AP2001 MONOLITHIC DUAL CHANNEL PWM CONTROLLER General Description Features • • • • • • • • • The AP2001 integrates Pulse-width-Modulation (PWM) control circuit into a single chip, mainly designed for power-supply regulator. All the functions included are an on-chip 2.5V reference output, two error amplifiers, an adjustable oscillator, two dead-time comparators, UVLO, SCP, DTC circuitry, and dual common-emitter (CE) output transistor circuit. Dual PWM control circuitry Operating voltage can be up to 40V Adjustable Dead Time Control (DTC) Under Voltage Lockout (UVLO) protection Short Circuit Protection (SCP) Variable oscillator frequency: 500KHz Max 2.5V voltage reference output SOP-16L package Lead Free Finish/RoHS Compliant for Lead Free products (Note 1) Recommend the output CE transistors as pre-driver for Driving externally. The DTC can provide from 0% to 100%. Switching frequency can be adjustable by trimming RT and CT. During low VCC situation, the UVLO makes sure that the outputs are off until the internal circuit is operating normally. Applications • • Backlight inverter DC/DC converts in computers, etc. Ordering Information AP 2001 X X X Note: Lead Free S : SOP-16L L : Lead Free Package (Note 2) - U : Tube - 13 : Taping 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7. Device Lead-free Note: Packing Package AP2001S Tube Package Packaging Part Number Code (Note 2) Quantity Suffix S SOP-16L 50 -U 13” Tape and Reel Quantity Part Number Suffix 2500/Tape & Reel -13 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. AP2001 Rev. 2 1 of 8 www.diodes.com DECEMBER 2006 © Diodes Incorporated AP2001 MONOLITHIC DUAL CHANNEL PWM CONTROLLER Pin Assignments ( Top View ) CT 1 16 RT EA1+ EA1FB1 2 15 3 14 4 13 5 12 DTC 1 O UT1 GND 6 11 7 10 8 9 R EF SC P EA2+ EA2FB2 DTC 2 O UT2 VCC SO P-16L Pin Descriptions Name CT RT EA+ EA FB DTC OUT GND VCC SCP REF AP2001 Rev. 2 Description Timing Capacitor Timing Resistor Error Amplifier Input(+) Error Amplifier Input(-) Feedback Loop Compensation Dead Time Control Pre-driver Output Ground Supply Voltage Short Circuit Protection Voltage Reference 2 of 8 www.diodes.com DECEMBER 2006 © Diodes Incorporated AP2001 MONOLITHIC DUAL CHANNEL PWM CONTROLLER Block Diagram VCC SCP RT Bandgap Reference REF CT DTC1 Oscillator MAX.500KHz + + - EA1 + EA1 - OUT1 VREF Error Amplifier 1 PWM Amplifier 1 170K FB1 1.18V + + R UVLO R S EA2+ + + EA2 Error Amplifier 2 OUT2 PWM Amplifier 2 FB2 GND DTC2 Absolute Maximum Ratings Symbol Rating Unit Supply Voltage 40 V VI Amplifier Input Voltage 20 V VO Collector Output Voltage 40 V Io Collector Output Current 21 mA VCC TOP TST TLEAD Parameter Operating Temperature Range Storage Temperature Range Lead Temperature 1.6 mm (1/16 inch) from Case for 5 Seconds AP2001 Rev. 2 3 of 8 www.diodes.com -20 to +85 o -65 to +150 o 245 o C C C DECEMBER 2006 © Diodes Incorporated AP2001 MONOLITHIC DUAL CHANNEL PWM CONTROLLER Recommended Operating Conditions Symbol VCC VI VO IO IFB RF CT RT FOSC TOP Parameter Min. 3.6 1.05 Supply Voltage Amplifier Input Voltage Collector Output Voltage Collector Output Current Current into Feedback Terminal Feedback Resistor Timing Capacitor Timing Resistor Oscillator Frequency Operating Free-air Temperature Max. 40 1.45 40 20 45 100 150 5.1 1 -20 Unit V V V mA µA kΩ pF kΩ KHz ºC 15000 100 500 85 Electrical Characteristics (TA = 25ºC, VCC = 6V, f = 200 KHz) Reference (REF) Symbol Parameter Output Voltage (pin 16) VO Output Voltage Change with Temperature VDLI Input Stability VDLO Output Stability IO Short-circuit Output Current Under voltage lockout (UVLO) Symbol Parameter VUT Upper Threshold Voltage (VCC) VLWT Lower Threshold Voltage (VCC) VHT Hysteresis (VCC) AP2001 Rev. 2 