ALQ07 Datasheet, PDF (17/28 Pages) Astec America, Inc – Technical Reference Notes

17
Feature Description
CNT Function
Two CNT logic options are available. The CNT logic, CNT voltage and the module
working state are as the following Table 1.
L
H
OPEN
N
ON
OFF
OFF
P
OFF
ON
ON
Table 1
N--- means “Negative Logic”, P--- means “Positive Logic”
L--- means “Low Logic Voltage”, -0.7V≤L≤1.8V
H--- means “High Logic Voltage”, 3.5V≤H≤12V
ON--- means “Module is on”, OFF--- means “Module is off”
Open--- means “CNT pin is left open “
Note:
Normally, V_CNT ≤12V, but when CNT is left open, V_CNT may reach to 15V.
The following Figure shows a few simple CNT circuits.
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003