AP34063N8

AP34063 UNIVERSAL DC/DC CONVERTER 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) Description 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 S8 : SOP-8L N8 : PDIP-8L Note: Lead Free L : Lead Free (Note 2) Packing - 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 Lead-free 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 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 (Top View) Switch Collector Switch Emitter Timing Capacitor Gnd Switch Collector Switch Emitter Timing Capacitor Gnd (2) SOP-8L (Top View) 1 2 3 4 8 7 6 5 Driver I pk Sense V CC Collector Comparator Inverting Input 1 2 3 4 8 7 6 5 Driver I pk Sense V CC Collector Comparator Inverting Input 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 PD θJA TMJ TOP Tstg Value 40 -0.3 ~ +40 40 40 40 40 100 1.6 600 1.25 160 +150 0 ~ +105 -65 ~ +150 Unit V V V V V V mA A mW 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 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) Symbol fosc Ichg Idischg Idischg / Ichg Vipk (sense) VCE (sat) VCE (sat) hFE IC (off) Vth Regline ICC Min 24 24 140 5.2 300 50 1.225 1.21 Typ 33 30 200 6.5 400 1.0 0.45 75 0.01 1.25 1.4 Max 42 42 260 7.5 450 1.3 0.7 100 1.275 1.29 6.0 3.5 Unit kHz µA µA mV V V µA V mV mA Representative Schematic Diagram Drive Collector 8 1 Switch Collector SQ Q2 Q1 100 2 Switch Emitter R Ipk Sense 7 Ipk Oscillator 6 VCC CT Comparator + _ 1.25V Reference Regulator 3 Timing Capacitor Comparator Inverting Input 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 Vce(sat), Saturation Voltage (V) 1.4 1.26 Figure 2. Reference Voltage versus Temp. 1.2 Reference Voltage (V) 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.255 1 1.25 0.8 1.245 0.6 1.24 0 10 20 30 40 50 60 70 80 90 100 Ie, Emitter Current (A) Temperature (oC) Figure 3. Current Limit Sense Voltage versus Temperature 440 4.0 Figure 4. Standby Supply Current versus Supply Voltage Current Sense Voltage (mV) 420 Icc, Supply Current (mA) 10 20 30 40 50 60 70 80 90 100 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 5 10 15 20 25 30 35 40 400 380 360 340 320 0 Temperature (oC) Vcc, Supply Voltage (V) Figure 5. Emitter Follower Configuration Output Saturation Voltage vs. Emitter Current 1.8 1.75 Vcc=2~10V Pin1,7,8=Vcc Pin3,5=GND TA=25oC Pin2=5 ≤10W Figure 6.Output Switch On-Off Time versus Oscillator Timing Capacitor ton-off, Output Switch On-Off Time(us) 1000 VCE ( sat), (V) 1.7 1.65 1.6 1.55 1.5 1.45 1.4 100 100 VCC = 5.0V Pin 7 = VCC Pin 5 = GND TA = 25oC ton 10 t off 1 300 500 700 900 1100 1300 1500 IE(mA) 0.1 0.01 CT, Oscillator Timing Capacitor ( nF) 0.1 1 10 AP34063 Rev. 2 4 of 11 www.diodes.com MARCH 2007 © Diodes Incorporated AP34063 UNIVERSAL DC/DC CONVERTER Application Circuit (1) Step-Up Converter 120uH L 8 180 SQ Q2 Q1 2 1N5819 Ipk Rsc 0.24 Vin 12V 6 + 1 R 7 CT Osc 3 VCC + _ 470 uF CT Comp. 1.25V Ref Reg 680 pF 4 Vout 28V/200mA 470uF + 5 R2 R1 10k 56k CO 1.0uH Vout + 100 Optional Filter Test Line Regulation