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參數(shù)資料
| 型號： | FSR510R09GZ |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, ZFM6 |
| 封裝： | ROHS COMPLIANT, TO-220, 6 PIN |
| 文件頁數(shù)： | 12/12頁 |
| 文件大?。?/td> | 0K |
| 代理商： | FSR510R09GZ |
2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FSR510 Rev. 1.0.4
9
FSR510
—
Highly
Integrated
Synchronous
Rectificati
on
Combination
Controller
power supplies to meet the most stringent power
conservation requirements. When the discharge time of
the internal capacitor is longer than tGREEN-OFF (around
5.8s) for more than nine cycles, the SR circuit is
enabled and resumes the normal operation, as shown
in Figure 10.
Figure 9.
Entering Green Mode
Figure 10.
Resuming Normal Operation
Under-Voltage Lockout (UVLO)
The power ON and OFF VDD threshold voltages of the
FSR510 are fixed at 4.8V and 4.5V, respectively. With
an ultra-low VDD operating range, the FSR510 can be
applied to various output voltage applications.
VDD Pin Over-Voltage Protection
Over-voltage conditions are usually caused by open
feedback loop. VDD over-voltage protection has been
built-in to prevent damage on SR MOSFET. When the
voltage on VDD pin exceeds 25.5V, the SR controller
stops switching the SR MOSFET.
Output Short Protection
When the output of power supply is shorted, the input
power is limited by pulse-by-pulse current limit and the
output drops to almost zero. FSR510 has output short
protection which is triggered when RES pin voltage is
below 0.5V longer than 50
μs. When output short
protection triggers, it stops switching operation.
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