FP6293XR-G1

FP6293 1MHz, 3.5A Step-Up Current Mode PWM Converter General Description The FP6293 is a current mode boost DC-DC converter. Its PWM circuitry with built-in 0.14Ω power MOSFET make this regulator highly power efficient. The internal compensation network also minimizes as much as 6 external component counts. The non-inverting input of error amplifier connects to a 0.6V precision reference voltage and internal soft-start function can reduce the inrush current. The FP6293 is available in the DFN-8L/SOP-8L(EP) package and provides space-saving PCB for the application fields. Features  Adjustable Output up to 13V  Internal Fixed PWM frequency: 1.0MHz  Precision Feedback Reference Voltage: 0.6V (±2%)  Internal 0.14Ω, 3.5A, 18V Power MOSFET  Shutdown Current: 0.1μA  Over Temperature Protection  Over Voltage Protection  Adjustable Over Current Protection: 0.5A ~ 3.5A  Package: DFN-8L, SOP-8L(EP) Applications  Chargers  LCD Displays  Digital Cameras  Handheld Devices  Portable Products Typical Application Circuit VOUT VIN 1 2 PGND LX OC NC 8 7 FP6293 3 4 VCC FB EN GND 6 5 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. Rev. 0.71 Website: http://www.feeling-tech.com.tw 1/13 FP6293 Function Block Diagram GND VCC EN OC UVLO Shutdown Circuitry Adjustable Current Limit 27kΩ~192kΩ 3.5 A ~ 0.5A LX OTP OVP Error Amp. . FB Control and Driver Logic 0.6V PWM Comp. Soft Start PGND Current Sense Amp. Slope Compensation Oscillator 1 MHz Pin Descriptions DFN-8L Top View Vcc EN FP6293 OC XXxXXL PGND Name No. I / O Description LX PGND 1 P IC Ground NC OC 2 I Adjustable Current Limit (Floating Available) Vcc 3 P IC Power Supply EN 4 I Enable Control (Active High) GND 5 P IC Ground I Error Amplifier Inverting Input FB GND Bottom View FB 6 NC 7 LX 8 O Power Switch Output EP 9 P Exposed PAD-Must connect to Ground NA Not Connected EP 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. Rev. 0.71 Website: http://www.feeling-tech.com.tw 2/13 FP6293 SOP-8L(EP) Top View PGND 8 1 2 Vcc 3 EN 4 FP6293 XXx-XXL OC LX 7 NC 6 FB 5 GND Bottom View Name No. I / O Description PGND 1 P IC Ground OC 2 I Adjustable Current Limit (Floating Available) Vcc 3 P IC Power Supply EN 4 I Enable Control (Active High) GND 5 P IC Ground I Error Amplifier Inverting Input FB 6 NC 7 LX 8 O Power Switch Output EP 9 P Exposed PAD-Must connect to Ground NA Not Connected EP 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. Rev. 0.71 Website: http://www.feeling-tech.com.tw 3/13 FP6293 Marking Information DFN-8L FP6293 XXxXXL Halogen Free Lot Number Internal ID Per-Half Month Year SOP-8L FP6293 XXx - XXL 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 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. Rev. 0.71 Website: http://www.feeling-tech.com.tw 4/13 FP6293 Ordering Information Part Number Operating Temperature Package MOQ Description FP6293dR-G1 -40°C ~ 85°C DFN-8L 2500EA Tape & Reel FP6293XR-G1 -40°C ~ 85°C SOP-8L(EP) 2500EA Tape & Reel Absolute Maximum Ratings Parameter Symbol Conditions Min. Typ. Max. Unit Supply Voltage VCC 0 6 V LX Voltage VLX 0 18 V 0 6 V DFN-8L(3x3mm) +68 °C / W SOP-8L(EP) +83 °C / W +150 °C EN,FB Voltage Thermal Resistance (Note1) θJA Junction Temperature TJ Operating Temperature TOP -40 +85 °C Storage Temperature TST -65 +150 °C +260 °C Lead Temperature (soldering, 10 sec) Note1: θJA is measured in the natural convection at T A=25°C on a low effective thermal conductivity test board of JEDEC 51-3 thermal measurement