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1、FP6293 1MHz, 3.5A Step-Up Current Mode PWM Converter 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 sa
2、les of the product. Website: http:/www.feeling-.tw Rev. 0.71 1/13 General Description The FP6293 is a current mode boost DC-DC converter. Its PWM circuitry with built-in 0.14 power MOSFET make this regulator highly power efficient. The internal compensation network also minimizes as much as 6 extern
3、al 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 A
4、djustable Output up to 13V Internal Fixed PWM frequency: 1.0MHz Precision Feedback Reference Voltage: 0.6V (2%) Internal 0.14, 3.5A, 18V Power MOSFET Shutdown Current: 0.1A Over Temperature Protection Over Voltage Protection Adjustable Over Current Protection: 0.5A 3.5A Package: DFN-8L, SOP-8L(EP) A
5、pplications Chargers LCD Displays Digital Cameras Handheld Devices Portable Products Typical Application Circuit 7 6 5 8 2 3 4 1 FP6293 OC VCC ENGND FB PGNDLX NC VOUTVIN FP6293 This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification
6、 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-.tw Rev. 0.71 2/13 Function Block Diagram PWM Comp. Error Amp. . Current Sense Amp. Control and Driver Logic OTP Oscillator Slope
7、 Compensation PGND LX VCCEN UVLO Shutdown Circuitry FB 0.6V 1 MHz Soft Start GND Adjustable Current Limit OC 27k 192k 3.5A 0.5A OVP Pin Descriptions DFN-8L FP6293 XXxXXL EP Top View Bottom View EP PGND EN OC Vcc LX GND NC FB Name No. I / O Description PGND 1 P IC Ground OC 2 I Adjustable Current Lim
8、it (Floating Available) Vcc 3 P IC Power Supply EN 4 I Enable Control (Active High) GND 5 P IC Ground FB 6 I Error Amplifier Inverting Input NC 7 NA Not Connected LX 8 O Power Switch Output EP 9 P Exposed PAD-Must connect to Ground FP6293 This datasheet contains new product information. Feeling Tech
9、nology 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-.tw Rev. 0.71 3/13 SOP-8L(EP) 1 2 3 4 8 7 6 5 XXx-XXL EP Top View B
10、ottom View FP6293 EN PGND OC Vcc LX GND NC FB 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 FB 6 I Error Amplifier Inverting Input NC 7 NA Not Connected LX 8 O Power Swi
11、tch Output EP 9 P Exposed PAD-Must connect to Ground FP6293 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
12、 the sales of the product. Website: http:/www.feeling-.tw Rev. 0.71 4/13 Marking Information DFN-8L Halogen Free Lot Number Internal ID Per-Half Month Year FP6293 XXxXXL SOP-8L Halogen Free Lot Number Internal ID Per-Half Month Year FP6293 XXx-XXL Halogen Free: Halogen free product indicator Lot Num
13、ber: Wafer lot numbers 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 Hal
14、f Month of February Year: Production years last digit FP6293 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 accompan
15、y the sales of the product. Website: http:/www.feeling-.tw Rev. 0.71 5/13 Ordering Information Part Number Operating Temperature Package MOQ Description FP6293dR-G1 -40C 85C DFN-8L 2500EA Tape therefore slope compensation circuit is added to the current signal to allow stable operation for duty cycl
16、es 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
