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Technical content
Features
Fully supports Quick Charge 2.0 specification Class A: 5 V , 9 V , and 12 V output voltage Apple DCP support Samsung DCP support BC1.2 DCP support USB battery charging sp ecification revision 1.2 compatible Automatic USB DCP shorting D+ to D- line Default 5 V mode operation Very low power consumption Less than 1 mW at 5 V output Supports Chinese Communications Industry Standard YD/T 1591-2009 SE100B a utomatically detects whether a connected Powered Device (PD) is QC2.0 capable before enabling output voltage adjustment. If a PD that is not compliant to QC2.0 is detected the SE100B disables output voltage adjustment to ensu re safe operation with legacy 5 V only USB PDs. General Description SE100B is designed to support QuickCharge QC 2.0 (QC2.0) specifications. At the same time, it also supports Apple, Samsung and BC1.2 DCP (Dedicated Charging Port) compliant devices. It is a low-cost so lution to support QC2.0 functions, and various other DCP interfaces devices. SE100B incorporates all necessary functions to add QC2.0 capability to standard Adaptor designs, Portable Battery designs, and Car-charger designs. SE100B supports the full output voltage range of either Class A or Class B. Optionally Class B can be inhibited for protecting the battery charger from accidental damage. Pin Configuration
Applications
Adaptors for smart phones, tablets, netbooks, digital cameras, and bluetooth accessories Portable Battery Packs supporting QC2.0 functions Car Cargers supporting QC2.0 functions Other USB power output ports supporting QC2.0 functions Rev1.0 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., • www.seawardinc.com • Page 1 9/4/2012
QC2.0 Interface Module Typical Application Pin Description NO. Pin Name Pin Function Description
1 GND Ground
2 V1 Open Drain input of output voltage adjustment switch. Active for 9 V, 12 V, and 20 V output setting. 3 V2 Open Drain input of output voltage adjustment switch. Active for 12 V, and 20 V output setting. 4 V3 Open Drain input of output voltage adjustment switch. Active for 20 V output setting. 5 D- USB D- data line input. 6 D+ USB D+ data line input. 7 R Connected to internal band-gap reference. Provides reference current through connected resistor.
8 BP Connection point for an external bypass capacitor for the internally generated supply
voltage. Rev1.0 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., • www.seawardinc.com • Page 2 9/4/2012
QC2.0 Interface Module Functional Block Diagram Absolute Maximum Ratings Symbol Parameter Maximum Units VBP BYPASS Pin Voltage 5.6 V VR REFERENCE Pin Voltage 5 V VV1/V2/V3 V1/V2/V3 Pin Voltage V BP+0.7V V VD+/D- D+/D- Pin Voltage 5 V IBP BYPASS Pin Current 15 mA I V1/V2/V3 V1/V2/V3 Pin Current 0.5 mA I D+/D- D+/D- Pin Current 1 mA Rev1.0 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., • www.seawardinc.com • Page 3 9/4/2012
Rev1.0 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., • www.seawardinc.com • Page 4 9/4/2012 SE100B QC2.0 Interface Module Recommended Operating Conditions Symbol Parameter Maximum Units TJ Operating Junction Temperature -20 to 125 ℃ TA Operating Ambient Temperature -20 to 85 ℃ Ts Storage Temperature -65 to150 ℃ Lead Temperature (less than 15 seconds) 260 ℃
Electrical Characteristics
