Device operation

STM6700, STM6710

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DocID16887 Rev 4

4.3

Unused inputs

Connect unused monitor inputs to a supply voltage greater in magnitude than their specified

threshold voltages. For unused VxIN adjustable inputs connect a 1 MW resistor between the

(device power supply pin). Do not connect unused monitor inputs to ground or allow them to

float.

4.4

Adding manual reset capability

Figure 8 shows a circuit which can be used to add manual reset capability to the STM6710.

Depressing the push button switch short-circuits the analog input to ground and initiates

a RESET pulse. The switch must be open for at least 140 ms in order to deassert the

RESET output. No external switch debounce is required. A small capacitor may be used to

improve noise immunity. Figure 8 shows the addition of the manual reset capability.

Figure 8. Adding manual reset capability for STM6710 input

V1IN

V2IN

V3IN

GND

RESET

V4IN

(ADJUSTABLE

INPUT)

R1

R2

AM04624v1