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ADP1653ACPZ-R71 Datasheet(PDF) 4 Page - Analog Devices |
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ADP1653ACPZ-R71 Datasheet(HTML) 4 Page - Analog Devices |
4 / 24 page 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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