standard. IR Re-flow Soldering Curve 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. Rev. 0.71 Website: http://www.feeling-tech.com.tw 5/13 FP6293 Recommended Operating Conditions Parameter Symbol Supply Voltage VIN Operating Temperature Range TA Conditions Ambient Temperature Min. Max. Unit 2.6 Typ. 5.5 V -40 +85 °C DC Electrical Characteristics (VCC=3.3V, TA=25°C, unless otherwise specified) Parameter Symbol Conditions Min. Typ. Max. Unit 5.5 V System Supply Input Input Supply Range VCC Under Voltage Lockout 2.6 VUVLO 2.2 UVLO Hysteresis V 0.1 V Quiescent Current ICC VFB=0.66V, No switching 0.19 mA Average Supply Current ICC VFB=0.55V, Switching 2.84 mA Shutdown Supply Current ICC VEN=GND 0.1 µA FOSC VFB=1.0V Oscillator Operation Frequency Frequency Change with Voltage 0.8 △ f / △ V VCC=2.6V to 5.5V Maximum Duty Cycle TDUTY 1.0 1.2 MHZ 5 % 90 % Reference Voltage Reference Voltage VREF Line Regulation 0.588 0.6 0.612 0.2 VCC=2.6V～5.5V V %/V Enable Control Enable Voltage VEN Shutdown Voltage VEN 0.96 V 0.6 V MOSFET On Resistance of Driver RDS (ON) ILX=2A 0.14 Ω 3.5 A Protection OCP Current IOCP Adjustable OCP Current IOCP OTP Temperature TOTP With External Resistor： 27k~192k 3.5 0.5 +150 A °C 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. Rev. 0.71 Website: http://www.feeling-tech.com.tw 6/13 FP6293 Typical Operating Characteristics (VCC=3.3V, VOUT=5V, TA= 25°C, unless otherwise noted) Efficiency vs. Output Current 100 95 Efficiency (%) 90 85 80 75 70 0.1 0.3 0.5 0.7 0.9 1.1 1.3 1.5 Freqency (MHz) Output Current (A) Operation Frequency vs. Input Voltage 1.14 1.12 1.1 Operation Frequency 1.08 1.06 1.04 1.08 1.06 1.04 1.02 1.02 VIN =5V, VOUT =9V 1 2 3 4 5 6 -40 -20 0 Input Voltage (V) 40 60 80 100 Reference Voltage vs. Output Current 0.605 0.607 Feedback Voltage (V) 0.606 Reference Voltage (V) 20 T e m p e r a t u r e ( °C ) Reference Voltage vs. Input Voltage 0.605 0.604 0.603 0.602 0.601 0.604 0.603 0.602 0.601 0.6 2 3 4 5 0.6 6 0 0.2 0.4 Input Voltage (V) 0.6 0.8 1 1.2 1.4 1.6 Output Current (A) Quiescent Current vs. Input Voltage Average Supply Current vs. Input Voltage 270 4.5 Average Supply Current (mA) Quiescent Current (uA) vs. T emperature 1.1 Operation Operation Frequency (MHz) 1.16 240 210 180 150 120 4 3.5 3 2.5 2 1.5 1 0.5 2 3 4 5 2 6 3 4 5 6 Input Voltage (V) Input Voltage (V) 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. Rev. 0.71 Website: http://www.feeling-tech.com.tw 7/13 FP6293 Function Description Operation The FP6293 is a current mode boost converter. The constant switching frequency is 1MHz and operates with pulse width modulation (PWM). Build-in 18V / 3.5A MOSFET provides a high output voltage. The control loop architecture is peak current mode control; therefore slope compensation circuit is added to the current signal to allow stable operation for duty cycles larger than 50%. Soft Start Function Soft start circuitry is integrated into FP6293 to avoid inrush current during power on. After the IC is enabled, the output of error amplifier is clamped by the internal soft-start function, which causes PWM pulse width increasing slowly and thus reducing input surge current. Current Limit Program A resistor between OC and GND pin programs peak switch current. The resistor value should be between 27k and 192k. The current limit will be set from 3.5A to 0.5A. Keep traces at this pin as short as possible. Do not put capacitance at this pin. To set the over current trip point