NDP5102SE 双USB智能识别IC芯片-骊微电子.pdf

Nanjing Deep-Pool Microelectronics Co., Ltd.Mar-2019 Rev0.2 Page1-6 NDP5102SE Dual USB Dedicated Charging Port Controller Z Typical Application Description The NDP5102SE is a Dual USB dedicated charging port controller. An auto-detect feature monitors USB data line voltage, and automatically provides the correct electrical signatures on the data lines to charge compliant devices among the following dedicated charging schemes: Divider DCP, required to apply 2.7 V and 2.7 V on the D+ and D- Lines respectively BC1.2 DCP, required to short the D+ Line to the D Line Chinese Telecom Standard YD/T 1591- 2009 Shorted Mode, required to short the D+ Line to the D Line 1.2 V on both D+ and D Lines Features Supports USB DCP Shorting D+ Line to D Line per USB Battery Charging Specification, Revision 1.2 (BC1.2) Supports Shorted Mode (Shorting D+ Line to D-Line) per Chinese Telecommunication Industry Standard YD/T 1591-2009 Supports USB DCP Applying 2.7 V on D+ Line and 2.7 V on D- Line Supports USB DCP Applying 1.2 V on D+ and D Lines Automatically Switch D+ and D- Lines Connections for an Attached Device Operating Range: 4.5 V to 5.5 V Available in SOT23-6 Package Applications Car Charger Vehicle USB Power Chargers Networking Systems Other USB Chargers 现货TEL：13808858392 杜S Nanjing Deep-Pool Microelectronics Co., Ltd. Mar-2019 Rev0.2 Page2-6 NDP5102SE Absolute Maximum Ratings (at TA = 25C) Characteristics Symbol Rating Unit VIN to GND -0.3 to 7 V DP1,DM1,DP2,DM2 to GND -0.3 to +6 V Operating Junction Temperature -40 to 125 C Storage Junction Temperature -55 to 150 C Junction to Ambient Thermal Resistance RJA 180 C/W Junction to board thermal resistance RJB 120 C/W Junction to case thermal resistance RJC 42 C/W ESD Ratings Value Unit Electrostatic discharge Human-body model (HBM) 4000 V Pin Function And Descriptions PIN NAME Description 1 DP1 Connected to the D+ line of USB connector 2 GND Ground 3 DP2 Connected to the D+ line of USB connector 4 DM2 Connected to the D- line of USB connector 5 VCC Power suppler 6 DM1 Connected to the D-line of USB connector Order information Recommended Operating Conditions Symbol MIN MAX Unit Input voltage of VCC VCC 4.5 5.5 V DP1,DP2 data line input voltage VDP 0 5.5 V DM1,DM2 data line input voltage VDM 0 5.5 V DP1,DP2 Continuous sink or source current IDP 0 10 mA DM1,DM2 Continuous sink or source current IDM 0 10 mA Order Information Top Marking NDP5102SE NYWW (N: Part NO. Y:Year. WW:Week. Nanjing Deep-Pool Microelectronics Co., Ltd. Mar-2019 Rev0.2 Page3-6 NDP5102SE Electrical Characteristics TJ = 25C. VCC = 5V, unless otherwise noted Characteristics Symbol Conditions Min Typ Max Units Input Voltage VCC 4.3 5 5.5 V UVLO Voltage VUVLO 3.1 3.7 4.3 V UVLO Hysteresis 0.1 V Quiescent Current ICCQ VCC=5V - 220 - uA BC 1.2 DCP Mode DP,DM Short Resistance RDPM 160 200 Resistance between DPX and GND RDPG VDPx=0.8V 650 1000 K Resistance between DMX and GND RDMG VDMx=0.8V 650 1000 K DPx threshold of Goes to divider mode VDPX_TH 300 mV Divider Mode DPx output voltage VDPX_2.7 2.6 2.7 2.8 V DMx output voltage VDMX_2.0 2.6 2.7 2.8 V DPx output impedance RDPX 24 30 36 K DMx output impedance RDMX 24 30 36 K 1.2V /1.2V Mode DPX output voltgage VDPX_1.2 1.12 1.2 1.28 V DMX output voltgage VDMX_1.2 1.12 1.2 1.28 V Note: DPX Stands for DP1 or DP2, DMX Stands for DM1 or DM2 Nanjing Deep-Pool Microelectronics Co., Ltd. Mar-2019 Rev0.2 Page4-6 NDP5102SE Block Diagram Operation As USB charging has gained popularity, the 500mA minimum defined by USB 2.0 specification or 900mA defined in USB 3.0 specification, has become insufficient for many tablets and handphone which have a higher rated charging current. Several new standards have been introduced defining protocol handshaking methods that allow host and client devices to acknowledge and draw additional current beyond the USB 2.0 Specification and the USB 3.0 Specification while using a single USB input connector. The NDP5102SE support four of the most common protocols: USB Battery Charging Specification, Revision 1.2 (BC1.2) Chinese Telecommunications Industry Standard YD/T 1591-2009 Divider mode 1.2 V on both D+ and D lines YD/T 1591-2009 is a subset of the BC1.2 specification supported