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AS3685A-ZDFT-2Y80 Datasheet(PDF) 5 Page - ams AG |
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AS3685A-ZDFT-2Y80 Datasheet(HTML) 5 Page - ams AG |
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5 / 25 page  AS3685A/AS3685B Datasheet www.austriamicrosystems.com/ AS3685 (ptr) Revision 2.2 4 - 24 Table 2 – Operating Conditions Symbol Parameter Min Typ Max Unit Note 0.85 mA 1:1 Mode 6.6 mA 1:1.5 Mode IOPERATING Power Consumption without load 8.1 mA 1:2 Mode 5.3 Electrical Characteristics Table 3 – Charge Pump Characteristics Symbol Parameter Min Typ Max Unit Note V(VCP) Output voltage without load – do not short to VSS VBAT * CP- mode V CP-mode is 1, 1.5 or 2 (automatically selected) VCPOUT Output limitation 5.4 5.6 internally limited 0.28 0.53 Ω 1:1 Mode VBAT = 3.6V, ICPOUT = 200mA 1.37 2.00 Ω 1:1.5 Mode VBAT = 3.3V, ICPOUT = 500mA, TJUNCTION<=85°C RCP Charge Pump effective Resistance 1.95 2.44 Ω 1:2 Mode VBAT = 3.0V, ICPOUT=700mA, TJUNCTION<=85°C Eta Efficiency 75 93 % Vin=3.0V-4.5V, Iout=100mA (Charge Pump alone) VRIPPLE Output ripple voltage 100 mVpp Vin=3.0-4.5V, Iout=350mA, fclk Operating Frequency -20% 1.0 +20% MHz tUP_DEB_LONG Initial Mode Switching Debounce Time 256 μs Mode switching up-debounce time after enabling of the charge pump or after mode switching between 1:1 to 1:1.5 tUP_DEB Mode Switching Debounce Time 16 μs Mode switching up-debounce time in normal operation Table 4 – Current Source (Sink) Characteristics Symbol Parameter Min Typ Max Unit Note ILED Output Current Range 700 1000 mA 700mA: RISET = 14.2kΩ 1000mA: RISET = 10kΩ IACCURACY Current Setting Accuracy -10% 500 +10% mA Measured with RISET = 19.9kΩ and maximum flash current VISET Current Generator Set Point Voltage (pin ISET) 1.3 V IISET Current Generator operating range 10.0 130 μA IISET = VISET / RISET if the resulting bias current is higher than 200 μA (typ.), the current source is disabled IFLASH2ISET Flash Current to Bias Current Ratio 7650 A/A AS3685A, EN1=1, EN2=1 or AS3685B at full flash current (700mA with RISET = 14.2kΩ) |
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