Datasheet
Table Of Contents
- Figure 1. Typical application circuit
- 1 Pin settings
- 2 Maximum ratings
- 3 Electrical characteristics
- 4 Functional description
- 5 Application notes - buck conversion
- 5.1 Closing the loop
- 5.2 GCO(s) control to output transfer function
- 5.3 Error amplifier compensation network
- 5.4 LED small signal model
- 5.5 Total loop gain
- 5.6 Compensation network design
- 5.7 Example of system design
- 5.8 Dimming operation
- 5.9 Component selection
- 5.10 Layout considerations
- 5.11 Thermal considerations
- 5.12 Short-circuit protection
- 5.13 Application circuit
- 6 Application notes - alternative topologies
- 7 Package mechanical data
- 8 Ordering information
- 9 Revision history
LED5000 Application notes - buck conversion
Doc ID 023951 Rev 1 19/51
Equation 21
The gain and phase margin bode diagrams are plotted, respectively, in
Figure 10
and
Figure 11
.
Figure 10. Module plot
Figure 11. Phase plot
R
C
47 kΩ= C
C
680 pF= C
C
12 pF=
AM13494v1
0.1 1 10 100 1
.
10
3
1
.
10
4
1
.
10
5
1
.
10
6
30
17
4
9
22
35
48
61
74
87
100
External loop module
Frequency [Hz]
Module [dB]
0.1 1 10 100 1
.
10
3
1
.
10
4
1
.
10
5
1
.
10
6
0
22.5
45
67.5
90
112.5
135
157.5
180
External loop gain phase
AM13495v1