Texas Instruments TPS61150A-150 Evaluation Board TPS61150AEVM-150 TPS61150AEVM-150 TPS61150AEVM-150 데이터 시트
제품 코드
TPS61150AEVM-150
www.ti.com
TYPICAL CHARACTERISTICS
Table of Graphs
0
100
200
300
400
500
600
10
20
30
40
50
60
70
80
90
Duty Cycle - %
CurrentLimit-mA
V = 4.2V
I
V = 3.6V
I
V = 3V
I
0
200
400
600
800
1000
1200
10
20
30
40
50
60
70
80
90
Duty Cycle - %
CurrentLimit-mA
V
I
= 4.2V
V = 3.6V
I
V = 3V
I
SLVS706 – OCTOBER 2006
FIGURES
Overcurrent Limit
VIN = 3.0V, 3.6V, and 4.2V, single and dual output
1,2
WLED efficiency
VIN = 3.3V, 3.6V and 4.2V, 3 WLED, WLED voltage = 11V
3
WLED efficiency
VIN = 3.3V, 3.6V and 4.2V, 4 WLED, WLED voltage = 15V
4
WLED efficiency
VIN = 3.3V, 3.6V and 4.2V, 5 WLED, WLED voltage = 19V
5
WLED efficiency
VIN = 3.3V, 3.6V and 4.2V, 6 WLED, WLED voltage = 23V
6
Both on efficiency
VIN = 3.3V, 3.6V and 4.2V, 4 WLED on each output
7
K value over current
VIN = 3.6V, I
WLED
= 1mA to 25mA
8
PWM dimming linearity
Frequency = 20kHz and 30kHz
9
Single output PWM dimming waveform
10
Multiplexed PWM dimming waveform
11
Start up waveform
12
OVERCURRENT LIMIT (SINGLE OUTPUT)
OVERCURRENT LIMIT (DUAL OUTPUT)
vs
vs
DUTY CYCLE
DUTY CYCLE
Figure 1.
Figure 2.
6