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参数资料
| 型号： | ISL97635IRZ-T |
| 厂商： | Intersil |
| 文件页数： | 18/28页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WHT/RGB BCKLGT 24QFN |
| 标准包装： | 6,000 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 8 |
| 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： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
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ISL97635
Write Byte
The Write Byte protocol is only three bytes long. The first byte
starts with the slave address followed by the “command code,”
which translates to the “register index” being written. The third
byte contains the data byte that must be written into the register
selected by the “command code”. A shaded label is used on
cycles during which the slaved backlight controller “owns” or
“drives” the Data line. All other cycles are driven by the “host
confusion. Therefore, if the device is in the write mode where bit
0 is 0, the slave address byte is 0x58 or 01011000b. If the
device is in the read mode where bit 0 is 1, the slave address
byte is 0x59 or 01011001b.
The backlight controller may sense the state of the pins at POR
or during normal operation—the pins will not change state while
the device is in operation.
master.”
Read Byte
MSB
LSB
As shown in the Figure 21, the four byte long Read Byte
0
1
0
1
1
0
0
R/W
protocol starts out with the slave address followed by the
“command code” which translates to the “register index.”
Subsequently, the bus direction turns around with the
re-broadcast of the slave address with bit 0 indicating a read
(“R”) cycle. The fourth byte contains the data being returned
by the backlight controller. That byte value in the data byte
DEVICE
IDENTIFIER
DEVICE
ADDRESS
reflects the value of the register being queried at the
“command code” index. Note the bus directions, which are
highlighted by the shaded label that is used on cycles during
which the slaved backlight controller “owns” or “drives” the
Data line. All other cycles are driven by the “host master.”
Slave Device Address
The slave address contains 7 MSB plus one LSB as R/W bit,
FIGURE 22. SLAVE ADDRESS BYTE DEFINITION
SMBus Register Definitions
The backlight controller registers are Byte wide and
accessible via the SMBus Read/Write Byte protocols. Their
bit assignments are provided in the following sections with
reserved bits containing a default value of “0”.
but these 8 bits are usually called Slave Aaddress bytes. As
shown in Figure 22, the high nibble of the Slave Address byte is
0x5 or 0101b to denote the “backlight controller class.” Bit 3 in
the lower nibble of the Slave Address byte is 1. Bit 0 is always
the R/W bit, as specified by the SMBus protocol. Note: In this
document, the device address will always be expressed as a
full 8-bit address instead of the shorter 7-bit address typically
used in other backlight controller specifications to avoid
TABLE 2A. REGISTER LISTING
DEFAULT
SMBUS
ADDRESS
0x00
REGISTER
PWM
BIT 7
BRT7
BIT 6
BRT6
BIT 5
BRT5
BIT 4
BRT4
BIT 3
BRT3
BIT 2
BRT2
BIT 1
BRT1
BIT 0
BRT0
VALUE
0xFF
PROTOCOL
Read and Write
Brightness
Control Register
0x01
Device Control
Reserved
Reserved
Reserved
Reserved
Reserved
PWM_MD
PWM_SEL
BL_CTL
0x00
Read and Write
Register
0x02
Fault/Status
Reserved
Reserved
2_CH_SD 1_CH_SD
BL_STAT
OV_CURR
THRM_SHDN
FAULT
0x00
Read Only
Register
0x03
Identification
LED
MFG3
MFG2
MFG1
MFG0
REV2
REV1
REV0
0xC8
Read Only
Register
PANEL
0x07
DC Brightness
BRTDC7
BRTDC6
BRTDC5
BRTDC4
BRTDC3
BRTDC2
BRTDC1
BRTDC0
0xFF
Read and Write
Control Register
0x08
Configuration
Reserved
Reserved
Reserved
Reserved
Reserved
FSW
VSC1
VSC0
0xXF
Read and Write
Register
0x09
Output Channel
CH7
CH6
CH5
CH4
CH3
CH2
CH1
CH0
0xFF
Read and Write
Register
18
FN6434.2
December 22, 2008
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| ISL97635IRZ-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 |
| ISL97636AIRZ | 功能描述:LED照明驱动器 6-CH LED DRVR 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 |
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| ISL97636AIRZ-TK | 功能描述:IC LED DRIVR WHITE BCKLGT 24-QFN 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 |
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