Overvoltage

Limit

Undervoltage

Limit

V

MON

OUTB

OUTA

R

1

(2.21 M )

W

GND

1.8 V to 18 V

OUTA

OUTB

R

2

(13.7 k )

W

R

3

(69.8 k )

W

V

MON

(13.2 V to 10.8 V)

INA+

INB-

VDD

Device

RP

1

(50 k )

W

Voltage

Regulator

IN

EN

V

OUT

OUT

V

MON

UV

OV

TPS3700

SBVS187C – FEBRUARY 2012 – REVISED MAY 2013

www.ti.com

WINDOW COMPARATOR

The inverting and noninverting configuration of the comparators forms a window-comparator detection circuit

using a resistor divider network, as shown in Figure 17 and Figure 18. The input pins can monitor any system

voltage above 400 mV with the use of a resistor divider network. INA+ and INB– monitor for undervoltage and

overvoltage conditions, respectively.

Figure 17. Window Comparator Block Diagram

Figure 18. Window Comparator Timing Diagram

10

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