 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
BQ24072T Datasheet(PDF) 7 Page - Texas Instruments |
|
|
||||||||||||||||||||||||||||||
BQ24072T Datasheet(HTML) 7 Page - Texas Instruments |
|
|
7 / 36 page  1 2 3 4 12 11 10 9 ILIM OUT OUT CHG TS BAT BAT CE 16 15 14 13 5 6 7 8 bq24075T bq24079T RGT TOP VIEW 1 2 3 4 12 11 10 9 ILIM OUT OUT CHG TS BAT BAT CE 16 15 14 13 5 6 7 8 bq24072T bq24072T bq24075T, bq24079T www.ti.com SLUS937A – DECEMBER 2009 – REVISED APRIL 2010 DEVICE INFORMATION PIN DIAGRAM Pin out designations are not final. Subject to change. TERMINAL FUNCTIONS PIN NUMBER NAME I/O bq24072T bq24075T DESCRIPTION bq24079T TS 1 1 I/O External NTC Thermistor Input. Connect the TS input to the center tap of a resistor divider from VIN to GND with the NTC in parallel with the bottom resistor to monitor the NTC in the battery pack. For applications that do not utilize the TS function, set the resistor divider to be a 20% ratio. See the Battery Pack Temperature Monitoring section for details on calculating the resistor values. BAT 2, 3 2, 3 I/O Charger Power Stage Output and Battery Voltage Sense Input. Connect BAT to the positive terminal of the battery. Bypass BAT to VSS with a 4.7mF to 47mF ceramic capacitor. CE 4 4 I Charge Enable Active-Low Input. Connect CE to a high logic level to place the battery charger in standby mode. In standby mode, OUT is active and battery supplement mode is available. Connect /CE to a low logic level to enable the battery charger. CE is internally pulled down with ~285k Ω. Do not leave CE unconnected to ensure proper operation. EN2 5 5 I Input Current Limit Configuration Inputs. Use EN1 and En2 to control the maximum input current and enable USB compliance. See Table 1 for the description of the operation states. EN1 6 6 I EN1 and EN2 are internally pulled down with ~285k Ω. Do not leave EN1 or EN2 unconnected to ensure proper operation. PGOOD 7 7 O Open-Drain Power Good Status Indication Output. PGOOD pulls to VSS when a valid input source is detected. PGOOD is high-impedance when the input power is not within specified limits. Connect PGOOD to the desired logic voltage rail using a 1k Ω to 100kΩ resistor, or use with an LED for visual indication. VSS 8 8 – Ground. Connect to the thermal pad and to the ground rail of the circuit. CHG 9 9 O Open-Drain Charging Status Indication Output. CHG pulls to VSS when the battery is charging. CHG is high-impedance when charging is complete or when the charger is disabled. CHG flashes to indicate a timer fault. Connect CHG to the desired logic voltage rail using a 1k Ω to 100kΩ resistor, or use with an LED for visual indication. OUT 10, 11 10, 11 O System Supply Output. OUT provides a regulated output when the input is below the OVP threshold and above the regulation voltage. When the input is out of the operation range, OUT is connected to VBAT except when SYSOFF is high. Connect OUT to the system load. Bypass OUT to VSS with a 4.7mF to 47mF ceramic capacitor. ILIM 12 12 O Adjustable Current Limit Programming Input. Connect a 1.07k Ω to 7.5kΩ resistor from ILIM to VSS to program the maximum input current (EN2=1, EN1=0). The input current includes the system load and the battery charge current. Leaving ILIM unconnected disables all charging. Copyright © 2009–2010, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Link(s): bq24072T bq24075T bq24079T |
Similar Part No. - BQ24072T |
|
Similar Description - BQ24072T |
|
|
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
