TL594_07 Datasheet, PDF (5/19 Pages) Texas Instruments – PULSE-WIDTH-MODULATION CONTROL CIRCUIT

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TL594
PULSE-WIDTH-MODULATION CONTROL CIRCUIT
SLVS052G – APRIL 1988 – REVISED JANUARY 2007
ELECTRICAL CHARACTERISTICS (continued)
V_CC = 15 V, over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS⁽¹⁾
MIN
PWM Comparator Section (see Figure 2)
Input threshold voltage, FEEDBACK
Zero duty cycle
Input sink current, FEEDBACK
FEEDBACK = 0.5 V
0.3
Undervoltage Lockout Section (see Figure 2)
Threshold voltage
T_A = 25°C
∆T_A = MIN to MAX
3.5
Hysteresis ⁽⁶⁾
100
Overall Device
Standby supply current
Average supply current
R_T at V_ref,
All other inputs and outputs open
DTC = 2 V, See Figure 2
V_CC = 15 V
V_CC = 40 V
TYP ⁽²⁾
4
0.7
9
11
12.4
MAX UNIT
4.5 V
mA
6
V
6.9
mV
15
mA
18
mA
(6) Hysteresis is the difference between the positive-going input threshold voltage and the negative-going input threshold voltage.
SWITCHING CHARACTERISTICS
V_CC = 15 V, T_A = 25°C, over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
Output-voltage rise time
Output-voltage fall time
Common-emitter configuration (see Figure 3)
Output-voltage rise time
Output-voltage fall time
Emitter-follower configuration (see Figure 4)
TYP
MAX UNIT
100
200 ns
30
100 ns
200
400 ns
45
100 ns
PARAMETER MEASUREMENT INFORMATION
Amplifier Under Test
+
V_I
-
FEEDBACK
+
V_ref
-
Other Amplifier
Figure 1. Amplifier-Characteristics Test Circuit
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