FAN3121C Fairchild Semiconductor, FAN3121C Datasheet
FAN3121C
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FAN3121C Summary of contents
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... EN 3 GND 4 Figure 1. FAN3121 Pin Configuration © 2008 Fairchild Semiconductor Corporation FAN3121 / FAN3122 • Rev. 1.0.0 Description The FAN3121 and FAN3122 MOSFET drivers are designed to drive N-channel enhancement MOSFETs in low-side switching applications by providing high peak current pulses. The drivers are available with either TTL (FAN312xT) or CMOS (FAN312xC) input thresholds ...
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... Ordering Information Part Number Logic FAN3121CMPX FAN3121CMX Inverting Channels + Enable FAN3121TMPX FAN3121TMX FAN3122CMPX FAN3122CMX Non-Inverting Channels + Enable FAN3122TMPX FAN3122TMX For Fairchild’s definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html. Package Outlines Figure 3. 3x3mm MLP-8 (Top View) Thermal Characteristics Package ...
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... Note: 7. Default input signal if no external connection is made. © 2008 Fairchild Semiconductor Corporation FAN3121 / FAN3122 • Rev. 1.0.0 VDD 8 7 OUT 6 OUT 5 GND Figure 6. Enable Input. Pull pin LOW to inhibit driver. EN has logic thresholds for both TTL and CMOS IN thresholds. ...
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... Block Diagram Inverting 100k (FAN3121 Non-Inverting (FAN3122) 100k V 100k EN 3 GND 4 © 2008 Fairchild Semiconductor Corporation FAN3121 / FAN3122 • Rev. 1.0.0 UVLO V DD_OK DD Figure 7. Block Diagram OUT (FAN3121) OUT (FAN3122) 7 100k OUT (FAN3121) 6 OUT (FAN3122) GND 5 www.fairchildsemi.com ...
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... Absolute Maximum Ratings. Symbol V Supply Voltage Range DD V Enable Voltage Input Voltage Operating Ambient Temperature A © 2008 Fairchild Semiconductor Corporation FAN3121 / FAN3122 • Rev. 1.0.0 Parameter Human Body Model, JEDEC JESD22-A114 Charged Device Model, JEDEC JESD22-C101 Parameter 5 Min. Max. Unit -0.3 20.0 V GND - 0 ...
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... EN inputs have modified TTL thresholds; refer to the ENABLE section. 10. See Timing Diagrams of Figure 8 and Figure 9. 11. Not tested in production. © 2008 Fairchild Semiconductor Corporation FAN3121 / FAN3122 • Rev. 1.0.0 =-40°C to +125°C. Currents are defined as positive into the device and J Conditions ...
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... Timing Diagrams Figure 8. Non-Inverting © 2008 Fairchild Semiconductor Corporation FAN3121 / FAN3122 • Rev. 1.0.0 Figure 9. Inverting 7 www.fairchildsemi.com ...
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... Typical characteristics are provided at 25°C and V Figure 10. I (Static) vs. Supply Voltage DD Figure 12. I (No-Load) vs. Frequency DD Figure 14. I (10nF Load) vs. Frequency DD © 2008 Fairchild Semiconductor Corporation FAN3121 / FAN3122 • Rev. 1.0.0 =12V unless otherwise noted. DD (12) Figure 11. I (Static) vs. Supply Voltage DD Figure 13. I (No-Load) vs. Frequency DD Figure 15 ...
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... Typical Performance Characteristics Typical characteristics are provided at 25°C and V Figure 16. I (Static) vs. Temperature DD Figure 18. Input Thresholds vs. Supply Voltage Figure 20. Input Thresholds % vs. Supply Voltage © 2008 Fairchild Semiconductor Corporation FAN3121 / FAN3122 • Rev. 1.0.0 =12V unless otherwise noted. DD (12) Figure 17. I (Static) vs. Temperature DD Figure 19 ...
