参数资料
| 型号： | P048T048T24AL |
| 厂商： | Vicor Corporation |
| 文件页数： | 9/14页 |
| 文件大小： | 0K |
| 描述： | V.I CHIP PRM REGULATOR 48V 240W |
| 应用说明： | Factorized Power Architecture and V-I Chips |
| 标准包装： | 1 |
| 系列： | V-I Chip™, PRM™ |
| 类型： | 预稳模块 |
| 输出数： | 1 |
| 电压 - 输入（最小）： | 36V |
| 电压 - 输入（最大）： | 75V |
| 输出电压： | 48V |
| 电流 - 输出（最大）： | 5A |
| 电源（瓦） - 制造商系列： | 240W |
| 应用： | 商用 |
| 特点： | 具有远程开/关功能和 UVLO |
| 安装类型： | 通孔 |
| 封装/外壳： | 模块 |
| 尺寸/尺寸： | 1.28" L x 0.87" W x 0.26" H（32.5mm x 22.0mm x 6.7mm） |
| 包装： | 托盘 |
| 工作温度： | -40°C ~ 125°C |
| 效率： | 96% |
| 电源（瓦特）- 最大： | 240W |
| 重量： | 0.033 磅（14.97g） |
| 其它名称： | 1102-1155 P048T048T24AL-ND |
Not Recommended for New Designs
Application Information
Regulator
Current Multiplier
V?I Chip Regulator
V F =
0.01 μ F
10 k Ω
VC
PC
TM
IL
NC
PR
PRM?-AL
+In +Out
VH
SC
SG
OS
NC
CD
R OS
R CD
V L
K
0.4 μH
+
(I L ? Ro)
K
+In
TM
VC
PC
+Out
+Out
VTM?
– Out
L
O
A
V IN
–In
–Out
10 Ω
– In
K
Ro
– Out
D
Figure 16 — Adaptive Loop compensation with output voltage trimming and soft start using the SC port.
Output Voltage Setting with Adaptive Loop
The equations for calculating R OS and R CD to set a VTM output
voltage are:
Output Voltage Trimming (optional)
After setting the output voltage from the procedure above the output
may be margined down (26 Vf min) by a resistor from SC-SG using this
formula:
R OS =
93100
( V L ? 0.8395 ) – 1
K
(1)
R d Ω =
10000 V fd
V fs - V fd
Where V fd is the desired factorized bus and V fs is the set factorized bus.
R CD =
91238
+1
(2)
A low voltage source can be applied to the SC port to margin the load
R OS
V L = Desired load voltage
V OUT = VTM output voltage
K = VTM transformation ratio
(available from appropriate VTM data sheet)
voltage in proportion to the SC reference voltage.
An external capacitor can be added to the SC port as shown in Figure 16
to control the output voltage slew rate for soft start.
V f = PRM output voltage, the Factorized Bus (see Figure 16)
R O = VTM output resistance
(available from appropriate VTM data sheet)
I L = Load Current
(actual current delivered to the load)
Nominal Vout
Range (Vdc)
0.8 ? 1.6
1.1 ? 2.2
1.6 ? 3.3
2.2 ? 4.4
3.3 ? 6.6
4.3 ? 8.8
6.5 ? 13.4
8.7 ? 17.9
13.0 ? 26.9
17.4 ? 36.0
26.0 ? 54.0
VTM
K Factor
1/32
1/24
1/16
1/12
1/8
1/6
1/4
1/3
1/2
2/3
1
Table 2 — 048 input series VTM K factor selection guide
vicorpower.com
800-735-6200
V?I Chip Regulator
P048F048T24AL
Rev. 3.9
Page 9 of 14
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