CP34063A

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. PDIP–8 8 1 • • • • • • • 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 SOP–8 8 1 PIN CONNECTIONS 1 2 8 7 6 5 Drive 8 Collector SQ Ipk 7 Sense R 100 Q2 Q1 1 Switch Collector 3 4 2 Ipk Oscillator CT VCC 6 Comparator + Comparator 5 Inverting Input 1.25 V Reference Regulator 4 (Bottom View) 3 Switch Emitter Timing Capacitor 1 - S witch Collector 2 - S witch Emitter 3 - T iming Capacitor 4 - Gnd 5 - C omparator Inverting Input 6 - V cc 7 - Ipk Sense 8 - Driver Collector Gnd 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: server@ceramate.com.tw 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 Power Supply Voltage Comparator Input Voltage Range Switch Collector Voltage Switch Emitter Voltage (VPin 1 = 40 V) Switch Collector to Emitter Voltage Driver Collector Voltage Driver Collector Current (Note 1) 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 Storage Temperature Range 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. Symbol VCC VIR VC(switch) VE(switch) VCE(switch) VC(driver) IC(driver) ISW Value 40 –0.3 to +40 40 40 40 40 100 1.5 Unit Vdc Vdc Vdc Vdc Vdc Vdc mA A PD RθJA PD RθJA TJ TA Tstg 1.25 100 625 160 +150 0 to +70 –65 to +150 W °C/W mW °C/W °C °C °C 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: server@ceramate.com.tw 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 OSCILLATOR Frequency (VPin 5 = 0 V, CT = 1.0 nF, TA = 25°C) Charge Current (VCC = 5.0 V to 40 V, TA = 25°C) Discharge Current (VCC = 5.0 V to 40 V, 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 5) Saturation Voltage, Darlington Connection ( ISW = 1.0 A, Pins 1, 8 connected) Saturation Voltage (Note 6) (ISW = 1.0 A, RPin 8 = 82 Ω to VCC, Forced β ] 20) 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) 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) ICC – 2.5 4.0 mA Vth 1.225 1.21 Regline IIB – – 1.25 – 1.4 –40 1.27 1.29 5.0 –400 mV nA V VCE(sat) VCE(sat) hFE IC(off) – – 50 – 1.0 0.45 120 0.01 1.3 0.7 – 100 V V – µA fosc Ichg Idischg Idischg/Ichg Vipk(sense) 24 24 140 5.2 250 33 33 220 6.5 300 42 42 260 7.5 350 kHz µA µA – mV Symbol Min Typ Max Unit 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 w 10 Forced b 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: server@ceramate.com.tw Tel:886-3-3214525 Http: www.ceramate.com.tw Page 3 of 10 Rev 1.1 Jul.18,2003 Fax:886-3-3521052 CP34063 1.5A,Step-Up/Down/Inverting Switching Regulators t on-off , OUTPUT SWITCH ON OFF TIME ( µs) 1000 V OSC, OSCILLATOR VOLTAGE (V) 500 200 100 50 20 10 5.0 2.0 1.0 0.01 0.02 toff VCC = 5.0 V Pin 7 = VCC Pin 5 = Gnd TA = 25°C ton VCC = 5.0 V Pin 7 = VCC Pin 2 = Gnd Pins 1, 5, 8 = Open CT = 1.0 nF TA = 25°C 10 µs/DIV 0.05 0.1 0.2 0.5 1.0 2.0 CT, OSCILLATOR TIMING CAPACITOR (nF) 5.0 10 1.8 VCE(sat), SATURATION VOLTAGE (V) 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0 Figure 2. Output Switch On–Off Time versus Oscillator Timing Capacitor VCE(sat), SATURATION VOLTAGE (V) Figure 3. Timing Capacitor Waveform 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0 0.2 0.4 0.6 0.8 1.0 1.2 IC, COLLECTOR CURRENT(A) 1.4 1.6 VCC = 5.0 V Pin 7 = VCC Pins 2, 3, 5 = Gnd TA = 25°C (See Note 7) Darlington Connection Forced β = 20 VCC = 5.0 V Pins 1, 7, 8 = VCC Pins 3, 5 = Gnd TA = 25°C (See Note 7) 0.2 0.4 0.6 0.8 1.0 1.2 IE, EMITTER CURRENT (A) 1.4 1.6 Figure 4. Emitter Follower Configuration Output Saturation Voltage versus Emitter