TL494_12 Datasheet, PDF (4/7 Pages) Unisonic Technologies – VOLTAGE MODE PWM CONTROL CIRCUIT

TL494
LINEAR INTEGRATED CIRCUIT
„ ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
AMPLIFIER SECTION
Input Offset Voltage
Error V_I(OFF) V_OUT (pin 3)=2.5V
2 10 mV
Input Offset Current
Input Bias Current
I_I(OFF) V_OUT (pin 3)=2.5V
I_I(BIAS) V_OUT (pin 3)=2.5V
25 250 nA
0.2 1 μA
Common-Mode Input Voltage Range Error
Open-Loop Voltage Amplification
V_CC=7V ~ 40 V
-0.3 ~
V
V_CC-2
ΔV_OUT=3V, V_OUT=0.5V ~ 3.5V
70 95
dB
Unity-Gain Bandwidth
Common-Mode Rejection Ratio
GB_W
Error CMRR V_CC=40V,T_A=25°C
800
kHz
65 80
dB
Output Sink Current(pin 3)
I_O(SINK)
V_ID=-15mV ~ -5V
V(pin 3)=0.5V
0.3 0.7
mA
Output source Current(pin 3)
I_O(SOURCE) V_ID=15mV ~ -5V, V(pin 3)=3.5V -2
mA
OUTPUT SECTION
Collector off-state current
Emitter off-state Current
I_C(OFF) V_CE=40V, V_CC=40V
I_E(OFF) V_CC=V_C=40V, V_E=0
2 100 μA
-100 μA
Collector -emitter
Saturation Voltage
Common-emitter
Emitter-Follower
V_E=0, I_C=200mA
V_C=15V, I_E=-200mA
1.1 1.3 V
1.5 2.5
Output Control Input Current
DEAD TIME CONTROL SECTION
V_IN=V_REF
3.5 mA
Input bias (pin 4)
I_I(BIAS) V_IN=0 ~ 5.25V
-2 -10 μA
Maximum duty cycle, each output
V_IN(pin 40)=0
45
%
Input threshold Voltage(pin 4)
V_THR Zero duty Cycle
3 3.3 V
Maximum duty cycle
0
PWM COMPARATOR SECTION
Input Threshold Voltage(pin 3)
V_THR Zero Duty cycle
4 4.5 V
Input Sink Current (pin 3)
I_I(SINK) V(pin 3)= 0.7V
0.3 0.7
mA
TOTAL DEVICE
Standby Supply Current
V_CC =15V
V_CC =40V
I_ST-BY
pin 6 at V_REF, all other Inputs and
outputs open
6 10 mA
9 15
Average supply current
V(pin 4)=2V
7.5
mA
SWITCHING CHARACTERISTICS, TA=25°C
Output Voltage Rise Time
Output Voltage Fall Time
t_{R Common-emitter configuration}
t_F
100 200 ns
25 100 ns
Output Voltage Rise Time
Output Voltage Fall Time
t_{R Emitter-follower configuration}
t_F
Notes: 1. All typical Values except for temperature coefficient are at Ta=25°C.
100 200 ns
40 100 ns
2. For conditions shown as MIN or MAX, use appropriate value under recommended operating conditions.
3. Duration of the short-circuit should not exceed one second.
4. Standard deviation is a measure of the statistical distribution the mean as derived from the formula:
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 7
QW-R103-004,G