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參數(shù)資料
| 型號： | PKB4711PINBM |
| 廠商： | ERICSSON POWER MODULES AB |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 75 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT, EIGHTH BRICK PACKAGE-8 |
| 文件頁數(shù)： | 18/46頁 |
| 文件大小： | 1643K |
| 代理商： | PKB4711PINBM |
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Ericsson Internal
PRODUCT SPECIFICATION
4 (5)
Prepared (also subject responsible if other)
No.
EZYPING
2/1301-BMR 636 04/14 Uen
Approved
Checked
Date
Rev
Reference
SEC/D (Betty Wu)
ESECZHW
2009-2-9
B
3.3 V/25 A Typical Characteristics
PKB 4810 PINB
Start-up
Shut-down
Start-up enabled by connecting V
I at:
T
P1 = +25°C, VI = 53 V,
I
O = 25 A resistive load.
Top trace: output voltage (2 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (10 ms/div.).
Shut-down enabled by disconnecting V
I at:
T
P1 = +25°C, VI = 53 V,
I
O = 25 A resistive load.
Top trace: output voltage (2 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (0.1 ms/div.).
Output Ripple & Noise
Output Load Transient Response
Output voltage ripple at:
T
P1 = +25°C, VI = 53 V,
I
O = 25 A resistive load.
Trace: output voltage (20 mV/div.).
Time scale: (2 μs/div.).
Output voltage response to load current step-
change (6.25-18.75-6.25 A) at:
T
P1 =+25°C, VI = 53 V.
Top trace: output voltage (200 mV/div.).
Bottom trace: load current (10 A/div.).
Time scale: (0.1 ms/div.).
Output Voltage Adjust (see operating information)
Passive adjust
The resistor value for an adjusted output voltage is calculated by
using the following equations:
Output Voltage Adjust Upwards, Increase:
()
Δ
Δ
×
Δ
+
×
=
22
.
10
%
511
%
225
.
1
%
100
30
.
3
11
.
5
Radj
kΩ
Example: Increase 4% =>V
out = 3.432 Vdc
()
×
+
×
22
.
10
4
511
4
225
.
1
4
100
30
.
3
11
.
5
kΩ = 220 kΩ
Output Voltage Adjust Downwards, Decrease:
100
5.11
2 k
%
Radj
=×
Ω
Δ
Example: Decrease 4% =>V
out = 3.168Vdc
100
5.11
2 k
117.5k
4
×
Ω =
Ω
Active adjust
The output voltage may be adjusted using a current/voltage
applied to the Vadj pin. This current/voltage is calculated by
using the following equations:
×
+
=
30
.
3
30
.
3
45
.
2
225
.
1
Vdesired
Vadj
V
Example: Upwards => 3.40 V
×
+
30
.
3
30
.
3
40
.
3
45
.
2
225
.
1
V = 1.2992 V
Example: Downwards => 3.20 V
×
+
30
.
3
30
.
3
20
.
3
45
.
2
225
.
1
V = 1.1508V
E
PKB 4000 series
DC/DC converters, Input 36-75 V, Output 30 A/90 W
EN/LZT 146 394 R5A August 2009
Ericsson AB
Technical Specication
25
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