FP6201DR-LF

FP6201 Switching Boost Regulator General Description The FP6201 is a boost topology switching regulator for wide operating voltage applications. The FP6201 includes a high current N-MOSFET, a high precision reference (0.5V) for comparing output voltage with feedback amplifier, an internal dead-time control and oscillator for controlling the maximum duty cycle and PWM frequency. It also has power on programmable soft start time, short circuit NMOS turn-off and auto re-start protection functions. Features  Wide Supply Voltage Operating Range: 3.6 to 20V  Built-in N-MOSFET for 2A Loading Capability  Precision Feedback Reference Voltage: 0.5V (2%)  Internal Fixed Oscillator Frequency: 320KHz (Typ.)  Low Current Consumption: 3mA  Programmable Soft-Start Function (SS)  Short Circuit Shutdown and Auto Re-start Function(ARSCP)  Output Adjustable to 20V  Over Current Protection  Package: SOP-8L Typical Application 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. 0.91 Website: http://www.feeling-tech.com.tw 1/12 FP6201 Function Block Diagram LX VCC Reference Regulator LX Oscillator Thermal Shuntdown 1.25V FB 36 KΩ Output Drive Control Circuits 50 0Ω 0.5V 0.7V COMP Soft Start & Auto Re-start S.C.P. Circuits GND SS / SCP GND Pin Descriptions SOP-8L Name No. I / O Top View 1 8 LX SS / SCP 2 7 LX FB 3 6 GND COMP 4 5 GND FP6201 9Fa-86L VCC VCC SS / SCP FB Description 1 P 2 I 3 I IC Power Supply Connecting with a Soft-start & ARSCP Timing Capacitor Error Amplifier Inverting Input COMP 4 O Error Amplifier Compensation Output GND 5 P IC Ground GND 6 P IC Ground LX 7 O Switch Output LX 8 O Switch Output 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. 0.91 Website: http://www.feeling-tech.com.tw 2/12 FP6201 Marking Information SOP-8L FP6201 - 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: 132386TB  86 Internal ID: Internal Identification Code Per-Half Month: Production period indicated in half month time unit For Example: January → A (Front Half Month), B (Last Half Month) February → C (Front Half Month), D (Last Half Month) 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. 0.91 Website: http://www.feeling-tech.com.tw 3/12 FP6201 Ordering Information Part Number Operating Temperature Package MOQ Description -40°C ~ +85°C SOP-8L 2500EA Tape & Reel FP6201DR-LF Absolute Maximum Ratings Parameter Symbol Power Supply Voltage Conditions Min. Typ. VCC NMOS Drain Sink Current LX to GND VLX Error Amplifier Inverting Input VFB -0.3 Max. Unit +20 V +3 A 20 V 1.2 V 650 mW Allowable Dissipation (SOP-8L ) Thermal Resistance Junction to Ambient Thermal Resistance Junction to Case θJA +175 °C / W θJC +55 ℃/W Storage Temperature TS +125 ℃ TA≦+25℃ ESD Susceptibility -55 HBM (Human Body Mode) MM (Machine Mode) Lead Temperature (soldering, 10 sec) 2 KV 200 V +260 ℃ 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. 0.91 Website: http://www.feeling-tech.com.tw 4/12 FP6201 Recommended Operating Conditions Parameter Symbol Supply Voltage Conditions Vcc Operating Temperature Min. Typ. Max. Unit 3.6 +20 V -10 +85 ℃ DC Electrical Characteristics (VIN=20V, TA= 25℃, unless otherwise noted) Parameter Symbol Test Conditions Min. Typ. Max. Unit COMP connected to FB 0.490 0.5 0.510 V mV Reference Output Voltage VREF Input Regulation △VREF VCC＝3.0 V to 20 V 2 12.5 Output Voltage Change with Temperature △VREF / TA＝-10℃ to 25℃ VREF TA＝ 25℃ to 85℃ 1 2 1 2 -15 -10 -7 μA 0.8 0.9 1.0 V -15 -10 -7 μA % Soft Start Section (S.S.) S.S. Source Current ISS Soft Start Threshold Voltage VSS= 0V VSST Short Circuit Protection Section (S.C.P.) S.C.P. Source Current ISCP TRS / THOLD VSCP SCP re-start / Hold Time S.C.P. Threshold Voltage VSB VSCP= 0V VCOMP >0.8V Vcomp > 450mV 1 / 10 0.9 Vcomp < 450mV 1.0 1.1 0.1 0.15 V Oscillator Section Oscillation Frequency Frequency Change with Voltage Frequency Change with Temperature f 320 KHz Δf / ΔV VCC=4V to 15V 5 % Δf / ΔT TA =-10℃ to +85℃ 5 % +145 ℃ Thermal Shutdown Section Thermal Shutdown Temperature Error Amplifier Section Input Bias Current IB -1.0 Voltage Gain Av Frequency Bandwidth BW Av=0 dB Output Voltage Swing ( Positive) VPOS VFB=0.3V Output Voltage Swing ( Negative) VNEG VFB=0.7V Output Source Current ISOURCE Vcomp=500mV Output Sink Current ISINK Vcomp=500mV TDUTY VFB =0.2V 0.78 -0.2 1.0 μA 100 V/V 6 MHz 0.87 V 0.05 0.2 V -30 -45 μA 30 45 μA 88 % Idle Period Adjustment Section Maximum Duty Cycle Total Device Section Average Supply Current IAVE 3.8 7 mA 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. 0.91 Website: http://www.feeling-tech.com.tw 5/12 FP6201 Parameter Symbol Test Conditions Min. Typ. Max. Unit Output Section NMOS D-S Voltage VDSS 60 V NMOS Source Current ID -2 A NMOS on Resistance RDS (ON) Output Leakage Current IL VCC=4.5V, V FB=0V 49 64 VCC=10V, V FB=0V 33 41 SCP Active 5 μA 3 A mΩ Over Current Protection Section NMOS OCP Current IOCP 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. 0.91 Website: http://www.feeling-tech.com.tw 6/12 FP6201 Typical Operating Characteristics (VIN=7V, TA=25°C , unless otherwise noted) R e fe re n c e O u tp u t V o tl a g e V S T e m p e ra tu re 0.507 0.505 0.506 Reference Output Voltage (V) (V) P o w e r S u p p l y V o lt a g e V S R e fe re n c e O u tp u t V o lt a g e 0.506 Reference Output Voltage 0.504 0.503 0.502 0.501 0.5 0.499 0.498 0.505 0.504 0.503 0.502 0.501 0.5 0.499 0.498 -2 5 ℃ 0.497 3.6 6 10 12 15 17 25℃ 20 P o w e r S u p p ly V o lt a ge ( V ) Figure 1 326 334 322 328 318 314 310 306 302 316 310 304 298 292 294 286 280 -2 5 ℃ 290 12 15 17 20 25℃ Figure 3 0.6 0.9 Output Voltage (V) Effciency (%) 1.2 0.3 1.5 0.6 Figure 5 3.7 3.5 3.3 3.1 OCP (A) OCP (A) 1.5 Figure 6 3.9 2.9 2.7 2.5 2.3 2.1 1.9 1.7 1.5 9 12 P o w e r S u p p l y (V ) 1.2 O C P V S T e m p a t u re 4.1 7 0.9 O u t p u t C u rre n t (A ) P o w e r S u p p ly V S O C P 5.5 100℃ 95.00% 94.00% 93.00% 92.00% 91.00% 90.00% 89.00% 88.00% 87.00% 86.00% 85.00% 84.00% 83.00% O u t p u t C u rre n t (A ) 5 85℃ E ffc i e n c y V S O u t p u t C u rre n t VCC=10V,VOUT=3.3V VCC=10V,VOUT=5.0V 0.3 65℃ Figure 4 O u tu p t L o a d R e g u la tio n 0 45℃ T e m p e ra t u re (℃ ) P o w e r S u p p l y V o l t a g e (V ) 16.5 16 15.5 15 14.5 14 13.5 13 12.5 12 11.5 11 10.5 10 100℃ 322 298 10 85℃ O s c i l l a t o r F re q u e n c y V S T e m p e ra t u re 340 Oscillator Frequency (KHz) Oscillator Frequency (KHz) O s c i l l a t o r F re q u e n c y V S P o w e r S u p p l y V o l t a g e 6 65℃ Figure 2 330 3.6 45℃ T em p er atu re ( ℃ ) 15 18 4.4 4.2 4 3.8 3.6 3.4 3.2 3 2.8 2.6 2.4 2.2 2 1.8 1.6 1.4 1.2 1 -1 0 20              Figure 7 25 50 T e m p a t u r e (℃ ) 70 85   Figure 8 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. 