Datasheet

NXP Semiconductors

FRDM33771BTPLEVB

Featuring the MC33771B battery cell controller IC

User guide Rev. 1.0 — 28 June 2018

9 / 20

Table 3. Test points

Test-point name Signal name Description

RTDX_IN_N SI/RDTX_IN–

RTDX_IN_P SCLK/RTDX_IN+

RTDX_OUT_N RTDX_OUT–

RTDX_OUT_P RTDX_OUT+

Measures the isolated pulse communication

FAULT FAULT Measures the fault detection sent by the device

NEG_BAT GNDREF Ground reference of the device

POS_BAT V

BAT

Positive V

BAT

VCOM VCOM Communication regulator output

VPWR VPWR Power input to the device

VANA VANA Precision ADC analog supply output

4.8 Connectors

Figure 5 shows the location of connectors on the board. The following tables list the

pinouts for each connector.

Figure 5. Connectors

Table 4. Connector (J1)

Pin # Name Description

1 GND Connected via J24 to GND

2 GND Connected via J25 to GND

Other — No connection

Table 5. Connector (J10)

Pin # Name Description

11 VBAT Connected via J4 to VBAT

12 VBAT Connected via J3 to VBAT