Motor de Búsqueda de Datasheet de Componentes Electrónicos |
|
TPS53219ARGTT Datasheet(PDF) 11 Page - Texas Instruments |
|
|
TPS53219ARGTT Datasheet(HTML) 11 Page - Texas Instruments |
11 / 35 page 8 12 PGND SW TPS53219A OCP ZC XCON 4 RF FCCM 14 VBST 10 VDRV PWM 3 VFB TRIP Auto-skip/FCCM + + Delay 0.6 V +10/15% 0.6 V –5/10% 16 PGOOD Control Logic UDG-11274 10 mA + + 0.6 V –30% 0.6 V +20% + + 2 EN Ramp Comp Enable/SS Control + + + 0.6 V 1 x(-1/8) x(1/8) Frequency Setting Detector 13 DRVH 11 DRVL tON One- Shot Auto-skip UV OV 7 GND 5 MODE 6 VDD 9 VREG LDO Linear Regulator EN TPS53219A www.ti.com SLUSAU4A – DECEMBER 2011 – REVISED DECEMBER 2015 7.2 Functional Block Diagram 7.3 Feature Description 7.3.1 Enable and Soft-Start When the EN pin voltage rises above the enable threshold voltage (typically 1.4 V), the controller enters its start- up sequence. The internal LDO regulator starts immediately and regulates to 6.2 V at the VREG pin. The controller then uses the first 250 µs to calibrate the switching frequency setting resistance attached to the RF pin and stores the switching frequency code in internal registers. However, switching is inhibited during this phase. In the second phase, an internal DAC starts ramping up the reference voltage from 0 V to 0.6 V. Depending on the MODE pin setting, the ramping up time varies from 0.7 ms to 5.6 ms. Smooth and constant ramp-up of the output voltage is maintained during start-up regardless of load current. Copyright © 2011–2015, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: TPS53219A |
Número de pieza similar - TPS53219ARGTT |
|
Descripción similar - TPS53219ARGTT |
|
|
Enlace URL |
Política de Privacidad |
ALLDATASHEET.ES |
¿ALLDATASHEET es útil para Ud.? [ DONATE ] |
Todo acerca de Alldatasheet | Publicidad | Contáctenos | Política de Privacidad | Intercambio de Enlaces | Lista de Fabricantes 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 |