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ISL94203IRTZ-T7 Datasheet(PDF) 4 Page - Intersil Corporation |
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ISL94203IRTZ-T7 Datasheet(HTML) 4 Page - Intersil Corporation |
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4 / 64 page  ISL94203 4 FN7626.2 December 5, 2012 42 DFET Discharge FET Control. The ISL94203 controls the gate of a discharge FET through this pin. The power FET is an N-Channel device. The FET is turned on by the ISL94203 if all conditions are acceptable. The ISL94203 will turn off the FET in the event of an out of bounds condition. The FET can be turned off by an external microcontroller by writing to the CFET control bit. The CFET output is also turned off by the FETSOFF pin. The FET output cannot be turned on by an external microcontroller if there are any out of bounds conditions. 43 VDD IC Supply Pin. This pin provides the operating voltage for the IC circuitry. 44 PCFET Precharge FET Control. The ISL94203 controls the gate of a precharge FET through this pin. The power FET is an N-Channel device. The FET is turned on by the ISL94203 if all conditions are acceptable. The ISL94203 will turn off the FET in the event of an out of bounds condition. The FET can be turned off by an external microcontroller by writing to the PCFET control bit. The PCFET output is also turned off by the FETSOFF pin. The FET output cannot be turned on by an external microcontroller if there are any out of bounds conditions. Either the PCFET or the CFET turn on, but not both. 45 CFET Charge FET Control. The ISL94203 controls the gate of a charge FET through this pin. The power FET is an N-Channel device. The FET is turned on by the ISL94203 if all conditions are acceptable. The ISL94203 will turn off the FET in the event of an out of bounds condition. The FET can be turned off by an external microcontroller by writing to the CFET control bit. The CFET output is also turned off by the FETSOFF pin. The FET output cannot be turned on by an external microcontroller if there are any out of bounds conditions. Either the PCFET or the CFET turn on, but not both. 46, 47 CSI2, CSI1 Current Sense Inputs. These pins connect to the ISL94203 current sense circuit. There is an external resistance across which the circuit operates. The sense resistor is typically in the range of 0.2m Ω to 5mΩ. 48 VBATT Battery pack voltage input. This pin is used to monitor the voltage of the battery stack. The voltage is internally divided by 32 and connected to an ADC converter through a MUX. PAD GND Thermal Pad. This pad should connect to ground. Pin Descriptions (Continued) PIN NUMBER SYMBOL DESCRIPTION |
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