参数资料
型号: NDTD1203C
厂商: Murata Power Solutions Inc
文件页数: 3/7页
文件大小: 0K
描述: CONV DC/DC 3W 12VIN 3.3V DIP24
产品培训模块: Low Power DC/DC Converters <5W
标准包装: 15
系列: NDTD
类型: 隔离
输出数: 2
电压 - 输入(最小): 9V
电压 - 输入(最大): 18V
Voltage - Output 1: 3.3V
Voltage - Output 2: -3.3V
电流 - 输出(最大): 454mA,454mA
电源(瓦) - 制造商系列: 3W
电压 - 隔离: 1kV(1000V)
安装类型: 通孔
封装/外壳: 24-DIP 模块(600 mil,8 引线)
尺寸/尺寸: 1.27" L x 0.58" W x 0.27" H(32.3mm x 14.7mm x 6.9mm)
包装: 管件
工作温度: -40°C ~ 85°C
效率: 73%
电源(瓦特)- 最大: 3W
产品目录页面: 2716 (CN2011-ZH PDF)
其它名称: 811-1371-5
NDTD Series
Isolated 3W Wide Input Dual Output DC/DC Converters
TERMINOLOGY
LINE REGULATION
The percentage change in output voltage between low intput voltage and high intput voltage, measured with ?xed output load i.e. a 5V part with an output voltage of 5.05V @ high
input voltage and 5.03V @ low input voltage would have a line regulation of 0.4%.
Line regulation =
V OUT (Low Input V) - V OUT (High Input V)
V OUT (Nominal Input V)
x100%
Where V OUT (Nominal Input V) is 5V.
APPLICATION NOTES
Recommended Input & Output Capacitors
Although these converters will work without external capacitors, they are necessary in order to guarantee the full parametric performance over the full line and load range. All
parts have been tested and characterized using the following values and test circuit.
Input Voltage
5V, 12V
24V, 48V
C IN
100μF, 25V (0.25Ω at 100kHz)
10μF, 100V (1.5Ω at 100kHz)
Output Voltage
3.3V, 5V
12V, 15V
C OUT
100μF, 25V (0.25Ω at 100kHz)
47μF, 25V (0.4Ω at 100kHz)
Test circuit
+ V OUT
Supply + V IN
Supply - V IN
C IN
+ V IN
NDTD
- V IN
OV
C OUT
C OUT
- V OUT
Re?ected Ripple Current Measurement
Current
12μH
Probe
Supply +V IN
+V IN
+V OUT
C OUT
Load
C 1
C IN
NDTD
OV
C OUT
Load
Supply -V IN
-V IN
-V OUT
C 1 = 220μF, ESR < 0.1Ω at 100kHz
Cross Regulation
Load regulation is at its best when the positive and negative loads are balanced. When the loads are asymmetric, the negative output is not as tightly regulated as the positive out-
put. To meet ripple speci?cation a total minimum load of 25% full load is required, however, the NDTD can be used with much lighter loading at the expense of increased ripple. A
small load is required on the negative output of 150mW to ensure the maximum negative output voltage is not exceeded.
www.murata-ps.com/support
KDC_NDTD.E05 Page 3 of 7
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