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参数资料
| 型号： | PKR4919BSI |
| 厂商： | ERICSSON POWER MODULES AB |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 11 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT, SMD-18 |
| 文件页数： | 25/27页 |
| 文件大小： | 743K |
| 代理商： | PKR4919BSI |
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Ericsson Internal
PRODUCT SPECIFICATION
4 (14)
Prepared (also subject responsible if other)
No.
ESKEVIN
2/1301-BMR 640 1421+ Uen
Approved
Checked
Date
Rev
Reference
SEC/D (Julia You)
EZYPING
2007-8-24
F
1.8V, 5A / 9W Typical Characteristics
PKR 4918B SI
Start-up
Shut-down
Start-up enabled by connecting V
I at:
Tref = +25°C, VI = 53 V,
IO = 5 A resistive load.
Top trace: output voltage (0.5 V/div.).
Bottom trace: input voltage (20 V/div.).
Time scale: (2 ms/div.).
Shut-down enabled by disconnecting V
I at:
Tref = +25°C, VI = 53 V,
IO = 5 A resistive load.
Top trace: output voltage (1.0 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (1 ms/div.).
Output Ripple & Noise
Output Load Transient Response
Output voltage ripple at:
Tref = +25°C, VI = 53 V,
IO = 5 A resistive load.
Trace: output voltage (20 mV/div.).
Time scale: (2 μs/div.).
Output voltage response to load current step-
change (1.25-3.75-1.25 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:
To adjust the output voltage upwards, a resistor is connected
between pins 8 and 17. The output voltage increases when
the resistance decreases. The resistance value is given by the
equation:
Rou= 4.14 × (1.28Voi— Vod)/(Vod — Voi),(kOhm); Vod is the
desired output voltage and Voi is the initial output voltage.
Active adjust
To adjust the output voltage downwards, a current source is
connected to pin 18. The output voltage decreases when the
connected current into pin 8 increases. The current value is
given by the equation:
I
adj=943 × (1-(Vod/Voi))[uA]; Voi is the initial output voltage when
pin 8 is disconnected, V
od is the desired voltage.
E
PKR 4000B series
DC/DC converters, Input 36-75 V, Output up to 5 A/15 W
EN/LZT 146 301 R6D September 2007
Ericsson Power Modules AB
Technical Specication
7
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PKR4919BSIA | 制造商:Ericsson 功能描述: |
| PKR4919BSIB | 制造商:Ericsson 功能描述: |
| PKR4919BSIC | 制造商:Ericsson 功能描述: |
| PKR4928APIA | 制造商:Ericsson 功能描述: |
| PKR4928APIC | 制造商:Ericsson 功能描述: |
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