L5993 STMicroelectronics, L5993 Datasheet - Page 7

• Manufacturer Part Number: L5993
• Description: Switching Converters, Regulators & Controllers Prog Current Mode
• Manufacturer: STMicroelectronics

Specifications of L5993

• Mounting Style: Through Hole
• Package / Case: PDIP-16
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Figure 15. Switching frequency vs. temperature.
fsw (KHz)
320
310
300
290
280
Figure 17. Maximum Duty Cycle vs Vpin3.
Figure 19. E/A frequency response.
G [dB]
150
100
3.5
2.5
1.5
50
DC Control Voltage Vpin3 [V]
0
0.01
3
2
1
-50
0
-25
10
0.1
20
0
1
30
V15 = Vref
25
Duty Cycle [%]
40
10
f (KHz)
Tj ( C)
50
Rt= 4.5Kohm, Ct = 1nF
Vcc = 15V, V15= 0
50
100
Rt = 4.5Kohm,
Ct = 1nF
60
75
1000
70
100
V15 = 0V
80
10000 100000
125
90 100
Phase
150
140
120
100
80
60
40
20
Figure 16. Dead time vs Ct.
1,500
1,200
Figure 18. Delay to output vs junction tem-
42
40
38
36
34
32
30
28
Dead time [ns]
900
600
300
-50
Delay to output (ns)
-25
Rt =4.5Kohm
perature.
2
0
Timing capacitor Ct [nF]
25
4
Tj ( C)
50
6
75
PIN10 = OPEN
1V pulse
on PIN13
100
8
V15 = Vref
125
V15 = 0V
L5993
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