LTC1157CN8#PBF

Overview

The LTC1157CN8#PBF is a dual MOSFET gate driver designed for high-side and low-side applications. It operates with a supply voltage range of 2.7V to 5.5V and accepts input logic up to 7V. The device features independent drivers with a maximum dead time of 60µs to prevent shoot-through. It draws a typical quiescent current of 180µA and provides an output voltage of 8.8V. Packaged in an 8-pin PDIP, it functions within a temperature range of 0°C to +70°C.

Feature Summary

• Integrates two independent gate drivers for simultaneous high-side and low-side control
• Features programmable dead-time control to minimize cross-conduction losses
• Supports low-voltage operation with a wide input logic compatibility range

Applications

• DC-DC converter power stages
• Motor drive circuits
• Synchronous rectification systems

Procurement Notes

Verify the specific suffix #PBF confirms lead-free compliance and RoHS status before procurement. Confirm the PDIP-8 package availability matches your assembly requirements. Check official Analog Devices documentation for any recent lifecycle changes or obsolescence notices. Ensure the operating temperature range aligns with your system's thermal design constraints.

Selection Notes

Select this component when a compact dual-driver solution is required for low-voltage synchronous applications. Consider the 180µA quiescent current for battery-operated efficiency. Verify that the 60µs dead time meets the switching frequency requirements of the target power stage. Compare against the CS8 variant if surface-mount packaging is preferred over through-hole.

Part Context

This part belongs to the LTC1157 family of microprocessor-compatible gate drivers. It shares functional similarities with other Linear Technology drivers but is distinct from the LT1057 operational amplifier series. The CN8 designation specifically identifies the plastic DIP package configuration used for prototyping and through-hole manufacturing.

Replacement Considerations

• LTC1157CS8#PBF