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BQ32002D Datasheet(PDF) 21 Page - Texas Instruments |
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BQ32002D Datasheet(HTML) 21 Page - Texas Instruments |
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21 / 29 page  OSCI OSCO VBACK GND VCC SCL SDA ____ IRQ 1 µF 0.22F 21 BQ32002 www.ti.com SLUSA96B – AUGUST 2010 – REVISED APRIL 2016 Product Folder Links: BQ32002 Submit Documentation Feedback Copyright © 2010–2016, Texas Instruments Incorporated 9 Power Supply Recommendations The BQ32002 is designed to operate from an input voltage supply, VCC, range between 3 and 3.6 V. The user must place a minimum of 1-µF ceramic bypass capacitor rated for at least the maximum voltage as close as possible to VCC and GND pin. 10 Layout 10.1 Layout Guidelines The VCC pin should be bypassed to GND using a low-ESR ceramic bypass capacitor with a minimum recommended value of 1 µF. This capacitor must be placed as close to the VCC and GND pins as possible with thick trace or ground plane connection to the device GND pin. Locate the 32.768-kHz crystal oscillator as close as possible to the OSCI and OSCO pins. This will minimize stray capacitance. 10.2 Layout Example Figure 11. Recommended PCB Layout |
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