参数资料
型号: PKR4117ASPBI
厂商: ERICSSON POWER MODULES AB
元件分类: 电源模块
英文描述: 1-OUTPUT 15 W DC-DC REG PWR SUPPLY MODULE
封装: ROHS COMPLIANT, SMD-18
文件页数: 2/30页
文件大小: 1444K
代理商: PKR4117ASPBI
Ericsson Internal
PRODUCT SPECIFICATION
7 (17)
Prepared (also subject responsible if other)
No.
ESKEVIN
2/1301-BMR 640 1411+ Uen
Approved
Checked
Date
Rev
Reference
SEC/D (Julia You)
EZYPING
2007-8-27
F
5.0V, 3A / 15W Typical Characteristics
PKR 4211A SI
Start-up
Shut-down
Start-up enabled by connecting VI at:
Tref = +25°C, VI = 53 V,
IO = 3 A resistive load.
Top trace: output voltage (2.0 V/div.).
Bottom trace: input voltage (20 V/div.).
Time scale: (2 ms/div.).
Shut-down enabled by disconnecting VI at:
Tref = +25°C, VI = 53 V,
IO = 3 A resistive load.
Top trace: output voltage (2.0 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (2 ms/div.).
Output Ripple & Noise
Output Load Transient Response
Output voltage ripple at:
Tref = +25°C, VI = 53 V,
IO = 3 A resistive load.
Trace: output voltage (20 mV/div.).
Time scale: (2 s/div.).
Output voltage response to load current step-change
(0.75-2.25-0.75 A) at:
Tref =+25°C, VI = 53 V.
Top trace: output voltage (500 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:
Rou= 4.20 x (6.35 – Vo) / ( Vo - Voi) kΩ
Eg Increase 4% =>V
out =5.25 Vdc
4.20 x (6.35 – 5.25) / ( 5.25 – 5.05) = 23.1 k
Ω
Output Voltage Adjust Downwards, Decrease:
Rod= 18 x ( Voi – Vo) / (Vo –2.7) kΩ
Eg Decrease 2% =>V
out = 4.95 Vdc
18 x ( 5.05 – 4.95) / (4.95 –2.7)= 0.8 k
Ω
E
PKR 4000A PI
DC/DC Converters, Input 36-75 V, 3 A / 15 W
EN/LZT 146 300 R5F April 2009
Ericsson AB
Technical Specication
10
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