STEVAL-PCN001V1

STEVAL-PCN001V1 USB power switch demonstration board Data Brief Features Input parameters: Load current: 100 mA, 500 mA, 1 A or 2 A. Larger loads can be applied by properly changing the load resistance (R37) Input voltage: 4.4 V, 4.75 V, 5.0 V or 5.25 V Under-voltage protection Power switch: enable or disable option on the GUI to control the voltage on the enable pin of the power switch Output parameters: PC executable software (USBPS GUI) for use with the demonstration board PC executable software (DFUGUI) for STEVAL-PCN001V1 upgrading the firmware by USB using the DFU feature software, as well as through switches present on ST7 firmware (C source code) for the the board. LEDs are provided on the board to ST72F62 microcontroller indicate the various combinations of input voltage and load applied to the power switch. The board Description has an ICC connector to program the microcontroller Flash memory. An external 12 V The purpose of this board is to demonstrate the charge pump is also provided on the board to features and capabilities of the ST204x and allow the user to perform in-application ST205x USB power switches developed by programming (IAP) of the microcontroller STMicroelectronics, using a Windows -based embedded Flash program memory. Any type of host software application and one of several USB real load (e.g. USB speakers) can be powered low-speed microcontrollers from ST acting as a from this board by plugging in the connector peripheral device. The host software and the ST7 present on the board source code provides a clear picture of the power switch capabilities. The USB communication between host and the device is done through a HID class based protocol developed specifically for demonstration board applications. The demonstration board incorporates a microcontroller, programmable voltage regulator, MOSFETS, switches and various resistive networks. The on-board regulator can be configured to supply various voltages by selecting appropriate resistance from the resistive network present at the adjust pin of the regulator. Different voltages and loads can be selected from the PC September 2008 Rev 1 1/4 For further information contact your local STMicroelectronics sales office. www.st.com 4 Obsolete Product(s) - Obsolete Product(s)Board schematic STEVAL-PCN001V1 1 Board schematic Figure 1. Schematic diagram 2/4 Obsolete Product(s) - Obsolete Product(s) CON1 VCC USBVDD 1 USB Power Switch R16 R18 USBDM 2 C1 C14 LD1 D1 10k 10k USBDP 3 4.7uF/25V 100nF IN4148 VSSA 4 R21 AIN4 AIN3 12V R1 USB-B-TYPE 330E U1 TO PC 1.5k R17 R19 U2 X1 LM317T R5 47k U2-1 U2-16 AIN2 10k 