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DLPA3000DPFD Datasheet(PDF) 13 Page - Texas Instruments |
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DLPA3000DPFD Datasheet(HTML) 13 Page - Texas Instruments |
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13 / 75 page  DLPA3000 www.ti.com DLPS052 – OCTOBER 2015 Electrical Characteristics (continued) over operating free-air temperature range. VIN = 12 V, TA = 0 to +70°C, typical values are at TA = 25°C, configuration according to Typical Applications (VIN =12 V, IOUT = 6 A, LED, internal FETs) (unless otherwise noted). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT BUCK CONVERTERS - GENERAL PURPOSE BUCK CONVERTERS (5) OUTPUT VOLTAGE Output voltage (General VPWR_5,6,7_VOUT 8-bit programmable 1 5 V purpose buck1,2,3) DC output voltage accuracy IOUT= 0 mA –3.5% 3.5% MOSFET 25°C, VPWR5,6,7_Boost – VPWR5,6,7_SWITCH = 5.5 RON,H High side switch resistance 150 m Ω V RON,L Low side switch resistance(3) 25°C 85 m Ω LOAD CURRENT Allowed load current 2 A PWR6(4). Allowed load current PWR5, Buck converters should not be used at this A PWR7(4). time, they will become available in the future. IOCL Current limit(3)(4) LOUT= 3.3 μH 3.2 3.6 4.2 A ON-TIME TIMER CONTROL tON On time VIN = 12 V, VO = 5 V 120 ns tOFF(MIN) Minimum off time(3) TA = 25°C, VFB = 0 V 270 310 ns START-UP Soft start 1 2.5 4 ms PGOOD RatioOV Overvoltage protection 120% RatioPG Relative power good level Low to high 72% AUXILIARY LDOs VPWR3,4_VIN Input voltage range LDO1 (PWR4), LDO2 (PWR3) 3.3 12 20 V PGOOD Power good PWR3,4_VOUT PWR3,4_VOUT rising 80% PWR3,4_VOUT falling 60% Overvoltage protection OVP 7 V PWR3,4_VOUT DC output voltage accuracy IOUT= 0 mA –3% 3% PWR3,4_VOUT Regulator current limit(3) 300 340 400 mA tON Turn-on time to 80% of VOUT = PWR3 and PWR4, C= 1 µF 40 µs LDO2 (PWR3) VPWR3_VOUT Output voltage PWR3_VOUT 2.5 V Load current capability 200 mA DC load regulation VOUT= 2.5 V, IOUT= 5 to 200 mA –70 mV/A PWR3_VOUT DC line regulation VOUT= 2.5 V, IOUT= 5 mA, PWR3_VIN = 3.3 to 30 µV/V PWR3_VOUT 20 V LDO1 (PWR4) VPWR4_VOUT Output voltage PWR4_VOUT 3.3 V Load current capability 200 mA DC load regulation VOUT= 3.3 V, IOUT= 5 to 200 mA –70 mV/A PWR4_VOUT DC line regulation VOUT= 3.3V, IOUT= 5 mA, PWR4_VIN= 4 to 20 30 µV/V PWR4_VOUT V (5) General Purpose Buck2 (PWR6) currently supported, others will be available in the future. Copyright © 2015, Texas Instruments Incorporated Submit Documentation Feedback 13 |
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