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8-String White LED Driver with
SMBus for LCD Panel Applications
Fault/Status Register: Address is 0x02. This register has 6 status bits that allow monitoring the backlight con-
troller’s operating state. Bit 6 and Bit 7 are reserved bits, and Bit 3 is the status indicator or backlight. The other 5
bits are fault indicators. Bit 0 is a logical OR of all fault codes including LED open/short to simplify error detection.
All the bits in this register are read only. The reserved bits return a zero when read.
REGISTER 0x02
FAULT STATUS REGISTER
DEFAULT VALUE 0x00
RESERVED
Bit 7 (R)
RESERVED
Bit 6 (R)
2_CH_SD
Bit 5 (R)
1_CH_SD
Bit 4 (R)
BL_STAT
Bit 3 (R)
OV_CURR
Bit 2 (R)
THRM_SHDN
Bit 1 (R)
FAULT
Bit 0 (R)
Bit field definitions:
BIT FIELD
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
DEFINITION
2_CH_SD
1_CH_SD
BL_STAT
OV_CURR
THRM_SHD
FAULT
DESCRIPTION
Two or more LED output channels are faulted (1 = faulted, 0 = OK)
At least one LED output channel is faulted (1 = faulted, 0 = OK)
Backlight status (1 = BL on, 0 = BL off)
Input overcurrent (1 = overcurrent condition, 0 = current OK)
Thermal shutdown (1 = thermal fault, 0 = thermal OK)
Any fault, logic OR of all fault conditions (1 = fault condition, 0 = no fault)
Identification Register: Address is 0x03. The ID register contains two bit fields to denote the manufacturer and the
silicon revision of the controller IC. The bit field widths were chosen to allow up to 32 vendors with up to eight silicon
revisions each. This register is read only. The value for the MAX17061A is 0x81.
REGISTER 0x03
ID REGISTER
DEFAULT VALUE 0x81
LED PANEL
Bit 7 = 1
MFG3
Bit 6 (R)
MFG2
Bit 5 (R)
MFG1
Bit 4 (R)
MFG0
Bit 3 (R)
REV2
Bit 2 (R)
REV1
Bit 1 (R)
REV0
Bit 0 (R)
Bit field definitions:
BIT FIELD
Bit 7
Bit [6..3]
Bit [2..0]
DEFINITION
LED panel
MFG[3..0]
REV[2..0]
DESCRIPTION
Display panel using LED backlight, bit 7 = 1
Manufacturer ID; see Table 3, default = 0
Silicon rev (revs 0 –7 allowed for silicon spins), default = 1
The list of ID values for vendors is shown in Table 3.
Table 3. Vendor IDs
Thermal Shutdown
The MAX17061A includes a thermal-protection circuit.
When the local IC temperature exceeds +160°C (typ),
the controller and current sources shut down and do
not restart until the die temperature drops by 15°C.
When thermal shutdown occurs, Bit 0 and Bit 1 of
fault/status register is set to 1.
ID
0
1
2
3
4
5
6
7–14
15
VENDOR
Maxim
Micro Semi
MPS
O2 Micro
TI
ST
Analog Devices
Reserved
Vendor ID register not implemented
18
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MAX17061AEVKIT+ 功能描述:LED 照明开发工具 MAX17061A Eval Kit RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装:
MAX17061ETI+ 功能描述:LED照明驱动器 8-String White LED Driver w/SMBus RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
MAX17061ETI+T 功能描述:LED照明驱动器 8-String White LED Driver w/SMBus RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
MAX17061EVCMAXQU+ 功能描述:LED 照明开发工具 Evaluation Kit/Evaluation System for the MAX17061 RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装:
MAX17061EVKIT+ 功能描述:LED 照明开发工具 MAX17061 Eval Kit RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装:
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