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AS8846

Features: `Programmable PWM DC Motor Driver / Controller with Interface (Three Wire Interface)` Programmable Functions and Parameters for Motor Current, Voltage and Speed Regulation` Single Voltage Supply in the range Vbat = 6.0 V to 18 V (Vbat,max = 30 V)1`Total Power Efficiency up to 96 %`Low R...

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SeekIC No. : 004288609 Detail

AS8846: Features: `Programmable PWM DC Motor Driver / Controller with Interface (Three Wire Interface)` Programmable Functions and Parameters for Motor Current, Voltage and Speed Regulation` Single Voltage...

AS8846 Data Sheet

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Part Number:
AS8846
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

` Programmable PWM DC Motor Driver / Controller with Interface (Three Wire Interface)
` Programmable Functions and Parameters for Motor Current, Voltage and Speed Regulation
` Single Voltage Supply in the range Vbat = 6.0 V to 18 V (Vbat,max = 30 V)1
`Total Power Efficiency up to 96 %
`Low RF Emission within the whole frequency range due an integrated special EMC optimized driver
` Dynamically self-adjusting slew rate regulated switching technology
` Fully protected by programmable failure handling procedures via P
` Fast Over Current and Over / Under Voltage Detection and Protection, Battery Voltage Monitoring
` External and On Chip Temperature Detection and Protection
` Motor Current and Speed Measurement with a shunt resistor and capability of trimming the chip for an extern shunt value
` Programmable Parameters:
* EMC compliant Driver Functions
* Over Current, Over / Under Voltage Threshold Values
* Motor Failure Threshold Levels
* Motor Current Measurement Range
* Trimming for the current measurement shunt
*PWM Frequency, Charge Pump Monitor
`Charge Pump to control high side drivers
`Integrated 5 V Power Supply for external components (P, etc.)
` Standby and Wake-up capability
` Sleep / Wake-up Mode system controlled by the P and the Wake-up Pin
` SOIC 28 Package


Application

·Fan cooler
·Air conditioning
·Fuel pumps
·Water and oil pumps
·General purpose DC Motor Regulators


Pinout

Connection Diagram


Specifications

Parameter SYMBOL MIN MAX Unit NOTE
Battery voltage Vbat -0.3 30 V (1)
Pumped voltage Vpump -0.3 44 V  
Low Power Supply Voltage VDD -0.3 7 V  
Input Pin Voltage (Low voltage pins) Vin -0.3 VDD+0.3 V  
Input Current (latchup immunity) Iscr -100 -100 mA 125
ESD   -0.9 0.9 kV Norm: MIL 883 E method 3015 (2)
Total Power dissipation Pvtot   500 mW Reflow and Wave
Junction temperature Tj   150  
Storage temperature Tstg -55 150    
Humidity   5 85 % Non condensing
Body temperature TBody   240   Norm: IPC/JEDEC J-STD 020 C



Description

The AS8446 is a complete and fully protected PWM DC motor driver/controller, which can be implemented by interfacing a low cost 8-bit P and a high-side N-channel power FET switch.

AS8846 is an advanced PWM DC motor controller subsystem with an excellent EMC behavior targeted especially for high current automotive applications. The optimization of the EMC behavior of the entire module only by software changes makes AS8846 easier to implement it in harsh environments.


The programmability of parameters of AS8846 and functions allows the adaptation of the AS8446 to a wide range of applications.So the system can act either as a motor current or motor speed or motor voltage regulator. Also AS8846 a full diagnosis of motor failures and power FET failures, over temperature and over/under voltage can be formed by programmable failure handling procedures using the motor characteristic and the real time measured motor current, motor speed and battery voltage.




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