PEAK_DET |
1 |
I |
Input from peak detect circuit |
T_SENSE |
2 |
I |
Sensor input. Device shuts down when below 1 V. If not used, keep above 1 V by simply connecting to 3.3-V supply |
SNOOZE_CAP |
3 |
I |
Indicates wake from SNOOZE (short) or SLEEP (long) |
Unused |
4 |
— |
This pin can be either connected to GND or left open. Connecting to GND can improve layout grounding. |
Unused |
5 |
— |
This pin can be either connected to GND or left open. Connecting to GND can improve layout grounding. |
Unused |
6 |
— |
This pin can be either connected to GND or left open. Connecting to GND can improve layout grounding. |
V33DIO |
7 |
— |
3.3-V IO power supply |
DGND |
8 |
— |
GND |
RESET |
9 |
I |
Device reset. Use 10- to 100-kΩ pullup resistor to 3.3-V supply |
Reserved |
10 |
— |
Reserved, leave this pin open |
SLEEP |
11 |
O |
Force SLEEP (5 s low power). Connected to 5-s interval circuit |
LED-A |
12 |
O |
Connect to an LED with a 470-Ω resistor for status indication. |
LED-B |
13 |
O |
Connect to an LED with a 470-Ω resistor for status indication. |
SNOOZE |
14 |
O |
Force SNOOZE (500 ms low power) |
Reserved |
15 |
I |
Reserved, connect to GND |
Reserved |
16 |
I/O |
Reserved, connect to GND |
PWM-A |
17 |
O |
PWM output A, controls one half of the full bridge in a phase-shifted full bridge. Switching dead times must be externally generated. |
PWM-B |
18 |
O |
PWM output B, controls other half of the full bridge in a phase-shifted full bridge. Switching dead times must be externally generated. |
FP_RES |
19 |
O |
Output to select the FOD ping calibration threshold |
FP_DECAY |
20 |
O |
Output to select the FOD ping calibration threshold |
PWM_RAIL |
21 |
O |
PWM control signal for full bridge rail voltage |
FOD_CAL |
22 |
O |
Output to select the FOD calibration |
FOD |
23 |
O |
Output to select the foreign object detection (FOD) threshold |
PMOD |
24 |
O |
Output to select the PMOD threshold |
LED-C |
25 |
O |
Connect to an LED with a 470-Ω resistor for status indication. |
DGND |
26 |
— |
GND |
Unused |
27 |
— |
This pin can be either connected to GND or left open. Connecting to GND can improve layout grounding. |
Unused |
28 |
— |
This pin can be either connected to GND or left open. Connecting to GND can improve layout grounding. |
Unused |
29 |
— |
This pin can be either connected to GND or left open. Connecting to GND can improve layout grounding. |
SNOOZE_CHG |
30 |
O |
SNOOZE capacitor charging source. Connected to capacitor |
BUZZ-AC |
31 |
O |
AC buzzer output. A 400-ms, 4-kHz AC pulse train when charging begins |
BUZ-DC |
32 |
O |
DC buzzer output. A 400-ms DC pulse when charging begins. This could also be connected to an LED with a 470-Ω resistor. |
Reserved |
33 |
— |
Reserved, leave this pin open |
Reserved |
34 |
— |
Reserved, leave this pin open |
Reserved |
35 |
— |
Reserved, leave this pin open |
Reserved |
36 |
— |
Reserved, leave this pin open |
Reserved |
37 |
— |
Reserved, leave this pin open |
Reserved |
38 |
— |
Reserved, leave this pin open |
Reserved |
39 |
— |
Reserved, leave this pin open |
Reserved |
40 |
— |
Reserved, connect to 10-kΩ resistor to GND |
Reserved |
41 |
— |
Reserved, leave this pin open |
Reserved |
42 |
— |
Reserved, leave this pin open |
DGND |
43 |
— |
GND |
V33DIO |
44 |
— |
3.3-V IO power supply |
V33D |
45 |
— |
Digital core 3.3-V supply. Be sure to decouple with bypass capacitors as close to the part as possible. |
V33A |
46 |
— |
Analog 3.3-V supply. This pin can be derived from V33D supply, decouple with 22-Ω resistor and additional bypass capacitors. |
BPCAP |
47 |
— |
Connect to 1uF bypass capacitors to 3.3V supply and GND |
AGND2 |
48 |
— |
GND |
AGND |
49 |
— |
GND |
COMM_A+ |
50 |
I |
Digital demodulation non-inverting input A. Connect parallel to input B+ |
COMM_A- |
51 |
I |
Digital demodulation inverting input A. Connect parallel to input B– |
COMM_B+ |
52 |
I |
Digital demodulation non-inverting input B. Connect parallel to input A+ |
COMM_B– |
53 |
I |
Digital demodulation inverting input B. Connect parallel to input A– |
V_RAIL+ |
54 |
I |
Feedback for full bridge rail voltage control + |
V_RAIL– |
55 |
I |
Feedback for full bridge rail voltage control – |
Unused |
56 |
— |
This pin can be either connected to GND or left open. Connecting to GND can improve layout grounding. |
Unused |
57 |
— |
This pin can be either connected to GND or left open. Connecting to GND can improve layout grounding. |
V33FB |
58 |
I |
Reserved, leave this pin open |
I_SENSE |
59 |
I |
Full bridge input current sense |
LOSS_THR |
60 |
I |
Input for FOD/PMOD calibration and configuration |
LED_MODE |
61 |
I |
LED mode select |
PWR_UP |
62 |
I |
First power-up indicator (pull high if unused) |
V_SENSE |
63 |
I |
Transmitter rail voltage sense |
AGND3 |
64 |
— |
GND |
Thermal Pad |
|
— |
Flood with copper GND plane and stitch vias to PCB internal GND plane. |