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Technical content
Features
Start-up Voltage: 2.5V Wide Supply Voltage Operating Range: 4.5V to 24V Precision Feedback Reference Voltage: 0.6V (±2%) S hutdown Current: <1μA Programmable PWM Frequency: 100KHz~1000KHz Programmable Soft Start Function (SS) Light Load Detection / FP5208B P rogrammable Over Current Protection (OCP) / FP5208B Over Temperature Protection (OTP) Package: SOP-8L(EP) / FP5208, DFN-12L / FP5208B
Applications
Chargers LCD Displays Handheld Devices Portable Products TEL:0755-82863877 13242913995 E-MAIL:panxia168@126.com http://www.szczkjgs.com
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Typical Application Circuit FP5208 RT EXT HVDDEN VDS VIN VOUT COMP FB GND SS FP5208B HVDD SCO EXT GNDEN VDS VIN VOUT COMP FB SS RT ISP ISN LOAD TEL:0755-82863877 13242913995 E-MAIL:panxia168@126.com http://www.szczkjgs.com
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Function Block Diagram PWM Comp. Error Amp. Control and Driver Logic Oscillator EXT EN UVLO Shutdown Circuit 100KHz~1000KHz GND VRAMP LDO LDO HVDD VDS = 8.5VVDDI = 3.5V COMP VDS RT FB 0.6V SS Soft Start FP5208 PWM Comp. Error Amp. Control and Driver Logic Oscillator EXT EN UVLO Shutdown Circuit 100KHz~1000KHz GND VRAMP LDO LDO HVDD VDS = 8.5VVDDI = 3.5V COMP ISN ISP SCO VDS OCPSCO RT FB 0.6V OCP Level = 1.2V SS Soft Start Current Detection Comparator FP5208B TEL:0755-82863877 13242913995 E-MAIL:panxia168@126.com http://www.szczkjgs.com
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Pin Descriptions SOP-8L (EP) VDS EN COMP FB EXT HVDD RT SS FP5208 XXx-XXL Top View EP Bottom View DFN-12L FP5208B XXxXXL EP Top View Bottom View EP VDS COMP SS EN EXT HVDD ISP GND RT ISN FB SCO Name No. I / O Description VDS 1 P Power Supply for Internal Control Circuits and Gate Drivers EN 2 I Enable Control COMP 3 O Compensation FB 4 I Error Amplifier Inverting Input SS 5 I Soft Start Programming RT 6 I Frequency Programming HVDD 7 P IC Power Supply EXT 8 O Gate Driver Output GND 9 P IC Ground (Exposed PAD) – Must Connect to Ground Name No. I / O Description VDS 1 P Power Supply for Internal Control Circuits and Gate Drivers EN 2 I Enable Control COMP 3 O Compensation FB 4 I Error Amplifier Inverting Input SS 5 I Soft Start Programming SCO 6 I Adjustable Output Current Protection ISN 7 I Current Sense Comparator Inverting Input ISP 8 I Current Sense Comparator Non-inverting Input RT 9 I Frequency Programming HVDD 10 P IC Power Supply GND 11 P IC Ground EXT 12 O Gate Driver Output EP 13 P Exposed PAD – Connect to Ground TEL:0755-82863877 13242913995 E-MAIL:panxia168@126.com http://www.szczkjgs.com
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Marking Information SOP-8L(EP) Halogen Free Lot Number Internal ID Per - Half Month Year FP5208 XXx-XXL DFN-12L FP5208B XXxXXL Halogen Free Lot Number Internal ID Per-Half Month Year Halogen Free: Halogen free product indicator Lot Number: Wafer lot number’s last two digits For Example Lot : 123456 XXx-56L Internal ID: Internal Identification Code Per-Half Month: Production period indicator in half month time unit For Example : A → First Half Month of January B → Second Half Month of January C → First Half Month of February D → Second Half Month of February Year: Production year’s last digit TEL:0755-82863877 13242913995 E-MAIL:panxia168@126.com http://www.szczkjgs.com
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Ordering Information
