TC51N5002ECBTR Datasheet, PDF (4/14 Pages) Microchip Technology – 1A Voltage Detector with Output Delay

TC51
3.0 DETAILED DESCRIPTION
In normal steady-state operation, when V_IN > V_DET -,
the output is high, see Figure 3-1. If and when the
input falls below V_DET -, the output pulls down (Logic 0)
to V_SS. Generally, V_OUT can pull down to within 0.5V of
V_SS at rated output current and input voltage. (Also see
Section 1.0, Electrical Characteristics).
FIGURE 3-1:
TIMING DIAGRAM
The output, V_OUT, stays valid until the input voltage falls
below the minimum operating voltage, V_INMIN, of 0.7V.
Below this minimum operating voltage, the output is
undefined. During power-up or anytime V_IN has fallen
below V_INMIN, V_OUT will remain undefined until V_IN rises
above V_INMIN, at which time the output becomes valid.
V_OUT is maintained in its active low state while
V_INMIN < V_IN < V_DET+. (V_DET+ = V_DET - + V_HYST). If and
when the input rises above V_DET+, the output will
assume its inactive state after Delay Time (T_DLY).
V_IN
Detect Voltage V_DET-
Minimum Operating
Voltage
Ground Level
V_DET+
V_HYST
Release
Voltage
V_OUT
Output Voltage
Delay Time (T_DLY)
Ground Level
DS21429B-page 4
 2002 Microchip Technology Inc.