TL594_07 Datasheet, PDF (4/19 Pages) Texas Instruments – PULSE-WIDTH-MODULATION CONTROL CIRCUIT

TL594
PULSE-WIDTH-MODULATION CONTROL CIRCUIT
SLVS052G – APRIL 1988 – REVISED JANUARY 2007
www.ti.com
ELECTRICAL CHARACTERISTICS
V_CC = 15 V, over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS⁽¹⁾
MIN
Reference Section
Output voltage (REF)
I_O = 1 mA, T_A = 25°C
4.95
Input regulation
V_CC = 7 V to 40 V, T_A = 25°C
Output regulation
I_O = 1 mA to 10 mA, T_A = 25°C
Output-voltage change with temperature ∆T_A = MIN to MAX
Short-circuit output current⁽³⁾
V_ref = 0
10
Amplifier Section (see Figure 1)
Input offset voltage, error amplifier
FEEDBACK = 2.5 V
Input offset current
FEEDBACK = 2.5 V
Input bias current
FEEDBACK = 2.5 V
Common-mode input voltage range,
error amplifier
Open-loop voltage amplification,
error amplifier
V_CC = 7 V to 40 V
∆V_O = 3 V, R_L = 2 kΩ, V_O = 0.5 V to 3.5 V
0.3 to
V_CC – 2
70
Unity-gain bandwidth
V_O = 0.5 V to 3.5 V, R_L = 2 kΩ
Common-mode rejection ratio,
error amplifier
V_CC = 40 V, T_A = 25°C
65
Output sink current, FEEDBACK
V_ID = –15 mV to –5 V, FEEDBACK = 0.5 V
0.3
Output source current, FEEDBACK
V_ID = 15 mV to 5 V, FEEDBACK = 3.5 V
–2
Oscillator Section, C_T = 0.01 µF, R_T = 12 kΩ (see Figure 2)
Frequency
Standard deviation of frequency⁽⁴⁾
All values of V_CC, C_T, R_T, and T_A constant
Frequency change with voltage
V_CC = 7 V to 40 V, T_A = 25°C
Frequency change with temperature⁽⁵⁾
∆T_A = MIN to MAX
Dead-Time Control Section (see Figure 2)
Input bias current
V_I = 0 to 5.25 V
Maximum duty cycle, each output
DTC = 0 V
0.45
Zero duty cycle
Input threshold voltage
Maximum duty cycle
0
Output Section
Collector off-state current
Emitter off-state current
Collector-emitter saturation voltage
Output control input current
V_C = 40 V, V_E = 0 V, V_CC = 40 V
DTC and OUTPUT CTRL = 0 V, V_C = 15 V,
V_E = 0 V, V_CC = 1 V to 3 V
V_CC = V_C = 40 V, V_E = 0
Common emitter, V_E = 0, I_C = 200 mA
Emitter follower, V_C = 15 V, I_E = –200 mA
V_I = V_ref
TYP ⁽²⁾
5
2
14
2
35
2
25
0.2
95
800
80
0.7
10
100
1
–2
3
2
4
1.1
1.5
MAX UNIT
5.05 V
25 mV
35 mV
10 mV/V
50 mA
10 mV
250 nA
1 µA
V
dB
kHz
dB
mA
mA
kHz
Hz/kHz
Hz/kHz
50 Hz/kHz
–10 µA
3.3
V
100
µA
200
–100 µA
1.3
V
2.5
3.5 mA
(1) For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
(2) All typical values, except for parameter changes with temperature, are at T_A = 25°C.
(3) Duration of the short circuit should not exceed one second.
(4) Standard deviation is a measure of the statistical distribution about the mean, as derived from the formula:
Ǹ^ȍ _{s +}
N
(x_n * X)²
n+1
N*1
(5) Temperature coefficient of timing capacitor and timing resistor is not taken into account.
4
Submit Documentation Feedback