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參數(shù)資料
| 型號： | TEA2164 |
| 廠商： | 意法半導體 |
| 英文描述： | SWITCH MODE POWER SUPPLY PRIMARY CIRCUIT |
| 中文描述： | 開關電源主回路 |
| 文件頁數(shù)： | 8/15頁 |
| 文件大?。?/td> | 177K |
| 代理商： | TEA2164 |
2
Figure 5 :
BurstMode Waveforms
2
Tch
≈
1s (typ)
T1
≈
0.3s (typ)
T
start-up
= Tch + T1
T1 :necessary time for voltagesetting-up
Figure 6 :
PowerSupplyStart-up
d) Abnormal conditions : safetyfunctions
OvervoltageProtection
When V
CC
exceeds V
CC
max, an internal flip-flop
stops output conduction signals. The circuit will
start again after the capacitor C1 discharge ; it
means : after loss of synchronization or after Vcc
stopcrossing (Figure 7).
In flyback converters, this function protects the
power supply againstoutput voltagerunaway.
Under Voltage Lock-out
The TEA2164 control circuit stops operatingwhen
V
CC
goes underV
CC
stop.
Power Limitation, Current Protection, Long
Duration OverloadProtection
- Output power limitation : by a pulse by pulse
collectorcurrent limitation the TEA2164limits the
maximum output power.V
CM1
is the correspond-
ing voltagethreshold,its detectionis memorized
up to the next period.
- Currentprotection(transistorprotection)
Under particular conditions a hard overload or
short circuit mayinducea flux runawayin spiteof
the currentlimitation (V
CM1
).
The TEA2164 control circuit features a second
current protection, V
CM2
. When this thresholdis
reached an internal flip-flop memorizes it and
TEA2164
8/15
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TEA2164S | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:SWITCH MODE POWER SUPPLY PRIMARY CIRCUIT |
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| TEA220M1EBK-0512P | 功能描述:鋁質(zhì)電解電容器 - 帶引線 25V 22uF 20% RoHS:否 制造商:Kemet 引線類型: 電容:220 uF 容差:20 % 電壓額定值:25 V 工作溫度范圍: 端接類型:Radial 外殼直徑:8 mm 外殼長度:11 mm 引線間隔:5 mm 產(chǎn)品:General Purpose Electrolytic Capacitors 封裝:Bulk |
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