- 您现在的位置：买卖IC网 > Datasheet目录335 > ISL97635AIRZ (Intersil)IC LED DRVR WHT/RGB BCKLGT 24QFN Datasheet资料下载
参数资料
| 型号： | ISL97635AIRZ |
| 厂商： | Intersil |
| 文件页数： | 20/28页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WHT/RGB BCKLGT 24QFN |
| 标准包装： | 75 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 6 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 车载，背光 |
| 类型 - 次要： | RGB，白色 LED |
| 频率： | 600kHz，1.2MHz |
| 电源电压： | 6 V ~ 24 V |
| 输出电压： | 34.5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-VFQFN 裸露焊盘 |
| 供应商设备封装： | 24-QFN 裸露焊盘（4x4） |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 85°C |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页当前第20页第21页第22页第23页第24页第25页第26页第27页第28页
ISL97635A
Device Control Register (0x01)
This register has two bits that control the operating mode of
programmed in the SMBus register 0x00, i.e. DPST (Display
Power Saving Technology) mode as shown in Equation 15:
the backlight controller and a single bit that controls the BL
ON/OFF state. The remaining bits are reserved. The bit
DPST Brightness = Cbt × PWMI
(EQ. 15)
assignment is shown in Figure 24. All other bits in the Device
Control Register will read as low unless otherwise written.
Bits 7 and 6 are not implemented and will always read low.
TABLE 3. OPERATING MODES SELECTED BY DEVICE
CONTROL REGISTER BITS 1 AND 2
Where:
Cbt = Current brightness setting from SMBus register 0x00
without influence from the PWMI
PWMI = is the percent duty cycle of the PWMI
PWM_MD PWM_SEL
MODE
For example, the Cbt = 50% duty cycle programmed in the
X
1
0
1
0
0
PWMI Mode
SMBus Mode
SMBus and PWMI Mode with DPST
SMBus register 0x00 and the PWM frequency is tuned to be
200Hz with an appropriate capacitor at the FPWM pin. On the
other hand, PWMI is fed with a 1kHz 30% high PWM signal.
When PWM_SEL = 0 and PWM_MD = 0, the device is in DPST
operation where DPST brightness = 15% PWM dimming at
The PWM_SEL bit determines whether the SMBus or PWMI
input should drive the output brightness in terms of PWM
dimming. When PWM_SEL bit is 1, the PWMI drives the
output brightness regardless of what the PWM_MD is.
When the PWM_SEL bit is 0, the PWM_MD bit selects the
manner in which the PWM dimming is to be interpreted;
when this bit is 1, the PWM dimming is based on the SMBus
brightness setting. When this bit is 0, the PWM dimming
reflects a percentage change in the current brightness
200Hz.
? All reserved bits return a “0” when read.
? All reserved bits have no functional effect when written.
? All defined control bits return their current, latched value
when read.
? A value of 1 written to BL_CTL turns on the BL in 4ms or less
after the write cycle completes. The BL is deemed to be on
REGISTER 0x00
PWM BRIGHTNESS CONTROL REGISTER
BRT7
Bit 7 (R/W)
BRT6
Bit 6 (R/W)
BRT5
Bit 5 (R/W)
BRT4
Bit 4 (R/W)
BRT3
Bit 3 (R/W)
BRT2
Bit 2 (R/W)
BRT1
Bit 1 (R/W)
BRT0
Bit 0 (R/W)
BIT ASSIGNMENT
BRT[7..0]
REGISTER 0x01
BIT FIELD DEFINITIONS
= 256 steps of PWM brightness levels
FIGURE 23. DESCRIPTIONS OF BRIGHTNESS CONTROL REGISTER
DEVICE CONTROL REGISTER
RESERVED RESERVED RESERVED RESERVED RESERVED
PWM_MD
PWM_SEL
BL_CTL
Bit 7 (R/W)
Bit 6 (R/W)
Bit 5 (R/W)
Bit 4 (R/W)
Bit 3 (R/W)
Bit 2 (R/W)
Bit 1 (R/W)
Bit 0 (R/W)
BIT ASSIGNMENT
PWM_MD
PWM_SEL
BL_CTL
BIT FIELD DEFINITIONS
= PWM mode select bit (1 = absolute brightness,
0 = % change) default = 0
= Brightness control select bit (1 = control by
PWMI, 0 = control by SMBus) default = 0
= BL On/Off (1 = On, 0 = Off) default = 0
FIGURE 24. DESCRIPTIONS OF DEVICE CONTROL REGISTER
20
FN6564.2
December 22, 2008
相关PDF资料 |
PDF描述 |
|---|---|
| ISL97635IRZ | IC LED DRVR WHT/RGB BCKLGT 24QFN |
| ISL97636AIRZ | IC LED DRIVR WHITE BCKLGT 24-QFN |
| ISL97636IRZ-TK | IC LED DRIVR WHITE BCKLGT 24-QFN |
| ISL97671AIRZ | IC LED DVR PWM CTRL 6CH 20QFN |
| ISL97672AIRZ | IC LED DRVR LOW DIMMING 20QFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL97635AIRZ-T | 功能描述:IC LED DRVR WHT/RGB BCKLGT 24QFN RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 恒定电流:- 恒定电压:- 拓扑:升压（升压），切换式电容器（充电泵） 输出数:1 内部驱动器:是 类型 - 主要:背光 类型 - 次要:白色 LED 频率:625kHz ~ 875kHz 电源电压:2.7 V ~ 5.3 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-µMAX 包装:带卷 (TR) 工作温度:-40°C ~ 85°C |
| ISL97635AIRZ-TK | 功能描述:IC LED DRVR WHT/RGB BCKLGT 24QFN RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 恒定电流:- 恒定电压:- 拓扑:升压（升压），切换式电容器（充电泵） 输出数:1 内部驱动器:是 类型 - 主要:背光 类型 - 次要:白色 LED 频率:625kHz ~ 875kHz 电源电压:2.7 V ~ 5.3 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-µMAX 包装:带卷 (TR) 工作温度:-40°C ~ 85°C |
| ISL97635AIRZ-TKR5306 | 制造商:Intersil Corporation 功能描述: |
| ISL97635IRZ | 功能描述:IC LED DRVR WHT/RGB BCKLGT 24QFN RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 恒定电流:- 恒定电压:- 拓扑:升压（升压），切换式电容器（充电泵） 输出数:1 内部驱动器:是 类型 - 主要:背光 类型 - 次要:白色 LED 频率:625kHz ~ 875kHz 电源电压:2.7 V ~ 5.3 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-µMAX 包装:带卷 (TR) 工作温度:-40°C ~ 85°C |
| ISL97635IRZ-T | 功能描述:IC LED DRVR WHT/RGB BCKLGT 24QFN RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 恒定电流:- 恒定电压:- 拓扑:升压（升压），切换式电容器（充电泵） 输出数:1 内部驱动器:是 类型 - 主要:背光 类型 - 次要:白色 LED 频率:625kHz ~ 875kHz 电源电压:2.7 V ~ 5.3 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-µMAX 包装:带卷 (TR) 工作温度:-40°C ~ 85°C |
发布紧急采购，3分钟左右您将得到回复。