Electronic Components Datasheet Search |
|
SP7685EB Datasheet(PDF) 3 Page - Exar Corporation |
|
SP7685EB Datasheet(HTML) 3 Page - Exar Corporation |
3 / 13 page 3 Date: 6/20/06 Rev T SP7685, 1.2A Buck/BoostCharge Pump LED Driver © 2006 Sipex Corporation PIN DESCRIPTION PIN NUMBER PIN NAME DESCRIPTION 1VIN Input Voltage for the charge pump. Decouple with 4.7µF ceramic capacitor close to the pins of the IC. 2C1 Positive input for the external flying capacitor. Connect a ceramic 1µF capacitor close to the pins of the IC. 3C2 Negative input for the external flying capacitor. Connect a ceramic 1µF capacitor close to the pins of the IC. 4 FLASH Logic input to toggle operation between FLASH and TORCH mode. In TORCH mode FB is regulated to the internal 50mV reference. In FLASH mode FB reference voltage can be adjusted by changing the resistor from RSET pin to ground. Choose the external current sense resistor (R SENSE ) based on desired current in TORCH mode. This pin does not have an internal pull-up/pull- down; do not leave this pin floating. 5EN Shutdown control input. Connect to VIN for normal operation, connect to ground for shutdown. This pin does not have an internal pull-up/pull-down; do not leave this pin floating. 6RSET Connect a resistor from this pin to ground. When in FLASH mode (FLASH = High) this resistor sets the current regulation point according to the following: VFB = RSET*14uA/5 (Flash Mode) 7FB Feedback input for the current control loop. Connect directly to the current sense resistor. 8SGND Internal ground pin. Control circuitry returns current to this pin. 9PGND Power ground pin. Flying capacitor current returns through this pin. 10 VOUT Charge Pump Output Voltage. Decouple with an external capacitor. At least 1µF is recommended. Higher capacitor values reduce output ripple |
Similar Part No. - SP7685EB |
|
Similar Description - SP7685EB |
|
|
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 |