Moteur de recherche de fiches techniques de composants électroniques |
|
TPS43335QDAPRQ1 Fiches technique(PDF) 11 Page - Texas Instruments |
|
|
TPS43335QDAPRQ1 Fiches technique(HTML) 11 Page - Texas Instruments |
11 / 42 page TPS43335-Q1 TPS43336-Q1 www.ti.com SLVSAV6B – JUNE 2011 – REVISED JULY 2012 PIN FUNCTIONS (continued) NAME NO. I/O DESCRIPTION Soft-start or tracking input for buck controller BuckB. The buck controller regulates the FBB voltage to the lower of 0.8 V or the SSB pin voltage. An internal pullup current source of 1 µA is present at the pin, and an appropriate SSB 25 O capacitor connected here can be used to set the soft-start ramp interval. A resistor-divider connected to another supply can also be used to provide a tracking input to this pin. If an external clock is present on this pin, the device detects it and the internal PLL locks onto the external clock. This overrides the internal oscillator frequency. The device can synchronize to frequencies from 150 kHz to 600 kHz. A high logic level on this pin ensures forced continuous-mode operation of the buck controllers and inhibits SYNC 20 I transition to low-power mode. An open or low allows discontinuous mode operation and entry into low-power mode at light loads. On the TPS43332, a high level enables frequency-hopping spread spectrum, whereas an open or a low level disables it. Battery input sense for the boost controller. If the boost controller is enabled and the voltage at VBAT falls below VBAT 1 I the boost threshold, the device activates the boost controller and regulates the voltage at VIN to the programmed boost output voltage. Main Input pin. This is the buck controller input pin as well as the output of the boost regulator. Additionally, it VIN 38 I powers the internal control circuits of the device. An external capacitor on this pin is required to provide a regulated supply for the gate drivers of the buck and boost controllers. A capacitance in the order of 4.7 µF is recommended. The regulator can be used such that it is VREG 35 O either powered from VIN or EXTSUP. This pin has current-limit protection and should not be used to drive any other loads. Copyright © 2011–2012, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Link(s): TPS43335-Q1 TPS43336-Q1 |
Numéro de pièce similaire - TPS43335QDAPRQ1 |
|
Description similaire - TPS43335QDAPRQ1 |
|
|
Lien URL |
Politique de confidentialité |
ALLDATASHEET.FR |
ALLDATASHEET vous a-t-il été utile ? [ DONATE ] |
À propos de Alldatasheet | Publicité | Contactez-nous | Politique de confidentialité | Echange de liens | Fabricants 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 |