- 您现在的位置：买卖IC网 > PDF目录298950 > CLM1117M-X (CALOGIC LLC) GIGATRUE 550 CAT6 PATCH 20 FT, NON BOOT, PURPLE PDF资料下载
参数资料
| 型号： | CLM1117M-X |
| 厂商： | CALOGIC LLC |
| 英文描述： | GIGATRUE 550 CAT6 PATCH 20 FT, NON BOOT, PURPLE |
| 中文描述： | 800mA的低压差稳压器的SCSI - 2有源终结者 |
| 文件页数： | 3/4页 |
| 文件大小： | 47K |
| 代理商： | CLM1117M-X |
APPLICATION NOTES
EXTERNAL CAPACITOR
To ensure the stability of the CLM1117 an output capacitor of
at least 10
F (tantalum) or 50F (aluminum) is required. The
value may change based on the application requirements on
the output load or temperature range. The capacitor equivalent
series resistance (ESR) will effect the CLM1117 stability. The
value of the ESR can vary from the type of capacitor used in
the applications. The recommended value for ESR is 0.5
.
The output capacitance could increase in size to above the
minimum value. The larger value of output capacitance as
high as 100
F can improve the load transient response.
SOLDERING METHODS
The CLM1117 SOT-223 package is designed to be compatible
with infrared reflow or vapor-phase reflow soldering techniques.
During soldering the non-active or mildly active fluxes may be
used.
The CLM1117 die is attached to the heatsink lead
which exits opposite the input, output, and ground pins.
Hand soldering and wave soldering should be avoided since
these methods can cause damage to the device with
excessive thermal gradients on the package. The SOT-223
recommended soldering method are as follows: vapor phase
reflow and infrared reflow with the component preheated to
within 65
oC of the soldering temperature range.
THERMAL CHARACTERISTICS
The thermal resistance of CLM1117 is C
o/W from junction to
tab and 31 C
o/W from tab to ambient for a total of 46 Co/W
from junction to ambient. The CLM1117 features the internal
thermal limiting to protect the device during overload
conditions. Special care needs to be taken during continuous
load conditions to insure the maximum junction temperature
does not exceed 125
oC.
Taking the FR-4 printed circuit board and 1/16 thick with 1
ounce copper foil as an experiment (fig.1 & fig.2), the PCB
material is effective at transmitting heat with the tab attached
to the pad area and a ground plane layer on the backside of
the substrate.
Refer to table 1 for the results of the
experiment.
The thermal interaction from other components in the
application can effect the thermal resistance of the CLM1117.
The actual thermal resistance can be determined with
experimentation. CLM1117 power dissipation is calculated as
follows:
PD = (VIN - VOUT) (IOUT)
Maximum Junction Temperature Range:
TJ = Tambient (max) + PD (thermal resistance (Junction-to-ambient))
Maximum Junction Temperature must not exceed 125
oC.
PO = (10V - 2.85) (105mA) = (7.15) (105mA) = 750mW
CLM1117
CORPORATION
FIGURE 1. CIRCUIT LAYOUT, THERMAL EXPERIMENTS
10V
+
10
F
2.85V
27K
10
F
CLM1117 - 2.85
1N-13
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
FIGURE 2. SUBSTRATE LAYOUT FOR SOT-223
50 X 50mm
35 X 17mm
16 X 10mm
1N-14
TABLE 1.
TOTAL PC BOARD AREA
TOPSIDE COPPER AREA
BACKSIDE COPPER AREA
THERMAL RESISTANCE
JUNCTION TO AMBIENT
2500mm
1600mm
2500mm
1600mm
900mm
2500mm
1250mm
950mm
2500mm
1800mm
600mm
1250mm
915mm
600mm
240mm
2500mm
0
1600mm
0
900mm
0
46
oC/Wo
47
oC/Wo
49
oC/Wo
51
oC/Wo
53
oC/Wo
55
oC/Wo
58
oC/Wo
59
oC/Wo
67
oC/Wo
72
oC/Wo
85
oC/Wo
相关PDF资料 |
PDF描述 |
|---|---|
| CLM285Y2 | Micropower Voltage Reference Diode |
| CLM2930AM-X | DIN Audio Connector; No. of Contacts:4; Contact Termination:Solder; Mounting Type:Cable; Gender:Male RoHS Compliant: Yes |
| CLM2950CN-X | 150mA Low Dropout Voltage Regulators |
| CLM385T1 | Micropower Voltage Reference Diode |
| CLM285Y1 | Micropower Voltage Reference Diode |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CLM-112-02-F-D | 制造商:Samtec Inc 功能描述:CONN SCKT STRP SKT 24 POS 1MM SLDR ST SMD - Bulk 制造商:Samtec Inc 功能描述:SOCKET, 1MM, VERTICAL SMT, 24WAY 制造商:Samtec Inc 功能描述:SOCKET, 1MM, VERTICAL THT, 24POS; Series:-; Pitch Spacing:1mm; No. of Rows:2; No. of Contacts:24; Gender:Receptacle; Contact Termination:Through Hole Vertical; Contact Plating:Gold; Contact Material:Phosphor Bronze ;RoHS Compliant: Yes |
| CLM-112-02-F-D-A | 制造商:Samtec Inc 功能描述:Conn Socket Strip SKT 24 POS 1mm Solder ST SMD Tube 制造商:Samtec Inc 功能描述:CONN SCKT STRP SKT 24 POS 1MM SLDR ST SMD - Bulk |
| CLM-112-02-F-D-A-K | 制造商:Samtec Inc 功能描述:1MM MICRO STRIPS - Bulk |
| CLM-112-02-F-D-A-K-TR | 制造商:Samtec Inc 功能描述:1MM MICRO STRIPS - Tape and Reel |
| CLM-112-02-F-D-A-P | 制造商:Samtec Inc 功能描述:CONN SCKT STRP SKT 24 POS 1MM SLDR ST SMD - Bulk |
发布紧急采购，3分钟左右您将得到回复。