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FAN7387

Fairchild Semiconductor

High-Voltage Gate Driver - Fairchild Semiconductor


FAN7387
FAN7387

PDF File FAN7387 PDF File



Description
FAN7387 — Self-Oscillated, High-Voltage Gate Driver March 2014 FAN7387 Self-Oscillated, High-Voltage Gate Driver Features       Internal Clock Using RCT External Sync Function Using RCT Dead Time Control Using Resistor Shut Down (Disable Mode) Internal Shunt Regulator UVLO Function, High and Low Side Description The FAN7387 is a simple control IC for common halfbridge inverters, SMPS, and ballast for fluorescent and HID lamps.
The FAN7387 has an oscillating circuit using an external resistor and capacitor.
The frequency variation is very stable across a wide temperature range.
The FAN7387 has an external pin for dead-time control and shutdown.
Using this resistor, the designer can choose the optimum dead time to reduce power loss on switching devices, such as transistors and MOSFETs.
Applications     Half-Bridge Inverter SMPS Ballast Solution for High-Intensity Discharge (HID) Lamp Ballast for Fluorescent Lamp 8-DIP 8-SOP Ordering Information Part Number FAN7387MX Note: 1.
These device passed wave soldering test by JESD22A-111.
(1) Package 8-SOP Operating Temperature -40 to +125°C Packing Method Tape & Reel © 2008 Fairchild Semiconductor Corporation FAN7387 • 1.
0.
4 www.
fairchildsemi.
com FAN7387 — Self-Oscillated, High-Voltage Gate Driver Typical Applications Diagrams C1 D1 VDD CT 1 RCT VB VDC C2 8 7 6 D2 R1 M1 C3 C4 C5 FAN7387 RT1 RDT 2 VDD 3 DT/ SD HO VS R2 LO D3 M2 C6 Q1 Frequency Control GND Q2 Cb* RT2 Shutdown 4 GND 5 * Note: This capacitor, Cb, is for system stability and must use at least 470nF.
FAN7387 Rev1.
0 Figure 1.
Typical Application Circuit for SMPS (Self Oscillation Method) Figure 2.
Typical Application Circuit for SMPS by Using External Signal © 2008 Fairchild Semiconductor Corporation FAN7387 • 1.
0.
4 www.
fairchildsemi.
com 2 FAN7387 — Self-Oscillated, High-Voltage Gate Driver Typical Application Diagrams (Continued) FAN7387 Figure 3.
Typical Application Circuit for Full-Bridge Converter Figure 4.
Typ...



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