TLC3704_14 Datasheet, PDF (19/37 Pages) Texas Instruments – QUAD MICROPOWER LinCMOS. VOLTAGE COMPARATORS

TLC3704, TLC3704M
QUAD MICROPOWER LinCMOS VOLTAGE COMPARATORS
SLCS117C − NOVEMBER 1986 − REVISED NOVEMBER 2009
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_DD = 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
Pulse-width-modulated motor speed controller
Enhanced supply supervisor
Two-phase nonoverlapping clock generator
Micropower switching regulator
FIGURE
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