Datasheet

TL594
www.ti.com SLVS052H –APRIL 1988–REVISED JANUARY 2014
Electrical Characteristics (continued)
V
CC
= 15 V, over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS
(1)
MIN TYP
(2)
MAX UNIT
PWM Comparator Section (see Figure 2)
Input threshold voltage, FEEDBACK Zero duty cycle 4 4.5 V
Input sink current, FEEDBACK FEEDBACK = 0.5 V 0.3 0.7 mA
Undervoltage Lockout Section (see Figure 2)
T
A
= 25°C 6
Threshold voltage V
ΔT
A
= MIN to MAX 3.5 6.9
Hysteresis
(6)
100 mV
Overall Device
V
CC
= 15 V 9 15
R
T
at V
ref
,
Standby supply current mA
All other inputs and outputs open
V
CC
= 40 V 11 18
Average supply current DTC = 2 V, See Figure 2 12.4 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 TYP MAX UNIT
Output-voltage rise time 100 200 ns
Common-emitter configuration (see Figure 3)
Output-voltage fall time 30 100 ns
Output-voltage rise time 200 400 ns
Emitter-follower configuration (see Figure 4)
Output-voltage fall time 45 100 ns
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