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參數(shù)資料
| 型號： | SC621AEVB |
| 廠商： | Semtech Corporation |
| 英文描述： | Charge Pump, 4 LEDs, 400mA Flash LED, Dual LDOs, and I2C Interface |
| 中文描述： | 電荷泵，4個LED，400mA的閃光LED，雙LDO和I2C接口 |
| 文件頁數(shù)： | 6/24頁 |
| 文件大?。?/td> | 327K |
| 代理商： | SC621AEVB |
SC621A
6
Notes:
(1) ΔV
(2) Once tripped, flash output will remain disabled until FLEN pin is cycled or reset via serial interface.
(3) Current matching equals ± [I
- I
] / [I
+ I
].
(4) Test voltage is V
= 4.0V — a relatively extreme LED voltage — to force a transition during test. Typically V
= 3.2V for white LEDs.
(5) Dropout is defined as (V
IN
- V
LDO1
) when V
LDO1
drops 100mV from nominal. Dropout does not apply to LDO2 since it has a maximum output voltage
of 1.8V.
(6) Guaranteed by design
is the voltage difference between any two LEDs.
Parameter
Symbol
Conditions
Min
Typ
Max
Units
I
2
C Interface (Continued)
I/O Pin Capacitance
C
IN
10
pF
I
2
C Timing
Clock Frequency
f
SCL
400
440
kHz
SCL Low Period
(6)
t
LOW
1.3
μs
SCL High Period
(6)
t
HIGH
0.6
μs
Data Hold Time
(6)
t
HD_DAT
0
μs
Data Setup Time
(6)
t
SU_DAT
100
μs
Setup Time for Repeated
START Condition
(6)
t
SU_STA
0.6
μs
Hold Time for Repeated
START Condition
(6)
t
HD_STA
0.6
μs
Setup Time for STOP
Condition
(6)
t
SU_STO
0.6
μs
Bus-Free Time Between
STOP and START
(6)
t
BUF
1.3
μs
Interface Start-up Time
(6)
t
EN
Bus Start-up Time After EN Pin is Pulled High
1
ms
Electrical Characteristics (continued)
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PDF描述 |
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| SC621A | Charge Pump, 4 LEDs, 400mA Flash LED, Dual LDOs, and I2C Interface |
| SC621AULTRT | Charge Pump, 4 LEDs, 400mA Flash LED, Dual LDOs, and I2C Interface |
| SC621 | LED Light Management Unit Charge Pump, 4 LEDs, 400mA Flash LED, Dual LDOs, and SemWireTM Interface |
| SC621EVB | LED Light Management Unit Charge Pump, 4 LEDs, 400mA Flash LED, Dual LDOs, and SemWireTM Interface |
| SC621ULTRT | LED Light Management Unit Charge Pump, 4 LEDs, 400mA Flash LED, Dual LDOs, and SemWireTM Interface |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC621AULTRT | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Charge Pump, 4 LEDs, 400mA Flash LED, Dual LDOs, and I2C Interface |
| SC621EVB | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:LED Light Management Unit Charge Pump,4 LEDs, 400mA Flash LED Dual LDOs,and SemWire Interface |
| SC621ULTRT | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:LED Light Management Unit Charge Pump,4 LEDs, 400mA Flash LED Dual LDOs,and SemWire Interface |
| SC622 | 制造商:M.E.C. Relays 功能描述: |
| SC622_09 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:LED Light Management Unit Charge Pump, 400mA Flash LED, Dual LDOs, and SemWire Interface |
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