NXP Semiconductors
FRDM33772BTPLEVB
Featuring the MC33772B battery cell controller IC
FRDM33772BTPLEVBUG
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User guide
Rev. 1.0 — 22 June 2018
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Table 2. Board description
Name
Description
MC33772B
Battery-cell controller IC
4.6 VCOM LED
The VCOM LED is located on the board as shown in
Figure 3
.
Figure 3. VCOM LED
The VCOM LED indicates when the device is in normal mode. Upon reset, the
MC33772B enters into normal mode (VCOM turns on). If there is no activity on the bus
after a timeout period of 60 seconds, the device enters low-power idle mode (VCOM
turns off). Once the device is initialized, if no communication occurs on the TPL bus
after one second, the device resets and the LED turns off (VCOM off). Depending on the
device settings, the VCOM LED may flash 0.1...8 seconds during cyclic acquisition.
4.7 Test-point definitions
Figure 4
shows the location of the test points on the board.