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MAX16821B Datasheet(PDF) 5 Page - Maxim Integrated Products |
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MAX16821B Datasheet(HTML) 5 Page - Maxim Integrated Products |
5 / 24 page High-Power Synchronous HBLED Drivers with Rapid Current Pulsing _______________________________________________________________________________________ 5 Note 1: All devices are 100% production tested at +25°C. Limits over temperature are guaranteed by design. Note 2: Does not include an error due to finite error amplifier gain. See the Voltage-Error Amplifier section. ELECTRICAL CHARACTERISTICS (continued) (VCC = 5V, VDD = VCC, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS ENABLE INPUT (EN) EN Input-Voltage High EN rising 2.437 2.5 2.562 V EN Input Hysteresis 0.28 V EN Pullup Current IEN 13.5 15 16.5 µA THERMAL SHUTDOWN Thermal Shutdown 165 °C Thermal-Shutdown Hysteresis 20 °C Typical Operating Characteristics (VIN = 12V, VDD = VCC = 5V, TA = +25°C, unless otherwise noted.) SUPPLY CURRENT (IQ) vs. FREQUENCY FREQUENCY (kHz) 1300 900 1100 500 700 300 1 2 3 4 5 6 7 8 9 10 0 100 1500 VIN = 24V EXTERNAL CLOCK NO DRIVER LOAD VIN = 5V VIN = 12V SUPPLY CURRENT vs. TEMPERATURE TEMPERATURE ( °C) 60 35 10 -15 45 50 55 60 65 70 40 -40 85 VIN = 12V CDH/DL = 22nF VCC LOAD REGULATION vs. VIN VCC LOAD CURRENT (mA) 135 120 90 105 30 45 60 75 15 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 4.5 0150 VIN = 24V VIN = 7V VIN = 12V DRIVER RISE TIME vs. DRIVER LOAD CAPACITANCE LOAD CAPACITANCE (nF) 20 15 510 20 40 60 80 100 120 140 160 180 200 0 025 DH DL DRIVER FALL TIME vs. DRIVER LOAD CAPACITANCE LOAD CAPACITANCE (nF) 20 15 510 20 40 60 80 100 0 025 DH DL HIGH-SIDE DRIVER (DH) SINK AND SOURCE CURRENT MAX16821A toc06 2A/div 100ns/div CLOAD = 22nF VIN = 12V |
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