L5993D Просмотр технического описания (PDF) - STMicroelectronics
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L5993D Datasheet PDF : 22 Pages
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L5993
Figure 9. Vref SVRR vs. switching frequency.
SVRR (dB)
120
Vcc=15V
Vp-p=1V
80
40
Figure 10. Output saturation.
Vsat = V [V]
10
16
14
Vcc = Vc = 15V
Tj = 25°C
12
10
8
0
1
10
100
1000
fsw (Hz)
Figure 11. Output saturation.
V s at = V10 [V ]
2 .5
10000
2
Vcc = Vc = 15V
Tj = 25°C
1 .5
6
0
0.2 0.4 0.6 0.8
1
1.2
Isource [A]
Figure 12. UVLO Saturation
Ipin10 [mA]
50
40
Vcc < Vccon
before turn-on
30
1
20
0 .5
10
0
0
0.2 0.4 0 .6 0 .8
1
1 .2
Isink [A ]
Figure 13. Timing resistor vs. switching fre-
quency.
fsw (KHz)
5000
2000
1000
Vcc = 15V, V15 =0V
Tj = 25°C
500
200
100
50
20
5 .6nF
2.2nF
100pF
220pF
470pF
1 nF
10
10
20
30
40
Rt (kohm)
6/22
0
0 200 400 600 800 1,000 1,200 1,400
Vpin10 [mV]
Figure 14. Switching frequency vs. tempera-
ture
fsw (KHz)
320
Rt= 4.5Kohm, Ct = 1nF
310
Vcc = 15V, V15=Vref
300
290
280
-50 -25 0 25 50 75 100 125 150
Tj (°C)
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