参数资料
型号: MAX17061ETI+
厂商: Maxim Integrated
文件页数: 18/26页
文件大小: 0K
描述: IC LED DRVR WHITE BCKLGT 28-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 75
拓扑: PWM,升压(升压)
输出数: 8
内部驱动器:
类型 - 主要: 车载,背光
类型 - 次要: 白色 LED
频率: 1MHz
电源电压: 4.5 V ~ 26 V
输出电压: 5V
安装类型: 表面贴装
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-TQFN-EP(4x4)
包装: 管件
工作温度: -40°C ~ 85°C
8-String White LED Driver with
SMBus for LCD Panel Applications
Table 2. Operating Modes Selected by Device Control Register Bits 1 and 2
PWM_MD
X
1
0
PWM_SEL
1
0
0
MODE
PWM mode
SMBus mode
DPST mode
DPWM DUTY-CYCLE SETTING
PWMI input duty cycle
SMBus command
Product of PWMI input duty cycle and SMBus command
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 except 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)
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 except LED open/short occurs (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.
REGISTER 0x03
ID REGISTER
DEFAULT VALUE 0x80
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 = 0
18
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