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BQ500412 Datasheet(PDF) 7 Page - Texas Instruments |
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BQ500412 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 28 page bq500412 www.ti.com SLUSBO2A – NOVEMBER 2013 – REVISED DECEMBER 2013 PIN FUNCTIONS PIN I/O DESCRIPTION NO. NAME 1 COIL_PEAK I Connected to peak detect circuit. Protects from coil overvoltage event. 2 Sensor Input. Device shuts down when below 1 V for longer than 150ms. If not used, keep T_SENSE I above 1 V by connecting to the 3.3-V supply. 3 SNOOZE_CAP I Connected to interval timing capacitor 4 PWR_UP I First power-up indicator 5 RESET I Device reset. Use a 10-k Ω to 100-kΩ pull-up resistor to the 3.3-V supply. 6 PMOD O Select for PMOD threshold 7 LED_A I Connect to an LED via 470- Ω resistor for status indication. Typically GREEN 8 LED_B I Connect to an LED via 470- Ω resistor for status indication. Typically RED 9 SLEEP O Force SLEEP (5 sec low power) 10 CLK I/O 10-k Ω pull-up resistor to 3.3-V supply. Please contact field for GUI application assitance. 11 DATA I/O 10-k Ω pull-up resistor to 3.3-V supply. Please contact field for GUI application assitance. 12 PWM Output A, controls one half of the full bridge in a phase-shifted full bridge. Switching PWM_A O deadtimes must be externally generated. 13 FOD O Select for FOD threshold 14 RESERVED O Reserved. Leave open. 15 COIL_1 O Select first coil 16 COIL_2 O Select second coil 17 COIL_3 O Select third coil 18 SNOOZE O Force SNOOZE (500ms low power) 19 RESERVED O Reserved, leave this pin open. 20 RESERVED I Reserved, connect to GND. 21 SNOOZE_CHG O Charge the snooze cap 22 FOD_CAL O Select for FOD calibration resistor 23 BUZ_AC O AC Buzzer Output. Outputs a 400-ms, 4-kHz AC pulse when charging begins. 24 DC Buzzer Output. Outputs a 400-ms DC pulse when charging begins. This could also be BUZ_DC O connected to an LED via 470- Ω resistor. 25 LED_C I/O Connect to an LED via 470- Ω resistor for status indication. Typically YELLOW 26 RESERVED I/O Reserved, connect to GND. 27 RESERVED I/O Reserved, leave this pin open. 28 RESERVED I/O Reserved, leave this pin open. 29 RESERVED I/O Reserved, leave this pin open. 30 RESERVED I/O Reserved, leave this pin open. 31 GND I/O Reserved, connect to GND. Copyright © 2013, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: bq500412 |
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