ISL8204M 查看數據表（PDF） - Renesas Electronics
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ISL8204M Datasheet PDF : 19 Pages
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ISL8204M, ISL8206M
Pin Descriptions (Continued)
PIN
SYMBOL
DESCRIPTION
13
COMP/EN This is the multiplexed pin of the ISL8204M, ISL8206M. During soft-start and normal converter operation, this pin
represents the output of the error amplifier. Use COMP/EN in combination with the FB pin to compensate for the voltage
control feedback loop of the converter. Pulling COMP/EN low (VENDIS = 0.4V nominal) will disable (shutdown) the controller,
which causes the oscillator to stop, and the high-side gate and low-side gate of the MOSFETs outputs to be held low. The
external pull-down device will initially need to overcome a maximum of 5mA of COMP/EN output current. However, once
the controller is disabled, the COMP/EN output will also be disabled, thus only a 20µA current source will continue to draw
current. Range: 0V to 5V.
14
FB
The FB pin is the output voltage adjustment of the ISL8204M, ISL8206M. It will regulate to 0.6V at the FB pin with
respect to the PGND pin. The ISL8204M, ISL8206M has an integrated voltage dividing resistor. This is a precision
9.76kΩ resistor (RFB-TI) between the VOUT and FB pins. Different output voltages can be programmed with
additional resistors between FB to PGND. Range: 0.6V.
FN6999 Rev 4.00
October 28, 2014
Page 4 of 19
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