U2352B Datasheet, PDF (6/8 Pages) TEMIC Semiconductors – PWM Power Control for DC Loads

U2352B
W R_D = 20 k
V_IN
5
S₂
95 9673
R₉
4
V_OUT
1000
800
600
400
200
0
0
95 9686
R₉=1MW
500KW
100KW
50KW
20KW
10KW
5KW
200 400 600 800 1000
V_IN ( mV )
Figure 4. Typical circuitry of the current switch S₂ with associated transfer characteristics (S₂ closed)
R₂
82
kW
R₅
33
kW
D₁, T₁ and R_sh are
load dependent
C_osc
1
8
680 pF
m^C1
4.7 F
47Rk⁶W
Speed
68
kW
2
7
R₃
10 kW
W ^{R7 R8}
27 k
C₂
470 nF
U2352B
3
6
Torque
C₄
R₁
D₁
D₂
D₃
R_G
V_B
M ^Load
T₁
R₄
1kW
4
5
R₉ ^{95 9674}
C₃
10 nF
1.5 kW
R_sh
GND
Figure 5. Speed control with load current monitoring (load current detection via shunt resistor)
6 (8)
TELEFUNKEN Semiconductors
Rev. A1, 29-May-96