TS34063 Dc to Dc Converter Controller SOP-8 DIP-8 Pin Definition: 1. SC 5. Comp 2. SE 6. Vcc 3. CT 7. Ipk 4. Gnd 8. Vdriver General Description TS34063 is a monolithic switching regulator and subsystem intended for use as DC to DC converter. It contains an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active peak current limit circuit, drive and a high current output switch. The TS34063 is specifically designed to be incorporated in step-up, step-down and voltage inverting converter applications. TS34063 is offered in SOP-8 and DIP-8 package Features ● Power forward control circuit ● Operating voltage from 3V to 40V ● Low standby current ● Current limit adjustable ● Output switch current up to 1.5A ● Variable oscillator frequency up to 100kHz (max.) ● Output voltage adjustable Applications ● Charger ● xD-ROM, xDSL products ● DC to DC converter Pin Description Name Description SC SE CT GND COMP. VCC IPK VDRIVER Switch Collector Switch Emitter Timing Capacitor Ground Comparator Inverting Input VCC Collector IPK Sense Driver Ordering Information Part No. TS34063CD C3 TS34063CS RL Package Packing DIP-8 SOP-8 50pcs / Tube 2.5Kpcs / 13” Reel Block Diagram 1/10 Version: A07 TS34063 Dc to Dc Converter Controller Absolute Maximum Rating Parameter Symbol Maximum Unit Supply Voltage Comparator Input Voltage Range Switch Collector Output Voltage Switch Emitter Voltage Switch Collector to Emitter Voltage Driver Collector Voltage Driver Collector Current (note 1) Output Switching Current VCC VFB VC(SW) VE(SW) VCE(SW) VC(DRIVER) IC(DRIVER) ISW 40 - 0.3 ~ 40 40 40 40 40 100 1.5 1.0 0.5 +125 -65 ~ +150 V V V V V V mA A DIP-8 SOP-8 Power Dissipation PD Junction Temperature Range TJ Storage Temperature Range TSTG Note: Maximum package power dissipation limits must be observed W o o C C Electrical Characteristics (VCC =5V, Ta =25oC; unless otherwise noted.) Parameter Oscillator (OSC) Symbol Test Conditions Frequency Charge Current FOSC ICHARGE CT = 1nF, Vpin5= 0V VCC = 5V ~ 40V 24 24 IDISCHARGE IDISCHARGE / ICHARGE VCC = 5V ~ 40V VIPK(SENSE) Discharge Current Discharge to Charge current ratio Current Limit Sense Voltage Min Typ Max Unit 33 30 42 42 KHz uA 140 200 260 uA Pin7 to VCC 5.2 6.5 7.5 -- IDISCHARGE = ICHARGE 250 -- 350 mV Output switch (note1) Saturation Voltage VCE(SAT) ISW= 1A, pin1, 8 connected -- 1.0 1.3 V Saturation Voltage VCE(SAT) ISW= 1A, Id=50mA -- 0.45 0.7 V ISW = 1A, VCE= 0.5V VCE = 40V 50 -- 75 0.01 -100 -uA 1.225 1.25 1.275 V -- -- 6 mV DC current gain Collector off-state current HFE IC(OFF) Comparator Threshold Voltage Line regulation VREF REGLINE VCC = 3V ~ 40V Total device VCC = 5V ~ 40V, C T = 1nF, pin7= VCC, pin5> VTH, Supply Current ICC -3 5 mA pin2=Gnd, remaining pins open Notes1: Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible Note 2: If the output switch is driven into hard saturation (non-Darlington configuration) at low switch currents (<=300mA) and high driver currents (>=30mA), it may take up to 2uS for it to come out of saturation. This condition will shorten the off time at frequencies >= 30KHz, and is magnified at high temperature. This condition does not occur with a Darlington configuration, since the output switch cannot saturate. If a nondarlington configuration is used, the following output drive condition is recommended: Forced Bata of output switch: Ic output / (Ic driver – 7mA*) >= 10 * The 100ohm resistor in the emitter of the driver divide requires about 7mA before the output switch conducts. 