参数资料
型号: LDS8160-002-T2
厂商: IXYS
文件页数: 8/39页
文件大小: 0K
描述: IC LED DVR WHT/RGB BCKLGT 16WQFN
标准包装: 1
系列: LED-Sense™, PowerLite™
拓扑: 线性(LDO),PWM
输出数: 6
内部驱动器:
类型 - 主要: 背光
类型 - 次要: RGB,白色 LED
频率: 1.2MHz
电源电压: 2.3 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 16-WFQFN 裸露焊盘
供应商设备封装: 16-TQFN
包装: 标准包装
工作温度: -40°C ~ 85°C
其它名称: LDS8160-002-T2-6
LDS8160
ADDRESS
A2h
A4h
DESCRIPTION
LED-A dV F /dT [7:0]
LED-B dV F /dT [7:0]
BITS
8
8
NOTES
User-loaded V F temperature coefficient for LEDs used at
Banks A, B, C respectively.
Negative tracking assumed with temperature;
Bits from bit 7 to bit 5 represent integer part and
Example: Temperature coefficient = -2.26 mV/ C;
A6h
LED-C dV F /dT [7:0]
8
bits from bit 4 to bit 0 - fractional part of the coefficient
0
Bit 7 – bit 5 = 2 (decimal) = 010 (bin), and
Bit 4 – bit 0 = INT{0.26 / 0.03125} = 8 (decimal) = 01000 (bin)
User loads 010 01000 (bin) = 48h = -2.25 (closest setting)
Silicon diode η (eta) or non-ideality factor:
Factory recommended loaded value = 1.0000 =
01000000(bin) = 40h
Bits from bit 7 to bit 6 represent integer part and
C0h
Silicon diode η [7:0]
8
bits from bit 5 to bit 0 - fractional part (resolution = 0.015625
per LSB)
Example: η = 1.000;
Bit 7 – bit 6 = 1 (decimal) = 01 (bin), and
Bit 5 – bit 0 = INT{0.000 / 0.015625} = 0 (dec) = 000000 (bin)
User loads 01 000000 = 40h = 1.0000
LED Tj offset from Ta (user-loaded) – correction from ambient
D0h
LED Tj offset [4:0]
5
temperature to LED junction temperature.
Factory default = 04h
Accounts for LED package thermal characteristics. See
Appendix 3 for details.
Silicon diode Tj offset from Ta – correction from ambient
D2h
Silicon diode Ta offset
[4:0]
5
temperature to Silicon diode junction temperature. Accounts
for LDS8160 package thermal characteristics. Factory default
= 02h
Silicon diode series resistance offset
Formula (decimal) = 8192 x [( Rs-si x 8 x 10 A)/1.14 V]
Formula (decimal) = 8192 x [(Rs Ω x 8 x 10 A) / 1.14V]LEDs
D4h
D6h
D8h
DAh
Silicon diode R s offset
[7:0]
LED-A Rs offset [7:0]
LED-B Rs offset [7:0]
LED-C Rs offset [7:0]
8
8
8
8
Factory recommended loaded value = 04h (4 decimal) = ~ 68
? =Rs -si
-6
Rs offset (user-loaded) for Banks A, B, and C LEDs for
specific LEDs used.
User loads per LED used. (1/slope of high current region of
LED I-V characteristic).
-4
Offset to establish minimum T-code = 0
This offset insures that -35C will equal T-code = 0. Factory
DCh
T MIN offset [7:0]
8
0
default supplied (237 decimal = EDh)
Table 1
Register
Channel Enable Register
Address
Bit 7
Bit 6
Bit 5 Bit 4 Bit 3
Bit 2
Bit 1
Bit 0
03h
LED OT Flag
1 = OT
N/A
Enable
C2
Enable
C1
Enable
B2
Enable
B1
Enable
A2
Enable
A1
? 2009 IXYS Corp.
Characteristics subject to change without notice
8
Doc. No. 8160_DS, Rev. N1.0
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