Datasheet

C1
0.01 Fµ
(see Note B)
5 V
1/2 TLC393
Motor Speed Control
Potentiometer
+
−
+
−
10 kΩ
100 kΩ
10 kΩ
10 kΩ
1/2 TLC393
10 kΩ
5 V
DIR
EN
SN75603
Half-H Driver
12 V
Motor
DIR
EN
12 V
Direction
Control
S1
SPDT
5 V
5 V
C2
(see Note A)
5.1 kΩ
5.1 kΩ
12 V
SN75604
Half-H Driver
TLC393-Q1
SGLS198B –SEPTEMBER 2004–REVISED MAY 2013 www.ti.com
APPLICATION INFORMATION
The input 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 will not be
damaged as long as the input current 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 assure proper device operation.
To assure reliable operation, the supply should be decoupled with a capacitor (0.1-µF) positioned as close to the
device as possible.
The TLC393 has internal ESD-protection circuits that prevent 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 2. Table of Applications
FIGURE
Pulse-Width-Modulated Motor Speed Controller Figure 19
Enhanced Supply Supervisor Figure 20
Two-Phase Nonoverlapping Clock Generator Figure 21
A. The recommended minimum capacitance is 10 µF to eliminate common ground switching noise.
B. Adjust C1 for change in oscillator frequency.
Figure 19. Pulse-Width-Modulated Motor Speed Controller
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Product Folder Links: TLC393-Q1