AP34063 UNIVERSAL DC/DC CONVERTER Description Features • • • • • • • • • • Operation from 3.0V to 40V Input Low Standby Current Current Limiting Output Switch Current to 1.6A Output Voltage Adjustable Frequency Operation to 100 kHz Precision 2% Reference 8-pin SOP, PDIP package Lead Free Finish/RoHS Compliant for Lead Free and “Green” products (Note 1) SOP-8L: Available in “Green” Molding Compound (No Br, Sb) The AP34063 Series is a monolithic control circuit containing the primary functions required for DC-to-DC converters. These devices consist of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch. This series is specifically designed for incorporating in Step-Down and Step-Up and Voltage-Inverting applications with a minimum number of external components. Ordering Information AP34063 X X X Package Lead Free S8 : SOP-8L N8 : PDIP-8L Note: Packing L : Lead Free (Note 2) - U : Tube G : Green -13 : Taping 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7. 2. PDIP-8L is available in “Lead Free” only. Device AP34063S8 AP34063N8 Tube/Bulk Package Packaging Quantity Part Number Code (Note 3) Suffix S8 N8 SOP-8L PDIP-8L 100 60 -U -U 13” Tape and Reel Quantity Part Number Suffix 2500/Tape & Reel NA -13 NA Lead-free Note: 3. 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. AP34063 Rev. 2 1 of 11 www.diodes.com MARCH 2007 © Diodes Incorporated AP34063 UNIVERSAL DC/DC CONVERTER Pin Assignment (1) PDIP-8L (2) SOP-8L (Top View) (Top View) Switch Collector 1 8 Driver Switch Collector 1 8 Driver Switch Emitter 2 7 I pk Sense Switch Emitter 2 7 I pk Sense Timing Capacitor 3 6 V CC Collector Timing Capacitor 3 6 V CC Collector 4 5 Comparator Inverting Input 4 5 Comparator Inverting Input Gnd Gnd Maximum Ratings Parameter Power Supply Voltage Comparator Input Voltage Range Switch Collector Voltage Switch Emitter Voltage (VPin 1 = 40V) Switch Collector to Emitter Voltage Driver Collector Voltage Driver Collector Current Switch Current Power Dissipation SOP: TA = 25°C and Thermal PDIP: TA = 25°C Characteristics Thermal Resistance Maximum Junction Temperature Operating Junction Temperature Range Storage Temperature Range Note: Symbol VCC VIR VC (switch) VE (switch) VCE (switch) VC (driver) IC (driver) ISW PD Value 40 -0.3 ~ +40 40 40 40 40 100 1.6 600 Unit V V V V V V mA A mW PD θJA TMJ TOP Tstg 1.25 160 +150 0 ~ +105 -65 ~ +150 W °C/W °C °C °C 4. Maximum package power dissipation limits must be observed. 5. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible. AP34063 Rev. 2 2 of 11 www.diodes.com MARCH 2007 © Diodes Incorporated AP34063 UNIVERSAL DC/DC CONVERTER Electrical Characteristics ( VCC = 5.0V, unless otherwise specified.) Characteristics OSCILLATOR Frequency (VPin 5 = 0V, CT = 1.0nF, TA = 25°C) Charge Current (VCC = 5.0V to 40V, TA = 25°C) Discharge Current (VCC = 5.0V to 40V, TA = 25°C) Discharge to Charge Current Ratio (Pin 7 to VCC, TA = 25°C) Current Limit Sense Voltage (Ichg = Idischg, TA = 25°C) OUTPUT SWITCH (Note 3) Saturation Voltage, Darlington Connection (ISW = 1.0A, Pins 1,8 connected) Saturation Voltage, Darlington Connection (ISW = 1.0A, ID = 50mA, Forced ß ≈ 20) DC Current Gain (ISW = 1.0A, VCE = 5.0V, TA = 25°C) Collector