IP6503S-2.4A

IP6503S 2.4A/3.1A OUTPUT STEP-DOWN CONVERTER with DCP PROTOCOLS 1 Features 3 Introduction  Synchronous step-down converter  Built-in Power MOSFETs  Wide Input Voltage Range, 8V to 32V  Output Voltage Range, 5V  Output Current, 2.4A/3.1A  Output Current Limit Protection  Conversion efficiency up to 94%  Soft-Start  Output Voltage Line Loss Compensation, 50mV@1A  Supports DCP(BC1.2, Apple, Samsung)  Multiple Safety Protections  Input Over-Current Protection, Output Over-Current Protection, Input Over/Under Voltage Protection, Short Circuit Protection  Over Temperature Protection  Input Voltage Withstand up to 40V  ESD 4KV IP6503S is a synchronous step-down converter with built-in power MOSFETs. IP6503S supports DCP protocols (BC1.2, Apple and Samsung), providing total solution to car charger, charge adapter and intelligent power hub applications. IP6503S exhibits CV/CC characteristics. The output in CV mode when the load current lower than current limit, otherwise in CC mode, in which the output voltage decreases as the load current increases. IP6503S supports output voltage compensation due to the line loss. The output voltage increases at 50mV@1A rate as the load current increases. IP6503S incorporates soft-start function to prevent the inrush current during start-up. IP6503S incorporates multiple safety protections, such as input OV/UV, output OV/UV/OC and SC protection. The package of IP6503S is ESOP8. 2 Application    Car Charger Charge Adapter Intelligent Power Hub V1.0 www.injoinic.com 1 / 11 Copyright © 2018, Injoinic Corp. IP6503S L2 VIN输入 8-32V VIN C3 1 8 2 7 C4 C5 SW NC C1 R1 BST VOUT L1 IP6503S DP DM GND 3 C2 6 DP VOUT DM 4 5 ESOP8 Fig. 1 IP6503S Simplified Schematic 4 PIN Definition VIN 1 8 2 7 BST SW NC IP6503S DP GND 3 6 VOUT DM 4 5 ESOP8 Fig. 2 IP6503S PIN Configuration NO. Name 1 VIN Input voltage node 2 NC Floating PIN, do not connect 3 DP Connect to USB DP data line 4 DM Connect to USB DM data line 5 VOUT Output voltage feedback node 6 GND Power ground 7 SW Switching node of the DC-DC converter 8 BST Bootstrap capacitor node 9(EPAD) GND Power and thermal ground V1.0 Description http://www.injoinic.com/ 2 / 11 Copyright © 2018, Injoinic Corp. IP6503S 5 Product Selection Table Max. IOUT Product Dual output Protocol DCP QC2.0 QC3.0 FCP SCP AFC MTK PE SFCP PD2.0 PD3.0 Package (PPS) - - - - - - - - SOP8 IP6503 3.1A - √ - - - - - - - - - ESOP8 IP6503_2A4 2.4A - √ - - - - - - - - - ESOP8 IP6503S 3.1A - √ - - - - - - - - - ESOP8 IP6503S_2A4 2.4A - √ - - - - - - - - - ESOP8 IP6523S 3.4A - √ - - - - - - - - - ESOP8 IP6505 24W - √ √ √ √ √ √ √ √ - - ESOP8 IP6505T 24W - √ √ √ √ √ √ √ √ - - ESOP8 IP6525T 18W - √ √ √ √ - √ - - - - ESOP8 IP6510 18W - √ √ √ √ - √ - - √ - ESOP8 IP6518C 36W - √ √ √ √ √ √ √ √ √ - QFN24 IP6518 45W - √ √ √ √ √ √ √ √ √ - QFN24 IP6515 4.8A √ √ - - - - - - - - - QFN32 IP6528_CC 27W √ √ √ √ √ √ √ √ - √ √ QFN32 IP6528_AC 27W √ √ √ √ √ √ √ √ - √ √ QFN32 IP6528_AA 27W √ √ √ √ √ - √ √ - - - QFN32 V1.0 http://www.injoinic.com/ 3 / 11 PIN2PIN - PIN2PIN √ PIN2PIN - PIN2PIN 2.4A PIN2PIN IP6502 Copyright © 2018, Injoinic Corp. IP6503S 6 Absolute Maximum Ratings Parameters Symbol Value Unit Input voltage range VIN -0.3 ~ 40 V SW voltage range VSW -0.3 ~ 40 V DM/DP voltage range V DM/DP -0.3 ~ 30 V VOUT voltage range V VSP/VSN -0.3 ~ 30 V Junction Temp range TJ -40 ~ 150 ℃ Storage Temp range Tstg -60 ~ 150 ℃ Thermal resistance (junction to ambient） θJA 40 ℃/W ESD（HBM） ESD 4 KV * Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions are not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. Unless otherwise specified, all voltages are referenced to VSS pin. 7 Recommended Operating Conditions V1.0 Parameter Symbol Min. Typ. Max. Unit Input voltage VIN 8 12/24 32 V http://www.injoinic.com/ 4 / 11 Copyright © 2018, Injoinic Corp. IP6503S 8 Electrical Charateristics TA=25℃，L=22uH，COUT=220uF E-cap(About 100mΩ ESR)，VIN=12V，VOUT=5V, otherwise specified Parameter Symbol Test Condition Min. Typ. 8 12 Max. Unit Input System Input voltage VIN Input under voltage threshold VIN-UV Input over voltage threshold VIN-OV Input quiescent current