Part Number Operating Temperature Package MOQ Description FP5208XR-G1 -25°C ~ 85°C SOP-8L (EP) 2500EA Tape & Reel FP5208BdR-G1 -25°C ~ 85°C DFN-12L 2500EA Tape & Reel Absolute Maximum Ratings Parameter Symbol Conditions Min. Typ. Max. Unit Supply Voltage HVDD 0 25 V ISP, ISN (FP5208B) 0 6 V VDS,EXT Voltage 0 16 V Others Pin Voltage 0 6 V Thermal Resistance (Junction to Ambient) θJA SOP-8L (EP) +60 °C / W DFN-12L +60 °C / W Thermal Resistance (Junction to Case) θJC SOP-8L (EP) +10 °C / W DFN-12L +10 °C / W Junction Temperature TJ +150 °C Operating Temperature TOP -25 +85 °C Storage Temperature TST -65 +150 °C Lead Temperature (soldering, 10 sec) +260 °C IR Re-flow Soldering Curve TEL:0755-82863877 13242913995 E-MAIL:panxia168@126.com http://www.szczkjgs.com
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Recommended Operating Conditions Parameter Symbol Conditions Min. Typ. Max. Unit Supply Voltage HVDD 4.5 24 V Operating Temperature Range TA Ambient Temperature -25 +85 °C Parameter Symbol Conditions Min. Typ. Max. Unit System Supply Input Start-up Voltage HVDD 2.5 V Input Supply Range HVDD 4.5 24 V Under Voltage Lockout VUVLO 2.2 V UVLO Hysteresis 0.1 V Average Current ICC FB=0.4V, Switching 1 mA Quiescent Current ICC FB=0.8V, No Switching 245 µA Shutdown Current ICC VEN=GND 1 µA Input Supply Voltage VDS HVDD=12V, IDS=0A 8.5 V Oscillator Operation Frequency fOSC RT=NC 160 200 240 KHZ RT=50KΩ 400 500 600 KHZ Maximum Duty Ratio % FB=0.4V 90 % Soft Start Soft-Start bias Current ISS Vss=0V 1.5 µA Reference Voltage Feedback Voltage VFB HVDD=12V 0.588 0.6 0.612 V Enable Control Enable Voltage VEN 1.4 V Shutdown Voltage VEN 0.5 V External Transistor Connection current EXT Pull-UP Resistance REXTH VDS=8.5V 1 Ω EXT Pull-Down Resistance REXTL VDS=8.5V 1 Ω Current Sense SCO Voltage VSCO ISP-ISN=1mV RG1=RG2=1KΩ,RSCO=20KΩ 16 20 24 mV ISP-ISN=10mV RG1=RG2=1KΩ,RSCO=20KΩ 190 200 210 mV ISP-ISN=20mV RG1=RG2=1KΩ,RSCO=20KΩ 380 400 420 mV SCO Source Current ISCO VSCO=0V 100 µA Current Limit SCO Threshold Voltage VSCO 1.176 1.2 1.224 V Thermal Shutdown Thermal Shutdown Threshold TTS +150 °C TEL:0755-82863877 13242913995 E-MAIL:panxia168@126.com http://www.szczkjgs.com
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Typical Operating Characteristics (TA=25℃, unless otherwise specified) TEL:0755-82863877 13242913995 E-MAIL:panxia168@126.com http://www.szczkjgs.com
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. increases output voltage ripple. frequency is shown in Figure 1. The oscillator frequency can be calculated using formula below. Figure 1. Frequency vs. RT Resistance
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Thermal Shutdown Protection The IC will shut down automatically when the internal junction temperature exceeds +150°C. The device can restart until the junction temperature drops below +120°C approximately.
Application Information
Inductance value is decided based on different condition. 4.7µH to 22uH inductance value is recommended for general application circuit. There are three important inductor specifications, DC resistance, saturation current and core loss. Low DC resistance has better power efficiency. Capacitor Selection The output capacitor is required to maintain the DC voltage during switching. Low ESR capacitors are preferred to reduce the output voltage ripple. Ceramic capacitor of X5R and X7R are recommended, which have low equivalent series resistance (ESR) and wider operation temperature range. Diode Selection Schottky diodes with fast recovery times and low forward voltages are recommended. Ensure the diode average and peak current rating exceed the average output current and peak inductor current. In addition, the diode’s reverse breakdown voltage must exceed the output voltage. Output Voltage Programming The output voltage is set by a resistive voltage divider from the output voltage to FB. The output voltage is: R71 0.6VVOUT TEL:0755-82863877 13242913995 E-MAIL:panxia168@126.com http://www.szczkjgs.com
