulates short-circuit current in the top power MOSFET. Higher start-up currents are allowed as long as the MOSFET VDS does not exceed 1.2V. By returning the FAULT output to the enable input, the LT1158 will automatically shut down in the event of a fault and retry when an internal pull-up current has recharged the enable capacitor.
An on-chip charge pump is switched in when needed to turn on the top N-channel MOSFET continuously. Special circuitry ensures that the top side gate drive is safely maintained in the transition between PWM and DC operation. The gate-to-source voltages are internally limited to 14.5V when operating at higher supply voltages.
Applications
- PWM of High Current Inductive Loads
- Half Bridge and Full Bridge Motor Control
- Synchronous Step-Down Switching Regulators
- Three-Phase Brushless Motor Drive
- High Current Transducer Drivers
- Battery-Operated Logic-Level MOSFETs
Documentation
Data Sheet 1
Application Note 3
Design Note 2
Technical Articles 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LT1158CN#PBF | 16-Lead PDIP (Narrow 0.30 Inch) | ||
| LT1158CSW#PBF | 16-Lead SOIC (Wide 0.3 Inch) | ||
| LT1158CSW#TRPBF | 16-Lead SOIC (Wide 0.3 Inch) | ||
| LT1158IN#PBF | 16-Lead PDIP (Narrow 0.30 Inch) | ||
| LT1158ISW | 16-Lead SOIC (Wide 0.3 Inch) | ||
| LT1158ISW#PBF | 16-Lead SOIC (Wide 0.3 Inch) | ||
| LT1158ISW#TRPBF | 16-Lead SOIC (Wide 0.3 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 11, 2022 - 22_0241 Epoxy Change from Henkel 8290 to 8290A for PDIP Package |
||
| LT1158CN#PBF | PRODUCTION | |
| LT1158IN#PBF | PRODUCTION | |
|
Aug 6, 2022 - 22_0172 Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG] |
||
| LT1158CN#PBF | PRODUCTION | |
| LT1158IN#PBF | PRODUCTION | |
|
Aug 10, 2022 - 22_0176 Laser Top Mark Conversion for SOIC_W Packages Assembled in ADPG [PNG] and UTL |
||
| LT1158CSW#PBF | PRODUCTION | |
| LT1158CSW#TRPBF | PRODUCTION | |
| LT1158ISW | ||
| LT1158ISW#PBF | PRODUCTION | |
| LT1158ISW#TRPBF | PRODUCTION | |
|
May 29, 2025 - 25_0024 Carsem SnPb Packaging End of Life |
||
| LT1158ISW | ||
This is the most up-to-date revision of the Data Sheet.
Software Resources
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LTspice 1
Models for the following parts are available in LTspice:
- LT1158
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.