Datasheet

ADP1650
Rev. C | Page 8 of 32
TYPICAL PERFORMANCE CHARACTERISTICS
I
L
= inductor current, I
LED
= LED current, LED_OUT = LED output, I
BAT
= battery current.
08837-025
CH1 5V CH2 1A Ω
CH4 500mA ΩCH3 1V
M100µs A CH1 400mV
3
4
2
1
T 402.2µs
LED_OUT
I
LED
I
L
STROBE
Figure 6. Startup Flash Mode, V
IN
= 3.6 V, I
LED
= 1500 mA
08837-026
CH1 5V CH2 100mA Ω
CH4 100mA ΩCH3 2V
M1.00ms A CH1 600mV
3
4
2
1
T 4.16ms
LED_OUT
I
LED
GPIO1 (Torch)
I
L
Figure 7. Startup Torch Mode, V
IN
= 3.6 V, I
LED
= 100 mA
08837-028
CH1 2V CH2 1A Ω
CH4 500mA ΩCH3 1V
M100µs A CH1 440mV
3
4
2
1
T 394.6µs
I
LED
I
L
V
IN
= 3.6V
STR
LED_OUT
Figure 8. 100 mA Torch to 1500 mA Flash Transition
08837-031
CH1 2V CH2 100mA Ω
CH4 25mA Ω
M100ns A CH1 1.6V
4
2
1
T 4.16007ms
I
LED
SW
I
L
Figure 9. Switching Waveforms, Flash Mode, I
LED
= 1500 mA
08837-032
CH1 5V CH2 100mA Ω
CH4 100mA ΩCH3 2V
M1ms A CH2 88mA
3
4
2
1
T 30.40%
VIN
LED_OUT
I
LED
I
L
Figure 10. Pass-Through to Boost Mode Transition, I
LED
= 100 mA
08837-035
CH1 2V
CH4 500mA ΩCH3 1V
M10µs A CH1 680mV
3
4
2
1
T 30.60%
CH2 1A Ω
LED_OUT
I
BAT
I
LED
GPIO1 (TxMASK1)
Figure 11. Entry into TxMASK1 Mode