U2350B Datasheet, PDF (7/9 Pages) TEMIC Semiconductors – PWM Speed Control for Permanent Excited DC Motors

Parameters
Oscillator frequency
Blink frequency
Switching frequency
Pulse ratio switch
U2350B-FP
Test Conditions / Pins Symbol Min.
Typ.
Max.
Unit
C₄ = C_osc = 220 nF,
f_osc
1.1
Hz
W ^{see figure 2}
Pin 7
R₁₁ = R_osc = 120 k
V_T100 < V₄ ≤ V_T80 Pin 1
f_blink
2.2
Hz
V₅ = V₁₆
Pin 14
f_s
1.1
Hz
interval operation
Pin 14 t_p/T
0.2
0.23
0.26
–
14
C₄=100nF
12
10
Oscillator Frequency
f_osc = f_blink/ 2 = t_s
8
6 ^220nF
4
330nF
470nF
2
0 ^680nF
0
40
95 10299
80
120
W R₁₁ ( k )
Figure 5.
160 200
100
Mains Supply
80
Rectified Voltage
V_M=230V–15%
60
40
20
0
02 4 6
8 10 12 14
95 10300
I_tot ( mA )
Figure 6.
10
Mains Supply
8
Rectified Voltage at C₆
6
4
2
0
0
95 10301
20
40
60
R₁ ( kW )
Figure 7.
80 100
TELEFUNKEN Semiconductors
7 (9)
Rev. A1, 29-May-96