参数资料
| 型号： | ISL6422BEVEZ |
| 厂商： | Intersil |
| 文件页数： | 13/18页 |
| 文件大小： | 0K |
| 描述： | IC VREG DUAL LNB W/I2C 38EPTSSOP |
| 标准包装： | 1,000 |
| 应用： | 转换器，卫星信号接收机顶盒设计 |
| 输入电压： | 8 V ~ 14 V |
| 输出数： | 2 |
| 输出电压： | 13.3 V ~ 18.3 V，14.3 V ~ 19.3 V |
| 工作温度： | -20°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 38-TFSOP （0.173"，4.40mm 宽）裸露焊盘 |
| 供应商设备封装： | 38-TSSOP 裸露焊盘 |
| 包装： | 管件 |
ISL6422B
Transmitted Data ( I 2 C bus WRITE mode)
When the R/W bit in the chip is set to 0, the main
microprocessor can write on the system registers (SR1 thru
SR8) of the ISL6422B via I 2 C bus. These will be written by
the microprocessor as shown below. The spare bits of
registers can be used for other functions.
TABLE 11. STATUS REGISTER SR1 CONFIGURATION
SR1H
0
0
0
0
0
0
0
0
0
0
0
SR1M
0
0
0
0
0
0
0
0
0
0
0
SR1L
0
0
0
0
0
0
0
0
0
0
0
OTF
X
X
X
X
X
X
X
X
X
0
1
CABF1
X
X
X
X
X
X
X
0
1
X
X
OUVF1
X
X
X
X
X
0
1
X
X
X
X
OLF1
X
0
1
X
X
X
X
X
X
X
X
BCF1
X
X
X
0
1
X
X
X
X
X
X
FUNCTION
SR1 is selected
I OUT ≤ set limit, Normal Operation
I OUT > Static/Dynamic Limiting Mode/Power blocks disabled
I OBCK ≤ set limit, Normal Operation
I OBCK > Dynamic Limiting Mode/Power blocks disabled
V IN /V OUT within specified range
V IN /V OUT is not within specified range
Cable is connected, I O is > 20mA
Cable is open, I O < 2mA
T J ≤ +130°C, Normal operation
T J > +150°C, Power blocks disabled
TABLE 12. TONE REGISTER SR2 CONFIGURATION
SR2H
0
0
0
0
0
0
SR2M
0
0
0
0
0
0
SR2L
1
1
1
1
1
1
ENT1
X
0
0
1
X
X
MSEL1
X
0
1
0
X
X
TTH1
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
FUNCTION
SR2 is selected
Int Tone = 22kHz, modulated by EXTM , t r , t f = 10μs typ
Ext 22k modulated input, t r , t f = 10μs typ
Int Tone = 22kHz, modulated by ENT bit, t r , t f = 10μs typ
TXT = 0; Decoder Rx threshold is set at 200mV max
TXT = 0; Decoder Tx threshold is set at 400mV min
NOTE: X indicates “Read Only” and is a “Don’t Care” for the Write mode.
TABLE 13. COMMAND REGISTER SR3 CONFIGURATION
SR3H
SR3M
SR3L
DCL1
VSPEN1 ISEL1R ISEL1H ISEL1L
FUNCTION
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
X
0
0
0
0
0
1
0
X
X
X
X
X
X
X
X
X
X
0
1
X
0
1
1
1
1
X
X
X
X
X
X
0
0
1
1
X
X
X
X
X
X
0
1
0
1
X
X
X
SR3 is selected
I OUT1 limit threshold = 305mA typ
I OUT1 limit threshold = 388mA typ
I OUT1 limit threshold = 570mA typ
I OUT1 limit threshold = 705mA typ
I OUT1 limit threshold = 890mA typ
Dynamic current limit NOT selected
Dynamic current limit selected
SELVTOP H/W pin Enabled
SELVTOP H/W pin Disabled
NOTE: X indicates “Read Only” and is a “Don’t Care” for the Write mode.
13
FN6486.1
August 10, 2007
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| ISL6422BEVEZ-T | 功能描述:直流/直流开关转换器 DL LNB SUPPLY + CONT VAGEG W/I2C RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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