FAN7387 Fairchild Semiconductor, FAN7387 Datasheet

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FAN7387

Manufacturer Part Number
FAN7387
Description
Fan7387 ? Self-oscillated, High-voltage Gate Driver
Manufacturer
Fairchild Semiconductor
Datasheet

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© 2008 Fairchild Semiconductor Corporation
FAN7387 • 1.0.2
FAN7387 — Self-Oscillated, High-Voltage Gate Driver
Features
Applications
Ordering Information
Note:
1.
Part Number
FAN7387MX
FAN7387M
FAN7387N
For Fairchild’s definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
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
Half-Bridge Inverter
SMPS
Ballast Solution for High-Intensity Discharge
(HID) Lamp
Ballast for Fluorescent Lamp
These device passed wave soldering test by JESD22A-111.
(1)
(1)
Package
8-SOP
8-DIP
Operating Temperature
-40 to +125°C
Description
The FAN7387 is a simple control IC for common half-
bridge 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.
8-DIP
Eco Status
RoHS
RoHS
8-SOP
Packing Method
Tape & Reel
December 2008
www.fairchildsemi.com
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FAN7387 Summary of contents

Page 1

... These device passed wave soldering test by JESD22A-111. © 2008 Fairchild Semiconductor Corporation FAN7387 • 1.0.2 Description The FAN7387 is a simple control IC for common half- bridge inverters, SMPS, and ballast for fluorescent and HID lamps. The FAN7387 has an oscillating circuit using an external resistor and capacitor. ...

Page 2

... Typical Applications Diagrams VDD RT1 RDT Q1 Q2 Frequency Shutdown Control GND * Note: This capacitor, Cb, is for system stability and must use at least 470nF. Figure 1. Figure 2. © 2008 Fairchild Semiconductor Corporation FAN7387 • 1.0 RCT VDD ...

Page 3

... Typical Application Diagrams Figure 3. Figure 4. © 2008 Fairchild Semiconductor Corporation FAN7387 • 1.0.2 (Continued) Typical Application Circuit for Full-Bridge Converter Typical Application Circuit for Fluorescent Lamp Ballast 3 www.fairchildsemi.com ...

Page 4

... Dead-time control and shutdown (active LOW). 4 GND Signal Ground Low-Side Output High-Side floating supply return High-Side output High-Side floating supply. © 2008 Fairchild Semiconductor Corporation FAN7387 • 1.0.2 Figure 5. Functional Block Diagram FAN7387 YWW ( YWW : Work Week Code ...

Page 5

... IH V Logic “0” Input Voltage of RCT IL R Timing Resistor Value of RCT T C Timing Capacitor Value of RCT T T Ambient Temperature A © 2008 Fairchild Semiconductor Corporation FAN7387 • 1.0.2 =25°C unless otherwise specified. A Parameter (2) 8-DIP 8-SOP 8-DIP 8-SOP Parameter (3 Min. Typ. Max. ...

Page 6

... Output Low, Short-Circuit Pulse Current O- Allowable Negative Signal (V ) Propagation to HO RCT Note: 3. These parameters, although guaranteed, is not 100% tested in production. © 2008 Fairchild Semiconductor Corporation FAN7387 • 1.0.2 =50k and C =330pF and T =25°C, unless otherwise specified Test Conditions ) DD V Increasing ...

Page 7

... F Protection Characteristics /SD+ Shutdown “1” Input Voltage /SD- Shutdown “0” Input Voltage I Shutdown Current SD t Shutdown Propagation Delay SD © 2008 Fairchild Semiconductor Corporation FAN7387 • 1.0.2 (Continued) =50k and C =330pF and T =25°C, unless otherwise specified Test Conditions V =V =14V ...

Page 8

... F Figure 7. Test Circuit for Self-Oscillation Method Figure 9. Shutdown Delay Definition Figure 11. Basic Operation Waveforms of Forced-oscillation Method Using External Signal © 2008 Fairchild Semiconductor Corporation FAN7387 • 1.0.2 μ Figure 8. Basic Operating Waveforms of Self-Oscillation μ Figure 10. Test Circuit for Forced-Oscillation Method ...

Page 9

... Temperature [°C] Figure 12. Startup Current vs. Temperature 10.5 10.0 9.5 9.0 8.5 8.0 7.5 -40 - Temperature [°C] Figure 14. V UVLO- vs. Temperature DD 10.0 9.6 9.2 8.8 8.4 8.0 7.6 7.2 -40 - Temperature [°C] Figure 16. V UVLO- vs. Temperature BS © 2008 Fairchild Semiconductor Corporation FAN7387 • 1.0.2 12.5 12.0 11.5 11.0 10.5 10.0 9.5 - 100 120 Figure 13. V 10.0 9.6 9.2 8.8 8.4 8.0 7.6 7 100 120 -40 Figure 15. V 16.0 15.8 15.6 15.4 15.2 15.0 14 ...

Page 10

... Temperature [°C] Figure 20. I vs. Temperature SD 3.0 2.5 2.0 1.5 1.0 -40 - Temperature [°C] Figure 22 vs. Temperature SD © 2008 Fairchild Semiconductor Corporation FAN7387 • 1.0.2 (Continued) 500 400 300 200 100 100 120 -40 3.0 2.5 2.0 1.5 1.0 0.5 0.0 - 100 120 ...

Page 11

... Temperature [°C] Figure 26. Dead-Time Mismatch vs. Temperature -40 - Temperature [°C] Figure 28. Low-Side Duty Ratio vs. Temperature © 2008 Fairchild Semiconductor Corporation FAN7387 • 1.0.2 (Continued) 500 475 450 425 400 375 350 325 300 - 100 120 ...

Page 12

... +14V External Signal 4. Gate Driver Operation The FAN7387 has a two operating modes. One is the self-oscillation mode by using external timing resistor (R ) and external timing capacitor (C T the forced oscillation mode by external PWM signal comes from U-com and the other devices. ...

Page 13

... Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2008 Fairchild Semiconductor Corporation FAN7387 • 1.0 .400 10.15 ...

Page 14

... Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2008 Fairchild Semiconductor Corporation FAN7387 • 1.0.2 5.00 4.80 A 3.81 ...

Page 15

... Fairchild Semiconductor Corporation FAN7387 • 1.0.2 15 www.fairchildsemi.com ...

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