adm1051a Analog Devices, Inc., adm1051a Datasheet
adm1051a
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adm1051a Summary of contents
Page 1
... Mode protection circuitry for the external power device. The shutdown input on the 1.5 V channel can also be used with the TYPEDET signal motherboard to select the output voltage. The ADM1051/ADM1051A operate from supply, which gives sufficient headroom for the amplifiers to drive external N-channel MOSFETs, operating as source-followers, as the external series pass devices ...
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... ADM1051/ADM1051A–SPECIFICATIONS Parameter OUTPUT VOLTAGE Channel 1 Channel 2 OUTPUT VOLTAGE ACCURACY Load Regulation Line Regulation 5 VSB Supply Voltage Required for Channel 2 Regulation CONTROL AMPLIFIER Control Amplifier Open-Loop Gain Control Amplifier Slew Rate Closed-Loop Settling Time Turn-On Time 1 Sense Input Impedance Force Output Voltage Swing, V ...
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... ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the ADM1051/ADM1051A features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality ...
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... ADM1051/ADM1051A–Typical Performance Characteristics Tek S : Single Seq 50.0MS/ TOP 500mV Ch2 500mV M 1.00 s Ch1 Ch4 500mV 1.514 25 C 1.512 1.510 1.508 1.506 85 C 1.504 1.502 1.500 3.0 3.1 3.2 3.3 V – 1.8205 1.8200 1.8195 25 C 1.8190 1.8185 1.8180 1.8175 85 C 1.8170 1.8165 1 ...
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... M 1.00 s Ch2 B W Tek Single Seq 50.0ms/ S Ch2 20.0mV M 1.00 s Ch2 B W Tek Single Seq 50.0ms/ 85 Tek Single Seq 50.0ms/ –13.6 mV Tek 10.0kS/ 14.8 mV Ch1 10.0 V ADM1051/ADM1051A S Ch2 20.0mV 1.00 s Ch2 –16 Ch2 20.0mV M 1.00 s Ch2 10 Acqs S M 5.00ms Ch1 1.0 V ...
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... Power-On CC Reset threshold (6 V–9 V). POR does not apply to Channel 2 of the ADM1051A. This output will begin to rise as soon as there is sufficient gate drive to turn on the external MOSFET. The outputs from the ADM1051/ADM1051A are used to drive external N-channel MOSFETs, operating as source-followers. ...
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... OUTPUT VOLTAGE REG DEVICE ENTERS HICCUP MODE HICCUP MODE HOLD-OFF TIME FAULT CURRENT 2 AMPS OFF ON 1:40 DUTY CYCLE ADM1051/ADM1051A PC 5V SUPPLY 3k SHDN1 3k SHDN1 PC 5V SUPPLY 3k SHDN1 ADM1051/ ADM1051A 3k TYPEDET PC 5V SUPPLY 3k SHDN1 ADM1051/ ADM1051A 3k TYPEDET EN Regulator Mode 0 Shutdown 1 1 3.3 V FAULT REMOVED ...
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... Hiccup Mode Fault Protection is a simple method of protecting the external power device without the added cost of external sense resistors or a current sense pin on the ADM1051/ADM1051A. In the event of a short-circuit condition at the output, the output voltage will fall. When the output voltage of a channel falls ...
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... Some I/O control hub chipsets have power-supply sequencing requirements, which dictate that the 1.818 V supply must never be more than 2 V below the 3.3 V supply. This requirement can be met using the ADM1051A, as shown in Figure 7. In this circuit from the 12 V rail via Schottky diodes. 5 VSB is always present ...
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... ADM1051/ADM1051A 0.0098 (0.25) 0.0040 (0.10) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 8-Lead Small Outline Package (Narrow Body) (R-8) 0.1968 (5.00) 0.1890 (4.80 0.2440 (6.20) 0.1574 (4.00) 0.1497 (3.80) 0.2284 (5.80 PIN 1 0.0500 (1.27) BSC 0.102 (2.59) 0.094 (2.39) 8 0.0192 (0.49) 0 0.0098 (0.25) SEATING 0.0138 (0.35) PLANE 0.0075 (0.19) 0.0196 (0.50) 45 0.0099 (0.25) 0.0500 (1.27) 0.0160 (0.41) ...