TL494
ELECTRICAL CHARACTERISTICS
(VCC = 15 V, CT = 0.01
µF,
RT = 12 kΩ, unless otherwise noted.)
For typical values TA = 25°C, for min/max values TA is the operating ambient temperature range that applies, unless otherwise noted.
Characteristics
ERROR AMPLIFIER SECTION
Input Offset Voltage (VO (Pin 3) = 2.5 V)
Input Offset Current (VO (Pin 3) = 2.5 V)
Input Bias Current (VO (Pin 3) = 2.5 V)
Input Common Mode Voltage Range (VCC = 40 V, TA = 25°C)
Open Loop Voltage Gain (∆VO = 3.0 V, VO = 0.5 V to 3.5 V, RL = 2.0 kΩ)
Unity–Gain Crossover Frequency (VO = 0.5 V to 3.5 V, RL = 2.0 kΩ)
Phase Margin at Unity–Gain (VO = 0.5 V to 3.5 V, RL = 2.0 kΩ)
Common Mode Rejection Ratio (VCC = 40 V)
Power Supply Rejection Ratio (∆VCC = 33 V, VO = 2.5 V, RL = 2.0 kΩ)
Output Sink Current (VO (Pin 3) = 0.7 V)
Output Source Current (VO (Pin 3) = 3.5 V)
PWM COMPARATOR SECTION
(Test Circuit Figure 11)
Input Threshold Voltage (Zero Duty Cycle)
Input Sink Current (V(Pin 3) = 0.7 V)
DEADTIME CONTROL SECTION
(Test Circuit Figure 11)
Input Bias Current (Pin 4) (VPin 4 = 0 V to 5.25 V)
Maximum Duty Cycle, Each Output, Push–Pull Mode
(VPin 4 = 0 V, CT = 0.01
µF,
RT = 12 kΩ)
(VPin 4 = 0 V, CT = 0.001
µF,
RT = 30 kΩ)
Input Threshold Voltage (Pin 4)
(Zero Duty Cycle)
(Maximum Duty Cycle)
OSCILLATOR SECTION
Frequency (CT = 0.001
µF,
RT = 30 kΩ)
Standard Deviation of Frequency* (CT = 0.001
µF,
RT = 30 kΩ)
Frequency Change with Voltage (VCC = 7.0 V to 40 V, TA = 25°C)
Frequency Change with Temperature (∆TA = Tlow to Thigh)
(CT = 0.01
µF,
RT = 12 kΩ)
UNDERVOLTAGE LOCKOUT SECTION
Turn–On Threshold (VCC increasing, Iref = 1.0 mA)
TOTAL DEVICE
Standby Supply Current (Pin 6 at Vref, All other inputs and outputs open)
(VCC = 15 V)
(VCC = 40 V)
Average Supply Current
(CT = 0.01
µF,
RT = 12 kΩ, V(Pin 4) = 2.0 V)
(VCC = 15 V) (See Figure 12)
ICC
–
–
–
5.5
7.0
7.0
10
15
mA
–
mA
Vth
5.5
6.43
7.0
V
fosc
σf
osc
∆f
osc (∆V)
∆f
osc (∆T)
–
–
–
–
40
3.0
0.1
–
–
–
–
12
kHz
%
%
%
IIB (DT)
DCmax
45
–
Vth
–
0
2.8
–
3.3
–
48
45
50
50
V
–
–2.0
–10
µA
%
VTH
II–
–
0.3
2.5
0.7
4.5
–
V
mA
VIO
IIO
IIB
VICR
AVOL
fC–
φ
m
CMRR
PSRR
IO–
IO+
70
–
–
65
–
0.3
2.0
–
–
–
2.0
5.0
–0.1
–0.3 to VCC–2.0
95
350
65
90
100
0.7
–4.0
–
–
–
–
–
–
–
10
250
–1.0
mV
nA
µA
V
dB
kHz
deg.
dB
dB
mA
mA
Symbol
Min
Typ
Max
Unit
* Standard deviation is a measure of the statistical distribution about the mean as derived from the formula,
σ
N
Σ
(Xn – X)2
n=1
N–1
MOTOROLA ANALOG IC DEVICE DATA
3
MOTOROLA [ MOTOROLA, INC ]
