TDA1675A 查看數據表（PDF） - STMicroelectronics
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TDA1675A Datasheet PDF : 11 Pages
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TDA1675A
DC ELECTRICAL CHARACTERISTICS (VS = 35V, Tamb = 25oC, unless otherwise specified)
Symbol
I2
- I9
- I9
∆I 9
I9
I14
V1
V1L
V1H
V4
V7
∆V 7
∆VS
V11
V13
V15
Parameter
Pin 2 quiescent current
Ramp generator bias current
Ramp generator current
Ramp generator non linearity
Pin 14 quiescent current
Quiescent output voltage
Output saturation voltage to ground
Output saturation voltage to supply
Oscillator virtual ground
Regulated voltage at pin 7
Regulated voltage drift with supply
voltage
Amplifier input (+) reference voltage
Blanking output saturation voltage
Pin 15 saturation voltage to ground
Test conditions
I1 = 0
V9 = 0
V9 = 0 ; - I7 = 20µA
∆V9 = 0 to 15V, - I7 = 20µA
VS = 35V, Ra = 2.2kΩ, Rb = 1kΩ
VS = 15V, Ra = 390Ω, Rb = 1kΩ
I1 = 1.2A,
- I1 = 1.2A
- I7 = 20µA
∆VS = 15 to 35V
I13 = 10 mA
I15 = 20 mA
Min. Typ. Max. Unit Fig.
16 36 mA 1b
0.02 1 µA 1b
18.5 20 21.5 µA 1b
0.2 1 % 1b
25 45 mA 1b
16.4 17.8 19.5 V 1a
6.9 7.5 8.1 V
1 1.4 V 1c
1.6 2.2 V 1d
0.45
V 1b
6.3 6.6 7 V 1b
1
2
mV
V
1b
4.1 4.4 4.7 V 1b
0.35 0.5 V 1a
1 1.5 V 1a
Figure 1 : DC Test Circuit.
Figure 1a
VS
V13
I15
V15
I13
13
2 14 15
7
8V
1
Ra
4
1V
12
V1
9 5 11 8 10
Rb
-I 9
0.1µF
Figure 1b
VS
V11
I2+ I1
A
B
1V
V4
11
2
4
3
I 14
14
I1
1
75kΩ
5
10
V7
7
-I 7
12
9
8
-I 9
V9
Figure 1c
VS
2
14
+I 1
4
1
1V
V1L
12 11 5 10 8
8V
0.1µF
Figure 1d
VS
2
14
V1H
4
1
1V
-I1
12 11 5 10 8
8V
0.1µF
3/11
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