参数资料
型号: V48B48M250B2
厂商: Vicor Corporation
文件页数: 8/11页
文件大小: 0K
描述: CONVERTER MOD DC/DC 48V 250W
设计资源: Maxi/Mini/Micro Design Guide, Appl Manual
标准包装: 1
系列: 迷你型
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: 48V
电流 - 输出(最大): *
电源(瓦) - 制造商系列: 250W
电压 - 隔离: *
特点: *
安装类型: 通孔
封装/外壳: 模块
尺寸/尺寸: 2.28" L x 2.20" W x 0.54" H(57.9mm x 55.9mm x 13.7mm)
包装: 散装
工作温度: -55°C ~ 100°C
效率: *
电源(瓦特)- 最大: *
48 V Input
SECONDARY CONTROL - SC PIN
Output Voltage Programming
The output voltage of the converter can be adjusted or
programmed via fixed resistors, potentiometers or voltage
DACs. See Figure 8.
PARALLEL BUS - PR PIN
Parallel Operation
The PR pin supports paralleling for increased power with N+1
(N+M) redundancy. Modules of the same input voltage, output
voltage, and power level will current share if all PR pins are
suitably interfaced.
Compatible interface architectures include the following:
to a single communication bus through 0 . 001 μ F (500 V)
Error Amplifier
+OUT
+S
Ru
Trim Up
AC coupled single-wire interface. All PR pins are connected
capacitors. This interface supports current sharing and is fault
tolerant except for the communication bus. Up to three
+
1 k Ω
1.23 V
SC
0.033 uF
Rd
Trim Down
Load
converters may be paralleled by this method. See Figure 9.
Transformer coupled interface. For paralleling four or more
converters a transformer coupled interface is required. See
-S
Figure 10.
100 Ω typ.
–OUT
For details on parallel operation please refer to the
Design Guide & Applications Manual for Maxi, Mini, Micro Family.
R d (ohms) =
1,000 Vout
Vnom – Vout
+
4.7 nF
+IN
Figure 8 — Output voltage trim down and trim up circuit.
R U (ohms) = 1,000 (Vout –1.23) Vnom – 1,000
1.23 (Vout – Vnom)
Trim Down
0.2 μF
0.001 μF Z1 *
Low inductance 4.7 nF
ground plane
or bus
4.7 nF
PC
PR
–IN
Module 1
1. This converter is not a constant power device – it has a
+IN
constant current limit. Hence, available output power is
reduced by the same percentage that output voltage is
0.2 μF
0.001 μF Z1 *
PC
PR
Module 2
Figure 9 — AC coupled single-wire interface.
trimmed down. Do not exceed maximum rated output current.
2. The trim down resistor must be connected between the SC
and -S pins. Do not bypass the SC pin directly with a
capacitor.
Trim Up
1. The converter is rated for a maximum delivered power. To
–IN
4.7 nF
Parallel
Bus
* See Maxi, Mini, Micro Design Guide.
ensure that maximum rated power is not exceeded, reduce
maximum output current by the same percentage increase in
output voltage.
2. The trim up resistor must be connected between the SC
and +S pins. Do not bypass the SC pin directly with a
capacitor.
+
T1
4.7 nF
0.2 μF
Z1 *
4.7 nF
+IN
PC
PR
–IN
Module 1
asp.vicorpower.com/calculators/calculators.asp?calc=1
Module 2
Z1 *
Figure 10 — Transformer-coupled interface.
3. Do not trim the converter above maximum trim range
(typically +10%) or the output over voltage protection
circuitry may be activated.
Trim resistor values calculated automatically:
On-line calculators for trim resistor values are available on the
vicor website at:
Resistor values can be calculated for fixed trim up, fixed trim
down and for variable trim up or down.
Parallel
Bus
T2
4.7 nF
4.7 nF
+IN
0.2 μF PC
PR
–IN
48 V Mini Family
Page 8 of 11
Rev 7.8
4/2013
vicorpower.com
800 735.6200
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V48B48M250B3 功能描述:CONVERTER MOD DC/DC 48V 250W RoHS:否 类别:电源 - 板载 >> DC DC Converters 系列:迷你型 设计资源:Maxi/Mini/Micro Design Guide, Appl Manual 标准包装:1 系列:Maxi 类型:隔离 输出数:1 电压 - 输入(最小):36V 电压 - 输入(最大):75V Voltage - Output 1:15V Voltage - Output 2:- Voltage - Output 3:- 电流 - 输出(最大):* 电源(瓦) - 制造商系列:500W 电压 - 隔离:* 特点:* 安装类型:通孔 封装/外壳:模块 尺寸/尺寸:4.60" L x 2.20" W x 0.54" H(116.8mm x 55.9mm x 13.7mm) 包装:散装 工作温度:-40°C ~ 100°C 效率:* 电源(瓦特)- 最大:*
V48B48M250BF 功能描述:CONVERTER MOD DC/DC 48V 250W RoHS:是 类别:电源 - 板载 >> DC DC Converters 系列:迷你型 设计资源:Maxi/Mini/Micro Design Guide, Appl Manual 标准包装:1 系列:Maxi 类型:隔离 输出数:1 电压 - 输入(最小):36V 电压 - 输入(最大):75V Voltage - Output 1:15V Voltage - Output 2:- Voltage - Output 3:- 电流 - 输出(最大):* 电源(瓦) - 制造商系列:500W 电压 - 隔离:* 特点:* 安装类型:通孔 封装/外壳:模块 尺寸/尺寸:4.60" L x 2.20" W x 0.54" H(116.8mm x 55.9mm x 13.7mm) 包装:散装 工作温度:-40°C ~ 100°C 效率:* 电源(瓦特)- 最大:*
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