ADP1653_15 datasheet(11/24 Pages) AD

11 / 24 page

ADP1653

Rev. B | Page 11 of 24

CHANNEL 1 (IL) 0.5A/DIV

CHANNEL 2 (IHPLED) 0.2A/DIV

CHANNEL 3 (INT) 5V/DIV

CHANNEL 4 (STR) 5V/DIV

100ms/DIV

Figure 17. Flash Untimed Mode, Two LEDs, Timer = 300 ms,

IHPLED = 380 mA, VDD = 3.6 V

1.5

1.7

1.9

2.1

2.3

2.5

–40

110

LOW

MEDIUM

HIGH

TEMPERATURE (°C)

Figure 18. Typical Current Limit vs. Temperature;

Low, Medium, and High Current Limit Parts

0.20

–40

125

TEMPERATURE (°C)

0.18

0.16

0.14

0.12

0.10

0.08

0.06

0.04

0.02

110

VDD = 3.6V

VDD = 3V

VDD = 5.5V

Figure 19. Shutdown Current vs. Temperature, EN = 0 V

–50

125

TEMPERATURE (°C)

050

100

VDD = 3V

VDD = 3.6V

VDD = 5.5V

Figure 20. Quiescent Current vs. Temperature,

EN = VDD, LED Functions Disabled

1.6

VDD (V)

1.4

1.2

1.0

0.8

0.6

0.4

0.2

123

ILED ENABLED

IQ = 21.5μA

Figure 21. Quiescent Current vs. VDD, VDD Swept from 5.5 V to 0 V,

ILED Active at 2.5 mA Until UVLO Threshold

1.220

1.215

1.210

1.205

1.200

1.195

1.190

1.185

1.180

1.175

1.170

–40

–15

110

TEMPERATURE (°C)

3.6V

5.5V

Figure 22. Oscillator Frequency vs. Temperature vs. VDD

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