RT8450BGCP Richtek USA Inc, RT8450BGCP Datasheet - Page 9

• Manufacturer Part Number: RT8450BGCP
• Description: IC LED DRIVER PWM 16TSSOP
• Manufacturer: Richtek USA Inc

Specifications of RT8450BGCP

• Internal Driver: Yes
• Type - Primary: Backlight
• Mounting Type: Surface Mount
• Topology: PWM, Step-Down (Buck), Step-Up (Boost)
• Number Of Outputs: 1
• Frequency: 400kHz ~ 600kHz
• Voltage - Supply: 4.5 V ~ 40 V
• Package / Case: 16-TSSOP (0.173", 4.40mm Width) Exposed pad
• Operating Temperature: -40°C ~ 85°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Other names: 1028-1003-2

(100mA/Div)
(100mA/Div)
DS8450/B-02 November 2009
(20V/Div)
(10V/Div)
(10V/Div)
(10V/Div)
V
I
I
(5V/Div)
OUT
OUT_ac
OUT
V
V
V
V
OUT
IN
IN
EN
900
800
700
600
500
400
4
Switching Frequency vs. Input Voltage
10
Line Transient Response
Power On from EN
16
Time (250
Time 1ms/Div)
Input Voltage (V)
C
22
SS
μ
= 0.1μF, 10 LEDs Boost
s/Div)
28
V
10 LEDs Boost
R
IN
ISET
= 12V to 15V
= 0.68Ω
V
RT8450B
34
IN
RT8450
= 14V
40
(100mA/Div)
(100mA/Div)
(20V/Div)
(10V/Div)
(20V/Div)
(10V/Div)
V
I
I
(5V/Div)
OUT
OUT
OUT_ac
V
V
V
V
OUT
IN
IN
EN
10
9
8
7
6
5
4
3
2
1
0
-50
SS pin Current vs. Temperature
-25
Line Transient Response
Power On from EN
0
Time (250
Temperature (°C)
Time 1ms/Div)
25
C
SS
RT8450/B
μ
= 0.1μF, 12 LEDs Boost
50
s/Div)
V
IN
= 12V, C
www.richtek.com
V
12 LEDs Boost
R
IN
ISET
75
= 20V to 24V
= 0.68Ω
SS
V
100
IN
= 0.1μF
= 24V
125
9