MIC2142 View Datasheet(PDF) - Micrel
Part Name
Description
Manufacturer
MIC2142 Datasheet PDF : 17 Pages
| |||
Micrel, Inc.
VIN
C2
10µF
L1
47µH
CR1
MBR0530
R2
36.5k
+5V @16mA
C3
270pF
U1 MIC2142
4 FB SW 3
GND 2
5 EN VCC 1
R1
12.4k
C1
22µF
GND
For additional pre-designed circuits, see Table 4.
GND
Figure 2. Bootstrap Configuration
L1
10µH
CR1
MBR0530
VIN
+15V @15mA
CR5
LWT673
CR7
LWT673
(from controller)
PWM
C2
10µF
GND
U1 MIC2142
4 FB SW 3
GND 2
5 EN VCC 1
C1
1µF
25V
Rprogram
82
CR6
LWT673
GND
Figure 3. Series White LED Driver with PWM Dimming Control
L1
10µH
CR1
MBR0530
VIN
+15V @15mA
CR5
LWT673
CR7
LWT673
U1 MIC2142
4 FB SW 3
C2
GND 2
C1
10µF
1µF
SHTDWN
5 EN VCC 1
25V
GND
CR6
LWT673
Rprogram
82
GND
DAC
R4
R3
Figure 4. Series White LED Driver with Analog Dimming Control
October 2007
9
MIC2142
M9999-102507
Share Link: 