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AS1119 Datasheet(PDF) 6 Page - ams AG |
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AS1119 Datasheet(HTML) 6 Page - ams AG |
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6 / 31 page ![]() www.austriamicrosystems.com/LED-Driver-ICs/AS1119 Revision 1.04 5 - 30 AS1119 Datasheet - Electrical Character i s t ics 6 Electrical Characteristics VDD = 2.7V to 5.5V, TAMB = -40°C to +85°C, typ. values are at TAMB = +25ºC (unless otherwise specified). Table 3. Electrical Characteristics Symbol Parameter Conditions Min Typ Max Unit TAMB Operating Temperature Range -40 85 °C VDD Operating Supply Voltage 2.7 5.5 V IDDSD Software Shutdown Supply Current All digital inputs at VDD or GND, VDD = 5.5V, TAMB = +25ºC 7µA IDDFSD Full Shutdown Supply Current Pin RSTN = 0V, TAMB = +25ºC 0.1 1 µA IDD Operating Supply Current (all current sources turned off) CP disabled @ VDD = 5.5V 1.4 mA With CP in 2:3 mode @ VDD = 2.7V 3 With CP in 1:2 mode @ VDD = 2.7V 4 ISTART max. Peak Inrush Current 1.5 A max. DC Current 700 mA IDIGIT Digit Drive Sink Current (Drive capability of all sources of one digit 1,2 ) 1. Not all sources are allowed to be fully on at the same time. 2. guaranteed by design CP disabled 500 mA CP enabled VDD < 3.3V 160 VDD ≥ 3.3V 320 ISEG Segment Drive Source Current LED VOUT = 1.8V to VDD-400mV 28 30 32 mA ΔISEG Segment Drive Current Matching LED 3 3. 2% VDSSAT Saturation Voltage Current = 30mA, VDD = 5V 100 mV RDSON(N) Resistance for NMOS 0.5 1 Ω fOSC Oscillator Frequency 0.9 1 1.1 MHz fREFRESH Display Scan Rate 2 time 9x8 matrixes 0.39 0.43 0.48 kHz Table 4. Logic Inputs/Outputs Characteristics Symbol Parameter Conditions Min Typ Max Unit IIH, IIL Logic Input Current VIN = 0V or VDD -1 1 µA VIH Logic High Input Voltage 1.6 V VIL Logic Low Input Voltage 0.6 V ΔVI Hysteresis Voltage 0.1 V VOL(SDA) SDA Output Low Voltage ISINK = 3mA 0.4 V VOL(IRQ) IRQ Output Low Voltage ISINK = 3mA 0.4 V VOL(SYNC_O UT) Sync Clock Output Low Voltage ISINK = 1mA 0.4 V VOH(SYNC_O UT) Sync Clock Output High Voltage ISOURCE = 1mA VDD-0.4 V Open Detection Level Threshold VDD-0.4 VDD- 0.1 V Short Detection Level Threshold 0.9 1.2 V Capacitive Load for Each Bus Line SCL Frequency = 400kHz 400 pF SCL Frequency = 1000kHz 100 I SEG I max I min – I max I min + --------------------------- 100 × = |
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