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Layout Considerations 1. The power traces, consisting of the GND trace, the MOS drain trace and the V IN trace should be kept short, direct and wide. 2. Layout switching node MOS drain, inductor and schottky diode connection traces wide and short to reduce EMI. 3. Place C8 nearby HVDD pin as closely as possible to maintain input voltage steady and filter noise. 4. The resistive divider R7 and R8 must be connected to FB pin directly and as closely as possible. 5. FB is a sensitive node. Please keep it away from switching node, MOS drain. 6. The GND of the Q1, C1, C2, C12 and C13 should be connected close and together directly to a ground plane. 7. RG1 and RG2 must be connected to sense resistance (Rs) directly as closely as possible. 8. The output capacitor C12 and C13 should be connected close and together directly to the ground of Q1. VOUT GND 4 5 VIN Via to VIN Via to VOUT Via to VIN Via to GND C13C12 C11 R7 R2C4 C3C2C1 FP5208 EXT HVDDEN VDS COMP FB GND SS RT C6 Via to GND VOUT GND FP5208B HVDD SCO EXT GNDEN VDS COMP FB SS RT ISP ISN 6 7 LOAD VIN Via to VIN Via to VOUT Via to VIN Via to GND Via to GND RG1 RG2 RS C13C12 RSCO C11 R7 R2C4 C3C2C1 Suggested Layout TEL:0755-82863877 13242913995 E-MAIL:panxia168@126.com http://www.szczkjgs.com
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. VIN 3V~4.2V VOUT 12V/2A 22μF 22μF 1μF 100K R2C4 20K33nF C12 C13 C11 R13 C15 D1L1 47pF 1μF 0.1μF 75K 20K 2.2nF 82K 4.3K 22μF330μF SVM1545LB4.7μH AP83T03GMT FP5208 RT EXT HVDDEN VDS COMP FB GND SS VIN 12V VOUT 19V/3A 330μF 100K 120K 3.9K 470μF 10μH AP0504GMT C1 C2 0.1μF 1μF 100K R2C4 20K33nF C12 C13 C11 R13 C15 D1L1 47pF 1μF 0.1μF 20K 2.2nF 10μF SVM1045V2 FP5208 RT EXT HVDDEN VDS COMP FB GND SS TEL:0755-82863877 13242913995 E-MAIL:panxia168@126.com http://www.szczkjgs.com
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. FP5208B HVDD SCO EXT GNDEN VDS VIN 3V~4.2V VOUT 12V/2A COMP FB SS RT ISP ISN LOAD 22μF 22μF 1μF 100K R2C4 20K33nF RSCOC7 RG1 RG2 RS C12 C13 C11 R13 C15 D1L1 47pF 1μF 0.1μF 54K 0.1μF 75K 20K 2.2nF 82K 4.3K 22μF330μF SVM1545LB4.7μH AP83T03GMT 10mΩ FP5208B HVDD SCO EXT GNDEN VDS VIN 12V VOUT 19V/3A COMP FB SS RT ISP ISN LOAD 330μF 0.1μF 1μF 100K R2C4 20K33nF RSCOC7 RG1 RG2 RS C12 C13 C11 R13 C15 D1L1 47pF 1μF 0.1μF 36K 0.1μF 100K 20K 2.2nF 120K 3.9K 10μF470μF SVM1045V210μH AP0504GMT 10mΩ Note: 1. The X5R and X7R of ceramic capacitors are recommended to choose. 2. R13 and C15 are added for reducing EMI (Electromagnetic Interference). TEL:0755-82863877 13242913995 E-MAIL:panxia168@126.com http://www.szczkjgs.com
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Package Outline SOP-8L (EP) Exposed PAD Dimensions: Note: 1. Package dimensions are in compliance with JEDEC outline: MS-012 AA. 2. Dimension ”D” does not include molding flash, protrusions or gate burrs. 3. Dimension “E” does not include inter -lead flash or protrusions. Symbols Min. (mm) Max. (mm) A 1.346 1.752 A1 0.050 0.152 A2 1.498 D 4.800 4.978 E 3.810 3.987 H 5.791 6.197 L 0.406 1.270 θ° 0° 8° Symbols Min. (mm) Max. (mm) E1 1.94 2.29 D1 1.94 2.29 TEL:0755-82863877 13242913995 E-MAIL:panxia168@126.com http://www.szczkjgs.com
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. DFN-12L Exposed PAD Dimensions: Note: 1. All dimensions are in millimeters. 2. Dimension ”b” applies to metalized terminal and is measured betw een 0.15mm and 0.30mm from the terminal tip. If the terminal has the optional radius on the other end of the terminal, the dimension “b” should not be measured in that radius area. 3. Bilateral coplanarity zone applies to the exposed heat sink slug as well as the terminals. Symbols Min. (mm) Max. (mm) A 0.700 0.800 A1 0.000 0.050 A3 0.200 REF b 0.180 0.280 D 3.000BSC E 3.000BSC e 0.450BSC L 0.300 0.500 K 0.200 - Symbols Min. (mm) Max. (mm) LEAD FINISH JEDEC CODE Pure Tin PPF E2 1.500 1.650 V X N/A D2 2.400 2.550 TEL:0755-82863877 13242913995 E-MAIL:panxia168@126.com http://www.szczkjgs.com