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BQ79600-Q1 Folha de dados(PDF) 3 Page - Texas Instruments |
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BQ79600-Q1 Folha de dados(HTML) 3 Page - Texas Instruments |
3 / 71 page 5 Pin Configuration and Functions 1 16 2 15 BAT 3 14 4 13 5 12 COMLN 6 11 7 8 COMHP COMLP NFAULT VIO CVDD 9 10 nUART/SPI (SPI_RDY) 16-TSSOP nCS MOSI/RX MISO/TX 5.1x6.6x1.2(mm) No thermal pad DVDD INH GND SCLK COMHN Figure 5-1. PW Package 16-Pin TSSOP Top View Pin Functions PIN TYPE(1) DESCRIPTION NAME NO. VIO 3 P Power supply input for UART/SPI input/output pins. Decouple with a 0.1μF capacitor to GND. VIO should be powered before SCLK, nCS, RX/MOSI, TX/MISO, NFAULT, nUART/SPI (SPI_RDY) is driven. SCLK 6 DI SPI clock input. If SPI interface is used, this pin is connected to SPI master controller. Connect to GND with a 10-100kohm pull-down resistor. If not used, connect to GND. nCS 7 DI Active low chip select pin for SPI interface. Connect to VIO with 10-100kohm pull-up resistor in SPI mode. Cannot hardwire to GND in SPI mode. Connect to GND in UART mode. RX/MOSI 4 DI UART receiver input or SPI master out slave in. Connect to VIO with a 10-100kohm pull-up resistor. Don't leave it unconnected. TX/MISO 5 DO UART transmitter output or SPI master in slave out. Pull up to VIO with a 10-100kohm pull-up resistor at MCU side. MISO pin drives high in SPI idle mode, cannot directly support SPI multidrop, if multidrop is needed, add a tri-state buffer between BQ79600-Q1 and MCU. NFAULT 2 DO Fault indication output. Open drain active low. Pull up to VIO with 100kohm resistor. Connect NFAULT to host MCU GPIO. If not used, connect to GND. nUART/SPI (SPI_RDY) 8 DI/O If used as UART mode, connect this pin to GND. If used as SPI mode, connect to VIO through 10-100kohm pull up resistor and connect this pin to MCU GPIO. This pin is used as an input pin to select SPI or UART interface before device finishes wakeup/reset initialization (SPI communication is ready). If SPI mode is selected, SPI_RDY has to be used by host to decide if read/write can be initiated or needing further wait. Refer to Section 7.3.2.1.2.2.1 details. DVDD 1 P 1.8V regulated output. DVDD supplies the internal digital circuits. Bypass DVDD with a 0.22μF (recommended) or a 0.47μF capacitor to GND. GND 9 P Ground. CVDD 14 P Dedicated 5V supply used for the daisy chain communications. Decouple with a 0.22μF (recommended) or a 0.47μF to GND. COMHN 12 AC-I/O This is an AC coupled bi-directional I/O pin for daisy chain (VIF) communication. Do not apply external DC voltage to this pin. Shall connect to COMLN/P of adjacent device through proper isolation, see Section 7.3.2.1.1. Leave unconnected if (Ring Architecture) not used. COMHP 13 AC-I/O COMLN 11 AC-I/O This is an AC coupled bi-directional I/O pin for daisy chain (VIF) communication. Do not apply external DC voltage to this pin. Shall connect to COMHN/P of adjacent device through proper isolation, see Section 7.3.2.1.1. Leave unconnected if (Ring Architecture) not used. COMLP 10 AC-I/O INH 16 HV-O Inhibit pin (PMOS open drain) to control system voltage regulators, connect 100kohm resistor to GND. If reverse wake up feature is not used, connect this pin to BAT pin. Don’t leave this pin floating. BAT 15 HV-P Battery supply Input. Supply internal LDOs and wakeup circuit. Connect to external supply through 10ohm resistor. Bypass to GND with 0.1μF. (1) DI = digital input, DO = digital output, HV = high voltage www.ti.com BQ79600-Q1 SLUSDS1A – NOVEMBER 2019 – REVISED AUGUST 2020 Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback 3 Product Folder Links: BQ79600-Q1 |
Nº de peça semelhante - BQ79600-Q1_V01 |
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Descrição semelhante - BQ79600-Q1_V01 |
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