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I
(200mA/div-0.7 A Offset)
LED
Li-PolymerBatteryat3.7V,
I =1200mA,I =2000mA
LED LIM
BatteryVoltage
(20mV/div-3.7VOffset)
V
(100mV/div-5VOffset)
OUT
I
(500mA/div-0.5 A Offset)
L
t-Time=500ns/div
Frequency=121Hz
DutyCycle=6.25%
V =3.6V,I =75mA,
DCTIM[2:0]=110
IN TORCH
V
(200mV/div-3.5VOffset)
OUT
I
(20mA/div)
LED
t-Time=2ms/div
SAFETY TIMERLIMITATION
V =3.2V,I =2000mA,I =75mA (Torch)to700mA (Flash),
STIM[5:0]=10001(558ms)
I LIM LED
V
(500mV/div-3.35VOffset)
OUT
LEDPinHeadroomVoltage
(200mV/div)
I
(500mA/div)
LED
FLASH_SYNC
(2V/div)
t-Time=100ms/div
V =3.6V,I =2000mA,DIRbit=0,Tx-MASKbit=1,
TC[2:0]=111,FC[2:0]=111
I LIM
I
(500mA/div)
L
I
(500mA/div)
LED
GPIO (Tx-MASK)
(2 V/div)
FLASH_SYNC
(2V/div)
t-Time=200 s/divm
TPS61050
TPS61052
SLUS525 – MARCH 2007
INPUT RIPPLE VOLTAGE LOW-LIGHT DIMMING MODE OPERATION
Figure 22. Figure 23.
TORCH/FLASH SEQUENCE TX-MASKING OPERATION
Figure 24. Figure 25.
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