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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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MC34704 Datenblatt(PDF) 6 Page - Freescale Semiconductor, Inc |
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MC34704 Datenblatt(HTML) 6 Page - Freescale Semiconductor, Inc |
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6 / 49 page  Analog Integrated Circuit Device Data 6 Freescale Semiconductor 34704 PIN CONNECTIONS 30 A FB7 Input REG7 voltage feedback input for voltage regulation/programming Connect the feedback resistor divider to this pin. B AGND1 - - Pin 30 is connected to AGND 31 A DRV7 Output REG7 external Power MOSFET gate drive REG7 external Power MOSFET gate drive. B NC3 No Connect - Pin 31 is not connected 32 A VOUT7 Output REG7 output voltage return pin. This is the discharge path of REG7 output voltage. B PGND1 - - Pin 32 is connected to PGND 33 A FB6 Input REG6 voltage feedback input for voltage regulation/programming Connect the feedback resistor divider to this pin. B AGND2 - - Pin 33 is connected to AGND 34 A BT6 Passive REG6 bootstrap capacitor input pin. Connect a 0.01 μF capacitor between this pin and SW6 pin to enhance the gate of the Synchronous Power MOSFET. B NC4 No Connect - Pin 34 is not connected 35 A B SW6 Output - REG6 switching node The inductor is connected between this pin and the VIN pin. B PGND2 - - Pin 35 is connected to PGND 36 A VOUT6 Output REG6 regulated output voltage pin Connect this pin directly to the load directly and to the output filter as close to the pin as possible. B PGND3 - - Pin 36 is connected to PGND 37 A/B AGND Ground Analog ground of the IC Analog ground of the IC. 38 A/B VIN Power Battery voltage connection Input decoupling /filtering is required for the device to operate properly. 39 A/B VDDI Output Internal supply voltage Connect a 1 μF low ESR decoupling filter capacitor between this pin and GND. 40 A/B LION Input Battery Detection Pull this pin high to VIN to indicate a connection to a Li-Ion battery 41 A/B ONOFF Input Dual function IC turn On/ Off This is a hardware enable/disable for the 34704A/B. It can be connected to a mechanical switch to turn the power On or Off. 42 A/B BT2U Passive REG2 Boost Stage bootstrap capacitor input pin Connect a 1 μF capacitor between this pin and SW2U pin to enhance the gate of the Switch Power MOSFET. 43 A/B COMP2 Passive REG2 compensation network connection REG2 compensation network connection. 44 A/B FB2 Input REG2 voltage feedback input for voltage regulation/programming Connect the feedback resistor divider to this pin. 45 A/B BT2D Passive REG2 Buck Stage bootstrap capacitor input pin Connect a 1 μF capacitor between this pin and SW2D pin to enhance the gate of the Switch Power MOSFET. Table 2. 34704 Pin Definitions (continued) A functional description of each pin can be found in the Functional Pin Description section beginning on page 17. Pin Number Device Pin Name Pin Function Formal Name Definition |
Ähnliche Teilenummer - MC34704 |
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Ähnliche Beschreibung - MC34704 |
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