CP34063 1.5A,Step-Up/Down/Inverting Switching Regulators The CP34063 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 was specifically designed to be incorporated in Step–Down and Step–Up and Voltage–Inverting applications with a minimum number of external components. • • • • • • • 1 PIN CONNECTIONS 1 R 100 2 3 Comparator - Comparator 5 Inverting Input 1 8 2 7 3 6 4 5 Q1 6 + Switch Collector Q2 Ipk Oscillator CT VCC 1 8 Drive 8 Collector Ipk 7 Sense 8 SOP–8 Operation from 3.0 V to 40 V Input Low Standby Current Current Limiting Output Switch Current to 1.5 A Output Voltage Adjustable Frequency Operation to 100 kHz Precision 2% Reference S Q PDIP–8 1.25 V Reference Regulator 4 Switch Emitter Timing Capacitor 1 - Switch Collector 2 - Switch Emitter 3 - Timing Capacitor 4 - Gnd 5 - Comparator Inverting Input 6 - Vcc 7 - Ipk Sense 8 - Driver Collector Gnd (Bottom View) This device contains 51 active transistors. Figure 1. Representative Schematic Diagram * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Email: [email protected] Tel:886-3-3214525 Http: www.ceramate.com.tw Page 1 of 10 Rev 1.1 Jul.18,2003 Fax:886-3-3521052 CP34063 1.5A,Step-Up/Down/Inverting Switching Regulators MAXIMUM RATINGS Rating Symbol Value Unit Power Supply Voltage VCC 40 Vdc Comparator Input Voltage Range VIR –0.3 to +40 Vdc Switch Collector Voltage VC(switch) 40 Vdc Switch Emitter Voltage (VPin 1 = 40 V) VE(switch) 40 Vdc Switch Collector to Emitter Voltage VCE(switch) 40 Vdc Driver Collector Voltage VC(driver) 40 Vdc Driver Collector Current (Note 1) IC(driver) 100 mA ISW 1.5 A PD RθJA 1.25 100 W °C/W PD RθJA 625 160 mW °C/W TJ +150 °C Switch Current Power Dissipation and Thermal Characteristics Plastic Package, PDIP-8 TA = 25°C Thermal Resistance SOIC Package, SOP-8 TA = 25°C Thermal Resistance Operating Junction Temperature Operating Ambient Temperature Range TA 0 to +70 °C Storage Temperature Range Tstg –65 to +150 °C 1. Maximum package power dissipation limits must be observed. 2. ESD data available upon request. 3. NCV prefix is for automotive and other applications requiring site and change control. ORDERING INFORMATION CP 34063 X A : Taping (SOP -8) N : Tube (DIP -8) * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Email: [email protected] Tel:886-3-3214525 Http: www.ceramate.com.tw Page 2 of 10 Rev 1.1 Jul.18,2003 Fax:886-3-3521052 CP34063 1.5A,Step-Up/Down/Inverting Switching Regulators ELECTRICAL CHARACTERISTICS (VCC = 5.0 V, TA = Tlow to Thigh [Note 4], unless otherwise specified.) Characteristics Symbol Min Typ Max Unit fosc 24 33 42 kHz OSCILLATOR Frequency (VPin 5 = 0 V, CT = 1.0 nF, TA = 25°C) Ichg 24 33 42 µA Idischg 140 220 260 µA Discharge to Charge Current Ratio (Pin 7 to VCC, TA = 25°C) Idischg/Ichg 5.2 6.5 7.5 – Current Limit Sense Voltage (Ichg = Idischg, TA = 25°C) Vipk(sense) 250 300 350 mV Saturation Voltage, Darlington Connection ( ISW = 1.0 A, Pins 1, 8 connected) VCE(sat) – 1.0 1.3 V Saturation Voltage (Note 6) (ISW = 1.0 A, RPin 8 = 82 Ω to VCC, Forced β 20) VCE(sat) – 0.45 0.7 V hFE 50 120 – – IC(off) – 0.01 100 µA 1.225 1.21 1.25 – 1.27 1.29 Regline – 1.4 5.0 mV IIB – –40 –400 nA ICC – 2.5 4.0 mA Charge Current (VCC = 5.0 V to 40 V, TA = 25°C) Discharge Current (VCC = 5.0 V to 40 V, TA = 25°C) OUTPUT SWITCH (Note 5) DC Current Gain (ISW = 1.0 A, VCE = 5.0 V, TA = 25°C) Collector Off–State Current (VCE = 40 V) COMPARATOR Threshold Voltage TA = 25°C TA = Tlow to Thigh Threshold Voltage Line Regulation (VCC = 3.0 V to 40 V) Input Bias Current (Vin = 0 V) Vth V TOTAL DEVICE Supply Current (VCC = 5.0 V to 40 V, CT = 1.0 nF, Pin 7 = VCC, VPin 5 > Vth, Pin 2 = Gnd, remaining pins open) 4. Tlow = 0°C for CP34063 5. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible. 6. If the output switch is driven into hard saturation (non–Darlington configuration) at low switch currents (≤ 300 mA) and high driver currents (≥ 30 mA), it may take up to 2.0 µs for it to come out of saturation. This condition will shorten the off time at frequencies ≥ 30 kHz, and is magnified at high temperatures. This condition does not occur with a Darlington configuration, since the output switch cannot saturate. If a non–Darlington configuration is used, the following output drive condition is recommended: IC output 10 Forced of output switch : IC driver – 7.0 mA * * The 100 Ω resistor in the emitter of the driver device requires about 7.0 mA before the output switch conducts. * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Email: [email protected] Tel:886-3-3214525 Http: www.ceramate.com.tw Page 3 of 10 Rev 1.1 Jul.18,2003 Fax:886-3-3521052 CP34063 1000 100 50 ton 20 10 5.0 toff 2.0 1.0 0.01 0.02 10 µs/DIV Figure 3. Timing Capacitor Waveform 1.7 1.6 1.5 1.4 1.3 VCC = 5.0 V Pins 1, 7, 8 = VCC Pins 3, 5 = Gnd TA = 25°C (See Note 7) 1.2 1.1 1.0 0 0.2 0.4 0.6 0.8 1.0 1.2 IE, EMITTER CURRENT (A) 1.4 1.1 1.0 0.9 Darlington Connection 0.8 0.7 0.6 VCC = 5.0 V Pin 7 = VCC Pins 2, 3, 5 = Gnd TA = 25°C (See Note 7) 0.5 0.4 0.3 0.2 Forced β = 20 0.1 0 1.6 0 Figure 4. Emitter Follower Configuration Output Saturation Voltage versus Emitter Current 0.2 0.4 0.6 0.8 1.0 1.2 IC, COLLECTOR CURRENT(A) 1.4 1.6 Figure 5. Common Emitter Configuration Output Switch Saturation Voltage versus Collector Current 3.6 400 380 3.2 VCC = 5.0 V Ichg = Idischg 360 340 I CC, SUPPLY CURRENT (mA) VIPK(sense), CURRENT LIMIT SENSE VOLTAGE (V) Pins 1, 5, 8 = Open CT = 1.0 nF TA = 25°C VCC = 5.0 V Pin 7 = VCC Pin 2 = Gnd 5.0 10 Figure 2. Output Switch On–Off Time versus Oscillator Timing Capacitor 1.8 VCE(sat), SATURATION VOLTAGE (V) 0.05 0.1 0.2 0.5 1.0 2.0 CT, OSCILLATOR