參數(shù)資料
型號(hào)： TPS61141DRCT
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 1.26 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO10
封裝： 3 X 3 MM, GREEN, PLASTIC, QFN-10
文件頁(yè)數(shù)： 22/25頁(yè)
文件大?。?/td> 776K
代理商： TPS61141DRCT
www.ti.com
TYPICAL CHARACTERISTICS
Table of Graphs
65
67
69
71
73
75
77
79
81
83
85
1 2 3 4 5 6 7 8 9 10 1112 13 14 15 16 1718 19 20
OLEDCurrent-mA
Vin=3.3V
Vin=3.6V
Vin=4V
Efficiency-%
Vout=15V,
SELV=High
SELI=Low
750
770
790
810
830
850
870
890
910
930
950
0
2
4
6
8
10 12 14 16 18 20 22 24
WLED-Current-mA
K-V
alue
V =3.6V,
WLEDVoltage=15V
I
SLVS624B – JANUARY 2006 – REVISED MARCH 2007
TITLE
CONDITIONS
FIGURES
K value over current
Vin = 3.6 V, Iload = 2 mA to 25 mA
Figure 1
OLED efficiency vs load current
Vin = 3.3 V, 3.6 V and 4 V, Vout = 15 V
Figure 2
WLED efficiency vs load current
Vin = 3.3 V, 3.6 and 4 V, 3 WLED, WLED voltage = 11 V
Figure 3
WLED efficiency vs load current
Vin = 3.3 V, 3.6 V and 4 V, 4 WLED, WLED voltage = 15 V
Figure 4
WLED efficiency vs load current
Vin = 3.3 V, 3.6 V and 4 V, 5 WLED, WLED voltage = 19 V
Figure 5
WLED efficiency vs load current
Vin = 3.3 V, 3.6 V and 4 V, 6 WLED, WLED voltage = 23 V
Figure 6
OLED load regulation
Vin = 3.6 V, Iout = 15 V, Iload = 2 mA to 20 mA
Figure 7
OLED line regulation
Vin = 3 V to 5 V, Iout = 15 V, Iload = 10 mA
Figure 8
OLED ripple voltage waveform
Vin = 3.6 V, Vout = 15 V, Iload = 20, 2mA
Figure 9, 10
WLED PWM dimming waveform
Figure 11
WLED PWM dimming linearity
Frequency = 20 kHz and 30 KHz
Figure 12
Transition between OLED+WLED and OLED only
4 WLED and Vout=15V
Figure 13
WLED start up waveform
Figure 14
OLED start up waveform
Figure 15
PWM Mode Overcurrent Limit
WLED Only
Figure 16
PWM Mode Overcurrent Limit
WLED + OLED
Figure 17
K VALUE
EFFICIENCY
vs
WLED CURRENT
OLED CURRENT
Figure 1.
Figure 2.
6
相關(guān)PDF資料
PDF描述
TPS61140DRCT 1.26 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO10
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