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AAT2805 Arkusz danych(PDF) 4 Page - Advanced Analog Technology, Inc. |
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AAT2805 Arkusz danych(HTML) 4 Page - Advanced Analog Technology, Inc. |
4 / 16 page Electrical Characteristics1 VIN = 3.6V; CIN = COUT = C1 = C2 = C3 = 1.0µF; TA = -40°C to +85°C, unless otherwise noted. Typical values are TA = 25°C. Symbol Description Conditions Min Typ Max Units Input Power Supply VIN Operation Range 2.7 5.5 V 1X Mode, 3.0 ≤ VIN ≤ 5.5, Active, No Load 0.3 1 Current; EN_FLSH = GND, EN/SET = VIN 1.5X Mode, 3.0 ≤ VIN ≤ 5.5, Active, No Load 1.0 3.0 Current; EN_FLSH = GND, EN/SET = VIN mA ICC Operating Current 2X Mode, 3.0 ≤ VIN ≤ 5.5, Active, No Load 1.0 3.0 Current; EN_FLSH = GND, EN/SET = VIN EN_FLSH = GND, 50µA Output Setting, 50 µA 1X Mode 3.0 ≤ VIN ≤ 5.5, No Load Current; 2.0 4.5 mA EN_FLSH = VIN, EN/SET = GND ISHDN Shutdown Current EN_FLSH = EN/SET = 0 1.0 µA IDX Input Current Accuracy2, 3 ISET = 30mA; TA = 25°C -10 10 % I(D-Match) Current Matching Between VD1:D4 = 3.6, VIN = 3.5V 0.5 % Any Two Current Sink Inputs2, 4 RSINK Sink Switch Impedance (each)2 7 Ω 3.0V < VIN < 5V, IOUT = 100mA; 4.32 4.5 4.68 VOUT_FL Flash Charge Pump Output EN_FLSH = VIN V Voltage5 3.0V < VIN < 5V, IOUT = 150mA; 4.3 4.5 4.7 EN_FLSH = VIN IOUT_FL Maximum Continuous IOUT5 VIN = 3.6V; VOUT = 4.5V; EN_FLSH = VIN 120 mA Maximum Pulsed IOUT5 VIN = 3.6V; VOUT = 4.5V; IPULSED < 500ms 250 TSS Soft-Start Time 100 µs FCLK Clock Frequency 1.0 MHz VEN(L) Enable Threshold Low 0.4 V VEN(H) Enable Threshold High 1.4 V TEN/SET LO EN/SET Low Time VEN/SET < 0.6V 0.3 75 µs TEN/SET_HI_MIN Minimum EN/SET High Time VEN/SET > 1.4V 50 ns TEN/SET_HI_MAX Maximum EN/SET High Time 75 µs TOFF EN/SET Off Timeout6 VEN/SET < 0.6V 500 µs TLAT EN/SET Latch Timeout7 VEN/SET > 1.4V 500 µs II Enable and EN/SET Input VEN/SET = VEN_FLSH = VIN -1.0 1.0 µA Leakage AAT2805 Dual High Efficiency Charge Pump for White LED and Flash Applications 4 2805.2006.04.1.7 1. The AAT2805 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correlation with statistical process controls. 2. Specification applies only to the tri-mode charge pump. 3. Determined by the average of all active channels. 4. Current matching is defined as the deviation of any sink current from the average of all active channels. 5. Specification applies only to the charge pump doubler. 6. The EN/SET pin must remain logic low (less than VEN(L)) for the duration of longer than 500µs to guarantee the off timeout. 7. The EN/SET pin must remain logic high (greater than VEN(H)) for the duration of longer than 500µs to guarantee the latch timeout. |
Podobny numer części - AAT2805 |
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Podobny opis - AAT2805 |
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