Controlling power chain with same controller in either of two different applications

A controller for controlling a power chain in an electronic device can be used in either of two different applications. The first application requires the controller to produce drive signals for driving discrete power MOSFETs within the power chain. The second application requires the controller to produce an output PWM signal to control an integrated circuit having power MOSFETs integrated with MOSFET drivers within the power chain. The controller generally includes a sensor that detects which of the two applications the controller is in. The controller also generally includes outputs that produce, when the controller is in the first application, the drive signals for driving the discrete power MOSFETs. But when the controller is in the second application, one of the outputs is used to produce the output PWM signal for controlling the integrated circuit.