0.91 Website: http://www.feeling-tech.com.tw 7/12 FP6201 Timing Waveform 3.6V VCC VARSCP VSST ARSCP Charge Current S.S / ARSCP Soft Start Stage COMP Tre Hold Stage Soft Start Stage 0.8V ~ ~ OSC ~ ~ Restart Timing Restart Timing ~ ~ LX ~ ~ VARSCP ARSCP Charge Current ARSCP Tre Hold Stage OSC LX 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. 0.91 Website: http://www.feeling-tech.com.tw 8/12 FP6201 Application Information Voltage Reference The FP6201 includes a 1.25V reference voltage generator. This voltage is connected to a resistive divider to generate a 0.5V precision reference voltage to the non-inverting input of error amplifier and 1.0V to the SCP comparator. Error Amplifier The error amplifier compares a sample of the DC-DC converter’s output voltage with the 0.5V (VREF) reference and generates an error signal for the PWM comparator. Output voltage of DC-DC converter is setting by the resistor divider with the following equation (figure 9): R1   VOUT  1    VREF R2   VOUT T Error Amplifier R1 3 36KO R2 0.5V 500O FP6201 4 C1 Figure 9 Error Amplifier with Feedback Resistance Divider 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. 0.91 Website: http://www.feeling-tech.com.tw 9/12 FP6201 Oscillator The fixed PWM frequency is generated by an internal RC oscillator. Its typical value is 320KHz. Soft Start / Short-Circuit Protection (S.S. / S.C.P.) The soft start is enabled after power on. The interval of soft start time is determined by a capacitor connected to SCP pin. After the soft start finished, the internal soft start clamp voltage is setting high, but the external SCP pin is discharged to low. Thus FP6201 turns on short circuit detection / protection function. The time of soft start is: Tss(ms )  0.07  C(F) When a heavy loading or short circuit condition make output voltage to drop too much, the error amplifier output will rise to very high. Once COMP pin voltage exceeds VPOS (typ. 1.0V), the short circuit protection function is triggered. The output switching MOS will be turned off. The SCP capacitor will be charged until it potential exceeds SCP threshold voltage (typ. 1.2V) and then discharged to ground. The time of short circuit protection is: TSCP  V  C SCP VTH  VSSStart   C SCP   0.09  CSCP(F) I Isource Restart timing of short circuit protection is: Tscp  1.8  CF Thermal Protection When a heavy loading makes chip internal temperature exceeds 145°C, the thermal protection function is triggered. The FP6201 turns off its output and starts Short Circuit Protection function. After the IC internal temperature is cooled down to below 145°C, it will turn on the output and execute Soft-Start function again. Over Current Protection When FP6201 senses driver current larger than 3A, it will initiate OCP function and enters ARSCP function. After current drops below 3A, FP6201 turns on the output and continues PWM operation. 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. 0.91 Website: http://www.feeling-tech.com.tw 10/12 FP6201 Typical Application FP6201 Basic DC-DC Regulator Circuit For example: The VIN power supply is 5.0V and the VOUT is designed for 12V / 0.5A solution. The output voltage equation is:  R  56KΩ   VOUT  1 1   VFB  1   0.5V  12.02V  2.43KΩ   R2  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. 0.91 Website: http://www.feeling-tech.com.tw 11/12 FP6201 Package Outline SOP-8L UNIT: mm Symbols Min. (mm) Max. (mm) A 1.346 1.752 A1 0.101 0.254 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° 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. Rev. 0.91 Website: http://www.feeling-tech.com.tw 12/12