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SC622AEVB датащи(PDF) 18 Page - Semtech Corporation

номер детали SC622AEVB
подробное описание детали  LED Light Management Unit Charge Pump, 400mA Flash LED,Dual LDOs,and I2C Interface
PDF  23 Pages
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производитель  SEMTECH [Semtech Corporation]
домашняя страница  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC622AEVB датащи(HTML) 18 Page - Semtech Corporation

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SC622A
18
Register Map
Address
D7
D6
D5
D4
D3
D2
D1
D0
Reset
Value
Description
0x02
0(1)
0(1)
0(1)
FLTO
FL_2
FL_1
FL_0
FL/SPLB
0x10
Flash/Spotlight
Control
0x03
0(1)
LDO2_2
LDO2_1
LDO2_0
LDO1_3
LDO1_2
LDO1_1
LDO1_0
0x00
LDO Control
Notes:
(1)
0 = always write a 0 to these bits
Register and Bit Definitions
Flash/Spotlight Control Register (0x02)
This register is used to configure the flash time-out
feature, the flash or spotlight current, and select flash or
spotlight current ranges.
FLTO
This bit is used to enable the flash safety time-out feature.
The default state is enabled with FLTO = 1. If this bit is set,
the device will turn off the flash after a nominal period of
1s. Two ways to re-enable the flash function after a safety
time-out are:
Pull the FLEN pin low to re-enable the flash
function
Clear and re-write FL[2:0]
FL[2:0]
These bits are used to set the current for the flash current
sink when configured for flash or spotlight by the FL/
SPLB bit. Bits FL[2:0] set the flash or spotlight current, as
shown in Table 1.
•
•
Table 1 — Flash/Spotlight Control Bits
FL_2
FL_1
FL_0
FL/
SPLB
Flash/Spotlight
Current (mA)
0
0
0
0
OFF
00
1
0
50
0
1
0
0
100
0
1
1
0
150
1
0
0
0
200
1
0
1
0
250
1
1
0
0
250
1
1
1
0
250
0
0
0
1
OFF
0
0
1
1
300(1)
0
1
0
1
350(1)
0
1
1
1
400(1)
1
0
0
1
400(1)
1
0
1
1
400(1)
1
1
0
1
400(1)
1
1
1
1
400(1)
Note:
(1)
When on continuously, the device may reach the temperature
limit with 300mA and higher.



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