TL494_101 Datasheet, PDF (7/19 Pages) Texas Instruments – PULSE-WIDTH-MODULATION CONTROL CIRCUITS

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TL494
PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS074E – JANUARY 1983 – REVISED FEBRUARY 2005
PARAMETER MEASUREMENT INFORMATION
Amplifier Under Test
+
V_I
FEEDBACK
−
+
V_ref
−
Other Amplifier
Figure 2. Amplifier Characteristics
Each Output
Circuit
15 V
68 Ω
2W
Output
C_L = 15 pF
(See Note A)
t_f
90%
10%
t_r
90%
10%
TEST CIRCUIT
NOTE A: C_L includes probe and jig capacitance.
OUTPUT VOLTAGE WAVEFORM
Figure 3. Common-Emitter Configuration
Each Output
Circuit
15 V
C_L = 15 pF
(See Note A)
Output
68 Ω
2W
90%
10%
t_r
90%
10%
t_f
TEST CIRCUIT
OUTPUT VOLTAGE WAVEFORM
NOTE A: C_L includes probe and jig capacitance.
Figure 4. Emitter-Follower Configuration
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