STEVAL-TLL004V1 STMicroelectronics, STEVAL-TLL004V1 Datasheet - Page 22

• Manufacturer Part Number: STEVAL-TLL004V1
• Description: BOARD EVAL FLASH DRIVER STCF03
• Manufacturer: STMicroelectronics

Specifications of STEVAL-TLL004V1

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8431

Description of internal registers
Table 12.
8.8
8.9
Table 13.
1. 20 mA output current is achievable only if the supply voltage is higher than 3.3 V.
Table 14.
Note:
22/35
Internal
current [mA]
current
Resist.
T_DIM
F_DIM
Sense
V
SHUTDOWN MODE
(hex)
(hex)
[mA]
[mV]
AUXI (hex)
LED
step
REF1
AUX LED
SUB ADD=02
RESET Value
(write mode)
Power ON,
AUX_REG
R
R
16
33
0
1
+
TR
FL
R
R
19
40
1
2
+
TR
Auxiliary register
AUXI_0~3
This 4 bits register defines the AUX LED current from 0 to 20 mA. See AUX LED dimming
table for reference. Loading any value between 1 and 15 also starts the AUX LED current
source timer, if enabled. The AUX LED current source is active only in Ready Mode, and is
deactivated in any other mode.
AUXT_0~3
This 4 bit register controls the timer that defines the ON-time of the AUX LED current
source. ON-time starts when the AUXI register is loaded with any value other than zero, and
stops after the time defined in the AUXT register. Values from 1 to 14 of the AUXT register
correspond to an ON-time of the AUX LED ranging from 100 to 1400 ms in 100 ms steps.
The value 15 puts the AUX LED to the continuous light mode. The activation/deactivation of
the AUX LED current source is controlled using only the AUXI register.
Auxiliary LED dimming table
Torch mode and flash mode dimming registers settings
FL
LED current values refer to R
0.0
R
R
0
23
47
2
3
+
TR
FL
R
R
27
56
1.3
3
4
+
TR
FL
1
AUXI_3
R
R
MSB
32
67
4
5
+
TR
FL
0
2.6
2
R
R
39
80
5
6
+
TR
FL
4.0
R
R
46
95
3
6
7
+
AUXI_2
TR
FL
0
113 134 160 190 227
R
R
55
7
8
+
TR
5.3
FL
4
R
R
65
8
0
9
+
TR
FL
FL
Doc ID 13169 Rev 7
6.6
(1)
AUXI_1
5
= 0.27 Ω, R
R
R
77
10
9
1
+
TR
FL
0
8.0
R
R
92
11
6
A
+
2
TR
FL
R
109 124 147 175 209 248 296 352 418 498 592 705 840
R
12
B
3
+
AUXI_0
TR
FL
9.3
7
TR
0
R
13
33
C
4
FL
= 1.8 Ω.
10.6 12.0 13.3 14.6 16.0 17.3 18.6 20.0
8
R
14
40
D
5
FL
AUXT_3
R
15
47
E
6
FL
9
0
R
16
56
F
7
FL
A
R
17
67
8
FL
AUXT_2
R
18
79
B
0
9
FL
R
19
95
A
FL
C
AUXT_1
113 134 160 190 227
R
20
B
FL
0
D
R
21
C
FL
R
22
D
FL
E
AUXT_0
STCF03
LSB
R
23
E
0
FL
F
R
24
F
FL