AS3645 austriamicrosystems, AS3645 Datasheet - Page 23

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

AS3645
Datasheet - D e t a i l e d D e s c r i p t i o n
Table 11.
Table 12.
www.austriamicrosystems.com
1:0
7:6
Bit
Bit
2
3
4
5
0
1
Control
Fault
Addr: 4
Addr: 5
Register
fault_coil_peak
mode_setting
ext_torch_on
Register
strobe_type
strobe_on
Bit Name
coil_peak
Bit Name
reserved
out_on
Default Access
Default Access
00
10
This register identifies all the different fault conditions and provide
X
1
0
1
1
0
This register defines the operating mode and different protection
R/W
R/W
R/W
R/W
R/W
R/W
R
R
Revision 1.6
Define the AS3645 operating mode (only used in I
Defines if the STROBE input is edge or level sensitive; see
information about the LED detection
00
01
10
11
00
01
10
11
0
1
0
1
0
1
0
1
0
1
see
Enables the output current sources (pin LED_OUT and
Enables the external torch mode input (pin TORCH)
Defines the maximum coil current (parameter I
DCDC Inductor Peak Current Limitation on page 11
functions in I
Control
(automatically cleared after a flash pulse)
Fault
also bit
Enables the STROBE input
see also
see also
STROBE input is edge sensitive
STROBE input is level sensitive
Coil current has exceeded I
Register
reserved - don’t use
enable input pin TORCH;
Register
disable input pin TORCH
STROBE input disabled
STROBE input enabled
external torch mode;
2
Description
strobe_on (page 23)
Description
C mode
assist light mode
IND_OUT)
outputs disabled
outputs enabled
indicator mode
mode_setting (page 23)
ext_torch_on (page 23)
I
I
in flash mode
LIMIT
I
LIMIT
I
LIMIT
LIMIT
flash mode
No fault
= 1.25A
= 1.75A
= 1.5A
= 2.0A
LIMIT
2
LIMIT
C mode)
23 - 33
)