LTC4261CUFD#PBF Linear Technology, LTC4261CUFD#PBF Datasheet - Page 26
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LTC4261CUFD#PBF
Manufacturer Part Number
LTC4261CUFD#PBF
Description
IC CTRLR HOTSWAP W/ADC 24-QFN
Manufacturer
Linear Technology
Type
Hot-Swap Controllerr
Datasheet
1.LTC4261IGNPBF.pdf
(32 pages)
Specifications of LTC4261CUFD#PBF
Applications
General Purpose
Internal Switch(s)
No
Voltage - Supply
9 V ~ 11.2 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
24-WFQFN Exposed Pad
Family Name
LTC4261
Package Type
QFN EP
Operating Supply Voltage (min)
-12V
Operating Supply Voltage (max)
-100V
Operating Temperature (min)
0C
Operating Temperature (max)
70C
Operating Temperature Classification
Commercial
Product Depth (mm)
4mm
Product Length (mm)
5mm
Mounting
Surface Mount
Pin Count
24
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
LTC4261/LTC4261-2
APPLICATIONS INFORMATION
(DMY) to measure the internal clock cycle (i.e., the serial
data rate). Following the DMY bit are two channel code bits
CH1 and CH0 labeling the ADC channel (see Table 10). Ten
data bits of the ADC channel (ADC9-0) and three FAULT
register bits (B2, B1 and B0) are then sent out. A parity bit
(PRTY) ends each data stream. After that the SDAO line
enters the idle mode with SDAO pulled high.
The following data reception procedure is recommended:
0. Wait for INTV
1. Wait for SDAO falling edge.
2. The fi rst falling edge could be a glitch, so check again
3. Use the following low-to-high and high-to-low transis-
4. Wait for the second low-to-high transistion (middle of
5. Wait 3/4 of a clock cycle.
6. Sample bit CH1, wait for transistion.
26
after a delay of 10µs. If back to high, wait again. If still
low, it is the START bit.
tions to measure 1/2 of the internal clock cycle.
DMY bit).
CC
rising edge.
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.
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
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.
DS
of the FET and V
SENSE
are monitored.
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