(2)

For the specific undervoltage detection of 2.0 V using the TLV3012-Q1, the following results are calculated.

(3)

where:

• R2 is set to 1 MΩ

• VBAT is set to 2.0 V

• VREF is set to1.242 V

Choose RTOTAL (R1 + R2) such that the current through the divider is at least 100 times higher than the input bias

current (IBIAS). The resistors can have high values to minimize current consumption in the circuit without adding

significant error to the resistive divider.

8.2.1.3 Application Performance Plots

T

Time (s)

1.30

1.45

1.60

1.75

1.90

2.05

2.20

IN

0.00

2.00

VBAT

0.00

3.30

Vout

3.30

1.242

2.00

OUT (V)

IN+ (V)

VBAT (V)

Time (s)

0.00

Figure 8-4.

TLV3011-EP, TLV3012-EP

SGLS349A – OCTOBER 2006 – REVISED MAY 2023

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