by the vast majority of devices that implement USB charging. Divider and 1.2-V charging schemes are supported in devices from specific yet popular device makers. BC1.2 has three different port types, listed as Standard downstream port (SDP),Charging downstream port (CDP) and Dedicated charging port (DCP) The BC1.2 Specification defines a charging port as a downstream facing USB port that provides power for charging portable equipment.The BC1.2 Specification defines the protocol necessary to allow portable equipment to determine what type of port it is connected to so that it can allot its maximum allowable current drawn. The hand-shaking process is two steps. During step one, the primary detection, the portable equipment outputs a nominal 0.6-V output on its D+ Nanjing Deep-Pool Microelectronics Co., Ltd. Mar-2019 Rev0.2 Page5-6 NDP5102SE line and reads the voltage input on its D line. The portable device concludes it is connected to a SDP if the voltage is less than the nominal data detect voltage of 0.3 V. The portable device concludes that it is connected to a Charging Port if the D voltage is greater than the nominal data detect voltage of 0.3 V and less than 08 V. The second step, the secondary detection, is necessary for portable equipment to determine between a CDP and a DCP. The portable device outputs a nominal 0.6-V output on its D line and reads the voltage input on its D+ line. The portable device concludes it is connected to a CDP if the data line being remains is less than the nominal data detect voltage of 0.3 V. The portable device concludes it is connected to a DCP if the data line being read is greater than the nominal data detect voltage of 0.3 V and less than 0.8 V. Applications Information Dedicated Charging Port (DCP) A dedicated charging port (DCP) is a downstream port on a device that outputs power through a USB connector but is not capable of enumerating a downstream device, which generally allows portable devices to fast charge at their maximum rated current. A USB charger is a device with a DCP, such as a wall adapter or car power adapter. A DCP is identified by the electrical characteristics of its data lines. The following DCP identification circuits are usually used to meet the handshaking detections of different portable devices. Short the D+ Line to the D Line The USB BC1.2 Specification and the Chinese Telecommunications Industry Standard YD/T 1591- 2009 define that the D+ and D data lines must be shorted together with a maximum series impedance of 200 . Divider DCP The Divider charging scheme is used for 12-W adapters, and applies 2.7 V on D+ and D lines. Applying 1.2 V to the D+ Line and 1.2 V to the D Line The devices are USB dedicated charging port (DCP) controllers. Applications include vehicle power charger, wall adapters with USB DCP and other USB chargers. The device DCP controllers have the auto- detect feature that monitors the D+ and D line voltages of the USB connector, providing the correct electrical signatures on the DP and DM pins for the correct detections of compliant portable devices to fast charge. These portable devices include smart phones, 5-V tablets and personal media players. DCP Auto-Detect The devices integrate an auto-detect feature to support divider mode, short mode and 1.2 V / 1.2 V modes. If a divider device is attached, 2.7 V is applied to the DPx and DMx pin. If a BC1.2-compliant device is attached, the NDP5102SE automatically switches into short mode. If a device compliant with the 1.2 V / 1.2 V charging scheme is attached, 1.2 V is applied on both the DP pin and the DM pin. default mode is Divider 3 (D+/D = 2.7 V / 2.7 V). Undervoltage Lockout (UVLO) The undervoltage lockout (UVLO) circuit disables DP1, DM1, DP2 and DM2 output voltage until the input voltage reaches the UVLO turn on threshold. Built-in hysteresis prevents unwanted oscillations due to input voltage drop from large current surges. Nanjing Deep-Pool Microelectronics Co., Ltd. Mar-2019 Rev0.2 Page6-6 NDP5102SE Package Description SOT23-6 (unit：mm) SYMBOL MILLIMETER MIN NOR MAX A - - 1.35 A1 0.04 - 0.15 A2 1.00 1.10 1.20 b 0.3 0.4 0.5 c 0.1 0.15 0.2 D 2.72 2.92 3.12 E 1.40 1.60 1.80 E1 2.60 2.80 3.0 e 0.95BSC e1 1.90BSC L 0.30 - 0.60 0 - 8