Current VIPK(sense), CURRENT LIMIT SENSE VOLTAGE (V) Figure 5. Common Emitter Configuration Output Switch Saturation Voltage versus Collector Current 3.6 400 380 360 340 320 300 280 260 240 220 200 -55 -25 0 25 50 75 TA, AMBIENT TEMPERATURE (°C) 100 125 I CC, SUPPLY CURRENT (mA) VCC = 5.0 V Ichg = Idischg 3.2 2.8 2.4 2.0 1.6 1.2 0.8 0.4 0 0 5.0 10 CT = 1.0 nF Pin 7 = VCC Pin 2 = Gnd 15 20 25 30 VCC, SUPPLY VOLTAGE (V) 35 40 Figure 6. Current Limit Sense Voltage versus Temperature 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: server@ceramate.com.tw Tel:886-3-3214525 Http: www.ceramate.com.tw Page 4 of 10 Rev 1.1 Jul.18,2003 Fax:886-3-3521052 200 mV/DIV CP34063 1.5A,Step-Up/Down/Inverting Switching Regulators 170 µH L 8 180 SQ R 7 Rsc 0.22 Vin 12 V + 6 100 VCC + - 1 Q2 Q1 2 Ipk Osc CT 3 CT 1.25 V Ref Reg 4 R2 1500 pF 1.0 µH + Vout 100 1N5819 Comp. 5 R1 2.2 k 47 k 330 + Vout 28 V/175 mA CO Optional Filter Test Line Regulation Load Regulation Output Ripple Efficiency Output Ripple With Optional Filter Conditions Vin = 8.0 V to 16 V, IO = 175 mA Vin = 12 V, IO = 75 mA to 175 mA Vin = 12 V, IO = 175 mA Vin = 12 V, IO = 175 mA Vin = 12 V, IO = 175 mA Results 30 mV = ±0.05% 10 mV = ±0.017% 400 mVpp 87.7% 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: server@ceramate.com.tw 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 Vout 8 1 R Vout 7 Rsc Vin 6 2 Rsc Vin 7 2 6 R ³ 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: server@ceramate.com.tw 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 SQ R 7 Rsc 0.33 Vin 25 V 100 6 + VCC + - 1 Q2 Q1 2 Ipk Osc CT 1N5819 3 L CT 470 pF 1.0 µH + Vout 100 220 µH Comp. 1.25 V Ref Reg 5 R2 R1 1.2 k 3.6 k 4 470 + Vout 5.0 V/500 mA CO Optional Filter Test Line Regulation Load Regulation Output Ripple Short Circuit Current Efficiency Output Ripple With Optional Filter Conditions Vin = 15 V to 25 V, IO = 500 mA Vin = 25 V, IO = 50 mA to 500 mA Vin = 25 V, IO = 500 mA Vin = 25 V, RL = 0.1 Ω Vin = 25 V, IO = 500 mA Vin = 25 V, IO = 500 mA Results 12 mV = ±0.12% 3.0 mV = ±0.03% 120 mVpp 1.1 A 83.7% 40 mVpp Figure 10. Step–Down Converter 8 1 1 8 V 7 Rsc Vin 6 2 Vout Rsc Vin 7 2 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: server@ceramate.com.tw Tel:886-3-3214525 Http: www.ceramate.com.tw Page 7 of 10 Rev 1.1 Jul.18,2003 Fax:886-3-3521052 CP34063 1.5A,Step-Up/Down/Inverting Switching Regulators 8 SQ R 7 Rsc 0.24 Vin 4.5 V to 6.0 V 100 6 + VCC + - 1 Q2 Q1 2 Ipk Osc CT 3 1.25 V Ref Reg 4 R1 Vout -12 V/100 mA 1000 µf + CO 1.0 µH Vout + 100 + 1500 pF 1N5819 L 88 µH Comp. 5 R2 8.2 k 953 Optional Filter Test Line Regulation Load Regulation Output Ripple Short Circuit Current Efficiency Output Ripple With Optional Filter Conditions Vin = 4.5 V to 6.0 V, IO = 100 mA Vin = 5.0 V, IO = 10 mA to 100 mA Vin = 5.0 V, IO = 100 mA Vin = 5.0 V, RL = 0.1 Ω Vin = 5.0 V, IO = 100 mA Vin = 5.0 V, IO = 100 mA Results 3.0 mV = ±0.012% 0.022 V = ±0.09% 500 mVpp 910 mA 62.2% 70 mVpp Figure 12. Voltage Inverting Converter 8 1 8 7 2 Vout Vin 6 1 Vout 7 2 Vin 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: server@ceramate.com.tw 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: server@ceramate.com.tw 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 SOP-8 SYMBOL A B C D E F H J K M L e1 α 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: server@ceramate.com.tw Tel:886-3-3214525 Http: www.ceramate.com.tw Page 10 of 10 Rev 1.1 Jul.18,2003 Fax:886-3-3521052