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MC34921AER2 Datasheet(PDF) 2 Page - Freescale Semiconductor, Inc |
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MC34921AER2 Datasheet(HTML) 2 Page - Freescale Semiconductor, Inc |
2 / 36 page Analog Integrated Circuit Device Data 2 Freescale Semiconductor 34921 INTERNAL BLOCK DIAGRAM INTERNAL BLOCK DIAGRAM Figure 2. 34921 Simplified Internal Block Diagram Supervisor Circuitry RST Gate Driver GATEOUT VBOOST CP2 CP1 Charge Pump Gate Voltage Generator 5 V 5 V SUPPLY 5 V SWITCH 5 V SELECT 5.0 V Dual Mode Regulator VCORE SELECT VCORE VCORE SUPPLY VCORE Linear Regulator 3.3 V 3.3 V SWITCH B+ 3.3 V Switching Regulator AN0/ANALOGOUT_A AN1/ANALOGOUT_B AN2/ANALOGIN_A AN3/ANALOGIN_B A/D Converter and Multiplexer I/V Converter ENC_FILTA ENC_FILTB GND Serial I/O DGND B+ CE SCLK MOSI MISO CPWMA/CDCPWM CPWMB SB /LSOUT2 S B/LSOUT1 SA /CDCMB S A/CDCMA Active Clamp Step Motor Driver CDCMB/HSOUT2 CDCMA/HSOUT1 SS DC Motor Driver ADCMB Motor Driver A B+ ADCMA APWM BDCMB Motor Driver B B+ BDCMA BPWM Thermal Shutdown Oscillator |
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