ADP1653ACPZ-R71 datasheet(4/24 Pages) AD

Part #	ADP1653ACPZ-R71

Description	Compact, High Efficiency, High Power Flash/Torch LED Driver with Dual Interface

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ADP1653

Rev. A | Page 4 of 24

Conditions

Min

Typ

Max

Unit

Parameter

HPLED

Regulation Voltage6

Boost active, two high power LEDs (HPLEDs)

in series

0.23

0.32

0.42

V

Regulation Current

INTF = 1, Torch Mode

RSETT = 50 kΩ or SETT = VDD

110

125

145

mA

RSETT = 125 kΩ

35

50

60

mA

Flash Mode

RSETF = 50 kΩ

460

500

550

mA

RSETF = 500 kΩ

35

50

60

mA

INTF = 0, Flash Mode

HPLED register = 11111 (binary), SETF = VDD

460

500

550

mA

HPLED register = 11000 (binary), SETF = VDD

365

395

435

mA

Torch Mode

HPLED register = 00110 (binary), SETF = VDD

110

125

145

mA

HPLED register = 00001 (binary), SETF = VDD

38

50

60

mA

Step Size for HPLED LSB Change

SETF = VDD

15

mA

Maximum Flash Timeout

INTF = 0 or 1, 983,040 × oscillator cycles

820

ms

SETF RESPONSE (TRANSMIT MASKING FUNCTION)7

HPLED current = 335 mA to 140 mA

22

μs

HPLED current = 140 mA to 335 mA

24

μs

1 All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC). Typical values are at TA = 25°C, VDD = 3.6 V.

2 This is the VDD input voltage range over which the rest of the specifications are valid. The part operates as expected until VDD goes below the UVLO threshold.

3 This is the current into the VDD pin. Additional current can flow into the indicator LED or HPLED, depending on the mode selected.

4 INTF should be tied to GND (INTF = 0) for I2C interface or to VDD (INTF = 1) for hardwire interface. All other digital inputs are 1.8 V compatible.

5 This bias current is active only when the high power LED and/or indicator LED functions are enabled.

6 This specification is not valid during minimum on-time operation of the boost converter (one LED case) when excess voltage is dropped across the HPLED pin.

7 This specification is not production tested but is based on bench evaluation. It is based on the typical two-LED application circuit using a 100 kΩ resistor from SETF to GND,

and a 160 kΩ resistor to a 1.8 V Tx mask logic signal with <1 μs rise/fall time. HPLED register = 11001 (binary). The inductor current has settled to within ±5% of final value.

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