specifications applicable at the time of sale inaccordance with TIs standard warranty. Testing and other quality control techniques are used to the extent TIdeems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed.TI assumes no liability for applications assistance or customer product design. Customers are responsible fortheir products and applications using TI components. To minimize the risks associated with customer productsand applications, customers should provide adequate design and operating safeguards.TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right,copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or processin which TI products or services are used. Information published by TI regarding third-party products or servicesdoes not constitute a license from datasheet, SLUS419.The resistor R29 from VREF to PKLIMIT is split in two R29A and R29B. These two resistors addto the previous value with the resistor connected to VREF equal to 1/3 of the previous value andthe resistor connected to PKLIMIT equal to 2/3 of the previous value. The emitter of an addedPNP signal transistor (Q100) is connected to the junction of these two resistors. The collector ofthe transistor is connected to ground. The base of the transistor is connected to the junction ofan added resistor (R100) and added capacitor (C100). The other side of the added capacitor isconnected to ground and the other side of the resistor is connected to VREF. This ratio of R12ato R12b makes certain the transistor is off once the capacitor is fully charged.When the controller is first powered the voltage across the added capacitor C100 is zero and itholds the transistor on, holding the voltage at the junction of R29A and R29B at close to ground.This reduces the peak current limit that the Application NoteSLUA321 July 20041Startup Curr