hysteresis hysteresis IQ VIN=12V, VOUT=5V@0A 32 V 8.1 V 0.3 V 32 V 0.2 V 1 mA Converter System High side MOSFET on resistance RDS(ON) 100 mΩ Low side MOSFET on resistance RDS(ON) 80 mΩ FSW 150 KHz Switching frequency Output System Output voltage VOUT Output voltage ripple ΔVOUT Soft-start time TSS Line loss compensation VCOMP Current limit in CC mode 4.75 5 5.25 V VIN=12V，VOUT=5V@3A 150 mV VIN=12V，VOUT=5V 10 ms VIN=12V， VOUT=5V，IOUT=3A 180 mV IOUT VIN=12V，VOUT=5V 3.1 A Output hiccup restart voltage VOUT When output enters CC mode, output hiccup restart voltage 4 V Thermal shutdown Temp. TOTP 150 ℃ Thermal shutdown Temp. hysteresis ΔTOTP 40 ℃ V1.0 http://www.injoinic.com/ 5 / 11 Copyright © 2018, Injoinic Corp. IP6503S 9 Detailed Description Synchronous Step-Down Converter The IP6503S is a synchronous step-down converter with built-in power MOSFETs. .IP6503S supports wide input voltage range (8-32V) and 5V output at 3.1A Max. load current. The switching frequency is 150KHz. The conversion efficiency is up to 94% at VIN=12V, VOUT=5V@2A. The efficiency under different input voltage and load current is shown in Fig. 3. Fig. 4 shows the output voltage characteristics under different load current. IP6503S Efficiency Curve 96 95 94 93 n(%) 92 91 VIN=12V 90 VIN=24V 89 88 87 0 500 1000 1500 2000 2500 3000 3500 Iout(mA) Fig. 3 IP6503S Conversion Efficiency IP6503S Output Voltage Curve 6 5 Vout(V) 4 3 VIN=12V 2 VIN=24V 1 0 0 500 1000 1500 2000 2500 3000 3500 4000 Iout(mA) Fig.4 IP6503S Output Voltage Characteristics V1.0 http://www.injoinic.com/ 6 / 11 Copyright © 2018, Injoinic Corp. IP6503S Output Voltage Line Loss Compensation IP6503S supports output line loss compensation. The output voltage increases at 50mV/1A rate. CC/CV Characteristics IP6503S exhibits CV/CC characteristics. The output in CV mode when the load current lower than current limit, otherwise in CC mode, in which the output voltage decreases as the load current increases. Protections IP6503S monitors voltage on VIN. If the voltage is lower than 8.1V, IP6503S enters standby mode, and shuts down the converter. If the voltage is higher than 32V, IP6503S detects over voltage, and then shuts down the converter. When VIN decreases 0.2V lower than the over voltage threshold, IP6503S resumes the output voltage. IP6503S also monitors voltage on VOUT. If the voltage is lower than 4V, IP6503S detects output under voltage, and then shuts down the converter. During output under voltage protection, IP6503S enters hiccup mode, and restarts the converter every 2 seconds. IP6503S incorporates short circuit protection. After 8ms from start-up, if VOUT is lower than 4V, IP6503S detects output short circuit, then shutting down the converter, and enters hiccup mode. IP6503S restarts the converter every 2 seconds. IP6503S detects over temperature when the chip temperature is higher than 150℃. IP6503S shuts down the converter and restarts the every 2 seconds. When the chip temperature decreases below 110℃, IP6503S returns to normal state. Charge Protocols IP6503S supports DCP (BC1.2, Apple, Samsung). V1.0 http://www.injoinic.com/ 7 / 11 Copyright © 2018, Injoinic Corp. IP6503S 10 Typical Application Fig.5 shows the typical application schematic. VIN input 8~32V L2 VIN C3 1 8 BST R1 0.1uF 100uF 0.1uF D1 7 2 IP6503S VOUT R2 NC C4 C1 SW DP GND 3 C6 1nF 2R VOUT 10uH L1 Apply C5 to decrease the ripple 6 3.3K For EMI, C4 = 10uF; For no EMI, C4 = 0.1uF; To decrease the ripple, C2 is 220uF 10uF 100uF C5 C2 DM DP VOUT DM 4 5 Indicator LED, Apply if needed ESOP8 Fig. 5 IP6503S Application Schematic V1.0 http://www.injoinic.com/ 8 / 11 Copyright © 2018, Injoinic Corp. IP6503S 11 BOM NO. Device Spec. Unit Counts Designator 1 IC IP6503 PCS 1 U1 2 electrolytic capacitor 100uF/35v PCS 1 C1 备注 Withstand voltage higher than 35V Withstand voltage higher 3 electrolytic capacitor 100uF/16v PCS 1 C2 than 16V To decrease ripple, C2 is 220uF 4 SMT capacitor 0603 0.1uF 10% PCS 1 C3 Withstand voltage higher than 10V Withstand voltage higher 5 SMT capacitor 0603 0.1uF 10% PCS 1 C4 than 35V For EMI certificate, C4 is 10uF 6 Inductor 10uH+/-20%, current 4.5A DCR