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TPS65105PWPR Datasheet(PDF) 7 Page - Texas Instruments |
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TPS65105PWPR Datasheet(HTML) 7 Page - Texas Instruments |
7 / 32 page www.ti.com 1.6-MHz Oscillator D S VFB 1.146 V Comparator GM Amplifier Sawtooth Generator VFB 1.146 V D S D S D S D S Vref 1.213 V Vin SUP ~1 V D S SUP SUP D S D S SUP C1− C1+ Vo3 C2+ C2− D S Vref 1.214 V Soft Start Vref 1.213 V SUP ENR BASE FB4 REF FB2 DRV COMP FB1 VIN SW SW FB3 VCOM VCOMIN GND PGND PGND Q1 Q3 Q4 Q5 Q6 Q7 D S D S Q8 Q9 Q10 Q11 Q12 SUP EN VCOM Buffer Linear Regulator Controller Reference Output Negative Charge Pump Positive Charge Pump Main boost converter Vref 0 V D1 D4 D2 D3 Disable GM Amplifier Low Gain FB1 FB2 FB3 Q2 SUP Bias Vref = 1.213 V Thermal Shutdown Start-Up Sequencing Undervoltage Detection Short-Circuit Protection Current Limit and Soft Start Control Logic Gate Drive Circuit SUP (VO) Current Control Gain Select (Doubler or Tripple Mode) Soft Start Iref = 20 mA Short Circuit Detect Soft Start Current Control Soft Start TPS65100, TPS65101 TPS65105 SLVS496C – SEPTEMBER 2003 – REVISED APRIL 2006 FUNCTIONAL BLOCK DIAGRAM 7 Submit Documentation Feedback |
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