10k 1 16 2 3 CON2 GNDA OC1 R31 Vin Vout U2-2 U2-15 VOUT 2 15 R13 R14 IN1 OUT1 USBVDD2 U2-3 1U42-14 1E/5W 1 3 EN1 OUT2 USBDM-2 VCC12V 470E 10k U2-4 U2-13 4 13 2 GND EN2 OC2 USBDP-2 U2-5 U2-12 VCC 5 12 3 C4 X2 GNDB OC3 VSSA U2-6 U2-11 C2 C3 66 11 4 10uF C6 10nF AIN5 IINN22 OUT3 U2-7 U2-10 JP1 10uF/25V 77 10 USB-B-TYPE R4 D2 10uF/25V R15 EENN33 OUT4 U2-8 U2-9 S1 S2 88 99 TO PC R3 47k IN4148 10k EENN44 OOCC44 GND VPP RESET 1 33 33 32 47k 1 ST20XX PD1 32 2 CON3 32 31 2 PD0 31 3 S3 R36 VOUT 4 31 3 1 U3 30 AIN2 C5 4 R32A R33 R34A R35A 0.1E/5W USBDM-2 30 2 V1 4 ST7262 29 AIN3 10uF/25V USBDP-2 5 18k 1k5 10k 1k 29 3 V2 5 6 28 AIN4 R53 R52 VSSA JP2 6 28 4 V3 AIN5 7 27 AIN6 10k 10k 7 27 V4 8 26 USB-A-TYPE 25 8 26 C7 V5 9 25 R32 R34 R35 TO LOAD OSC1 9 25 24 PB0 10 4.7k 0 5.1k Switching Circuit OSC2 24 10 23 RDI 11 23 Y1 11 33pF U4 8 VR1 1 S1 D1 R11 PD2 2 7 C8 12MHz VCC G1 D1 R51 R6 47k GND 4 47k 3 6 R43 S2 D2 GND 47k PD3 4 5 R7 G2 D2 14 47k J1 J4 47k 33pF VPP PD2 STS8DNH3LL 1 11 R8 47k 16 PD1 PD3 2 10 R2 47k VCC PD0 PD4 U5 3 9 R9 47k 25 4 PD5 1 8 VR3 4 8 R44 S1 D1 V1 40 GND PD1 2 7 5 7 R10 G1 D1 40 47k V2 39 VR4 47k 3 6 VCC 6 6 GND R45 S2 D2 USBVDD VDDA VCC V3 VDDA PD0 4 5 7 5 G2 D2 VSS VSSA GND V4 USBVCC 47k 8 4 R22 ICCDATA PB6 V5 USBDP STS8DNH3LL 9 3 V1 OSC1 USBDM 330E ICCCLK PB5 10 2 OSC2 VSSA LD2 U6 11 1 R23 VR5 1 8 V2 GND R46 S1 D1 330E CON11 CON11 PD4 2 7 LD3 ICC G1 D1 47k 3 6 R24 R47 J2 J3 GND S2 D2 PB5 CON4 4 5 V3 VSS RESET G2 D2 330E 47k JP3 ICCDATA 1 11 LD4 1 2 VCC 32 STS8DNH3LL ICCCLK 2 10 R25 GND 33 44 14 31 RESET 3 9 V4 R20 R38 330E 55 66 U2-3 AIN2 4 8 VPP ICC U7 LD5 VCC 77 88 10k 16 AIN3 50E/2W 5 7 R26 OSC1 R12 1 8 9 17 AIN4 R28 10 PB6 S1 D1 6 6 VCC V5 2 7 ICCDATA AIN5 LD9 330E 47k G1 D1 330E HEADER 5X2 7 5 6 LD6 GND R48 3 R39 ICCCLK AIN6 PB4 D2 S2 8 4 4 5 PB4 25 47k G2 D2 10E/5W 9 3 R29 PB3 PB0 10 2 STS8DNH3LL TDO RDI LD7 U8 330E 11 1 JP4 8 1 D1 GND R49 S1 R40 CON11 CON11 PB0 7 2 G1 D1 47k 3 6 5E/5W R50 S2 D2 GND R27 PB3 4 5 Charge-pump Circuit G2 D2 VPP ICC JJ55 J6 LD8 47k 330E U2-1 U2-16 R37 STS8DNH3LL 1 8 U9 VPP U2-2 U2-15 1E/5W 22 7 C9 R30 1 8 U2-3 U2-14 220nF C1- SHDN 33 6 LD10 2 7 U2-4 U2-13 330E C1+ GND 44 5 3 6 U2-5 U2-12 C2- Vout 55 4 4 5 U2-6 U2-11 C2+ VCC 66 3 C10 C13 C12 U2-7 U2-10 77 2 220nF 100nF 4.7uF ST662A U2-8 U2-9 88 1 C11 CCOONN88 CON8 Q1 VCC 4.7uF HS1 R42 10k BC557 HEATSINK R41 PD5 2k2 12 44 VSS PD2 12 44 13 43 USBVDD PD3 13 43 14 14 42 PD4 14 42 PD5 15 41 U2-3 15 41 16 40 16 40 2 16 40 17 39 17 39 1 17 39 ICCDATA 18 38 VDDA 18 38 ICCCLK 19 37 USBVCC 19 37 20 36 PB4 USBDP 20 36 21 35 PB3 USBDM 21 35 22 34 TDO VSSA 22 34 1 2 3 VR1 VR3 1 Adjust VR4 2 1 VR5 AIN6 1 2