參數(shù)資料
型號(hào): PTMA401120P2AZT
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源模塊
英文描述: 1-OUTPUT 10 W DC-DC REG PWR SUPPLY MODULE
封裝: ROHS COMPLIANT, DIP-6
文件頁(yè)數(shù): 3/35頁(yè)
文件大?。?/td> 1867K
代理商: PTMA401120P2AZT
www.ti.com
t Time 20 ms/div
VOUT
(1 V/div)
VIN (10 V/div)
IIN (100 mA/div)
Output Voltage Trim Adjustment
SLTS259B – FEBRUARY 2006 – REVISED MAY 2007
APPLICATION INFORMATION (continued)
Figure 13. Power-up Waveforms
An external resistor is required to increase or decrease the output voltage set point of the module by
± 10 %.
The resistor, RTRIM, must be connected between the TRIM pin (pin 5) and VO+ (pin 4) to decrease the output
voltage, or between the TRIM pin and VO– (pin 6) to increase the output voltage. A 0.05-W rated resistor can be
used. The tolerance should be 1%, with a temperature stability of 100 ppm/
°C (or better). Place the resistor
close to the converter and connect it using dedicated PCB traces (see Figure 14). Table 1 gives the nearest
standard value of external resistor for the common voltages within each model's adjust range.
Table 1. Standard Values of RTRIM for Common Output Voltages
PTMA403033
PTMA402050
PTMA401120
VO
RTRIM (k)
VO
RTRIM (k)
VO
RTRIM (k)
(required)
down
up
down
up
down
up
3.0 V
118
4.5 V
18.7
10.8 V
64.9
3.1 V
187
4.6 V
24.9
11.0 V
80.6
3.2 V
392
4.7 V
35.7
11.2 V
105
3.3 V
open
4.8 V
57.6
11.4 V
143
3.4 V
249
4.9 V
121
11.6 V
221
3.5 V
124
5.0 V
open
11.8 V
464
3.6 V
82.5
5.1 V
124
12.0 V
open
5.2 V
61.9
12.2 V
118
5.3 V
40.2
12.4 V
57.6
5.4 V
29.4
12.6 V
36.5
5.5 V
23.2
12.8 V
26.1
13.0 V
19.6
13.2 V
15.8
11
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PTMA402050A1AZ 功能描述:DC/DC轉(zhuǎn)換器 10W 36V-75Vin 1500V Iso DC-DC Converter RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓(標(biāo)稱): 輸出端數(shù)量:1 輸出電壓(通道 1):3.3 V 輸出電流(通道 1):600 mA 輸出電壓(通道 2): 輸出電流(通道 2): 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸: