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參數(shù)資料
| 型號： | SC614DB |
| 廠商： | Semtech Corporation |
| 英文描述： | Low Noise Backlight and Flash Driver With Serial Interface |
| 中文描述： | 低噪聲背光和閃光串行接口驅(qū)動程序 |
| 文件頁數(shù)： | 11/25頁 |
| 文件大?。?/td> | 395K |
| 代理商： | SC614DB |
2006 Semtech Corp.
POWER MANAGEMENT
State Diagrams (Cont.)
SC614
United States Patent No. 6,504,422
www.semtech.com
11
Power Management
Sleep Mode
(Register
contents stored)
Shutdown
(EN low)
Sleep Mode
(Register
contents reset)
SLEEP = 1 from any Run Mode
SWRST = 1 from any Run Mode
EN low from any mode
SLEEP = 0
Return to
previous Mode
SLEEP = 0
Run Mode
There are three options for powering down the SC614 (other than writing 0x00 to each Current Control Register or
the LED On/Off Control Register):
Sleep Mode (SLEEP = 1)
Setting this bit to 1 at any time will power down the charge pump. The register contents will be stored, the bandgap
reference will remain active, and UVLO and serial interface monitoring will continue. Clearing this bit will resume
operation as before.
Sleep Mode from Reset (SWRES = 1)
Setting SWRES to 1 will reset all registers (clearing the SWRES bit), causing the part to enter Sleep Mode but with
all registers at their reset values (0x00 for registers 0x00 through 0x07, 0x20 for Control Register 0x08 (SLEEP =
1). Upon clearing the SLEEP bit, the SC614 will enter run mode and will require writing to the registers to commence
driving LEDs.
Shutdown (EN low)
All internal functions are powered down. Pulling EN high will enter Sleep Mode with all registers reset.
Device Operation With All LEDs Disabled
If the SC614 is driving LEDs and then all LEDs are disabled, the device reverts to 1x mode with a nominal output
voltage of 3V. This decreases the response time when the LEDs are enabled once more. Quiescent current in this
mode will be 700
μ
A (nom).
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| SC614EVB | Low Noise Backlight and Flash Driver With Serial Interface |
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相關(guān)代理商/技術(shù)參數(shù) |
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| SC614EVB | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Low Noise Backlight and Flash Driver With Serial Interface |
| SC614MLTRT | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Low Noise Backlight and Flash Driver With Serial Interface |
| SC614-R | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Speech And Music Processor |
| SC614-RL1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Speech And Music Processor |
| SC615 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Charge Pump Flash LED Driver |
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