RT8450BGCP Richtek USA Inc, RT8450BGCP Datasheet - Page 7

• 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

Typical Operating Characteristics
DS8450/B-02 November 2009
200
198
196
194
192
190
188
186
184
182
180
100
4.5
3.5
2.5
1.5
0.5
90
80
70
60
50
40
30
20
10
5
4
3
2
1
0
0
4
4
6
(ISP – ISN) Voltage vs. Input Voltage
8
Supply Current vs. Input Voltage
8
Efficiency vs. Input Voltage
8
12
12
10
16
16
Input Voltage (V)
Input Voltage (V)
Input Voltage (V)
Boost, V
12
20
20
OUT
V
24
24
14
IN
V
IN
= 24V, V
= 21V, I
= 24V, V
28
28
16
LED
32
32
ACTL
ACTL
= 350mA
18
= 1.5V
36
36
= 0V
40
40
20
200
180
160
140
120
100
100
100
80
60
40
20
95
90
85
80
75
70
65
60
90
80
70
60
50
40
30
20
10
0
0
(ISP – ISN) Voltage vs ACTL Input Voltage
0.2
22
6
24
Efficiency vs. Input Voltage
8
Efficiency vs. Input Voltage
26
Buck~Boost, V
0.5
ACTL Input Voltage (V)
28
10
Input Voltage (V)
Input Voltage (V)
Buck, V
30
0.8
OUT
12
RT8450/B
OUT
32
= 10.5V, I
= 21V, I
www.richtek.com
14
34
1.1
LED
LED
36
V
= 350mA
= 350mA
IN
16
= 24V
38
1.4
7
40
18