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33730 数据表(PDF) 2 Page - Freescale Semiconductor, Inc |
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33730 数据表(HTML) 2 Page - Freescale Semiconductor, Inc |
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2 / 27 page ![]() Analog Integrated Circuit Device Data 2 Freescale Semiconductor 33730 INTERNAL BLOCK DIAGRAM INTERNAL BLOCK DIAGRAM Figure 2. 33730 Simplified Internal Block Diagram UVLO /OVLO VBAT VBAT KA_VBAT VKAM CP PFD REG ON VIGN IGN_ON VREF1 VREF2 P1 P2 P3 RSTKAM RSTH RST3 RSTL SW SW FREQ BOOT SR INV VCOMP VDDH VDD3_B VDD3 VDDL_B VDDL HRT GND Oscillator Feed Forward Ramp Generator HS Drive Level Shifter VKAM 15 mA, ILIM, TLIM Protection FET Drive Charge Pump 5.0V ILIM=150mA 26.5V,-1V,TLIM Ref. Voltage Programming Block 5.0V ILIM=150mA 26.5V,-1V,TLIM Standby Control Buck Control Logic CP + – + – + – Enable VKAM Reset Detect VDDH Reset Detect VDD3 Reset Detect VDDL Reset Detect HR Timer VKAM, VDDL, VDD3, VDD3_SBY Reference Voltage Bandgap Preference T-lim VBG VDD3 ILim, TLim VDD3_SBY ILim, TLim VDDL ILim 20K 5.0K VBG |
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