 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
BQ2084DBT Datasheet(PDF) 7 Page - Texas Instruments |
|
||||||||||||||||||||||||||||||
BQ2084DBT Datasheet(HTML) 7 Page - Texas Instruments |
|
|
7 / 69 page  www.ti.com FUNCTIONAL DESCRIPTION OSCILLATOR FUNCTION bq2084-V143 SLUS732 – SEPTEMBER 2006 Terminal Functions TERMINAL I/O DESCRIPTION NO. NO. NAME TSSOP QFN DISP 17 2 I Display control for the LED drivers LED1 through LED5 CLKOUT 35 20 O 32.768-kHz output to the bq29312 FILT 32 17 I Analog input connected to the external PLL filter EVENT 25 10 I Input from bq29312 XALERT output LED1 24 9 O LED2 23 8 O LED3 22 7 O LED display segments that each may drive an external LED LED4 21 6 O LED5 20 5 O MRST 26 11 I Master reset input that forces the device into reset when held high 7, 13, 14, 36, NC 21, 29, 35 – No connection 37 PFIN 18 3 I Active low input to detect secondary protector output status PRES 5 27 I Active low input to sense system insertion PU 4 26 O Output to pull up the PRES pin for detection Register backup that provides backup potential to the bq2084-V143 data RBI 9 31 I registers during periods of low operating voltage. RBI accepts a storage capacitor or a battery input. SAFE 12 34 O Active low output for additional level of safety protection; e.g., fuse blow. SCLK 6 28 O Communication clock to the bq29312 SDATA 10 32 I/O Data transfer to and from bq29312 SMBus clock open-drain bidirectional pin used to clock the data transfer to and SMBC 15 36 I/O from the bq2084-V143 SMBus data open-drain bidirectional pin used to transfer address and data to SMBD 16 1 I/O and from the bq2084-V143 SR1 28 13 I Connections for a small-value sense resistor to monitor the battery charge- and discharge-current flow SR2 27 12 I TS 2 24 I Thermistor voltage input connection to monitor temperature VDDA 31 16 I Positive supply for analog circuitry VDDD 8 30 I Positive supply for digital circuitry and I/O pins VIN 1 25 I Single-cell voltage input from the bq29312 VSSA 3, 29, 30 14, 15 I Negative supply for analog circuitry VSSD 11, 19, 38 4, 22, 23, 33 I Negative supply for digital circuitry XCK1/VSSA 34 19 I 32.768-kHz crystal oscillator input pin or connected to VSSA if the internal oscillator is used 32.768-kHz crystal oscillator output pin or connected to a 100-k Ω, 50 ppm or XCK2/ROSC 33 18 O better resistor if the internal oscillator is used The oscillator of the bq2084-V143 can be set up for an internal or external operation. As the bq2084-V143 powers up it automatically attempts to start the internal oscillator, but if a 100-k Ω resistor is not connected to ROSC (pin 33), then it attempts to start the oscillator using an external 32.768-kHz crystal. Either the 100-k Ω ROSC resistor OR the 12 pF 32.768-kHz crystal should be mounted, NOT both. The performance of the internal oscillator depends on the tolerance of the 100-k Ω resistor connected between 7 Submit Documentation Feedback |
Similar Part No. - BQ2084DBT |
|
Similar Description - BQ2084DBT |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
