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TPS65040 Datasheet(PDF) 61 Page - Texas Instruments |
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TPS65040 Datasheet(HTML) 61 Page - Texas Instruments |
61 / 72 page SUB BANDGAP MAIN BANDGAP PowerSupply Voltage Detecter COVREF1 0.01uF VBN1 VREF1 VREF2 GND1 SBG_EN MBG_EN Bias Current BuckBoost DC/DCConverter LDOs,PAVREF, AFCDAC r[PSCNTDC/DC] CCLK CDATA CSTB SerialInterface SBG_ENandMBG_EN comefromthecontrol logicblock. COVREF2 0.1uF TPS65040 SLVS708 – NOVEMBER 2006 Figure 82. Reference Block Diagram See the following tables for bandgap information: • Table 18– Sub Bandgap Power-Up Condition • Table 19– Main bandgap Power-Up Condition (REG_EN=VIO1V8=Hi) • Table 20– Main Bandgap Power-Down Condition (REG_EN=VIO1V8=Hi) • Table 21– External Pin Control • Table 22– VREF1/VREF2 BG Buffer Power-Up Condition Table 18. Sub Bandgap Power-Up Condition PIN CONDITION MBG(1) SBG(2) REG_EN Low OFF OFF High Table 19 or Table 20 ON (1) MBG: Main Bandgap (2) SBG: Sub Bandgap 61 Submit Documentation Feedback |
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