參數(shù)資料
型號: L6590N
廠商: 意法半導(dǎo)體
英文描述: FULLY INTEGRATED POWER SUPPLY FIPS
中文描述: 完全集成的電源符合FIPS
文件頁數(shù): 14/19頁
文件大?。?/td> 236K
代理商: L6590N
L6590A
14/19
Figure 28. Standby Function timing diagram
Brownout Protection
Brownout Protection is basically a not-latched device shutdown functionality. It will typically be used to detect a
mains undervoltage (brownout). This condition may cause overheating of the primary power section due to an
excess of RMS current.
Figure 29. Brownout Function internal schematic and timing diagram
Pout
Peak
Primary
Current
2 ms
1 ms
STANDBY
(filtered)
190 mA
80 mA
f
sw
65 kHz
22 kHz
STANDBY
(before filter)
Vout
Load
regulation
small glitch
HV Input bus
VinOK
Vcc
V
ON
V
OFF
PWM
Vout
+
-
L6590A
2.5 V
VinOK
50 μA
HV Input bus
6.4 V
BOK
Vcc
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