参数资料
型号: LTC4261IUFD#PBF
厂商: Linear Technology
文件页数: 27/34页
文件大小: 361K
描述: IC CTRLR HOTSWAP W/ADC 24-QFN
标准包装: 73
类型: 热交换控制器
应用: 通用
内部开关:
电源电压: 9 V ~ 11.2 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-WFQFN 裸露焊盘
供应商设备封装: 24-QFN(5x4)
包装: 管件
LTC4261/LTC4261-2
27
42612fc
Figure 16. Single-Wire Broadcast Mode
Figure 17. Single-Wire Broadcast Data Format
4. Wait for the second low-to-high transistion (middle of
DMY bit).
5. Wait 3/4 of a clock cycle.
6. Sample bit CH1, wait for transistion.
7. Wait 3/4 of a clock cycle.
8. Sample bit CH0, wait for transistion.
9. Wait 3/4 of a clock cycle.
10. Sample ADC9, wait for transistion.
11. Continue until all bits are read.
APPLICATIONS INFORMATION
The above procedure can be ported to a microcontroller
or used to design a state machine in FPGA. Code should
have timeouts in case an edge is missed. Abort the read
if it takes more than double the typical time (1.2ms) for
all 18 bits to be clocked out.
A typical application circuit with the LTC4261/LTC4261-2
in the broadcast mode is illustrated in Figure 17, where
input voltage, V
DS
 of the FET and V
SENSE
 are monitored.
Register Addresses and Contents
The register addresses and contents are summerized in
Table 1 and Table 2. The function of each register bit is
detailed in Tables 3 to 9.
SDAI
SCL
SDAO
ADR1
ADR0
LTC4261
V
IN
INTV
CC
V
EE
6 ?0.51k IN SERIES
1/4W EACH
48V RTN
48V INPUT
0.1礔
1礔
7.5k
42612 F16
V
DD
5V
D
IN
V
CC
GND
ANODE
CATHODE
R
L
HCPL-0300
V
OUT
MICRO-
CONTROLLER
INTERNAL
CLK
DATA
SDAO
START
START  DMY    CH1    CH0
OC
OV    PRTY
4261 F17
UV
ADC9
.. .. ..
ADC0
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