参数资料
型号: ULS-3.3/20-D48NH-C
厂商: Murata Power Solutions Inc
文件页数: 22/24页
文件大小: 0K
描述: CONVERT DC/DC 3.3V @ 20A NEG CC
标准包装: 128
系列: ULS
类型: 隔离
输出数: 1
电压 - 输入(最小): 36V
电压 - 输入(最大): 75V
Voltage - Output 1: 3.3V
电流 - 输出(最大): 20A
电源(瓦) - 制造商系列: 66W
电压 - 隔离: 2.25kV(2250V)
特点: 具有远程开/关功能
安装类型: 通孔
封装/外壳: 8-DIP 模块,1/16 砖
尺寸/尺寸: 1.30" L x 0.90" W x 0.40" H(33.0mm x 22.9mm x 10.2mm)
包装: 托盘
工作温度: -40°C ~ 85°C
效率: 90%
电源(瓦特)- 最大: 66W
ULS 60-Watt Series
Sixteenth-brick DOSA-Compatible,
Isolated DC/DC Converters
Dynamic control of the remote on/off function is best accomplished with a
mechanical relay or an open-collector/open-drain drive circuit (optically isolated
if appropriate). The drive circuit should be able to sink appropriate current (see
Performance Speci?cations) when activated and withstand appropriate voltage
when deactivated. Applying an external voltage to pin 2 when no input power is
applied to the converter can cause permanent damage to the converter.
+VIN
ON/OFF
CONTROL
+Vcc
13V CIRCUIT
5V CIRCUIT
–VIN
Figure 5. Driving the Negative Logic On/Off Control Pin
(simpli?ed circuit)
OUTPUT VOLTAGE ADJUSTMENT
Trim Equations
Trim Down
+VIN
+VOUT
R T DOWN (k ? ) =
5.11
Δ
– 10.22
+SENSE
Where Δ ???????????????????????? ?
V OUT –V NOM
V NOM
ON/OFF
CONTROL
TRIM
R TRIM UP
LOAD
Trim Up
–SENSE
RT UP (k ? ) =
5.11 × V NOM x (1 + Δ)
1.225 × Δ
5.11
Δ
– 10.22
–VIN
–VOUT
Where Δ ???????????????????????? ?
V OUT –V NOM
V NOM
Figure 6. Trim Connections To Increase Output Voltages
Connect sense to its respective V OUT pin if sense is not used with a remote load.
Note: “Δ” is always a positive value.
“V NOM ” is the nominal, rated output voltage.
“V OUT ” is the desired, changed output voltage.
+VIN
+VOUT
+SENSE
ON/OFF
CONTROL
TRIM
R TRIM DOWN
LOAD
–SENSE
–VIN
–VOUT
Figure 7. Trim Connections To Decrease Output Voltages
www.murata-ps.com/support
MDC_ULS Series.B31 Page 22 of 24
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