2/10 Version: A07 TS34063 Dc to Dc Converter Controller Electrical Characteristics Curve 3/10 Version: A07 TS34063 Dc to Dc Converter Controller Typical Application Circuit Test Conditions Results Line Regulation Load Regulation Output Ripple Efficiency Output Ripple with Optional Filter VIN= 8V~16V, Io= 175mA VIN = 12V, Io= 75mA to 175mA VIN =12V, Io= 175mA VIN =12V, Io= 175mA VIN =12V, Io= 175mA 30mV = ± 0.05% 10mV = ± 0.017% 400mVpp 87.7% 40mVpp Figure 7. Step Up Converter 4/10 Version: A07 TS34063 Dc to Dc Converter Controller Typical Application Circuit (Continue) Test Conditions Results Line Regulation Load Regulation Output Ripple Short Circuit Current Efficiency Output Ripple with Optional Filter VIN= 15V~25V, Io= 500mA VIN = 25V, Io= 50mA to 500mA VIN =25V, Io= 500mA VIN =25V, RL= 0.1mΩ VIN =25V, Io= 500mA VIN =25V, Io= 500mA 12mV = ±12% 3mV = ±0.03% 120mVpp 1.1A 83.7% 40mVpp Figure 9. Step Down Converter 5/10 Version: A07 TS34063 Dc to Dc Converter Controller Typical Application Circuit (Continue) Test Conditions Results Line Regulation Load Regulation Output Ripple Short Circuit Current Efficiency Output Ripple with Optional Filter VIN= 4.5V~6V, Io= 100mA VIN = 5V, Io= 10mA to 100mA VIN =5V, Io= 100mA VIN =5V, RL= 0.1Ω VIN =5V, Io= 100mA VIN =5V, Io= 100mA 3mV = ±120.012% 0.022V = ±0.09% 500mVpp 910mA 62.2% 70mVpp Figure 11. Voltage Inverting Converter 6/10 Version: A07 TS34063 Dc to Dc Converter Controller Design Formula Table Test Step Up Step Down Voltage Inverting ton Vout + Vf ! Vin(min) Vcc(min) ! Vsat 1 f min Vout + Vf Vcc ! Vsat ! Vout 1 f min | Vout | +Vf Vcc ! Vsat 1 f min toff ( ton+ toff ) CT Ipk(switch) Rsc L(min) Co 4.0 x 10 –5 ton & ton # + 1!! toff % " 2Iout(max) $ $ 4.0 x 10 –5 ton 2Iout(max) 4.0 x 10 –5 ton & ton # + 1!! toff % " 2Iout(max) $ $ & # 0.3 $$ !! % Ipk ( switch) " & # 0.3 $$ !! % Ipk ( switch) " & # 0.3 $$ !! % Ipk ( switch) " & Vin( min ) ' Vsat # $$ !! * ton( max ) % Ipk(switch) " & Vin(min) ' Vsat ' Vout # $$ !! * ton(max) Ipk ( switch) % " & Vin(min) ' Vsat # $$ !! * ton(max) % Ipk ( switch) " & Iout * ton # $$ 9 !! % Vripple( pp) " & Ipk ( switch)(ton + toff ) # $$ !! 8Vripple( pp ) % " & Iout * ton # $$ 9 !! % Vripple( pp) " Terms and Definitions Vsat = Saturation Voltage of the output switch. Vf = Forward Voltage drop of the rectifier. The following power supply characteristics must be chosen: Vin= Normal input voltage Vout: Desied Output voltage, |Vout| =1.25 (1+R2 / R1) Iout : Desired output current. fmin : Minimum desired output switching frequency at the selected values for Vin and Io. Vripple(p-p): 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. 7/10 Version: A07 TS34063 Dc to Dc Converter Controller SOP-8 Mechanical Drawing DIM A B C D F G K M P R SOP-8 DIMENSION MILLIMETERS INCHES MIN MAX MIN MAX. 4.80 5.00 0.189 0.196 3.80 4.00 0.150 0.157 1.35 1.75 0.054 0.068 0.35 0.49 0.014 0.019 0.40 1.25 0.016 0.049 1.27BSC 0.05BSC 0.10 0.25 0.004 0.009 0º 7º 0º 7º 5.80 6.20 0.229 0.244 0.25 0.50 0.010 0.019 Marking Diagram Y = Year Code M = Month Code (A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep, J=Oct, K=Nov, L=Dec) L = Lot Code 8/10 Version: A07 TS34063 Dc to Dc Converter Controller DIP-8 Mechanical Drawing DIP-8 DIMENSION DIM MILLIMETERS INCHES MIN MAX MIN MAX A 9.07 9.32 0.357 0.367 B 6.22 6.48 0.245 0.255 C 3.18 4.45 0.125 0.135 D 0.35 0.55 0.019 0.020 G 2.54 (typ) 0.10 (typ) J 0.29 0.31 0.011 0.012 K 3.25 3.35 0.128 0.132 L 7.75 8.00 0.305 0.315 - 10 M - 10 o o Marking Diagram Y = Year Code M = Month Code (A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep, J=Oct, K=Nov, L=Dec) L = Lot Code 9/10 Version: A07 TS34063 Dc to Dc Converter Controller Notice Specifications of the products displayed herein are subject to change without notice. TSC or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, to any intellectual property rights is granted by this document. Except as provided in TSC’s terms and conditions of sale for such products, TSC assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of TSC products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify TSC for any damages resulting from such improper use or sale. 10/10 Version: A07