Garmin MC34676B manual Connector Pads, Test Points

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Evaluation Board Configuration

Table 4. The Default Settings of the Pin Headers

J11

J12

J13

Open

Shorted

Open

7.2Connector Pads

There are 14 connecting pads (TP1 to TP14 with corresponding names) on the evaluation board to let the user simply connect the board to their system. The GND pads link power ground of the MC34676B. The AC pad or USB pad connect an external power source to the evaluation board. The PPR, CHG, USBEN, BATDET, USBOUT, ISET, IUSB and the IMIN pads link to the corresponding pins of the MC34676B. The VL pad is for the user to supply a logic I/O voltage to the evaluation board, if that application system needs a logic voltage level to interface to the PPR and CHG pins of the MC34676B. The VBAT pad connects the positive pole of the Li+ battery being charged.

7.3Test Points

The KIT34676EPEVBE evaluation board provides 11 signal test points and 3 ground test points for users to conveniently hook up multi-meters and oscilloscope probes to evaluate the MC34676B. The test points connect the pins of the MC34676B with the same names directly.

 

Using the Dual 28V Input Voltage Charger with Linear Regulator, Rev. 1.0

10

Freescale Semiconductor

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Contents Purpose ScopeDual-Input Standalone Charger Application DiagramEmbedded Charger Evaluation Board Specification Schematic Circuit of the Evaluation BoardComponent Selection AC CC-mode charge current setting resistors R1, R2, and R3USB CC-mode charge current setting resistors R8 and R9 Input capacitors C1 and C3End-of-charge current setting resistors R10 and R11 EOC Current SettingsLayout Design LayoutComponent Side Layer of the Evaluation Board Layout considerations Default Settings of the Pin Headers Evaluation Board ConfigurationPin Headers Connector Pads Test PointsTest Setup with the Evaluation Board AC Charger Set Up for the Evaluation BoardBill of Material DescriptionReferences Products LinksHow to Reach Us
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