RT9052GE データシートの表示（PDF） - Richtek Technology
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RT9052GE Datasheet PDF : 9 Pages
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RT9052
0.820
0.815
0.810
0.805
0.800
0.795
0.790
0.785
0.780
0.775
0.770
0.765
0.760
-50
ISET Voltage vs. Temperature
VCC = 12V
-25
0
25 50 75 100 125
Temperature (°C)
DRI Source Current vs. Temperature
70
60
50
40
30
20
10
0
-50 -25
VCC = 12V, VISET 0.6V, VDRI = 6V
0
25 50 75
Temperature (°C)
100 125
DIM PWM Dimming
VDIM
(5V/Div)
VISET
(500mV/Div)
VLED
(2V/Div)
ILED
(100mA/Div)
VCC = 12V, RISET = 5.1Ω, VLED = 3V
Time (1ms/Div)
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6
DRI Source Current vs. DRI Voltage
55
53
51
49
47
45
43
41
39
37
VCC = 12V, VISET 0.6V, VDIM = 3V
35
0
1
2
3
4
5
6
7
DRI Voltage (V)
DRI Sink Current vs. DRI Voltage
25
20
15
10
5
VCC = 12V, VISET = 1V, VDIM = 3V
0
0
1
2
3
4
5
6
7
DRI Voltage (V)
LED Current vs. PWM Duty
180
8LEDs
160
140
120
100
80
60
40
20
0
0
VCC = 12V, RISET = 5.1Ω,
VDIM = 0 to 5V/250Hz
10 20 30 40 50 60 70 80 90 100
PWM Duty (%)
DS9052-01 April 2011
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