参数资料
型号: UARAM2CF3
厂商: ASC CAPACITORS
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, DMA7
封装: ROHS COMPLIANT, QUARTER BRICK PACKAGE-7
文件页数: 7/10页
文件大小: 880K
代理商: UARAM2CF3
Vicor Corp.
Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
MicroRAM Data Sheet
Rev. 1.4
Page 6 of 10
Set your site on VICOR at www.vicorpower.com
17 k
18 k
19 k
20 k
21 k
22 k
23 k
24 k
25 k
26 k
27 k
Rhr=28 k
-70
-60
-50
-40
-30
-20
-10
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Watts
500 khz 3 V
1 Mhz 3 V
100 khz 3 V
dB
Rhr = 260 k
250 k
240 k
230 k
220 k
210 k
200 k
190 k
180 k
170 k
160 k
150 k
-70
-60
-50
-40
-30
-20
-10
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Watts
dB
100 khz 28 V
500 khz 28 V
1 Mhz 28 V
Frequency
10 Hz
100 Hz
1.0 KHz
10 KHz
100 KHz
1.0 MHz
...
DB(V(VOUT))
-75
-50
-25
-0
Rhr = 260 k (Vheadroom = 90 mV)
250 k (100 mV)
240 k (110 mV)
230 k (122 mV)
220 k (135 mV)
210 k (150 mV)
200 k (160 mV)
190 k (180 mV)
180 k (197 mV)
170 k (217 mV)
160 k (240 mV)
150 k (260 mV)
Vout = 28 V
load = 20 A
100 degrees baseplate temperature
Figure 4a
— 4b — Simulated graphs demonstrating the tradeoff of attenuation versus headroom setting at 20 Amps and an
equivalent 100°C baseplate temperature at 3 V and 28 V.
Frequency
10 Hz
100 Hz
1.0 KHz
10 KHz
100 KHz
1.0 MHz
...
DB(V(VOUT))
-75
-50
-25
-0
Vout = 3 V load = 20 A
100 degrees baseplate temperature
Rhr = 28 k (Vheadroom = 90 mV)
27 k (100 mV)
22 k (160 mV)
23 k (150 mV)
24 k (135 mV)
25 k (122 mV)
26 k (110 mV)
17 k (260 mV)
18 k (240 mV)
19 k (217 mV)
20 k (197 mV)
21 k (180 mV)
Figure 4a
μRAM2xxx
Figure 4c
– 4d — MicroRam attenuation vs. power
dissipation at 3 V 20 A, and 28 V 20 A.
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