Datasheet

TLC3704, TLC3704M

QUAD MICROPOWER LinCMOS VOLTAGE COMPARATORS

SLCS117C − NOVEMBER 1986 − REVISED NOVEMBER 2009

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

APPLICATION INFORMATION

The inputs should always remain within the supply rails in order to avoid forward biasing the diodes in the electrostatic

discharge (ESD) protection structure. If either input exceeds this range, the device is not damaged as long as the

input is limited to less than 5 mA. To maintain the expected output state, the inputs must remain within the

common-mode range. For example, at 25°C with V

= 5 V, both inputs must remain between − 0.2 V and 4 V to

ensure proper device operation. To ensure reliable operation, the supply should be decoupled with a capacitor

(0.1 µF) that is positioned as close to the device as possible.

Output and supply current limitations should be watched carefully since the TLC3704 does not provide current

protection. For example, each output can source or sink a maximum of 20 mA; however, the total current to ground

can only be an absolute maximum of 60 mA. This prohibits sinking 20 mA from each of the four outputs simultaneously

since the total current to ground would be 80 mA.

The TLC3704 has internal ESD-protection circuits that prevents functional failures at voltages up to 2000 V as tested

under MIL-STD-883C, Method 3015.2; however, care should be exercised in handling these devices as exposure

to ESD may result in the degradation of the device parametric performance.

Table of Applications

FIGURE

Pulse-width-modulated motor speed controller 25

Enhanced supply supervisor 26

Two-phase nonoverlapping clock generator 27

Micropower switching regulator 28