Conditions IO = 1mA TA = -20ºC ~ 25ºC TA = 25ºC ~ 85ºC VCC = 3.6V ~ 40V IO = 0.1 mA ~ 1mA VO = 0 Conditions IO(REF) = 0.1mA TA = 25ºC 4 of 8 www.diodes.com Min. 2.4 3 Min. 80 Typ. 2.5 -0.1 -0.2 2 1 10 Max. 2.6 ±1 ±1 12.5 7.5 30 Unit V % % mV mV mA Typ. 2.65 2.45 200 Max. Unit V V mV DECEMBER 2006 © Diodes Incorporated AP2001 MONOLITHIC DUAL CHANNEL PWM CONTROLLER Electrical Characteristics ( Continued ) Short-circuit protection (SCP) control Symbol Parameter Conditions VIT Input Threshold Voltage TA = 25ºC VSTB Standby Voltage No pull up VLT Latched Input Voltage No pull up ISCP Input (Source) Current VI = 0.7V, TA = 25ºC VCT Comparator Threshold Voltage (FB) Oscillator (OSC) Symbol Parameter Conditions FOSC Frequency CT = 330 pF, RT = 10 KΩ Standard Deviation of Frequency CT = 330 pF, RT = 10 KΩ Frequency Change with Voltage VCC = 3.6V ~ 40V ∆FOSC TA = -20ºC ~ 25ºC Frequency Change with Temperature TA = 25ºC ~ 85ºC Dead-time control (DTC) Symbol Parameter Conditions Min. 0.65 140 -10 Min. Min. IBDT Input Bias Current IDT Latch Mode (Source) Current TA = 25ºC -80 VDT Latched Input Voltage IO = 40µA 2.3 VT0 VIO IIO IIB VCM AV GBW CMRR VOH VOL IOI IOO AP2001 Rev. 2 Parameter Input Offset Voltage Input Offset Current Input Bias Current Max. 0.75 230 120 -20 Unit V mV mV µA V Typ. 200 10 1 -0.4 -0.2 Max. Unit KHz Typ. Max. ±2 ±2 1 Input Threshold Voltage at f= 10 KHz VT100 Error-amplifier Symbol Typ. 0.7 185 60 -15 1.18 Zero duty cycle Maximum duty cycle Conditions 2.05 1.2 Min. VO (FB) = 1.25V VO (FB) = 1.25V VO (FB) = 1.25V Common-mode Input Voltage VCC = 3.6V ~ 40V Range Open-loop Voltage RF = 200 KΩ Amplification Unity-gain Bandwidth Common-mode Rejection Ratio Max. Output Voltage Min. Output Voltage Output (Sink) Current (FB) VID = -0.1V, VO = 1.25V Output (Source) Current (FB) VID = 0.1V, VO = 1.25V 5 of 8 www.diodes.com -145 2.25 60 µA V Typ. Max. Unit 160 ±6 ±100 500 mV nA nA V 80 dB 1.5 MHz 80 dB 1.6 -70 V V mA µA Vref-0.1 1 0.5 -45 Unit 1.45 1.05 to 1.45 70 % DECEMBER 2006 © Diodes Incorporated AP2001 MONOLITHIC DUAL CHANNEL PWM CONTROLLER Electrical Characteristics ( Continued ) Output section Symbol Parameter Conditions Min. Typ. ILEAK Leakage Current VO = 40V VSAT Output Saturation Voltage IO = 10 mA 1.2 VO = 6V 90 ISC Short-circuit Output Current PWM comparator Symbol Parameter VT0 Conditions Min. Input Threshold Voltage at f = Zero duty cycle 10 KHz (FB) Maximum duty cycle VT100 Total device Symbol Parameter Conditions Max. Unit 10 µA 2 V mA Typ. Max. Unit 2.05 2.25 V 1.2 1.45 V Min. Typ. Max. Unit ICCS Standby Supply Current Off-state 2.5 3.0 mA ICCA Average Supply Current RT = 10 KΩ 2.8 3.5 mA Typical Application Circuit VCC 200k 0.47uF 150 470 L1 Boost Output 50k 33k 33k R1 R2 330pF R3 C2 22k 33k R4 C1 500pF V ref 16 15 14 13 12 11 10 9 7 8 Note: Values for R1 through R7 , C1 through C4 , and L1 and L2 depend upon individual application. AP2001 1 2 3 4 5 6 470 C5 R5 500 pF 470 220 1uF L2 Buck Output R6 33k 33k 470 C4 R7 Dual output DC/DC converter AP2001 Rev. 2 6 of 8 www.diodes.com DECEMBER 2006 © Diodes Incorporated AP2001 MONOLITHIC DUAL CHANNEL PWM CONTROLLER Marking Information (1) SOP-16L ( Top View ) 9 16 Logo Part No. ID code L: Lead Free Package AP2001 YY WW X X 1 8 Xth week: 01~52 Year: "01" = 2001 "02" = 2002 ~ SOP-16L AP2001 Rev. 2 7 of 8 www.diodes.com DECEMBER 2006 © Diodes Incorporated AP2001 MONOLITHIC DUAL CHANNEL PWM CONTROLLER Package Information (1) Package Type: SOP-16L IMPORTANT NOTICE Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages. LIFE SUPPORT Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the President of Diodes Incorporated. AP2001 Rev. 2 8 of 8 www.diodes.com DECEMBER 2006 © Diodes Incorporated