TL594
PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS052C – APRIL 1988 – REVISED JULY 1999
electrical characteristics over recommended operating free-air temperature range, V
CC
= 15 V,
(unless otherwise noted) (continued)
switching characteristics, T
A
= 25
°
C
PARAMETER
Output-voltage rise time
Output-voltage fall time
Output-voltage rise time
Output-voltage fall time
TEST CONDITIONS
Common emitter configuration (see Figure 3
Common-emitter
Emitter-follower configuration (see Figure 4)
TL594C, TL594I
MIN TYP†
MAX
100
30
200
45
200
100
400
100
UNIT
ns
ns
ns
ns
† All typical values except for parameter changes with temperature are at TA = 25°C.
electrical characteristics over recommended operating conditions, V
CC
= 15 V, T
A
= 25°C
(unless otherwise noted)
reference section
PARAMETER
Output voltage (REF)
Input regulation
Output regulation
Short-circuit output current‡
‡ Duration of the short circuit should not exceed one second.
TEST CONDITIONS
IO = 1 mA
VCC = 7 V to 40 V
IO = 1 to 10 mA
Vref = 0
TL594Y
MIN
TYP
5
2
14
35
MAX
UNIT
V
mV
mV
mA
oscillator section, C
T
= 0.01
µF,
R
T
= 12 kΩ (see Figure 2)
PARAMETER
Frequency
Standard deviation of frequency§
Frequency change with voltage
N
All values of VCC, CT, RT, and TA constant
VCC = 7 V to 40 V
§ Standard deviation is a measure of the statistical distribution about the mean as derived from the formula:
(x n
N
TEST CONDITIONS
TL594Y
MIN
TYP
10
100
1
MAX
UNIT
kHz
Hz/kHz
Hz/kHz
s
+
n 1
+
*
X)2
*
1
TEST CONDITIONS
FEEDBACK = 2.5 V
FEEDBACK = 2.5 V
FEEDBACK = 2.5 V
∆V
O = 3 V,
VO = 0.5 V to 3.5 V,
VCC = 40 V,
VID = –15 mV to –5 V,
RL = 2 kΩ,
RL = 2 kΩ
TA = 25°C
FEEDBACK = 0.5 V
VO = 0.5 V to 3.5 V
TL594Y
MIN
TYP
2
25
0.2
95
800
80
0.7
MAX
UNIT
mV
nA
µA
dB
kHz
dB
mA
amplifier section (see Figure 1)
PARAMETER
Input offset voltage, error amplifier
Input offset current
Input bias current
Open-loop voltage amplification, error
amplifier
Unity-gain bandwidth
Common-mode rejection ratio, error
amplifier
Output sink current, FEEDBACK
6
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•
DALLAS, TEXAS 75265
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