Load Regulation Output Ripple Efficiency Conditions Vin = 9V to 12V, IO = 200mA Vin = 12V, IO = 50mA to 200mA Vin = 12V, IO = 200mA Vin = 12V, IO = 200mA Results 20mV = ±0.035% 15mV = ±0.035% 500mVPP 80% AP34063 Rev. 2 5 of 11 www.diodes.com MARCH 2007 © Diodes Incorporated AP34063 UNIVERSAL DC/DC CONVERTER Application Circuit (2) Step-Down Converter ( Continued ) 8 1 SQ Q2 Q1 2 R 7 Ipk Rsc 0.11 Vin 25V 470 uF + + _ CT Osc 6 VC C 1N5819 3 CT L Comp. 1.25V Ref Reg 470 pF 4 Vout 5.0V/500mA 470uF + 100uH 5 R2 R1 25k 36k CO 1.0uH Vout + 100 Optional Filter Test Line Regulation Load Regulation Output Ripple Efficiency Conditions Vin = 12V to 24V, IO = 500mA Vin = 24V, IO = 50mA to 500mA Vin = 24V, IO = 500mA Vin = 24V, IO = 500mA Results 20mV = ±0.2% 5mV = ±0.05% 160mVPP 82% AP34063 Rev. 2 6 of 11 www.diodes.com MARCH 2007 © Diodes Incorporated AP34063 UNIVERSAL DC/DC CONVERTER Application Circuit ( Continued ) (3) Voltage Inverting Converter 8 1 SQ Q2 Q1 2 R 7 Ipk Rsc 0.26 Vin 4.5V to 6.0V + L CT Osc 100 uH 6 VC C + _ 3 + 470uF Comp. 1.25V Ref Reg 4 680 pF 1N5819 5 R1 R2 50k 3k 470uF CO Vout -12V/100mA + 1.0uH Vout + 100 Optional Filter Test Line Regulation Load Regulation Output Ripple Efficiency Conditions Vin = 4.5V to 6.0V, IO = 100mA Vin = 5.0V, IO = 20mA to 100mA Vin = 5.0V, IO = 100mA Vin = 5.0V, IO = 100mA Results 20mV = ±0.08% 30mV = ±0.12% 500mVPP 60% AP34063 Rev. 2 7 of 11 www.diodes.com MARCH 2007 © Diodes Incorporated AP34063 UNIVERSAL DC/DC CONVERTER Design Formula Table Calculation ton / toff ( ton + toff ) Step-Up Vout + VF -Vin (min) Vin (min) - Vsat 1/f ton + toff toff ton toff ton CT Ipk (switch) Rsc L (min) ( ton +toff ) - toff 4.0×10-5ton 2Iout (max) (ton / toff +1) 0.3 / Ipk (switch) ( Vin (min) – Vsat ) Ipk (switch) CO 9 Iout ton Vripple (pp) ton (max) +1 Step-Down vout + vF vin(min) - vsat - vout 1/f ton + toff ton toff ( ton +toff ) - toff 4.0×10-5ton 2Iout (max) 0.3 / Ipk (switch) ( Vin (min) – Vsat -Vout ) Ipk (switch) Ipk (switch) ( toff + ton ) 8Vripple (pp) ton (max) Voltage-Inverting Ivout l + vF Vin - vsat 1/f ton + toff ton toff ( ton + toff ) - toff 4.0×10-5ton 2Iout (max) (ton / toff +1) 0.3 / Ipk (switch) ( Vin (min) – Vsat ) Ipk (switch) 9 Iout ton Vripple (pp) ton (max) +1 +1 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) 8 5 Logo Part Number AP34063 YY WW X X 1 4 L : Lead Free G : Green Internal code Xth week: 01~52 Year: "01" =2001 "02" =2002 ~ (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 AP34063 AP34063 Package SOP-8L PDIP-8L Marking Code Table Marking Code AP34063 AP34063 Date Code YYWW YYWW AP34063 Rev. 2 9 of 11 www.diodes.com MARCH 2007 © Diodes Incorporated AP34063 UNIVERSAL DC/DC CONVERTER Package Information (1) SOP-8L ( All Dimensions in mm ) 5.79/6.20 3.70/4.10 0.08/0.25 0.254 0.38/1.27 Gauge Plane Seating Plane Detail "A" 7°~9° 1.30/1.50 1.75max. 0.20typ 7°~9° 0.35max. 45° Detail "A" 3.70/4.10 1.27typ 4.80/5.30 0.3/0.5 (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