TC52 Datasheet, PDF (3/10 Pages) Microchip Technology – Dual Channel Voltage Detector

TC52
2.0 PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1: PIN FUNCTION TABLE
Pin No.
(5-Pin SOT-23A)
1
2
3
4
5
Symbol
V_OUT1
V_IN
GND
V_IN2
V_OUT2
Description
Detector #1 output.
Supply voltage input, detect voltage 1.
Ground terminal.
Detect voltage 2.
Detector #2 output.
3.0 DETAILED DESCRIPTION
In normal steady-state operation and for either
channel, when V_IN > V_DET -, the output is high, see
Figure 3-1. (In the case of the TC52N, this is an open-
drain condition.) 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 voltages. (Also see
Section 1.0, Electrical Characteristics).
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 (open-drain for TC52N).
FIGURE 3-1:
TIMING DIAGRAM
V_INx
Detect Voltage V_DET^–
Minimum Operating
Voltage
Ground Level
V_DET⁺
V_HYST
Release Voltage
or RESET Voltage
V_OUTx
Output Voltage
Ground Level
 2002 Microchip Technology Inc.
DS21430B-page 3