AP3039

Data Sheet BOOST CONTROLLER General Description AP3039 is a current mode high voltage low-side Nchannel MOSFET controller which is ideal for boost regulators. It contains all the features needed to implement single ended primary topology DC/DC converters. The input voltage range of AP3039 is from 5V to 27V. Its operation frequency is adjustable from 200kHz to 1MHz. The AP3039 has UVLO (Under Voltage Lock Out) circuit. It uses two external resistors to set the UVLO voltage. The AP3039 also has an over output voltage protection to limit the output voltage. The OVP voltage can be set through external resistors. If the output voltage is higher than the OVP high threshold point, it will disable the driver, when the output voltage drops to the OVP low threshold point, it will enable the driver. It also features a soft start to reduce the inrush current when power on, the soft start time can be set through an external capacitor. The AP3039 is available in QFN-3x3-16 and SOIC-14 packages. AP3039 Features · · · · · · · · · Input Voltage Range 5V to 27V 0.6A Peak MOSFET Gate Driver 20ns Quick MOSFET Gate Driver Duty Cycle Limit of 90% Programmable UVLO Programmable Over Voltage Protection Cycle by Cycle Current Limit Adjustable Soft-Start Adjustable Operation Frequency from 200kHz to 1MHz Applications · · · LED Lighting Notebook LCD Display Modules QFN-3x3-16 SOIC-14 Figure 1. Package Types of AP3039 Dec. 2009 Rev. 1. 4 1 BCD Semiconductor Manufacturing Limited Data Sheet BOOST CONTROLLER Pin Configuration FN Package (QFN-3x3-16) Pin 1 Dot by Marking OV UVLO SS COMP 16 15 14 13 12 AP3039 EN VIN NC VCC 1 2 3 4 5 6 7 8 NC FB SHDN AGND EP 11 10 9 Exposed PAD OUT PGND RT CS M Package (SOIC-14) UVLO OV EN VIN VCC OUT PGND 1 2 3 4 5 6 7 14 13 12 11 10 9 8 SS COMP FB SHDN AGND CS RT Figure 2. Pin Configuration of AP3039 (Top View) Dec. 2009 Rev. 1. 4 2 BCD Semiconductor Manufacturing Limited Data Sheet BOOST CONTROLLER Pin Description Pin Number 16-pin 1 2 3, 12 14-pin 3 4 Pin Name EN VIN NC Enable pin Input supply pin, must be locally bypassed No connection (for QFN-3x3-16 package only) 6V linear regulator output pin. VCC is used to bias the gate driver for the external MOSFET. If VIN is less than 8.5V, the VCC is equal to VIN minus drop voltage across bypass switch. If VIN is less than 6V, connect VCC to VIN. This pin should be bypassed to GND (recommend to connect with AGND pin) with a ceramic capacitor Connect this pin to the gate of external MOSFET, the gate driver has 0.6A peak current capability Power ground An external resistor connected from this pin to GND to set the operating frequency Sense switch current pin, which is used for current mode control and for current limit Reference ground This pin can be connected to current matched chip and receives error signal used to shut down the system Voltage Feedback Pin. The reference voltage is 500mV Compensation Pin. This pin is the output of the internal Error Amplifier An external soft start time capacitor is connected from this pin to ground and is charged by internal 12µA current source to control regulator soft start time Two resistors connected from this pin to ground and the VIN pin respectively to set start up and shutdown level Over output voltage protection pin Exposed backside pad. Solder to the circuit board ground plane with sufficient copper connection to ensure low thermal resistance (for QFN-3x3-16 package only) Function AP3039 4 5 VCC 5 6 7 8 9 10 11 13 14 15 16 6 7 8 9 10 11 12 13 14 1 2 OUT PGND RT CS AGND SHDN FB COMP SS UVLO OV EP Dec. 2009 Rev. 1. 4 3 BCD Semiconductor Manufacturing Limited Data Sheet BOOST CONTROLLER Functional Block Diagram AP3039 REFERENCE 1.25V BYPASS SWITCH REGULATOR VIN EN UVLO 2 (4) 1 (3) 15 (1) 1.25V 4 (5) 3V VCC EN REFERENCE R 22µA CLK S Q 5 (6) DRIVER OUT PGND CS 6 (7) 110mV OV 16 (2) 1.25V 22µA LOGIC LEB 8 (9) + SHDN 10 (11) SAW Σ + 13 (13) OSTD 0.5V EA 12µA COMP 11 (12) 14 (14) FB SS AGND RT 7 (8) OSL CLK 9 (10) SAW A (B) A QFN-3x3-16 B SOIC-14 Figure 3. Functional Block Diagram of AP3039 Dec. 2009 Rev. 1. 4 4 BCD Semiconductor Manufacturing Limited Data Sheet BOOST CONTROLLER Ordering Information AP3039 Circuit Type Package FN: QFN-3x3-16 M: SOIC-14 Package QFN-3x3-16 SOIC-14 -40 to 85 C o AP3039 G1: Green TR: Tape and Reel Blank: Tube Temperature Range Part Number AP3039FNTR-G1 AP3039M-G1 AP3039MTR-G1 B2A Marking ID 3039M-G1 3039M-G1 Packing Type Tape & Reel Tube Tape & Reel BCD Semiconductor's products, as designated with "G1" suffix in the part number, are RoHS compliant and Green. Dec. 2009 Rev. 1. 4 5 BCD Semiconductor Manufacturing Limited Data Sheet BOOST CONTROLLER Absolute Maximum Ratings (Note 1) Parameter Input Voltage VCC Pin Voltage OUT Pin Voltage Feedback Pin Voltage UVLO Pin Voltage CS Pin Voltage SHDN Pin Voltage Enable Pin Voltage OV Pin Voltage Thermal Resistance (Junction to Ambient, no Heat sink) Operating Junction Temperature Storage Temperature Range Lead Temperature (Soldering, 10sec) ESD (Machine Model) ESD (Human Body Model) Symbol VIN VCC VOUT VFB VUVLO VCS VSHDN VEN VOV θJA TJ TSTG TLEAD QFN-3x3-16 SOIC-14 150 -65 to 150 260 200 2000 Value 30 10 10 7 7 7 7 VIN 7 60 102 Unit V V V V V V V V V oC/W oC oC o AP3039 C V V Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability. Recommended Operating Conditions Parameter Symbol Min Max Unit Input Voltage Operating Frequency Operating Temperature VIN f TA 5 200 -40 27 1000 85 V kHz oC Dec. 2009 Rev. 1. 4 6 BCD Semiconductor Manufacturing Limited Data Sheet BOOST CONTROLLER Electrical Characteristics (VIN=12V, VEN =VIN, TA=25oC, unless otherwise specified.) Parameter Input Voltage Symbol VIN Conditions VCC=VIN VCC bypassed to GND through a 0.47µF capacitor Min 5 6 490 500 35 No switching VEN=0V 9V≤VIN≤27V 6V≤VIN