Off-State Current (VCE = 40V) COMPARATOR Threshold Voltage TA = 25°C TA = 0oC ~ 70oC Symbol Min Typ Max Unit fosc Ichg Idischg Idischg / Ichg Vipk (sense) 24 24 140 5.2 300 33 30 200 6.5 400 42 42 260 7.5 450 kHz µA µA mV VCE (sat) - 1.0 1.3 V VCE (sat) - 0.45 0.7 V hFE IC (off) 50 - 75 0.01 100 µA Vth - - - V Regline 1.225 1.21 - 1.25 1.4 1.275 1.29 6.0 mV ICC - - 3.5 mA Threshold Voltage Line Regulation (VCC = 3.0V to 40V) TOTAL DEVICE Supply Current (VCC = 5.0V to 40V, CT =1.0nF, Pin 7 = VCC, VPin 5 > Vth Pin 2 = Gnd, remaining pins open) Representative Schematic Diagram Drive Collector 8 S Q 7 Comparator + _ Comparator Inverting Input Switch Emitter 3 Timing Capacitor CT 6 VCC 2 Q1 100 Ipk Oscillator Switch Collector Q2 R Ipk Sense 1 1.25V Reference Regulator 5 4 Gnd (Bottom View) AP34063 Rev. 2 3 of 11 www.diodes.com MARCH 2007 © Diodes Incorporated AP34063 UNIVERSAL DC/DC CONVERTER Typical Performance Characteristics Figure 1. Vce(sat) versus le Figure 2. Reference Voltage versus Temp. 1.26 Reference Voltage (V) Vce(sat), Saturation Voltage (V) 1.4 1.2 1 0.8 0.6 1.255 1.25 1.245 1.24 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 0 10 20 30 Ie, Emitter Current (A) Figure 3. Current Limit Sense Voltage versus Temperature Icc, Supply Current (mA) Current Sense Voltage (mV) 400 380 360 340 20 30 40 50 60 70 80 90 100 3.0 2.5 2.0 1.5 1.0 100 0 5 10 15 20 25 30 35 40 Vcc, Supply Voltage (V) Figure 6.Output Switch On-Off Time versus Oscillator Timing Capacitor 1000 ton-off, Output Switch On-Off Time(us) VCE ( sat), (V) 90 3.5 (oC) 1.8 Vcc=2~10V Pin1,7,8=Vcc Pin3,5=GND TA=25oC Pin2=5 ≤10W 1.6 1.55 1.5 1.45 1.4 100 80 0.0 10 Figure 5. Emitter Follower Configuration Output Saturation Voltage vs. Emitter Current 1.65 70 0.5 Temperature 1.7 60 4.0 420 1.75 50 Figure 4. Standby Supply Current versus Supply Voltage 440 320 0 40 Temperature (oC) 300 500 700 900 IE(mA) AP34063 Rev. 2 1100 1300 1500 100 VCC = 5.0V Pin 7 = VCC Pin 5 = GND TA = 25oC ton 10 t off 1 0.1 0.01 4 of 11 www.diodes.com 0.1 1 CT, Oscillator Timing Capacitor ( nF) 10 MARCH 2007 © Diodes Incorporated AP34063 UNIVERSAL DC/DC CONVERTER Application Circuit (1) Step-Up Converter 120uH L 8 1 180 S Q Q2 R Q1 7 2 1N5819 Ipk CT Rsc 0.24 Osc 3 6 Vin 12V VCC + 470 uF CT + _ Comp. 1.25V Ref Reg 680 pF 5 4 Vout 28V/200mA R2 10k 56k R1 470uF 1.0uH Vout + + CO 100 Optional Filter Test Line Regulation Conditions Vin = 9V to 12V, IO = 200mA Load Regulation Vin = 12V, IO = 50mA to 200mA Output Ripple Efficiency Vin = 12V, IO = 200mA Vin = 12V, IO = 200mA AP34063 Rev. 2 5 of 11 www.diodes.com Results 20mV = ±0.035% 15mV = ±0.035% 500mVPP 80% MARCH 2007 © Diodes Incorporated AP34063 UNIVERSAL DC/DC CONVERTER Application Circuit ( Continued ) (2) Step-Down Converter 8 1 S Q Q2 R Q1 7 2 Ipk CT Rsc 0.11 1N5819 Osc 3 6 Vin 25V VC CT L C 470 uF + + _ 5 Comp. 1.25V Ref Reg 100uH 470 pF 4 Vout 5.0V/500mA R2 R1 25k 36k 470uF 1.0uH Vout + + CO 100 Optional Filter Line Regulation Test Conditions Vin = 12V to 24V, IO = 500mA Load Regulation Vin = 24V, IO = 50mA to 500mA Output Ripple Efficiency Vin = 24V, IO = 500mA Vin = 24V, IO = 500mA AP34063 Rev. 2 6 of 11 www.diodes.com Results 20mV = ±0.2% 5mV = ±0.05% 160mVPP 