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AS1341-BTDT-1K Datasheet(PDF) 4 Page - ams AG |
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AS1341-BTDT-1K Datasheet(HTML) 4 Page - ams AG |
4 / 18 page www.ams.com/DC-DC_Step-Up/AS1341 Revision 1.09 4 - 18 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 VIN = +12V, SHDNN = VIN, Typical values are at TAMB = +25ºC (unless otherwise specified). Specifications based on circuit shown in Figure 1 on page 1. Note: All limits are guaranteed. The parameters with min and max values are guaranteed with production tests or SQC (Statistical Quality Control) methods. Table 3. Electrical Characteristics Symbol Parameter Conditions Min Typ Max Units TAMB Operating Temperature Range -45 85 °C 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 Ω VIN = 4.5V 0.5 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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