TL494_15 Datasheet, PDF (6/33 Pages) Unisonic Technologies – VOLTAGE MODE PWM CONTROL CIRCUIT

TL494
SLVS074G – JANUARY 1983 – REVISED JANUARY 2015
7.8 Electrical Characteristics, Output Section
PARAMETER
TEST CONDITIONS
Collector off-state current
Emitter off-state current
Collector-emitter saturation voltage
Output control input current
Common emitter
Emitter follower
V_CE = 40 V, V_CC = 40 V
V_CC = V_C = 40 V, V_E = 0
V_E = 0, I_C = 200 mA
V_{O(C1 or C2)} = 15 V, I_E = –200 mA
V_I = V_ref
(1) All typical values, except for temperature coefficient, are at T_A = 25°C.
7.9 Electrical Characteristics, Dead-Time Control Section
See Figure 5
PARAMETER
TEST CONDITIONS
Input bias current (DEAD-TIME CTRL)
Maximum duty cycle, each output
Input threshold voltage (DEAD-TIME CTRL)
V_I = 0 to 5.25 V
V_I (DEAD-TIME CTRL) = 0, C_T = 0.01 μF,
R_T = 12 kΩ
Zero duty cycle
Maximum duty cycle
(1) All typical values, except for temperature coefficient, are at T_A = 25°C.
7.10 Electrical Characteristics, PWM Comparator Section
See Figure 5
PARAMETER
TEST CONDITIONS
Input threshold voltage (FEEDBACK)
Zero duty cyle
Input sink current (FEEDBACK)
V (FEEDBACK) = 0.7 V
(1) All typical values, except for temperature coefficient, are at T_A = 25°C.
7.11 Electrical Characteristics, Total Device
PARAMETER
Standby supply current
Average supply current
TEST CONDITIONS
R_T = V_ref,
All other inputs and outputs open
V_CC = 15 V
V_CC = 40 V
V_I (DEAD-TIME CTRL) = 2 V, See Figure 5
(1) All typical values, except for temperature coefficient, are at T_A = 25°C.
7.12 Switching Characteristics
T_A = 25°C
PARAMETER
Rise time
Fall time
Rise time
Fall time
TEST CONDITIONS
Common-emitter configuration, See Figure 7
Emitter-follower configuration, See Figure 8
(1) All typical values, except for temperature coefficient, are at T_A = 25°C.
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MIN
TYP ⁽¹⁾
2
1.1
1.5
MAX
100
–100
1.3
2.5
3.5
UNIT
μA
μA
V
mA
MIN TYP⁽¹⁾
–2
MAX
–10
45%
3 3.3
0
UNIT
μA
—
V
MIN TYP⁽¹⁾
4
0.3 0.7
MAX
4.5
UNIT
V
mA
MIN TYP⁽¹⁾
6
9
7.5
MAX
10
15
UNIT
mA
mA
MIN TYP⁽¹⁾
100
25
100
40
MAX
200
100
200
100
UNIT
ns
ns
ns
ns
6
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