Electronic Components Datasheet Search |
|
PTEA404120N2AD Datasheet(PDF) 9 Page - Texas Instruments |
|
|
PTEA404120N2AD Datasheet(HTML) 9 Page - Texas Instruments |
9 / 14 page www.ti.com 2 3 PTEA404120P Remote On/Off 1=Disable Q1 BSS138 −VI −VI T − Time − 4 ms/div VO (5 V/div) Q1 Vgs (5 V/div) Adjusting the Output Voltage of the 50-W Rated PTEA404120 Isolated DC/DC Converter R1 + 5.11 V O (100 ) D%) 1.225 D% * 511 D% * 10.22 (kW) (1) PTEA404120 SLTS274A – DECEMBER 2006 – REVISED JANUARY 2007 Figure 5. Recommended Control or Remote On/Off Input Turn-On: With a valid input source voltage applied, the converter produces a regulated output voltage within 10 ms of the output being enabled. Figure 6 shows the output response of the PTEA following the removal of the logic-low signal from the Remote On/Off (pin 2); see Figure 5. This corresponds to the drop in Q1 VGS in Figure 6. Although the rise-time of the output voltage is short (<5 ms), the indicated delay time will vary depending upon the input voltage and the module’s internal timing. The waveforms were measured with 48 VDC input voltage, and a 4-A resistive load. Figure 6. Power Up The output voltage adjustment of the PTEA404120 isolated DC/DC converter follows the standard adopted by popular 1/8-brick DC/DC converters. Adjustment is accomplished with a single external resistor that can adjust the output voltage from –40% to +10% of the nominal set-point voltage. The placement of the resistor determines the direction of adjustment, up or down, and the value of the magnitude of adjustment. To ensure good VO set-point accuracy, a 1% maximum tolerance resistor is recommended. Adjust Up: To increase the output voltage add a resistor, R1, between VO Adjust (pin 6) and Sense(+) (pin 7). Adjust Down: Add a resistor, (R2), between VO Adjust (pin 6) and Sense(–) (pin 5). Refer to Figure 7 for the placement of the required resistor, R1 or (R2). The values of R1 [adjust up], and (R2) [adjust down], can be calculated using the following formulas. 9 Submit Documentation Feedback |
Similar Part No. - PTEA404120N2AD |
|
Similar Description - PTEA404120N2AD |
|
|
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 |