参数资料
型号: PKU4513PIPLA
厂商: ERICSSON POWER MODULES AB
元件分类: 电源模块
英文描述: 1-OUTPUT 50 W DC-DC REG PWR SUPPLY MODULE
封装: ROHS COMPLIANT PACKAGE-8
文件页数: 26/38页
文件大小: 1050K
代理商: PKU4513PIPLA
Ericsson Internal
PRODUCT SPECIFICATION
4 (6)
Prepared (also subject responsible if other)
No.
MPM/BK Gran Persson
3/1301-BMR 602 Uen
Approved
Checked
Date
Rev
Reference
MPM/BK (Natalie Johansson)
(MICRF)
2007-05-10
E
Thermal Consideration
General
The converters are designed to operate in different thermal
environments and sufficient cooling must be provided to
ensure reliable operation.
Cooling is achieved mainly by conduction, from the pins to
the host board, and convection, which is dependent on the
airflow across the converter. Increased airflow enhances the
cooling of the converter.
The Output Current Derating graph found in the Output
section for each model provides the available output current
vs. ambient air temperature and air velocity at Vin = 53 V.
The DC/DC converter is tested on a 254 x 254 mm,
35 μm (1 oz), 8-layer test board mounted vertically in a wind
tunnel with a cross-section of 305 x 305 mm.
Proper cooling of the DC/DC converter can be verified by
measuring the temperature at positions P1. The temperature
at these positions should not exceed the max values provided
in the table below.
See Design Note 019 for further information.
Position
Device
Designation
Max value
P1
Mosfet
Tref
110C
P1
Definition of reference temperature (Tref)
The reference temperature is used to monitor the temperature
limits of the product. Temperatures above maximum Tref are
not allowed and may cause degradation or permanent
damage to the product. Tref is also used to define the
temperature range for normal operating conditions.
Tref is defined by the design and used to guarantee safety
margins, proper operation and high reliability of the module.
Ambient Temperature Calculation
By using the thermal resistance the maximum allowed
ambient temperature can be calculated.
1. The power loss is calculated by using the formula
((1/η) - 1) × output power = power losses (Pd).
η = efficiency of converter. For example 89.2 % = 0.892
2. Find the thermal resistance (R
th) in the Thermal Resistance
graph found in the Output section for each model.
Calculate the temperature increase (ΔT).
ΔT = Rt
h x Pd
3. Max allowed ambient temperature is:
Max T
ref - ΔT.
Example PKU 4510 (@ V
I 53 V &15 A) at 1 m/s:
1. ((
) -
1) × 49.5 W = 5.99 W
2. 5.99 W × 9.2°C/W = 55.1°C
3. 110 °C — 55.1°C = max ambient temperature is 54.9°C
The actual temperature will be dependent on several factors
such as the PCB size, number of layers and direction of
airflow.
1
0.892
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
Ericsson Power Modules AB
Technical Specication
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
Ericsson Power Modules AB
Technical Specication
32
相关PDF资料
PDF描述
PKU4515SIPLA 1-OUTPUT 49.5 W DC-DC REG PWR SUPPLY MODULE
PKU4513SIP 1-OUTPUT 50 W DC-DC REG PWR SUPPLY MODULE
PKU4511SILA 1-OUTPUT 50 W DC-DC REG PWR SUPPLY MODULE
PKU4513SIPLA 1-OUTPUT 50 W DC-DC REG PWR SUPPLY MODULE
PKU4515PIPLA 1-OUTPUT 49.5 W DC-DC REG PWR SUPPLY MODULE
相关代理商/技术参数
参数描述
PKU4513SI 制造商:Ericsson 功能描述:CONVERTER/PKU4513 SI 36-75VIN/12VOUT,4.2 - Trays
PKU4515 PI 制造商:Ericsson 功能描述:
PKU4515 SI/C 制造商:Ericsson 功能描述:
PKU4515PI 功能描述:DC/DC转换器 15Vdc 3.3A Isolated Input 36-75V 50W RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压(标称): 输出端数量:1 输出电压(通道 1):3.3 V 输出电流(通道 1):600 mA 输出电压(通道 2): 输出电流(通道 2): 安装风格:SMD/SMT 封装 / 箱体尺寸:
PKU4515SI 功能描述:DC/DC转换器 50W 15V 3.3A 36-75Vin SMT RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压(标称): 输出端数量:1 输出电压(通道 1):3.3 V 输出电流(通道 1):600 mA 输出电压(通道 2): 输出电流(通道 2): 安装风格:SMD/SMT 封装 / 箱体尺寸: