Datasheet

t-Time=1ms/div
I
(500mA/div)
LED2
V =3.6V,V =4.95V,I =1750mA
IN OUT LIM
LED2ChannelOnly
DCLC2[2:0]=000
FC2[5:0]=100000
STRB0
(2V/div)
LED2PinHeadroomVoltage
(1V/div)
V
(1V/div-3.6VOffset)
OUT
0
10
20
30
40
50
60
70
80
90
100
LEDPowerEfficiency(PLED/PIN)-%
2.5 2.9 3.3 3.7 4.1 4.5 4.9 5.3
V -InputVoltage-V
I
ILED1= 50mA
ILED2=100mA
ILED3=
I =1750mA,
Tx-MASK=Low
LIM
ILED1= 0mA
ILED2=200mA
ILED3=10
ILED1= 5mA
ILED2=150mA
ILED3=7
ILED1= 50mA
ILED2=550mA
ILED3=2
ILED1= 50mA
ILED2=600mA
ILED3=3
ILED1= 50mA
ILED2=450mA
ILED3=2
t-Time=200µs/div
MODE_CTRL[1:0]=01
DCLightTurn-On
I
(50mA/div)
LED2
I
(200mA/div)
L
V =3.6V,V =4.95V
I =1750mA
IN OUT
LIM
LED2ChannelOnly
DCLC2[2:0]=100
V
(2V/div)
OUT
2.5 2.9 3.3 3.7 4.1 4.5 4.9 5.3
V -InputVoltage-V
I
0
10
20
30
40
50
60
70
80
90
100
LEDPowerEfficiency(PLED/PIN)-%
ILED2=75mA
ILED2=100mA
ILED2=150mA
ILED2=225mA
I =1750mA,
Tx-MASK=Low
LED2Channel
LIM
TEST RESULTS www.ti.com
4 TEST RESULTS
4.1 Flash mode
Figure 4. LED Power Efficiency Figure 5. Flash Sequence
vs
Input Voltage
4.2 Video Light mode
Figure 6. LED Power Efficiency vs Input Voltage Figure 7. Video Light Startup
6
TPS61310EVM-638 Evaluation Module User Guide SLVU419– April 2011
Submit Documentation Feedback
Copyright © 2011, Texas Instruments Incorporated