FP7209MR-G1

FP7209 Non-Synchronous PWM Boost Controller for LED Driver General Description The FP7209 is boost topology switching regulator for LED driver. It provides built-in gate driver pin for driving external N-MOSFET. The non-inverting input of error amplifier connects to a 0.25V reference voltage. It has programmable soft start time and switching frequency set by external capacitor and resistor. There are four functions to protect system circuit like UVP, OVP, SCP and OCP. The LED current can be adjusted by an external signal connecting to the DIM pin. DIM pin accepts either a DC voltage or a PWM signal. The PWM signal filter components are contained within the chip. Current mode control and external compensation network make is easy and flexible to stabilize the system. The FP7209 is available in the small footprint SOP-8L(EP) and TSSOP-14L(EP) packages to fit in space-saving PCB layout for application fields. Features  Start-up Voltage: 2.8V  Wide Supply Voltage Operating Range: 5V to 24V  Precision Feedback Reference Voltage: 0.25V (Max.)  Analog and Digital Dimming Control  Shutdown Current: 6μA (Max.)  Programmable Switching Frequency: 100KHz~1000KHz  Programmable Soft Start Function (SS)  Input Under Voltage Protection (UVP)  Output Over Voltage Protection (OVP)  LED Short Circuit Protection (SCP)  Switching MOSFET Over Current Protection (OCP)  Over Temperature Protection (OTP)  Package: SOP-8L(EP), TSSOP-14L(EP) Applications  LED Module  Display Backlight  Car Lighting  Portable LED Lighting This datasheet contains new product information. Advanced Analog 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. 0.64 1/23 FP7209 Typical Application Circuit VLED VIN VDS EXT DIM HVDD FP7209 CS COMP FB GND OVP VLED VIN VDS EXT DIM GND EN GND FP7209 COMP HVDD FB CS OVP SC RT SS This datasheet contains new product information. Advanced Analog 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. 0.64 2/23 FP7209 Function Block Diagram COMP OVP Error Amp. LDO OVP OTP VDDI 4.5V Thermal Regulation Max. 0.25V DIM UVLO 0.7V Soft Start FB HVDD Dimming Control VREF VDS = 8V LDO Control and Driver Logic PWM Comp. EXT OCP 0.1V CS Slope Compensation Oscillator 150KHz VDS GND Current Sense Amp. COMP 0.4V SS Error Amp. HVDD UVLO 0.7V Soft Start FB LDO OVP OTP Max. 0.25V DIM Dimming Control EN Shutdown Circuitry RT OVP SCP Oscillator 100KHz~1000KHz VDDI 4.5V Thermal Regulation VREF VDS = 8V LDO Control and Driver Logic PWM Comp. VDS EXT OCP Slope Compensation 0.1V CS GND Current Sense Amp. SCP HICCUP SC This datasheet contains new product information. Advanced Analog 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. 0.64 3/23 FP7209 Pin Descriptions SOP-8L(EP) Top View 1 8 EXT DIM 2 7 HVDD COMP 3 6 CS FB 4 FP7209 XXx-XXL VDS OVP 5 Bottom View EP (GND) Name No. I/O DIM 2 I Description Power Supply for Internal Control Circuits and Gate Drivers Analog and Digital Dimming Control VDS 1 P COMP 3 O Compensation FB 4 I Error Amplifier Inverting Input OVP 5 I Over Voltage Protection CS 6 I MOSFET Switch Current Sense HVDD 7 P IC Power Supply EXT 8 O GND 9(EP) P Gate Driver Output IC Ground (Exposed PAD) – Must Connect to Ground Name No. I/O VDS 1 P DIM 2 I Description Power Supply for Internal Control Circuits and Gate Drivers Analog and Digital Dimming Control TSSOP-14L(EP) Top View 1 DIM 2 EN 3 COMP 4 FB 5 OVP 6 RT 7 FP7209 XXx- XXL VDS Bottom View EP 14 EXT 13 GND 12 GND EN 3 I Enable Control 11 HVDD COMP 4 O Compensation 10 CS FB 5 I Error Amplifier Inverting Input OVP 6 I Over Voltage Protection RT 7 I Frequency Programming 9 SC 8 SS SS 8 I Soft Start Programming SC 9 O LED Short Circuit Control CS 10 I MOSFET Switch Current Sense HVDD 11 P IC Power Supply GND 12 P IC Ground GND 13 P IC Ground EXT 14 O Gate Driver Output EP 15 - Exposed PAD Connect to Ground This datasheet contains new product information. Advanced Analog 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. 0.64 4/23 FP7209 Marking Information SOP-8L(EP) FP7209 XXx-XXL Halogen Free Lot Number Internal ID Per - Half Month Year TSSOP-14L(EP) FP7209 XXx-XXL Halogen Free Lot Number Internal ID Per -Half Month Year Halogen Free: Halogen free product indicator Lot Number: Wafer lot number's code 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. Advanced Analog 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. 0.64 5/23 FP7209 Ordering Information Part Number Operating Temperature Package MOQ Description FP7209XR-G1 -40°C ~ +85°C SOP-8L(EP) 2500EA Tape & Reel FP7209mR-G1 -40°C ~ +85°C TSSOP-14L(EP) 2500EA Tape & Reel Absolute Maximum Ratings Symbol Conditions Min. Typ. Max. Unit HVDD - -0.3 - 26 V VDS,SC,EXT Voltage - - -0.3 - 16 V Others Pin Voltage - - -0.3 - 6 V SOP-8L(EP) - - +60 °C / W TSSOP-14L(EP) - - +55 °C / W SOP-8L(EP) - - +10 °C / W TSSOP-14L(EP) - - +9 °C / W Parameter Supply Voltage Thermal Resistance (Junction to Ambient) θJA Thermal Resistance (Junction to Case) θJC Junction Temperature TJ - - - +150 °C Operating Temperature TOP - -40 - +85 °C Storage Temperature TST - -65 - +150 °C - (soldering, 10 sec) - - +260 °C Lead Temperature IR Re-flow Soldering Curve This datasheet contains new product information. Advanced Analog 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. 0.64 6/23 FP7209 Recommended Operating Conditions Parameter Symbol Conditions Min. Typ. Max. Unit HVDD - 5 - 24 V TA Ambient Temperature -40 - +85 °C Supply Voltage Operating Temperature Range DC Electrical Characteristics (HVDD=12V, TA=25°C, unless otherwise specified) Parameter Symbol Conditions Min. Typ. Max. Unit System Supply Input Start-up Voltage HVDD 2.8 Input Supply Range HVDD 5 Under Voltage Lockout VUVLO V 24 2.6 UVLO Hysteresis Average Current ICC FB=0V, Switching Quiescent Current ICC FB=0.3V, No Switching Shutdown Current ICC VEN=0V or VDIM=0V Input Supply Voltage VDS HVDD=12V, IDS=0A 7.5 RT=NC RT=51KΩ V V 0.2 V 2 mA 800 µA 6 µA 8.0 8.5 V 120 150 180 KHZ 320 370 420 KHZ Oscillator Operation Frequency fOSC Maximum Duty Ratio % FB=0V 90 % ISS Vss=0V 3.5 µA 0.275 V Soft Start Soft-Start bias Current DIM Voltage DIM Start-up Voltage Vst_up VEN>1.5V, Switching DIM Shutdown Voltage VDIM VEN>1.5V, ICC