Motore di ricerca datesheet componenti elettronici |
|
IRF7821 Scheda tecnica(PDF) 1 Page - International Rectifier |
|
IRF7821 Scheda tecnica(HTML) 1 Page - International Rectifier |
1 / 15 page IRDC3146EVAL 1 Rev.1.0 7/28/04 www.irf.com SPECIFICATION DATA INTRODUCTION IRU3146 EVALUATION BOARD USER GUIDE INPUT/OUTPUT CONNECTIONS 2-Phase VIN = 12V VOUT1 = 1.8V IOUT1 = 35A DVOUT = 50mV FS = 300KHz The following is the input/output connections: Inputs: JP1: Vin and Gnd JU4: VCC and Gnd JU5: VCL/VCH1/VCH2 Outputs: JP2: Vout1 for Dual output JP5: Vout2 for Dual output JP4: Vout for 2-phase application The connection points for dual output application are shown in Figure 1. Connect the power supply cables according to this figure, minimizing wire lengths to re- duce losses in the wire. Test points J1, J2, J3 and J4 provide easy connection for oscilloscope voltage probe to monitor the inductor points for each PWM section and output voltages. The IRU3146 IC is a Dual synchronous Buck controller, providing a cost-effective, high performance and flexible solution. The IRU3146 can be configured as a 2-inde- pendent or as a 2-phase controller. The 2-phase configu- ration is ideal for high current applications. The IRU3146 features 180 8 out of phase operation which reduces the required input/output capacitance and results in a fewer number of capacitors needed. Other key features offered by this device include two independent programmable soft starts, programmable switching frequency up to 400KHz per phase, Hiccup current limit and an under voltage lockout function. The current limit is provided by sensing the lower MOSFET's on-resistance for optimum cost and performance. This reference board is designed to demonstrate all the features of IRU3146 and can be configured to two types of applications: 1) Dual outputs application (Independent Outputs) 2) 2-phase application (Single Output) This user guide contains the schematic and bill of materials for each of these applications, and the design guidelines are described in data sheet. The MOSFETs sockets on the evaluation board are dual layout for SOIC-8 and Direct FET footprint. Dual Outputs VIN = 12V VOUT1 = 2.5V IOUT1 = 10A VOUT2 = 1.8V IOUT1 = 10A DVOUT = 50mV FS = 300KHz Scope Probe connections: J1 and J3: Inductor point for L2 and L3 J2 and J4: Outputs for Vout1 and Vout2 |
Codice articolo simile - IRF7821 |
|
Descrizione simile - IRF7821 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEETIT.COM |
Lei ha avuto il aiuto da alldatasheet? [ DONATE ] |
Di alldatasheet | Richest di pubblicita | contatti | Privacy Policy | scambio Link | Ricerca produttore 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 |