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ADM8828 Fiches technique(PDF) 2 Page - Analog Devices |
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ADM8828 Fiches technique(HTML) 2 Page - Analog Devices |
2 / 6 page –2– REV. A ADM8828/ADM8829–SPECIFICATIONS (VIN = +5 V, C1, C2 = 1 F, 1 T A = TMIN to TMAX unless other- wise noted) Parameter Min Typ Max Units Test Conditions/Comments Input Voltage, IN 1.5 5.5 V RL = 10 kΩ Supply Current 600 1000 µA Unloaded Output Current 25 mA Output Resistance 18 28 Ω IL = 5 mA Output Ripple 25 mV p-p IL = 5 mA 130 mV p-p IL = 25 mA Charge-Pump Frequency 50 120 190 kHz 65 kHz VIN = +2.25 V Power Efficiency 90 % RL = 200 Ω 87 % RL = 1 kΩ Voltage Conversion Efficiency 99.5 99.96 % No Load 98 % RL = 1 kΩ 91 % RL = 200 Ω Shutdown Supply Current, ISHDN 0.02 2 µA SHDN = IN Shutdown Input Voltage, VSHDN 2.0 V SHDN High = Disabled 0.8 V SHDN Low = Enabled Shutdown Exit Time 175 µsI L = 5 mA NOTES 1C1 and C2 are low ESR (<0.2 Ω) electrolytic capacitors. High ESR will degrade performance. Specifications subject to change without notice. ABSOLUTE MAXIMUM RATINGS* (TA = +25°C unless otherwise noted) Input Voltage (IN to GND) . . . . . . . . . . . . . . . –0.3 V to +6 V OUT to GND . . . . . . . . . . . . . . . . . . . . . . . . –6.0 V to +0.3 V OUT, IN Output Current (Continuous) . . . . . . . . . . . . 50 mA Output Short Circuit Duration to GND . . . . . . . . . . . 10 secs Power Dissipation, RT-6 . . . . . . . . . . . . . . . . . . . . . . 570 mW (Derate 8.3 mW/ °C above +70°C) θ JA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . 120 °C/W Operating Temperature Range Industrial (A Version) . . . . . . . . . . . . . . . . – 40 °C to +85°C Storage Temperature Range . . . . . . . . . . . –65 °C to +150°C Lead Temperature Range (Soldering 10 sec) . . . . . . . . +300 °C Vapor Phase (70 sec) . . . . . . . . . . . . . . . . . . . . . . . . +215 °C Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . +220 °C ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >3500 V *This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ORDERING GUIDE Temperature Branding Package Model Range Information Option* ADM8828ART –40 °C to +85°C MM0 RT-6 ADM8829ART –40 °C to +85°C MN0 RT-6 *RT-6 = 6-lead SOT-23. PIN CONFIGURATIONS TOP VIEW (Not to Scale) OUT IN CAP– CAP+ SHDN GND ADM8828 1 2 3 6 5 4 TOP VIEW (Not to Scale) OUT IN CAP+ NC GND ADM8829 1 2 3 6 5 4 CAP– NC = NO CONNECT PIN FUNCTION DESCRIPTIONS Mnemonic Function CAP+ Positive Charge-Pump Capacitor Terminal. GND Power Supply Ground. CAP– Negative Charge-Pump Capacitor Terminal. OUT Output, Negative Voltage. SHDN Shutdown Control Input. This input, when high, is used to disable the charge pump thereby reducing the power consumption. IN Positive Power Supply Input. |
Numéro de pièce similaire - ADM8828_15 |
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Description similaire - ADM8828_15 |
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