TIMING CAPACITOR (nF) 200 mV/DIV 200 V OSC, OSCILLATOR VOLTAGE (V) VCC = 5.0 V Pin 7 = VCC Pin 5 = Gnd TA = 25°C 500 VCE(sat), SATURATION VOLTAGE (V) t on-off , OUTPUT SWITCH ONOFF TIME ( µs) 1.5A,Step-Up/Down/Inverting Switching Regulators 320 300 280 260 240 220 200 -55 -25 0 25 50 75 TA, AMBIENT TEMPERATURE (°C) Figure 6. Current Limit Sense Voltage versus Temperature 100 125 2.8 2.4 2.0 1.6 1.2 CT = 1.0 nF Pin 7 = VCC Pin 2 = Gnd 0.8 0.4 0 0 5.0 10 15 20 25 30 VCC, SUPPLY VOLTAGE (V) 35 Figure 7. Standby Supply Current versus Supply Voltage * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Email: [email protected] Tel:886-3-3214525 Http: www.ceramate.com.tw Page 4 of 10 Rev 1.1 Jul.18,2003 Fax:886-3-3521052 40 CP34063 1.5A,Step-Up/Down/Inverting Switching Regulators 170 µH L 1 8 180 S Q Q2 R Q1 7 2 Ipk Rsc 0.22 Vin 12 V Osc + 6 CT 3 CT VCC 100 + - Comp. 5 1N5819 1.25 V Ref Reg 4 1500 pF R2 R1 47 k 2.2 k 330 + 1.0 µH Vout 28 V/175 mA + CO Vout 100 Optional Filter Test Conditions Results Line Regulation Vin = 8.0 V to 16 V, IO = 175 mA 30 mV = ±0.05% Load Regulation Vin = 12 V, IO = 75 mA to 175 mA 10 mV = ±0.017% Output Ripple Vin = 12 V, IO = 175 mA 400 mVpp Efficiency Vin = 12 V, IO = 175 mA 87.7% Output Ripple With Optional Filter Vin = 12 V, IO = 175 mA 40 mVpp Figure 8. Step–Up Converter * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Email: [email protected] Tel:886-3-3214525 Http: www.ceramate.com.tw Page 5 of 10 Rev 1.1 Jul.18,2003 Fax:886-3-3521052 CP34063 1.5A,Step-Up/Down/Inverting Switching Regulators 8 1 7 Vout 8 7 2 Rsc Vin 1 R Vout 2 Rsc Vin 6 6 R 0 for constant Vin Figure 9. External Current Boost Connections for IC Peak Greater than 1.5 A 9a. External NPN Switch 9b. External NPN Saturated Switch (See Note 8) 8. If the output switch is driven into hard saturation (non–Darlington configuration) at low switch currents (≤ 300 mA) and high driver currents (≥ 30 mA), it may take up to 2.0 µs to come out of saturation. This condition will shorten the off time at frequencies ≥ 30 kHz, and is magnified at high temperatures. This condition does not occur with a Darlington configuration, since the output switch cannot saturate. If a non–Darlington configuration is used, the following output drive condition is recommended. * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Email: [email protected] Tel:886-3-3214525 Http: www.ceramate.com.tw Page 6 of 10 Rev 1.1 Jul.18,2003 Fax:886-3-3521052 CP34063 1.5A,Step-Up/Down/Inverting Switching Regulators 8 1 S Q Q2 Q1 R 7 2 Ipk Rsc 0.33 Vin 25 V Osc 6 100 + CT VCC + - 1.25 V Ref Reg Comp. 5 1N5819 3 L CT 4 220 µH 470 pF R1 3.6 k 1.2 k 470 + 1.0 µH Vout 5.0 V/500 mA R2 + CO Vout 100 Optional Filter Test Conditions Results Line Regulation Vin = 15 V to 25 V, IO = 500 mA 12 mV = ±0.12% Load Regulation