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| 型号： | LTM4602EV#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 14/24页 |
| 文件大小： | 0K |
| 描述： | IC DC/DC UMODULE 6A 104-LGA |
| 产品培训模块： | Power Module vs. Discrete DC to DC |
| 软件下载： | LTM4602 Spice Models |
| 产品目录绘图： | LTM Series_15x15x2.8 |
| 设计资源： | LTM4602EV#PBF Footprint.bxl |
| 特色产品： | μModule Products |
| 标准包装： | 119 |
| 系列： | µModule® |
| 类型： | 非隔离（POL） |
| 输出数： | 1 |
| 电压 - 输入（最小）： | 4.5V |
| 电压 - 输入（最大）： | 20V |
| Voltage - Output 1： | 0.6 ~ 5 V |
| 电流 - 输出（最大）： | 6A |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 104-LGA |
| 尺寸/尺寸： | 0.59" L x 0.59" W x 0.11" H（15.0mm x 15.0mm x 2.8mm） |
| 包装： | 托盘 |
| 工作温度： | -40°C ~ 85°C |
| 效率： | 92% |
| 产品目录页面： | 2711 (CN2011-ZH PDF) |
LTM4602
APPLICATIONS INFORMATION
tion loss is minimized and light load ef?ciency is improved.
The penalty is that the controller may skip cycle and the
output voltage ripple increases at light load.
Paralleling Operation with Load Sharing
Two or more LTM4602 modules can be paralleled to provide
higher than 6A output current. Figure 7 shows the neces-
sary interconnection between two paralleled modules. The
OPTI-LOOP ? current mode control ensures good current
sharing among modules to balance the thermal stress.
The new feedback equation for two or more LTM4602s
in parallel is:
sinking methods. Thermal models are derived from
several temperature measurements at the bench,
and thermal modeling analysis. Application Note 103
provides a detailed explanation of the analysis for the
thermal models, and the derating curves. Tables 3
and 4 provide a summary of the equivalent θ JA for the
noted conditions. These equivalent θ JA parameters are
correlated to the measured values, and improve with
air-?ow. The case temperature is maintained at 100°C
or below for the derating curves. This allows for 4W
maximum power dissipation in the total module with
top and bottom heat sinking, and 2W power dissipation
+ R SET
V OUT =0.6V?
100k
N
R SET
through the top of the module with an approximate
θ JC between 6°C/W to 9°C/W. This equates to a total
of 124°C at the junction of the device. The θ JA values
in Tables 3 and 4 can be used to derive the derating
where N is the number of LTM4602s in parallel.
Thermal Considerations and Output Current Derating
The power loss curves in Figures 8 and 13 can be used
in coordination with the load current derating curves
in Figures 9 to 12, and Figures 14 to 15 for calculating
an approximate θ JA for the module with various heat
curves for other output voltages.
Safety Considerations
The LTM4602 modules do not provide isolation from V IN to
V OUT . There is no internal fuse. If required, a slow blow fuse
with a rating twice the maximum input current should be
provided to protect each unit from catastrophic failure.
OPTI-LOOP is a registered trademark of Linear Technology Corporation.
V PULLUP
100k
PGOOD
V IN
V IN
LTM4602
V OUT
V OUT
12A MAX
PGND COMP V OSET SGND
R SET
PGOOD COMP V OSET SGND
V IN
PGND
LTM4602
V OUT
4602 F07
Figure 7. Parallel Two μModules with Load Sharing
4602fa
14
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTM4602HV | 制造商:LINER 制造商全称:Linear Technology 功能描述:6A, 28VIN High Effi ciency DC/DC μModule |
| LTM4602HVEV#PBF | 功能描述:IC DC/DC UMODULE 6A 104-LGA RoHS:是 类别:电源 - 板载 >> DC DC Converters 系列:µModule® 设计资源:VI-200, VI-J00 Design Guide, Appl Manual 标准包装:1 系列:* 类型:隔离 输出数:1 电压 - 输入（最小）:66V 电压 - 输入（最大）:160V Voltage - Output 1:12V Voltage - Output 2:- Voltage - Output 3:- 电流 - 输出（最大）:* 电源（瓦） - 制造商系列:50W 电压 - 隔离:* 特点:* 安装类型:通孔 封装/外壳:9-FinMod 尺寸/尺寸:4.60" L x 1.86" W x 0.79" H（116.8mm x 47.2mm x 20.1mm） 包装:散装 工作温度:-25°C ~ 85°C 效率:* 电源（瓦特）- 最大:* |
| LTM4602HVEV#PBF | 制造商:Linear Technology 功能描述:DC/DC Converter IC 制造商:Linear Technology 功能描述:IC, STEP-DOWN DC/DC MODULE, LGA-104 |
| LTM4602HVEVPBF | 制造商:Linear Technology 功能描述:6A DC/DC uModule LTM4602 |
| LTM4602HVEV-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:6A, 28VIN High Effi ciency DC/DC μModule |
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