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UC2825A-EP Scheda tecnica(PDF) 10 Page - Texas Instruments |
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UC2825A-EP Scheda tecnica(HTML) 10 Page - Texas Instruments |
10 / 21 page UDG−95108 VCC = OPEN 255C –555C Current – A 0 0.2 0.4 0.6 0.8 1.0 0 1 2 3 UDG−95106 250 mA 50 k Q4 Q1 Q2 Q3 UVLO OUT PGND VCC UDG−95109 UDG−95110 ISWITCH Current Mode Voltage Mode Oscillator Oscillator CT CT 1.25 V Ramp RSENSE From E/A CT 1.25 V Ramp From E/A CT UC2825A-EP SGLS305D – JULY 2005 – REVISED SEPTEMBER 2010 www.ti.com Active-Low Outputs During UVLO The UVLO function forces the outputs to be low and considers both VCC and VREF before allowing the chip to operate. Figure 6. Output Voltage vs Output Current Figure 7. Output V and I During UVLO Control Methods Figure 8. Control Methods 10 Submit Documentation Feedback Copyright © 2005–2010, Texas Instruments Incorporated Product Folder Link(s): UC2825A-EP |
Codice articolo simile - UC2825A-EP_15 |
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Descrizione simile - UC2825A-EP_15 |
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