ASM1834, ASM1834A, ASM1834D

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Figure 8. ASM1834A Open Drain

Output Pull−Up Resistor

Figure 9. ASM1834A Wired “OR” Connection

Trip Point Tolerance Selection

The 3.3VTOL and 5VTOL inputs allow independent

selection of the reset trip points. If 5VTOL is connected to

the 5 V supply input, a 10% tolerance is selected. If 5VTOL

is grounded, a 5% tolerance is selected.

If 3.3VTOL is connected to the 3.3 V supply input, a 20%

tolerance is selected. If 3.3VTOL is grounded, a 10%

tolerance is selected. (Refer to Table 6.) The 3.3VTOL and

5VTOL tolerance select inputs should be tied to the ground

Table 6.

Tolerance Select

3.3 V Input

5 V Input

3.3 V

Tolerance

TRIP Point (V)

5 V

Tolerance

TRIP Point (V)

Min

Nom

Max

Min

Nom

Max

10%

4.25

4.38

4.49

5VTOL = GND

5%

4.5

4.63

4.75

20%

2.47

2.55

2.64

3.3VTOL = GND

10%

2.80

2.88

2.97