82% MARCH 2007 © Diodes Incorporated AP34063 UNIVERSAL DC/DC CONVERTER Application Circuit ( Continued ) (3) Voltage Inverting Converter 8 1 S Q Q2 R Q1 7 2 Ipk 100 uH L CT Rsc 0.26 Osc 3 6 Vin 4.5V to 6.0V VC C + + + _ 470uF Comp. 680 pF 1.25V Ref Reg 5 1N5819 4 Vout -12V/100mA R1 R2 50k 3k 470uF + 1.0uH Vout CO + 100 Optional Filter Test Conditions Results Vin = 4.5V to 6.0V, IO = 100mA 20mV = ±0.08% Load Regulation Vin = 5.0V, IO = 20mA to 100mA Output Ripple Efficiency Vin = 5.0V, IO = 100mA Vin = 5.0V, IO = 100mA 30mV = ±0.12% 500mVPP 60% Line Regulation AP34063 Rev. 2 7 of 11 www.diodes.com MARCH 2007 © Diodes Incorporated AP34063 UNIVERSAL DC/DC CONVERTER Design Formula Table Calculation ton / toff Step-Up Step-Down Voltage-Inverting Vout + VF -Vin (min) vout + vF Ivout l + vF Vin (min) - Vsat vin(min) - vsat - vout 1/f 1/f 1/f ton + toff ton + toff ton + toff ( ton + toff ) toff ton ton +1 Vin - vsat ton +1 toff toff +1 toff ton ( ton +toff ) - toff ( ton +toff ) - toff ( ton + toff ) - toff CT 4.0×10-5ton 4.0×10-5ton 4.0×10-5ton Ipk (switch) 2Iout (max) (ton / toff +1) 2Iout (max) 2Iout (max) (ton / toff +1) Rsc 0.3 / Ipk (switch) 0.3 / Ipk (switch) 0.3 / Ipk (switch) L (min) ( Vin (min) – Vsat ) Ipk (switch) CO 9 ton (max) ( Vin (min) – Vsat -Vout ) Ipk (switch) Iout ton Ipk (switch) ( toff + ton ) Vripple (pp) 8Vripple (pp) ton ( Vin (min) – Vsat ) (max) Ipk (switch) 9 ton (max) Iout ton Vripple (pp) Vsat = Saturation voltage of the output switch. VF = Forward voltage drop of the output rectifier. The following power supply characteristics must be chosen: Vin - Nominal input voltage. Vout - Desired output voltage, |Vout| = 1.25 (1+R2/R1) Iout - Desired output current. fmin - Minimum desired output switching frequency at the selected values of Vin and Io. Vripple(pp) - Desired peak-to-peak output ripple voltage. In practice, the calculated capacitor value will need to be increased due to its equivalent series resistance and board layout. The ripple voltage should be kept to a low value since it will directly affect the line and load regulation. AP34063 Rev. 2 8 of 11 www.diodes.com MARCH 2007 © Diodes Incorporated AP34063 UNIVERSAL DC/DC CONVERTER Marking Information (1) SOP-8L (Top view) 5 8 L : Lead Free G : Green Logo AP34063 YY WW X X Part Number Internal code Xth week: 01~52 Year: "01" =2001 "02" =2002 4 1 ~ (2) PDIP-8L (Top view) Logo Part Number L : Lead Free AP34063 YY WW X X Internal Code Xth week : 01 ~ 52 Year : " 01 " = 2001 02 " = 2002 ~ Device Package AP34063 AP34063 SOP-8L PDIP-8L AP34063 Rev. 2 Marking Code Table Marking Code AP34063 AP34063 9 of 11 www.diodes.com Date Code YYWW YYWW MARCH 2007 © Diodes Incorporated AP34063 UNIVERSAL DC/DC CONVERTER Package Information ( All Dimensions in mm ) 0.254 0.08/0.25 5.79/6.20 3.70/4.10 (1) SOP-8L Gauge Plane Seating Plane 0.38/1.27 Detail "A" 7°~9° 0.20typ 1.30/1.50 0.3/0.5 1.27typ 1.75max. 0.35max. 45° 7°~9° Detail "A" 3.70/4.10 4.80/5.30 (2) PDIP-8L AP34063 Rev. 2 10 of 11 www.diodes.com MARCH 2007 © Diodes Incorporated AP34063 UNIVERSAL DC/DC CONVERTER 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. AP34063 Rev. 2 11 of 11 www.diodes.com MARCH 2007 © Diodes Incorporated