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TLC5948A Datasheet(PDF) 5 Page - Texas Instruments |
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TLC5948A Datasheet(HTML) 5 Page - Texas Instruments |
5 / 50 page D (%)= 100 ´ - 1 I OLC( ) n (I +I +...+I +I ) OLC(0) OLC(1) OLC(15) OLC(14) 16 D (%)= 100 ´ IdealOutputCurrent - (IdealOutputCurrent) (I +I +...I +I ) OLC(0) OLC(1) OLC(14) OLC(15) 16 I (mA)=42.3 ´ OLCn(IDEAL) 1.20 R IREF (I atV =3.0V) OLC( ) CC n (I atV =5.5V) (I atV =3.0V) OLC( ) OLC( ) CC n n CC - D (%/V)= ´ 5.5V 3.0V - 100 (I atV =0.8V) OLC( ) OUT n n (I atV =3V) (I atV =0.8V) - OLC OUTn ( ) OLC( ) OUT n n n D (%/V)= ´ ´ 3V 0.8V - 100 TLC5948A www.ti.com SBVS192 – MARCH 2012 ELECTRICAL CHARACTERISTICS (continued) At TA = –40°C to +85°C and VCC = 3 V to 5.5 V. Typical values at TA = +25°C and VCC = 3.3 V, unless otherwise noted. TLC5948A PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Constant-current error All OUTn = on, DCn and BC = 7Fh, VOUTn = VOUTfix = ΔIOLC0 (channel-to-channel, 0.8 V, RIREF = 1.1 kΩ, TA = +25°C ±0.6 ±2 % OUT0 to OUT15)(2) (IOUTn = 46.1 mA target) Constant-current error All OUTn = on, DCn and BC = 7Fh, VOUTn = VOUTfix = ΔIOLC1 (device-to-device, 0.8 V, RIREF = 1.1 kΩ, TA = +25°C ±1 ±4 % OUT0 to OUT15)(3) (IOUTn = 46.1 mA target) VCC = 3.0 V to 5.5 V, all OUTn = on, DCn and BC = Line regulation ΔIOLC2 7Fh, VOUTn = VOUTfix = 0.8 V, RIREF = 1.1 kΩ ±0.1 ±1 %/V (OUT0 to OUT15)(4) (IOUTn = 46.1 mA target) All OUTn = on, DCn and BC = 7Fh, VOUTn = 0.8 V to Load regulation ΔIOLC3 3.0 V, VOUTfix = 0.8 V, RIREF = 1.1 kΩ ±0.1 ±1 %/V (OUT0 to OUT15)(5) (IOUTn = 46.1 mA target) TTEF Thermal error flag threshold Junction temperature(6) 150 165 180 °C THYS Thermal error flag hysteresis Junction temperature(6) 5 10 20 °C TPTW Pre-thermal warning threshold Junction temperature(6) 125 138 150 °C (2) The deviation of each output from the OUT0 to OUT15 constant-current average. Deviation is calculated by the formula: where n = 0 to 15. (3) Deviation of the OUT0 to OUT15 constant-current average from the ideal constant-current value. Deviation is calculated by the formula: Ideal current is calculated by the formula: (4) Line regulation is calculated by the formula: where n = 0 to 15. (5) Load regulation is calculated by the equation: where n = 0 to 15. (6) Not tested; specified by design. Copyright © 2012, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): TLC5948A |
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