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FAN3122TMX_F085 Datasheet(PDF) 3 Page - Fairchild Semiconductor |
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FAN3122TMX_F085 Datasheet(HTML) 3 Page - Fairchild Semiconductor |
3 / 21 page © 2008 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN3121 / FAN3122 • Rev. 1.0.2 3 Pin Definitions FAN3121 FAN3122 Name Description 3 3 EN Enable Input . Pull pin LOW to inhibit driver. EN has logic thresholds for both TTL and CMOS IN thresholds. 4, 5 4, 5 GND Ground . Common ground reference for input and output circuits. 2 2 IN Input . 6, 7 OUT Gate Drive Output . Held LOW unless required input is present and VDD is above the UVLO threshold. 6, 7 OUT Gate Drive Output (inverted from the input). Held LOW unless required input is present and VDD is above the UVLO threshold. 1, 8 1, 8 VDD Supply Voltage . Provides power to the IC. P1 Thermal Pad (MLP only) . Exposed metal on the bottom of the package; may be left floating or connected to GND; NOT suitable for carrying current. 1 2 3 6 7 8 4 5 VDD GND EN IN VDD OUT GND OUT 1 2 3 6 7 8 4 5 EN IN VDD GND VDD GND OUT OUT Figure 5. FAN3121 Pin Assignments (Repeated) Figure 6. FAN3122 Pin Assignments (Repeated) Output Logic FAN3121 FAN3122 EN IN OUT EN IN OUT 0 0 0 0 0 (8) 0 0 1 (8) 0 0 1 0 1 (8) 0 1 1 (8) 0 (8) 0 1 (8) 1 (8) 0 1 (8) 1 1 Note: 8. Default input signal if no external connection is made. |
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