Vin = 25 V, IO = 50 mA to 500 mA 3.0 mV = ±0.03% Output Ripple Vin = 25 V, IO = 500 mA 120 mVpp Short Circuit Current Vin = 25 V, RL = 0.1 Ω 1.1 A Efficiency Vin = 25 V, IO = 500 mA 83.7% Output Ripple With Optional Filter Vin = 25 V, IO = 500 mA 40 mVpp Figure 10. Step–Down Converter 8 1 7 2 7 Vout Rsc Vin 1 8 6 2 Rsc Vin 6 Figure 11. External Current Boost Connections for IC Peak Greater than 1.5 A 11a. External NPN Switch 11b. External PNP Saturated Switch * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Email: [email protected] Tel:886-3-3214525 Http: www.ceramate.com.tw Page 7 of 10 Rev 1.1 Jul.18,2003 Fax:886-3-3521052 V CP34063 1.5A,Step-Up/Down/Inverting Switching Regulators 1 8 S Q Q2 R Q1 7 2 Ipk Rsc 0.24 Osc 6 Vin 4.5 V to 6.0 V 100 + 88 µH L CT VCC 3 + - Comp. + 1.25 V Ref Reg 5 1500 pF 1N5819 4 R1 R2 953 8.2 k 1.0 µH Vout -12 V/100 mA 1000 µf + Vout CO + 100 Optional Filter Test Conditions Results Line Regulation Vin = 4.5 V to 6.0 V, IO = 100 mA 3.0 mV = ±0.012% Load Regulation Vin = 5.0 V, IO = 10 mA to 100 mA 0.022 V = ±0.09% Output Ripple Vin = 5.0 V, IO = 100 mA 500 mVpp Short Circuit Current Vin = 5.0 V, RL = 0.1 Ω 910 mA Efficiency Vin = 5.0 V, IO = 100 mA 62.2% Output Ripple With Optional Filter Vin = 5.0 V, IO = 100 mA 70 mVpp Figure 12. Voltage Inverting Converter 8 1 1 Vout 8 7 2 7 Vout Vin 6 Vin 2 6 Figure 13. External Current Boost Connections for IC Peak Greater than 1.5 A 13a. External NPN Switch 13b. External PNP Saturated Switch * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Email: [email protected] Tel:886-3-3214525 Http: www.ceramate.com.tw Page 8 of 10 Rev 1.1 Jul.18,2003 Fax:886-3-3521052 CP34063 1.5A,Step-Up/Down/Inverting Switching Regulators Package Outlines : DIP-8 SYMBOL A b1 b2 c1 D E e eA L Q s1 α INCHES MIN MAX 0.200 0.014 0.023 0.045 0.065 0.008 0.015 0.355 0.400 0.220 0.310 0.100 BSC 0.300 BSC 0.125 0.200 0.015 0.060 0.005 1050 900 MILLIMETERS MIN MAX 5.08 0.36 0.58 1.14 1.65 0.20 0.38 9.02 10.16 5.59 7.87 2.54 BSC 7.62 BSC 3.18 5.08 0.38 1.52 0.13 900 1050 NOTES - * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Email: [email protected] Tel:886-3-3214525 Http: www.ceramate.com.tw Page 9 of 10 Rev 1.1 Jul.18,2003 Fax:886-3-3521052 CP34063 1.5A,Step-Up/Down/Inverting Switching Regulators Small Outline SYMBOL A B C D E F H J K M L e1 α SOP-8 INCHES MIN MAX 0.188 0.197 0.149 0.158 0.228 0.244 0.050 BSC 0.013 0.020 0.004 0.010 0.053 0.069 0.011 0.019 0.007 0.010 0.016 0.050 0.150 REF 450 0 80 0 MILLIMETERS MIN MAX 4.80 5.00 3.80 4.00 5.80 6.20 1.27 BSC 0.33 0.51 0.10 0.25 1.35 1.75 0.28 0.48 0.19 0.25 0.40 1.27 3.81 REF 450 0 0 80 NOTES - * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Email: [email protected] Tel:886-3-3214525 Http: www.ceramate.com.tw Page 10 of 10 Rev 1.1 Jul.18,2003 Fax:886-3-3521052