（Vcc=5V； Tj=25 ℃ unless otherwise specified） Symbol Parameter Test Conditions Min Typ Max Unit VBP BYPASS Pin Voltage 4 5 V VBP（reset） Power-Up Reset Threshold Voltage 3.8 V IBPSC BYPASS Pin Source Current VBP = 4.3 V, T J = 25 °CN1 = N2 = N3 = Off 140 μA IBP(SHUNT) BYPASS Pin Shunt Voltage IBP=3mA 5.0 5.3 5.6 V VR REFERENCE Pin Voltage 1.22 1.27 1.32 V VDAT(REF) Data Detect Voltage 0.325 V VSEL(REF) Output Voltage Selection Reference 2 V VINH 12 V / 20 V Output Inhibit Threshold V BP-0.8 V IDAT(SHORT) Data Lines Short-Circuit Delay VOUT ≥ 0.8 V 18 μs TGLITCH D+ High Glitch Filter Time 1250 ms TGLITCH(V) CHANGE Output Voltage Glitch Filter Time 32 ms RDM(DWN) D- Pull-Down Resistance 19.53 KΩ RDS(ON)N1 Switch N1 On-Resistance I N1=200μA 300 Ω RDS(ON)N2 Switch N2 On-Resistance I N2=200μA 300 Ω RDS(ON)N3 Switch N3 On-Resistance I N3=200μA 300 Ω RDS(ON)N4 Switch N4 On-Resistance I N4=200μA 300 Ω RDSN5 Switch N5 On-Resistance IN1=200μA，VD+≤3.6V 60 Ω
QC2.0 Interface Module Typical Performance Characteristics 握手完成后，D+,D-输入 0.6V；D+由 0.6V 升到 3.3V，V1 打开 握手完成后， D-输入 0.6V； V1/V2 打开 握手完成后，D+，D-输入 0.6V;D+由 0.6 升 到 3.3V，V1 打开，D-由 0.6 升到 3.3V， V1/V2/V3 打开 Rev1.0 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., • www.seawardinc.com • Page 5 9/4/2012
QC2.0 Interface Module above V DAT(REF) (typ. 0.325 V) and below VSEL(REF) (typ. 2 V) for at least 1.25 seconds SE100B will enter Quick Charge 2.0 operation mode. If the voltage at D+ drops any time below 0.325 V SE100B resets the 1.25 seconds timer and stays in USB Battery Charging Specification 1.2 compatibility mode with a default output voltage of 5 V . Once SE100B has entered Quick Charge 2.0 operation mode switch N5 will be turned off. Additionally switch N4 is turned on connecting a 19.53 kΩ pull-down resistor to D-. As soon as the voltage at D- has dropped low (<0.325 V) for at least 1 ms SE100B st arts accepting requests for different AC-DC adapter output voltages by means of applied voltage levels at data lines D+ and D- through the powered device. Table 1 summarizes the output voltage lookup table, corresponding AC-DC adap ter output voltages and status of switches N1 to N3. For Quick Charge 2.0 Class A support only, the V3 pin has to be connec ted to the BYPASS pin (directly or through a resistor up to 100 k Ω). This will inhibit any requests for setting a 20 V output. RDAT(LKG) Selection When USB cable is disconnected, the voltage level at D+ is pulled down by resistor R DAT(LKG) (see Figure 1). Once it drops below 0.325 V SE100B will turn on switch N5 (thereby short-circuiting D+ and D-) and turns off switches N1 to N4. This sets the default output voltage of 5 V . The recommended value for RDAT(LKG) = 3MΩ. V o1(5V)=VFB*((R1/R2)+1); Vo2(9V)= VFB*((R1/ RX1)+1), RX1=R2//R3; Vo3(12V)= VFB*((R1/ RX2)+1), RX2=RX1//R4; Vo4(20V)= VFB*((R1/ RX3)+1), RX3=RX2//R5; Rev1.0 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., • www.seawardinc.com • Page 7 9/4/2012
QC2.0 Interface Module OUTLINE DRAWING SOP-8 4 5 H E D A B C MIN MAX MIN MAX A 0.0532 0.0688 1.35 1.75 A1 0.0040 0.0098 0.10 0.25 B 0.0130 0.0200 0.33 0.51 C 0.0075 0.0098 0.19 0.25 D 0.1890 0.1968 4.80 5.00 H 0.2284 0.2440 5.80 6.20 E 0.1497 0.1574 3.80 4.00 DIMENSIONS 0.050 BSC 1.27 BSC DIMN INCHES MM 联系方式： 北京思旺电子技术有限公司–中国总部 地址：中国北京市海淀区信息路22 号上地科技综合楼B 座二层 邮编：100085 电话:010-82895700/1/5 传真:010-82895706 Seaward Electronics Corporation – 台 湾办事处 2F, #181, Sec. 3, Minquan East Rd, Taipei, Taiwan R.O.C 电话: 886-2-2712-0307 传真: 886-2-2712-0191 Seaward Electronics Incorporated – 北 美办事处 1512 Centre Pointe Dr. Milpitas, CA95035, USA 电话: 1-408-821-6600 Rev1.0 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., • www.seawardinc.com • Page 8 9/4/2012