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參數(shù)資料
| 型號(hào)： | PKB4418PINB |
| 廠商： | ERICSSON POWER MODULES AB |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 45 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT, EIGHTH BRICK PACKAGE-8 |
| 文件頁數(shù)： | 25/46頁 |
| 文件大小： | 1643K |
| 代理商： | PKB4418PINB |
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Ericsson Internal
PRODUCT SPECIFICATION
4 (5)
Prepared (also subject responsible if other)
No.
ECHWANG
2/1301-BMR 636 01/54 Uen
Approved
Checked
Date
Rev
Reference
SEC/D (Betty Wu)
ESECZHW
2009-2-9
B
12 V/6 A Typical Characteristics
PKB 4713 PINB
Start-up
Shut-down
Start-up enabled by connecting V
I at:
Tref = +25°C, VI = 53 V,
IO = 6 A resistive load.
Top trace: output voltage (5 V/div.).
Bottom trace: input voltage (20 V/div.).
Time scale: (10 ms/div.).
Shut-down enabled by disconnecting V
I at:
Tref = +25°C, VI = 53 V,
IO = 6 A resistive load.
Top trace: output voltage (5 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (0.5 ms/div.).
Output Ripple & Noise
Output Load Transient Response
Output voltage ripple at:
Tref = +25°C, VI = 53 V,
IO = 6 A resistive load.
Trace: output voltage (20 mV/div.).
Time scale: (2 s/div.).
Output voltage response to load current step-
change (1.5-4.5-1.5 A) at:
Tref =+25°C, VI = 53 V.
Top trace: output voltage (200 mV/div.).
Bottom trace: load current (2 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:
()
+
×
+
=
%
%)
2
100
(
%
225
.
1
%
100
12
11
.
5
Radj
k
Example: Increase 2% =>Vout = 12.24 Vdc
()
+
×
+
=
2
)
2
*
2
100
(
2
225
.
1
2
100
12
11
.
5
Radj
k = 2287.2 k
Output Voltage Adjust Downwards, Decrease:
100
5.11
2 k
%
Radj
=×
Example: Decrease 4% =>Vout = 11.52Vdc
100
5.11
2 k
117.5k
4
×
=
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:
×
+
=
12
45
.
2
225
.
1
Vdesired
Vadj
V
Example: Upwards => 12.50 V
×
+
12
50
.
12
45
.
2
225
.
1
V = 1.327 V
Example: Downwards => 12.50 V
×
+
12
50
.
11
45
.
2
225
.
1
V = 1.123 V
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
31
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