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AS3685A Datasheet(PDF) 21 Page - ams AG

Part # AS3685A
Description  Ultra Small High Efficiency 1000mA Charge Pump for White LED Flash
PDF  39 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS3685A Datasheet(HTML) 21 Page - ams AG

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ams Datasheet
Page 21
[v2-23] 2016-Mar-30
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AS3685A/AS3685B − Detailed Description
Figure 31:
AS3685B Current Settings
Note(s):
1. The on-time for indicator mode is 1
μs, off time 31μs (32μs = 32.25kHz).
Where IISET is:
H-L-H Pulses
on EN1
Mode
ILED
(for RISET =14.2kΩ)
ILED
(for RISET = 10kΩ)
ILED/IISET
EN1=EN2=0
Off
0mA
0%
0 (Off )
0
Indicator
4.7mA average
(=150mA with 1/32 duty
cycle(1) )
6.7mA
(=214mA with 1/32
duty cycle(1) )
52.2
(=ITORCH2ISET/32)
1
2
Torch
41mA
60mA
448
3
85mA
120mA
929
4
129mA
180mA
1410
5
173mA
250mA
1891
6
Flash
217mA
310mA
2371
7
Flash
261mA
370mA
2852
8
305mA
440mA
3333
9
349mA
500mA
3814
10
393mA
560mA
4295
11
437mA
620mA
4776
12
481mA
690mA
5257
13
525mA
750mA
5737
14
569mA
810mA
6218
15
613mA
880mA
6699
16
657mA
940mA
7180
17
700mA
1000mA
7650 (=IFLASH2ISET)
(EQ2)
IISET
VISET
RISET
---------------
1.3V
RISET
---------------
==



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