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參數(shù)資料
| 型號： | 7700 |
| 廠商： | BI TECHNOLOGIES CORP |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT AC-DC PWR FACTOR CORR MODULE |
| 封裝： | POWER, MODULE-14 |
| 文件頁數(shù)： | 5/5頁 |
| 文件大小： | 111K |
| 代理商： | 7700 |
7
Model 7700
The 100KHz output voltage ripple will be:
The maximum rms 100KHz ripple current will be:
GATE DRIVE REQUIREMENTS
FET switching times must be fast enough to insure that
the FET turns off when the PWM is at maximum duty
cycle. Snubbing circuits across the FET will slow the
turn off time and should not be used.
A discrete gate driver circuit will allow the fastest
possible switching times. The Unitrode UC3710 or
Teledyne TC4422 drivers offer a single chip approach
with only slightly slower switching times. The gate
driver must be located as close to the module as
possible. Ground sense pin 10 should be used to insure
the fastest possible switching times.
HEAT RADIATOR
The heat radiator requirements can be determined
by the maximum power dissipated (at low line) and
the maximum ambient temperature. The back side
of the module will be limited to about 85°C by the
thermal switch.
Care should be used when attaching the module
to the heat radiator. The screws must be tightened
incrementally in a crisscross pattern. A torque
limiting screwdriver should be used.
APPLICATION NOTES (MODEL 7700)
R =
O LOWLINE
85 - T
MAX AMB
P
Θ
V x (1-
)
IN
2.828 x L x f
1.414 x VIN
VO
I
=
RMS 100K
(1.414 x V )
L x f
O P– P 100K
V
=
x
+ ESR
1
2x
πxfxC
O
(
)
V x (1-
)
IN
VO
The high current levels require currrent sense
transformers to maintain a reasonable efciency.
We recommend BI Technologies HM31-20200.
PFC PWM VENDORS
Popular sources are:
Unitrode UC3854
Micro Linear ML4812
Linear Technology LT1248
THERMAL SWITCH
This module uses a programmable solid state
temperature sensing IC with an open collector output.
Astec Semiconductor’s AS273 can be congured to
shut down the supply when the temperature threshold
is reached. The programming resistor and a .1F
ceramic capacitor should be located as close to the
module as possible to eliminate any EMI problems.
The AS273 can also be congured as a dual speed fan
control, and as a three state temperature
warning sensor. For more information contact
Astec Semiconductor, 255 Sinclair Frontage
Road, Milpitas CA 95035, Tel (408) 263-8300,
Fax (408) 263-8340.
7-23
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| 7700 BK199 | 制造商:Belden Inc 功能描述:7700 BLACK BULK FT |
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| 7700/10 100' | 功能描述:CBL RIBN 10COND .025 SILVER 100' 制造商:3m 系列:7700 零件狀態(tài):在售 電纜類型:扁平纜線 導體數(shù):10 間距:0.025"（0.64mm） 長度:100.0'（30.48m） 線規(guī):30 AWG 導線股數(shù):實心 屏蔽:無屏蔽 套管顏色:銀色 帶厚度:0.030"（0.76mm） 帶寬度:0.300"（7.62mm） 護套（絕緣）材料:聚烯烴（PO） 電壓:30V 工作溫度:-20°C ~ 80°C 等級:- 特性:- 導體材料:銅，鍍錫 絕緣電阻:1 G歐姆 第一導體標志:- 標準包裝:10 |
| 7700/10 100'SF | 功能描述:CBL RIBN 10COND .025 SILVER 100' 制造商:3m 系列:7700 零件狀態(tài):在售 電纜類型:扁平纜線 導體數(shù):10 間距:0.025"（0.64mm） 長度:100.0'（30.48m） 線規(guī):30 AWG 導線股數(shù):實心 屏蔽:無屏蔽 套管顏色:銀色 帶厚度:0.030"（0.76mm） 帶寬度:0.300"（7.62mm） 護套（絕緣）材料:聚烯烴（PO） 電壓:30V 工作溫度:-20°C ~ 80°C 等級:- 特性:- 導體材料:銅，鍍錫 絕緣電阻:1 G歐姆 第一導體標志:- 標準包裝:10 |
| 7700/100 100' | 功能描述:CBL RIBN 100COND .025 SLVR 100' 制造商:3m 系列:7700 零件狀態(tài):在售 電纜類型:扁平纜線 導體數(shù):100 間距:0.025"（0.64mm） 長度:100.0'（30.48m） 線規(guī):30 AWG 導線股數(shù):實心 屏蔽:無屏蔽 套管顏色:銀色 帶厚度:0.030"（0.76mm） 帶寬度:2.550"（64.77mm） 護套（絕緣）材料:聚烯烴（PO） 電壓:30V 工作溫度:-20°C ~ 80°C 等級:- 特性:- 導體材料:銅，鍍錫 絕緣電阻:1 G歐姆 第一導體標志:- 標準包裝:6 |
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