Evaluates: MAX14746/MAX14747 MAX14746 Evaluation Kit General Description Detailed Description of Hardware The MAX14746 evaluation kit (EV kit) is a fully assem- Jumper Descriptions bled and tested circuit for evaluating the MAX14746/ Table 1 details the functions of the configurable jumper MAX14747 charger detectors with a linear battery charger headers on the EV kit board. The headers are standard and a smart power selector. 0.1in spacing, 0.025in posts. Refer to the MAX14746 IC data sheet for detailed information regarding the operation and features of the devices. Table 1. Jumper Functions and Default The EV kit comes standard with the MAX14746 installed, but can also be used to evaluate the MAX14747 by replacing Settings the MAX14746 (U1) with the MAX14747. Request a free sample of the MAX14747 when ordering the EV kit. JUMPER SETTINGS DESCRIPTION Open Indicator LED D1 off JU1 Features D1 Closed* Indicator LED D1 on RoHS Compliant Disconnect CTYP output from Open Proven PCB Layout indicator LED D2 JU2 Full Assembled and Tested CTYP Connect CTYP output to Closed* 2 indicator LED D2 I C Serial Interface Disconnect UOK2 output to Open indicator LED D3 JU3 Ordering Information appears at end of data sheet. UOK2 Connect UOK2 output to Closed* indicator LED D3 Disconnect UOK1 output and Open LED D4 JU4 UOK1 Connect UOK1 output to Closed* indicator LED D4 1-2 Connect IDEF to VIO JU5 IDEF 2-3* Connect IDEF to GND 19-8752 Rev 0 12/16Evaluates: MAX14746/MAX14747 MAX14746 Evaluation Kit Digital Inputs and Outputs Table 1. Jumper Functions and Default The bias for the logic inputs and the open-drain indicators Settings) (continued) can be provided from the VMC pin of J4 connector or from JUMPER SETTINGS DESCRIPTION the pins 6 and 12 of J5. Install jumper JU11 to use VMC 1-2 Connect FSUS to VIO for the VIO supply. JU6 FSUS 2-3* Connect FSUS to GND The UOK1, UOK2, INT, CTYP open-drain outputs use VIO supply for their respective pullup voltages. Jumpers Open Disconnect SDA from R10 (Pullup) JU7 JU1JU4 connect the indicator LEDs D1D4 to these SDA Closed* Connect SDA to R10 (Pullup) open-drain flags. LED pin is another open-drain output, 1-2 Connect THM to R14 the status of which is reflected by indicator D5 when JU16 JU8 THM is installed. 2-3 Connect THM to R16 UOK2/EXT pin is preconfigured by factory as either UOK2 Open Disconnect SCL from R11 (Pullup) JU9 or EXT. EXT is a push-pull output used to control the SCL Closed* Connect SCL to R11 (Pullup) external pMOS load switch Q2. When charger is not pres- Open Disconnect INT from R12 (Pullup) JU10 ent, EXT is high and Q2 connects SYS to BAT. Connect INT Closed* Connect INT to R12 (Pullup) JU15 accordingly based on which function UOK2/EXT is preconfigured to. Open Disconnect VIO from VMC JU11 IDEF and FSUS are digital inputs set by JU5 and JU6. IDEF VMC Closed* Connect VIO to VMC determines if the current limit is fixed at 100mA or controlled Open Disconnect SYS from C10 JU12 2 by I C settings (IBusLim, ILimSet, IBusDetSw bits) FSUS, SYS Closed* Connect SYS to C10 if pulled high, forces the input current limit to 0A Open Disconnect BAT from Q2 USB Inferface JU13 Closed* BAT Connect BAT to Q2 The MAX14746 provides an integrated USB2.0 full-speed 1-2, 3-4 interface (12Mbps). This interface is accessed through Open Disconnect SYS from Q2 JU14 the Micro-USB type-B connector, J1 and type-A connector SYS Closed* Connect SYS to Q2 J3. VBUS of J1 is also the power source for the U1. 1-2* Connect UOK2EXT to Q2 JU15 I/O Interface Connector UOK2EXT 3-4 Connect UOK2EXT to JU3 (UOK2) The EV kit allows accessing the digital I/O of the MAX14746 individually through three different interface Disconnect SYS from indicator Open JU16 D5 LED connectors, J2, J4, and J5. Please refer to Table 2 thru LED Table 4 for the connectors pin description. Closed* Connect SYS to indicator D5 LED Open Disconnect R15 from JU15 (EXT) JU17 Table 2. Aardvark Connector J2 EXT Closed* Connect R15 to JU15 (EXT) PIN MAX14746 DESCRIPTION *Default Position 2 1 SCL I C Serial Clock Input 2 GND Ground 2 3 SDA I C Serial Data Input/Output 4 N.C. Not Connected 5 N.C. Not Connected 6 N.C. Not Connected 7 INT Active-Low Interrupt Output 8 N.C. Not Connected 9 N.C. Not Connected 10 GND Ground Maxim Integrated 2 www.maximintegrated.com