CS1630 Datasheet, PDF (39/56 Pages) Cirrus Logic – 2-Channel TRIAC Dimmable LED Driver IC

CS1630/31
6.24 Peak Current (PEAK_CUR) – Address 51
7
6
5
4
3
2
1
0
2⁷
2⁶
2⁵
2⁴
2³
2²
2¹
2⁰
PEAK_CUR sets the boost stage peak current, which assists in configuring the boost output power. The register
value is an unsigned integer in the range of 0value255 where the LSB = 4.1mA.The peak current can be
configured from 0mA to 1.0455A.
6.25 Configuration 38 (Config38) – Address 70
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
CRC
Number
[ 7:1 ]
[0]
Name
-
CRC
Description
Reserved
Configures the communication system to use the CRC value in the CRC_TAG
register (see "CRC Tag (CRC_TAG) – Address 102" on page 50). Enabling
this bit is required when programming the OTP registers of the CS1630/31.
0 = Disables the use of the CRC register
1 = Enables the use of the CRC register
6.26 Configuration 44 (Config44) – Address 76
7
6
5
4
3
-
-
-
-
-
2
1
0
-
RATE1
RATE0
Number
[ 7:2 ]
[ 1:0 ]
Name
-
RATE[1:0]
Description
Reserved
Configures the dimming rate for the external overtemperature protection
(eOTP) feature which decreases the second stage dim level once the mea-
sured 8-bit temperature value corresponding to the external NTC resistance
connected to pin eOTP exceeds the temperature value configured using bits
eOTP[4:0] (Config59[7:3] of Address 91). The rate at which the 12-bit dim
level is decreased is set to any one of the following:
00 = 4 dims per temperature code above CODE_TEMPeOTP
01 = 8 dims per temperature code above CODE_TEMPeOTP
10 = 16 dims per temperature code above CODE_TEMPeOTP
11 = 32 dims per temperature code above CODE_TEMPeOTP
DS954F2
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