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LED171596ARSLR Datasheet(PDF) 7 Page - Texas Instruments |
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LED171596ARSLR Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 153 page  7 LED171596A www.ti.com SNVSAY2 – OCTOBER 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Electrical Characteristics (continued) Limits apply over the full ambient temperature range –40°C < TA < +85°C. Unless otherwise specified: VDD = 3.3 V, VDDIO = 3.3 VLED = 5 V, ILED_PK = 60 mA, CVLED = 10 µF, CVDD = 1 µF. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT (1) Output Current Accuracy is the difference between the actual value of the output current and programmed value of this current. (2) Matching is the maximum difference from the average. For the constant current outputs on the part (LED0 to LED23), the following are determined: the maximum output current (MAX), the minimum output current (MIN), and the average output current of all outputs (AVG). Two matching numbers are calculated: (MAX-AVG)/AVG and (AVG-MIN)/AVG. The largest number of the two (worst case) is considered the matching figure. (3) Saturation voltage is defined as the voltage when the LED current has dropped 10% from the value measured at 1 V. LED CURRENT SINK AND LED PWM ILEAKAGE Leakage current LED0 to LED23, VLED = 6.1 V 1 µA IMAX LED sink current (peak) LED0 to LED23, RISET = 12.5 kΩ 55.7 60 63.6 mA IACCURACY (1) Output current accuracy IOUT = 60 mA, PWM duty =100% –7% 7% IMATCH (2) Output current matching IOUT = 60 mA, PWM duty =100% –5% 5% VSAT (3) Saturation voltage IOUT = 60 mA 215 405 600 V IOUT = 20 mA 50 153 255 OUTPWMRES LED PWM resolution 9 bit tRISE LED output rise time IOUT = 60 mA 30 ns VLEDOPEN LED open detection threshold drv_headroom[1:0] = 00b 0.075 0.27 0.5 V drv_headroom[1:0] = 01b 0.36 VSAT+0.25 0.97 drv_headroom[1:0] = 10b 0.6 VSAT+0.5 1.22 drv_headroom[1:0] = 11b 0.85 VSAT+0.75 1.5 VLEDSHORT LED short detection threshold VLED = 5 V 3.7 4 4.14 V HIGH SIDE SWITCH VLED IQ VLED Leakage VDD = 0V, EN = L 1 µA Shutdown mode current VLED = 6.1 V, EN = L 6.8 14.8 28.7 µA Normal mode current VLED = 6.1 V, EN = H, ENABLES = 0x01, LED_DRIVER_CONTROL =0x0 140 182 225 µA LOGIC INPUT EN VIL Input low level 0.2 × VDDIO V VIH Input high level 0.8 × VDDIO V II Input current VPIN ≤ VDDIO 0.7 3.6 6.5 µA RPD Input resistor 0.6 1 4.7 MΩ LOGIC INPUT IFSEL_LATCH, SCLK_SCL, MOSI_SDA, MISO_ADDR, SS_PWM VIL Input low level 0.2 × VDDIO V VIH Input high level 0.8 × VDDIO V II Input current VPIN ≤ VDDIO −1 1 µA LOGIC INPUT PWM ƒPWM_IN PWM input frequency 0.1 20 kHz tON_OFF_MIN PWM input minimum on/off time 200 ns INPWMRES PWM input resolution 9 bits LOGIC OUTPUT INT VINTOL Output low level IOUT = 3 mA 0.3 0.5 V IINTLEAK Output leakage current 1 µA LOGIC OUTPUT MISO VSDOOL Output low level IOUT = 3 mA 0.3 0.5 V |
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