according to the following equation: IOCP = 96000 R3 Over Temperature Protection (OTP) FP6293 will turn off the power MOSFET automatically when the internal junction temperature is over 150°C. The power MOSFET wake up when the junction temperature drops 30 °C under the OTP threshold temperature. Over Voltage Protection (OVP) In some condition, the resistive divider may be unconnected, which will cause PWM signal to operate with maximum duty cycle and output voltage is boosted higher and higher. The power MOSFET will be turned off immediately, when the output voltage exceeds the OVP threshold level. The FP6293’s OVP threshold is 16V. 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. Rev. 0.71 Website: http://www.feeling-tech.com.tw 8/13 FP6293 Application Information Inductor Selection Inductance value is decided based on different condition. 3.3uH to 4.7µH inductor 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. Also, it avoid inductor saturation which will cause circuit system unstable and lower core loss at 1 MHz. Capacitor Selection The output capacitor is required to maintain the DC voltage. 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: R1   VOUT  0.6V1    R2  Layout Considerations 1. The power traces, consisting of the GND trace, the LX trace and the VCC trace should be kept short, direct and wide. 2. LX、L and D switching node, wide and short trace to reduce EMI. 3. Place CIN near VCC pin as closely as possible to maintain input voltage steady and filter out the pulsing input current. 4. The resistive divider R1and R2 must be connected to FB pin directly as closely as possible. 5. FB is a sensitive node. Please keep it away from switching node, LX. 6. The GND of the IC, CIN and COUT should be connected close together directly to a ground plane. 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. Rev. 0.71 Website: http://www.feeling-tech.com.tw 9/13 FP6293 Vin L1 VIA to GND 1 8 2 7 Vout R3 3 FP6293 4 C1 D1 6 R1 5 C2 C3 C4 C5 R2 GND Suggested Layout 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. Website: http://www.feeling-tech.com.tw Rev. 0.71 10/13 FP6293 Typical Application L1 3.3µH D1 SR54 VIN 3.7V VOUT 5V C1 22µF R1 73K C2 22µF 1 2 LX OC NC 8 C3 22µF C4 22µF C5 100µF R2 10K 7 FP6293 R3 27K 3 4 Note: PGND VCC FB EN GND 6 5 Don’t pull the Vout back to the FP6293’s Vcc pin. When the system receives the noise, it will lead to Vout ripple too high and over the absolute maximum rating of the Vcc pin. 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. Website: http://www.feeling-tech.com.tw Rev. 0.71 11/13 FP6293 Package Outline DFN-8L Unit: mm Symbols Min. (mm) Max. (mm) A 0.700 0.800 A1 0.000 0.050 A3 b 0.20REF 0.25 0.35 D 3.000 BSC E 3.000 BSC e 0.650 BSC K 0.200 - Symbols Min. (mm) Max. (mm) E2 1.600 1.800 D2 1.900 2.050 L 0.350 0.450 Exposed PAD Dimensions: Note: 1. Package dimensions are in compliance with JEDEC outline: MO-229 2. Dimension b applied to metalized terminal and is measured between 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. 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. Website: http://www.feeling-tech.com.tw Rev. 0.71 12/13 FP6293 SOP-8L(EP) UNIT: mm 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° Exposed PAD Dimensions: Symbols Min. (mm) Max. (mm) E1 2.184 REF D1 2.971 REF 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. 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. Website: http://www.feeling-tech.com.tw Rev. 0.71 13/13