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... Typical Performance Characteristics Typical characteristics are provided at 25°C and V Figure 22. CMOS Input Thresholds vs. Temperature Figure 24. Enable Thresholds vs. Temperature Figure 26. UVLO Hysteresis vs. Temperature © 2008 Fairchild Semiconductor Corporation FAN3121 / FAN3122 • Rev. 1.0.0 =12V unless otherwise noted. DD Figure 23. TTL Input Thresholds vs. Temperature Figure 25 ...
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... Typical Performance Characteristics Typical characteristics are provided at 25°C and V Figure 28. Propagation Delay vs. Supply Voltage Figure 30. Propagation Delay vs. Supply Voltage Figure 32. Propagation Delays vs. Temperature © 2008 Fairchild Semiconductor Corporation FAN3121 / FAN3122 • Rev. 1.0.0 =12V unless otherwise noted. DD Figure 29. Propagation Delay vs. Supply Voltage Figure 31 ...
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... Typical Performance Characteristics Typical characteristics are provided at 25°C and V Figure 34. Propagation Delays vs. Temperature Figure 36. Propagation Delays vs. Temperature Figure 38. Rise Time vs. Supply Voltage © 2008 Fairchild Semiconductor Corporation FAN3121 / FAN3122 • Rev. 1.0.0 =12V unless otherwise noted. DD Figure 35. Propagation Delays vs. Temperature Figure 37. Fall Time vs. Supply Voltage Figure 39 ...
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... Figure 7. DD 13. The initial spike in each current waveform is a measurement artifact caused by the stray inductance of the current-measurement loop. © 2008 Fairchild Semiconductor Corporation FAN3121 / FAN3122 • Rev. 1.0.0 =12V unless otherwise noted. DD Figure 41 ...
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... not externally connected, an internal pull- up resistor enables the driver by default. The EN pin has logic thresholds for parts with either TTL or CMOS IN thresholds. In the FAN3121C and FAN3122C, the logic input thresholds are dependent on the V of 12V, the logic rising edge threshold is approximately 55 ...
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... N-channel MOSFETs Figure 49. Inverting Configuration The OUT pulses’ magnitude follows V the output polarity inverted from the input until steady- state V is reached. DD © 2008 Fairchild Semiconductor Corporation FAN3121 / FAN3122 • Rev. 1.0 acts to contain the high IN IN+ (V ...
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... T = board temperature in location as defined in B the Thermal Characteristics table. © 2008 Fairchild Semiconductor Corporation FAN3121 / FAN3122 • Rev. 1.0 full-bridge synchronous rectifier application, shown in Figure 53, each FAN3122 drives a parallel combination of two high-current MOSFETs, (such as FDMS8660S). The typical gate charge for each SR ...
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... Typical Application Diagrams From A2 From PWM Active HIGH Figure 54. Hybrid Synchronous Rectification in a Forward Converter © 2008 Fairchild Semiconductor Corporation FAN3121 / FAN3122 • Rev. 1.0.0 FAN3122 AGND Figure 53. Full-Bridge Synchronous Rectification FAN3121 ...
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... Dual 2A +2.4A / -1.6A FAN3223C Dual 4A +4.3A / -2.8A FAN3223T Dual 4A +4.3A / -2.8A FAN3224C Dual 4A +4.3A / -2.8A FAN3224T Dual 4A +4.3A / -2.8A FAN3225C Dual 4A +4.3A / -2.8A FAN3225T Dual 4A +4.3A / -2.8A FAN3121C Single 9A +9.7A / -7.1A FAN3121T Single 9A +9.7A / -7.1A FAN3122C Single 9A +9.7A / -7.1A FAN3122T Single 9A +9.7A / -7.1A Note: 14. Typical currents with OUT at 6V and V © 2008 Fairchild Semiconductor Corporation FAN3121 / FAN3122 • Rev. 1.0.0 Input (14) Threshold CMOS Single Channel of Two-Input/One-Output ...
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... Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. 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’ ...
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... Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. 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’ ...
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... Fairchild Semiconductor Corporation FAN3121 / FAN3122 • Rev. 1.0.0 21 www.fairchildsemi.com ...