TL594 Datasheet, PDF (5/16 Pages) Texas Instruments – PULSE-WIDTH-MODULATION CONTROL CIRCUIT

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TL594
PULSEĆWIDTHĆMODULATION CONTROL CIRCUIT
SLVS052F − APRIL 1988 − REVISED NOVEMBER 2003
electrical characteristics over recommended operating conditions, V_CC = 15 V,
(unless otherwise noted)
reference section
PARAMETER
TEST CONDITIONS†
TL594C, TL594I
MIN TYP‡ MAX
Output voltage (REF)
IO = 1 mA,
TA = 25°C
4.95
5 5.05
Input regulation
VCC = 7 V to 40 V,
TA = 25°C
2
25
Output regulation
IO = 1 to 10 mA,
TA = 25°C
14
35
Output-voltage change with temperature
∆TA = MIN to MAX
2
10
Short-circuit output current§
Vref = 0
10
35
50
† _{For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.}
‡ _{All typical values, except for parameter changes with temperature, are at TA = 25°C.}
§ _{Duration of the short circuit should not exceed one second.}
UNIT
V
mV
mV
mV/V
mA
amplifier section (see Figure 1)
PARAMETER
TEST CONDITIONS
TL594C, TL594I
MIN TYP‡ MAX ^UNIT
Input offset voltage, error amplifier
FEEDBACK = 2.5 V
2
10 mV
Input offset current
FEEDBACK = 2.5 V
25 250 nA
Input bias current
FEEDBACK = 2.5 V
0.2
1 µA
Common-mode input voltage range,
error amplifier
VCC = 7 V to 40 V
0.3
to
V
VCC−2
Open-loop voltage amplification, error
amplifier
∆VO = 3 V,
RL = 2 kΩ,
VO = 0.5 V to 3.5 V
70
95
dB
Unity-gain bandwidth
Common-mode rejection ratio, error
amplifier
VO = 0.5 V to 3.5 V,
VCC = 40 V,
RL = 2 kΩ
TA = 25°C
800
kHz
65
80
dB
Output sink current, FEEDBACK
VID = −15 mV to −5 V, FEEDBACK = 0.5 V
Output source current, FEEDBACK
VID = 15 mV to 5 V,
FEEDBACK = 3.5 V
‡ _{All typical values, except for parameter changes with temperature, are at TA = 25°C.}
0.3 0.7
mA
−2
mA
oscillator section, C_T = 0.01 µF, R_T = 12 kΩ (see Figure 2)
PARAMETER
TEST CONDITIONS†
TL594C, TL594I
MIN TYP‡ MAX ^UNIT
Frequency
10
Standard deviation of frequency¶
All values of VCC, CT, RT, and TA constant
100
Frequency change with voltage
VCC = 7 V to 40 V, TA = 25°C
1
Frequency change with temperature#
∆TA = MIN to MAX
† _{For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.}
‡ _{All typical values, except for parameter changes with temperature, are at TA = 25°C.}
¶ _{Standard deviation is a measure of the statistical distribution about the mean, as derived from the formula:}
ǸȍN
(xn * X)2
s+
n+1
N*1
# _{Temperature coefficient of timing capacitor and timing resistor is not taken into account.}
kHz
Hz/kHz
Hz/kHz
50 Hz/kHz
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