Datenblatt-Suchmaschine für elektronische Bauteile |
|
LM34919C-Q1 Datenblatt(PDF) 6 Page - Texas Instruments |
|
|
LM34919C-Q1 Datenblatt(HTML) 6 Page - Texas Instruments |
6 / 29 page LM34919C-Q1 SNVS831A – SEPTEMBER 2013 – REVISED DECEMBER 2013 www.ti.com Pin Descriptions (continued) PIN PIN NUMBER NAME DESCRIPTION APPLICATION INFORMATION NUMBER (WSON-12) B2 9 PGD Power Good Open drain. Logic output indicates when the voltage at the FB pin has increased above 92% of the internal reference. The falling threshold for PGD is 90% of the internal reference. An external pull-up resistor connecting PGD pin to a voltage less than 14 V is required. B3 8 SS Soft-start An internal current source charges an external capacitor to 2.52 V, providing the soft-start function. C1 2 ISEN Current sense The re-circulating current flows through the internal sense resistor and out of this pin to the free- wheeling diode. Valley current limit is nominally set at 0.64 A. C2 3 EN Enable Pin Pull low to disable the part for low shutdown current. Shutdown threshold is 1.3 V (typ). C3 10 VCC Output from the startup regulator Nominally regulated at 7.0 V. An external voltage (7 V - 14 V) can be applied to this pin to reduce internal dissipation. An internal diode connects VCC to VIN. D1 1 VIN Input supply voltage Nominal input range is 4.5 V to 50 V. D2 12 SW Switching Node Internally connected to the buck switch source. Connects to the inductor, free-wheeling diode, and bootstrap capacitor. D3 11 BST Boost pin for bootstrap capacitor Connect a 0.022 µF capacitor from SW to this pin. The capacitor is charged from VCC via an internal diode during each off-time. EP (WSON Only) Exposed pad should be connected to RTN pin and system ground for proper cooling. 6 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated Product Folder Links: LM34919C-Q1 |
Ähnliche Teilenummer - LM34919C-Q1 |
|
Ähnliche Beschreibung - LM34919C-Q1 |
|
|
Link URL |
Privatsphäre und Datenschutz |
ALLDATASHEETDE.COM |
War ALLDATASHEET hilfreich? [ DONATE ] |
Über Alldatasheet | Werbung | Kontakt | Privatsphäre und Datenschutz | Linktausch | Hersteller 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 |