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AS1341-BTDT Datasheet(PDF) 4 Page - ams AG |
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AS1341-BTDT Datasheet(HTML) 4 Page - ams AG |
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4 / 17 page  www.austriamicrosystems.com Revision 1.05 4 - 17 AS1341 Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s 6 Electrical Characteristics DC Electrical Characteristics VIN = +12V, SHDNN = VIN, TAMB = -40 to +85ºC. Typical values are at TAMB = +25ºC (unless otherwise specified). Specifications based on circuit shown in Figure 1 on page 1. Table 3. Electrical Characteristics Symbol Parameter Conditions Min Typ Max Units VIN Input Voltage Range 4.5 20 V VOUT Output Voltage (Preset Output) FB = GND 4.85 5.00 5.15 V Output Voltage (Adjustable) 1.25 VIN VDROPOUT Dropout Voltage IOUT = 600mA, ILIMIT = VIN 250 mV Line Regulation VIN = 6V to 20V, 200 Ω load 0.1 %/V Load Regulation ILIMIT = VIN, IOUT = 0 to 500mA 1 % VFB Feedback Set Voltage (Adjustable Output) 1.212 1.25 1.288 V IIN Input Supply Current No load 12 18 µA IINDROP Input Supply Current in Dropout No load 45 60 µA Input Shutdown Current SHDNN = GND 0.8 3 µA VUVLO Input Undervoltage Lockout Threshold VIN rising 3.6 4.0 4.4 V VIN falling 3.5 3.9 4.3 OUT Bias Current VOUT = 5.5V 2 3.5 5 µA IFB FB Bias Current VFB = 1.3V -25 +25 nA FB Threshold Low 50 100 150 mV Thermal Shutdown 10ºC hysteresis 145 ºC DC-DC Switches tOFFMIN LX Switch Minimum Off-Time 0.2 0.4 0.6 µs tONMAX LX Switch Maximum On-Time VFB = 1.3V 8 10 12 µs RLX LX Switch On-Resistance VIN = 6V 0.4 0.8 Ω VIN = 4.5V 0.5 0.95 ILXPEAK LX Current Limit ILIMIT = GND, L = 39µH 500 700 900 mA ILIMIT = IN, L = 10µH 1000 1400 1800 LX Zero-Crossing Threshold -75 +75 mV Zero-Crossing Timeout LX does not rise above the threshold 30 µs LX Switch Leakage Current VIN = 20V, LX = GND, TAMB = +25ºC 0.1 µA VIN = 20V, LX = GND 1 Control Inputs Digital Input Level SHDNN, ILIMIT = GND 0.8 V SHDNN, ILIMIT = IN 2.4 Digital Input Leakage Current VSHDNN, VILIMIT = 0 to 20V, VIN = 20V -100 +100 nA Power-OK Power-OK Threshold Falling edge, relative to VOUT 90 92.5 95 % POK Output Voltage Low IPOK = 1mA 0.4 V POK Output Leakage Current VIN, VPOK = 16V, TAMB = 25°C 0.1 µA VIN, VPOK = 16V 1 |
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