RT8482GS Richtek USA Inc, RT8482GS Datasheet - Page 2

• Manufacturer Part Number: RT8482GS
• Description: IC LED DVR BUCK/BOOST 2A 8SOP
• Manufacturer: Richtek USA Inc

Specifications of RT8482GS

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 1028-1005-2

RT8482
Pin Configurations
Typical Application Circuit
www.richtek.com
2
PWM
Dimming control
GBIAS
GATE
4.5V to 36V
Dimming
10k
ISW
R
Analog
ISN
4.5V to 36V
ISP
C
3.3nF
NC
NC
VC
VC
VC
V
IN
V
5V
IN
5V
10k
2
3
4
5
6
7
8
R
C
0.1µF
C
3.3nF
SOP-16
VC
SS
VC
Figure 2. PWM to Analog Dimming in Boost Configuration
10µF
16
15
14
13
12
11
10
C
9
10µF
C
0.1µF
C
IN
C
0.47µF
SS
IN
A
Figure 1. Analog Dimming in Boost Configuration
10
15
13
11
GND
VCC
OVP
EN
NC
SS
DCTL
ACTL
9
8
15
13
10
11
8
9
ACTL
DCTL
VC
SS
VCC
EN
DCTL
VC
SS
ACTL
VCC
EN
RT8482
47µH
GND
RT8482
GND
L1
47µH
16, 17 (Exposed Pad)
L1
16, 17 (Exposed Pad)
GBIAS 1
GATE
GBIAS 1
OVP
GATE
ISW
ISP
ISN
OVP
(TOP VIEW)
ISW
ISN
ISP
14
2
4
6
7
14
2
4
6
7
M1
C
1µF
M1
B
C
1µF
B
D1
0.05
R
D1
R
0.05
SW
SW
1µF
C
1µF
C
OUT
R2
OUT
R2
GBIAS
GATE
R1
ISW
R1
NC
R
R
SENSE
0.1
SENSE
WQFN-16L 3x3
1
2
3
4
0.1
V
16
5
OUT
V
OUT
15
GND
6
14
7
17
DS8482-00 August 2010
13
8
48V (Max.)
48V (Max.)
12
11
10
V
9
OUT
V
NC
SS
DCTL
ACTL
OUT