Electronic Components Datasheet Search |
|
TEA1751LT Datasheet(PDF) 7 Page - NXP Semiconductors |
|
TEA1751LT Datasheet(HTML) 7 Page - NXP Semiconductors |
7 / 29 page TEA1751T_LT_2 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 02 — 23 December 2009 7 of 29 NXP Semiconductors TEA1751T; TEA1751LT GreenChip III SMPS control IC 7.1.2 Supply management All internal reference voltages are derived from a temperature compensated and trimmed on-chip band gap circuit. Internal reference currents are derived from a temperature compensated and trimmed on-chip current reference circuit. 7.1.3 Latch input Pin LATCH is a general purpose input pin, which can be used to switch off both converters. The pin sources a current IO(LATCH) (80 μA typical). Switching off both converters is stopped as soon as the voltage on this pin drops below 1.25 V. At initial start-up the switching is inhibited until the capacitor on the LATCH pin is charged above 1.35 V (typical). No internal filtering is done on this pin. An internal zener clamp of 2.9 V (typical) protects this pin from excessive voltages. Fig 4. Start-up sequence, normal operation and restart sequence VCC LATCH PROTECTION PFCSENSE PFCDRIVER FBSENSE FBDRIVER FBCTRL VOSENSE VO charging VCC capacitor starting converters normal operation protection restart soft start soft start IHV Vstart(VINSENSE) Vto(FBCTRL) Vstartup Vth(UVLO) Vtrip VEN(LATCH) Vstart(fb) VINSENSE 014aaa156 |
Similar Part No. - TEA1751LT |
|
Similar Description - TEA1751LT |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | 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 |