AMS1085 DATASHEET PDF

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Dropout voltage is specified over the full output current range of the device. In order to ensure the best possible thermal flow from this area of the package to the heat sink proper mounting is required. A diode from output to input is recommended, when a crowbar circuit at the input of the AMS is used.

The size of the required adjust pin capacitor is a function of the input ripple frequency.

AMS Datasheet PDF –

The ripple rejection will be a function of output voltage, in circuits without an adjust pin bypass capacitor. F tantalum or ? It is important to keep the positive lead between regulator and load as short as possible and use large wire or PC board traces. In order to ensure the best possible thermal flow from this area of the package to the heat sink proper mounting is required.

F tantalum or ? The guaranteed specifications apply only for the test conditions listed. The resistance of the wire connecting the regulator to the load will limit the load regulation. With the power of an actual modeling language, modelingchange. If R1 were connected to the load, the effective resistance between the regulator and the load would be: During the start-up, as the input voltage is rising, the input-to-output voltage dataeheet remains small, allowing the regulator to supply large output currents.

As with any IC regulator, none the protection circuitry datasheeg be functional and the internal transistors will break down if the maximum input to output voltage differential is exceeded. Line and Load regulation are guaranteed up to 15W power dissipation for M and T packages and 2.

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Datasheet «AMS1085»

F and the input pin is instantaneously shorted to ground, damage can occur. Ripple Rejection The ripple rejection values are measured with the adjustment pin bypassed. The dropout voltage of the device is guaranteed maximum 1. This is the lowest resistance path for the heat flow.

F Overload Recovery When the power is first turned on, as the input voltage rises, the output follows the input, permitting the regulator to start up into heavy loads.

The impedance of the adjust pin capacitor at the ripple frequency should be less than the value of R1 normally ? A thermally conductive spacer can be used, if the case of the device must be electrically isolated, but its added contribution to thermal resistance has to be considered.

Stability The circuit design used in the AMS series requires the use of an output capacitor as part of the device frequency compensation.

Placing a resistor between these two terminals causes a constant current to flow through R1 and down through R2 to set the overall output voltage. A problem can occur with a heavy output load when the input voltage is high and the output voltage is low, when the removal of an output short will not permit the output amx1085 to recover.

AMS1085 数据手册 ( 数据表 ) – Advanced Monolithic Systems Inc

Normal power supply cycling or even plugging and unplugging in the amx1085 will not generate current large enough to do any damage. Can flash at 2 Hz during fast forward. F aluminum covers all cases of bypassing the adjustment terminal. When the adjustment terminal is bypassed to improve the ripple rejection, the requirement for an output capacitor increases.

The addition of ? Minimum load current is defined as the minimum output current required to maintain regulation.

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Minimum load current is defined as the minimum output current required to maintain regulation. I would invite AMA to send me. This is the lowest resistance path for the heat flow. In this case, there are two stable output operating points for the regulator. In this case, there are two stable output operating points for the regulator. Without bypassing the adjustment terminal smaller capacitors can be used with equally good results. To ensure good transient response with heavy load current changes capacitor values on the order of ?

Disclaimer Devices sold by ams AG are covered by the warranty.

Junction-to-case thermal resistance is specified from the IC junction to the bottom of the case directly below the die. At 10kHz only 0.

AMSCD from Advanced Monolithic Systems Inc. (AMS)

A problem can occur with a heavy output load when the input voltage is high and the output voltage is low, when the removal of an output short will not permit the output voltage to recover.

Thermal compound at the case-to-heat sink interface is recommended. Calculations for both temperatures under certain conditions of ambient temperature and heat sink resistance and to ensure that both thermal limits are met. The ripple rejection will be a function of output voltage, in circuits without an adjust pin bypass capacitor. It is important to xatasheet the positive lead between regulator and load as short as possible and use large wire or PC board traces.

General Description This guide. Stability The circuit design used in the AMS series requires the use of an output capacitor ams10885 part of the device frequency compensation. FR ic transistor FR 8 pin Text: Three Terminal Adjustable or Fixed Voltages 1.