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AS3695A Datasheet(PDF) 6 Page - ams AG

Part # AS3695A
Description  16 channel white LED driver for LCD backlight
PDF  34 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS3695A Datasheet(HTML) 6 Page - ams AG

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AS3695A
austriamicrosystems
www.austriamicrosystems.com
Rev 1.10 / 2010-12-8
5 - 33
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Vopen
Open LED detection
Voltage at Pin Sx
Programmable,
Tolerance ±10%
50
100
200
VDAC
/2
mV
mV
mV
V
Tovtemp
Over temperature limit
130
140
150
°C
Thyst
Over termperature
hysteresis
10
°C
3.2.5 PWM-generators
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fOSC
Internal Clock for PWM
400
500
600
kHz
fHSYNC
HSYNC frequency
100
2000
kHz
fVSYNC
VSYNC frequency
60
480
Hz
3.2.6 Digital pins
Symbol
Parameter
Min
Typ
Max
Unit
Note
VIH
High Level Input voltage
1.3
VDD
V
VIL
Low Level Input voltage
-0.3
0.8
V
VoH
High Level output voltage
VDD-
0.3
V
I=mA
VoL
Low Level output voltage
VDD-
0.3
V
I=mA
VoL_PD
Low level output voltage open
drain outputs
VDD-
0.3
V
I=mA
R_pu
Input resistance PullUp inputs
300
k
R_pd
Input resistance PullDown inputs
300
k
3.2.7 SPI-timings
Symbol
Parameter
Min
Typ
Max
Unit
Note
fsclk
SCLK frequency
0
10
MHz
t1
xCS setup time
50
ns
t2
xCS hold time
100
ns
t3
xCS disable time
100
ns
t4
SDI setup time
5
ns
t5
SDI hold time
5
ns
t6
SCLK rise time
5
ns
t7
SCLK fall time
5
ns
t8
SCLK low time
40
ns
t9
SCLK high time
40
ns
t10
output valid from SCLK low
10
ns



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