AS3645 austriamicrosystems, AS3645 Datasheet - Page 6

• Manufacturer Part Number: AS3645
• Description: 1000/720ma Ultra Small High Efficient Single/dual Led Flash Driver With Safety Features
• Manufacturer: austriamicrosystems

AS3645
Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s
Table 3. Electrical Characteristics (Continued)
1. I
2. Due to slope compensation of the current limit, I
3. The logic input levels V
4. A pulldown current of 5µA is equal to a pulldown resistor of 300kΩ at 1.5V
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I
I
RESDET_I2C/
2
t
t
DEBTORCH
C mode timings - see
mode
I2C/ENDEB
Symbol
t
LIMIT
t
t
t
t
SU:STO
HD:STA
SU:STA
HD:DAT
SU:DAT
f
t
t
t
SCLK
C
HIGH
LOW
I
BUF
C
EN
PD
t
t
R
I/O
F
B
is adjustable in I
Hold Time (Repeated)
Between a STOP and
Setup Time for STOP
Capacitive Load for
Pulldown current to
TORCH debounce
START Condition
Resistor detection
current threshold
SCL_EN1 Signals
SCL_EN1 Signals
Pin I2C/EN timing
Repeated START
Data Setup Time
Rise Time of Both
START Condition
Fall Time of Both
Setup Time for a
Data Hold Time
SCL_EN1 Clock
SCL_EN1 Clock
SCL_EN1 Clock
I/O Capacitance
HIGH Period of
Bus Free Time
LOW Period of
SDA_EN2 and
SDA_EN2 and
Each Bus Line
(SDA_EN2,
Parameter
Frequency
SCL_EN1)
Condition
Condition
GND
time
2
C mode (using register
Figure 3 on page 7
IH
4
and V
7
8
5
6
IL
allow for 1.8V supplied driving circuit
C
Pin I2C/EN only during detection of external
B
Pins TORCH, STROBE in all modes and
time from SCL/EN1=0 and SDA_EN2=0
time from I2C/EN = 1 to accept I
pins SCL/EN1 and SDA/EN2 in parallel
— total capacitance of one bus line in pF
coil_peak (page
LIMIT
Revision 1.6
interface mode
resistor R
to I2C/EN = 0
changes with duty cycle - see
Condition
condition
ISET
23)) and fixed to 1.75A in parallel interface
2
C start
Figure 16 on page
0.1C
0.1C
20 +
20 +
Min
250
100
6.3
1.3
0.6
1.3
0.6
0.6
0.6
0
0
B
B
Typ
200
5
9
Max
11.7
400
300
300
400
0.9
10
10.
5
Unit
kHz
ms
µA
µA
pF
pF
µs
µs
µs
µs
µs
µs
µs
µs
ns
ns
ns
µs
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