参数资料
| 型号： | MAX8759ETI+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 23/32页 |
| 文件大小： | 0K |
| 描述： | IC CNTRL CCFL BACKLIGHT 28TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | CCFL 控制器 |
| 频率： | 30 ~ 80 kHz |
| 电流 - 电源： | 2.5mA |
| 电源电压： | 4.5 V ~ 28 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 28-WFQFN 裸露焊盘 |
| 供应商设备封装： | 28-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
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Low-Cost, SMBus, CCFL Backlight Controller
Brightness Control Register [0x00]
(POR = 0xFF)
The brightness control register of the MAX8759 con-
tains 8 bits and supports 256 brightness levels. A write-
byte cycle to register 0x00 sets the brightness level if
the inverter is in SMBus mode. A write-byte cycle to
register 0x00 has no effect if the inverter is not in
SMBus mode. A read-byte cycle to register 0x00
returns the current brightness level regardless of the
operation mode. A setting of 0xFF for register 0x00 sets
the inverter to the maximum brightness. A setting of
0x00 for register 0x00 sets the inverter to the minimum
brightness.
BIT 7 (R/ W )
BRT7
BIT 6 (R/ W )
BRT6
BIT 5 (R/ W )
BRT5
BIT 4 (R/ W )
BRT4
BIT 3 (R/ W )
BRT3
BIT 2 (R/ W )
BRT2
BIT 1 (R/ W )
BRT1
BIT 0 (R/ W )
BRT0
BRT[7..0]: 256 brightness levels.
Device Control Register [0x01] (POR = 0x00)
This register has a single bit that controls the inverter
ON/OFF state, 3 bits that control the operating mode of
the inverter, and 2 bits for setting ALS delay time. The
remaining bits are reserved for future use.
BIT 7
Reserved
BIT 6
Reserved
BIT 5 (R/ W )
ALSDEL1
BIT 4 (R/ W )
ALSDEL0
BIT 3 (R/ W )
ALS_CTL
BIT 2 (R/ W )
PWM_MD
BIT 1 (R/ W )
PWM_SEL
BIT 0 (R/ W )
LAMP_CTL
ALSDEL1: ALS delay select bit.
ALSDEL0: ALS delay select bit.
ALS_CTL: Ambient-light-sensor select bit (1 = use ALS, 0 = not use ALS).
PWM_MD: PWM mode select bit (1 = absolute brightness, 0 = percentage change).
PWM_SEL: Brightness control select bit (1 = control by PWM, 0 = control by SMBus).
LAMP_CTL: Inverter on/off bit (1 = on, 0 = off).
A value of 1 written to LAMP_CTL turns on the lamp as
quickly as possible. A value of zero written to LAMP_CTL
immediately turns off the lamp.
The PWM_SEL bit determines whether the SMBus or
PWM input should control brightness when the inverter is
not in ALS mode. This bit has no effect when ALS_CTL is
set to 1.
The PWM_MD bit selects the manner in which the PWM
input is to be interpreted. When this bit is zero, the PWM
input reflects a percentage change in the current bright-
ness (i.e., DPST mode) and follows the following equation:
DPST brightness = BRT CURRENT × D PWM
where BRT CURRENT is the current brightness setting from
either ALS or SMBus without influence from the PWM
input and D PWM is the duty cycle of the PWM signal.
When PWM_MD bit is 1, the PWM input has no effect on
the brightness setting unless the inverter is in PWM mode.
When ALS_CTL is 1, the inverter controls brightness
based primarily on the light reading from the ALS.
However, the ALS brightness setting can be modified if
the PWM_MD bit is set to zero. When the ALS_CTL bit
is zero, the inverter controls the brightness according
to the PWM input (PWM mode), the SMBus setting
(SMBus mode), or a combination of the two (SMBus
mode with DPST).
______________________________________________________________________________________
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相关代理商/技术参数 |
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| MAX8759EVKIT | 功能描述:显示开发工具 MAX8759 Eval Kit RoHS:否 制造商:4D Systems 产品:4Display Shields 工具用于评估:?OLED-160-G1, ?OLED-160-G2 接口类型:Serial 工作电源电压:5 V |
| MAX875ACPA | 制造商:Rochester Electronics LLC 功能描述: |
| MAX875ACPA+ | 功能描述:基准电压& 基准电流 2.5/5/10V Precision Voltage Reference RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
| MAX875ACSA | 制造商:Maxim Integrated Products 功能描述:- Bulk |
| MAX875ACSA+ | 功能描述:基准电压& 基准电流 2.5/5/10V Precision Voltage Reference RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
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