BQ500211A Datasheet, PDF (7/27 Pages) Texas Instruments – 5-V, WPC1.1 Compliant Wireless Power Transmitter Manager

bq500211A
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PIN
NO.
NAME
3 _AIN3
1 _AIN5
45 _AIN7
35 BPCAP
23 BUZ_AC
24 _{BUZ_DC}
37 COMM_A+
38 COMM_A-
39 COMM_B+
40 COMM_B-
22 DOUT_RX
21 DOUT_TX
15 DOUT_2B
12 _{DPWM_A}
13 _{DPWM_B}
49 EPAD
16 _FOD
32 GND
36 GND
47 GND
42 _{I_SENSE}
44 LED_MODE
4 _LoPWR
43 LOSS_THR
18 _{MSP_CLK}
8 _{MSP_MISO/LED_B}
7 _{MSP_RST/LED_A}
14 MSP_SYNC
26 MSP_TDO/PROG
9 MSP_TEST
25 MSP_MOSI/LPWR_EN
17 _PMOD
10 PMB_CLK
11 PMB_DATA
PIN FUNCTIONS
SLUSBB1 – DECEMBER 2012
I/O
DESCRIPTION
I
This pin can be either connected to GND or left open. Connecting to GND can improve
layout grounding.
I
This pin can be either connected to GND or left open. Connecting to GND can improve
layout grounding.
I This pin can be either connected to GND or left open. Connecting to GND can improve
layout grounding.
— Bypass capacitor for internal 1.8-V core regulator. Connect bypass capacitor to GND.
O AC Buzzer Output. Outputs a 400-ms, 4-kHz AC pulse when charging begins.
O
DC Buzzer Output. Outputs a 400-ms DC pulse when charging begins. This could also be
connected to an LED via 470-Ω resistor.
I Digital demodulation non-inverting input A, connect parallel to input B+.
I Digital demodulation inverting input A, connect parallel to input B-.
I Digital demodulation non-inverting input B, connect parallel to input A+.
I Digital demodulation inverting input B, connect parallel to input A-.
I Leave this pin open.
I Leave this pin open.
O Optional Logic Output 2B. Leave this pin open.
O
PWM Output A, controls one half of the full bridge in a phase-shifted full bridge. Switching
deadtimes must be externally generated.
O
PWM Output B, controls other half of the full bridge in a phase-shifted full bridge. Switching
deadtimes must be externally generated.
- Flood with copper GND plane and stitch vias to PCB internal GND plane.
O
FOD read pin. Leave open unless PMOD and FOD thresholds need to be different. It
controls the FOD threshold resistor read at startup.
— GND.
— GND.
— GND.
I Transmitter input current, used for efficiency calculations. Use 20-mΩ sense resistor and
A=50 gain current sense amplifier.
I Input to select from 4 LED modes.
I
Dynamic Power Limiting™ (DPL) control pin. To set power mode to 500 mA, pull to GND.
For full-power operation pull to 3.3-V supply.
I Input to program foreign and parasitic metal object detection threshold
I/O
Used for boot loading the MSP430 low power supervisor. If MSP430 is not used, leave this
pin floating.
I
MSP – TMS, SPI-MISO, LED-B -- If external MSP430 is not used, connect to an LED via
470-Ω resistor for status indication.
I
MSP – Reset, LED-A -- If external MSP430 is not used, connect to an LED via 470-Ω
resistor for status indication.
O MSP SPI_SYNC, if external MSP430 is not used, leave this pin open.
I/O MSP-TDO, MSP430 programmed indication.
I MSP – Test, If external MSP430 is not used, leave this pin open.
I/O Low standby power supervisor enable. If low power is not needed, connect this to GND.
O
PMOD read pin. Leave open unless PMOD and FOD thresholds need to be different. It
controls the PMOD threshold resistor read at startup.
I/O 10-kΩ pull-up resistor to 3.3-V supply.
I/O 10-kΩ pull-up resistor to 3.3-V supply.
Copyright © 2012, Texas Instruments Incorporated
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