| Part Numbert | Mfg | Packt | D/C | Descriptiont | Qty | Company/Contact |
Si786DG Datasheet
Si786DG Price General Description The AAT1100 provides an integrated triple-channel pulse-width-modulation (PWM) solution for the power supply of DC-DC system; this device offers system engineer the flexibility to custom-make the power supply circuitry to a specific application. Each channel contains its own error amplifier, PWM comparator, dead-time control (DTC) and output driver. The under-voltage protection, oscillator, short circuit protection and voltage reference circuit are common features of the three channels. The AAT1100 contains two boost circuits (CHl, CH3) and a buck-boost circuit (CH2). DTC can be set to provide 0% t0 100% dead-time through a divider network. Soft-Start can be implemented by paralleling the DTC resistor with a capacitor. Two DTC inputs are assigned for CHl, CH3 pair and CH2 individually, and DTC inputs can be used to control on / off operation. In addition, this device can operate from 2.5V t0 7.OV supply voltages to achieve efficient operation in low power system. With a minimal number of external components, the AAT1100 0ffers a simple and cost effective solution. Si786DG on stock (6) When designing your equipment, comply with the guaranteed values, in particular those of maxi- mum rating, the range of operating power supply voltage, and heat radiation characteristics. Other- wise, we will not be liable for any defect which may arise later in your equipment. Even when the products are used within the guaranteed values, take into the consideration of incidence of break down and failure mode, possible to occur to semiconductor products. Measures on the systems such as redundant design, arresting the spread of fire or preventing glitch are recommended in order to prevent physical injury, fire, social damages, for example, by using the products. The output currents are limited by a current regulator. Current limitation takes place when the overcurrent limitation and shutdown threshold (IHSl-6, ILSl-6) are reached. Simultaneously, an internal timer is started. The shorted output is disabled when during a permanent short the delay time (tdSd) programmed by the short-circuit timer bit (SCT) is reached. Additionally, the short-circuit detection bit (SCD) is set. If the temperature prewarning bit TP in the output register is set during a short, the shorted output is dis- abled immediately and SCD bit is set. By writing a high to the SRR bit in the input register, the SCD bit is reset and the disabled outputs are enabled. |
