TS34063CS RLG

TS34063CS Taiwan Semiconductor Inverting Regulator – Buck, Boost, Switching DESCRIPTION FEATURES TS34063 is a monolithic switching regulator and ● Power forward control circuit subsystem intended for use as DC-to-DC converter. It ● Operating voltage from 3V to 40V consist compensated ● Low standby current reference, comparator, controlled duty cycle oscillator ● Current limit adjustable with an active peak current limit circuit, driver and high ● Output switch current up to 1.5A current output switch. The TS34063 is specifically ● Variable oscillator frequency up to 100kHz (max.) designed to be incorporated in Step-Up, Step-Down and ● Output voltage adjustable Voltage-Inverting applications with minimum number of ● RoHS Compliant external components. ● Halogen-free according to IEC 61249-2-21 of an internal temperature APPLICATION ● Charger ● xD-ROM, xDSL products ● DC to DC converter SOP-8 Pin Definition: 1. Switch Collector 2. Switch Emitter 3. Timing Capacitor 4. GND 5. Comparator Inverting Input 6. VCC 7. Ipk 8. Driver Collector Note: MSL 3 (Moisture Sensitivity Level) per J-STD-020 TYPICAL APPLICATION CIRCUIT Step-Up Converter 1 Version: C2103 TS34063CS Taiwan Semiconductor ABSOLUTE MAXIMUM RATINGS (Note 1) PARAMETER SYMBOL LIMIT UNIT Supply Voltage VCC 40 V Comparator Input Voltage Range VFB -0.3 ~ 40 V Switch Collector Output Voltage VC(SW) 40 V Switch Emitter Voltage VE(SW) 40 mA Switch Collector to Emitter Voltage VCE(SW) 40 mW Driver Collector Voltage VC(DRIVER) 40 °C Driver Collector Current (note 1) IC(DRIVER) 100 V Output Switching Current ISW 1.5 A Power Dissipation PD 0.5 W TOPR -40 ~ +85 o C Junction Temperature Range TJ 0 ~ +125 o C Storage Temperature Range TSTG -65 ~ +150 o C Operating Ambient Temperature Range ELECTRICAL SPECIFICATIONS (VCC = 5V, TA = 25°C unless otherwise noted) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT CT = 1nF, Vpin5= 0V VCC = 5V ~ 40V VCC = 5V ~ 40V 24 24 140 33 30 200 42 42 260 kHz µA µA Pin7 to VCC 5.2 6.5 7.5 -- IDISCHARGE = ICHARGE 250 -- 350 mV -- 1.0 1.3 V -50 -- 0.45 75 0.01 0.7 -100 V -µA 1.225 -- 1.25 -- 1.275 6 V mV -- 3 5 mA Oscillator Frequency Charge Current Discharge Current Discharge to Charge current ratio Current Limit Sense Voltage Output switch FOSC ICHARGE IDISCHARGE IDISCHARGE / ICHARGE VIPK(SENSE) (note1) Saturation Voltage VCE(SAT) Saturation Voltage DC current gain Collector off-state current VCE(SAT) HFE IC(OFF) ISW= 1A, Pin1, 8 connected ISW= 1A, ID=50mA ISW = 1A, VCE= 0.5V VCE = 40V Comparator Threshold Voltage Line regulation VREF REGLINE VCC = 3V ~ 40V Total device Supply Current ICC VCC = 5V ~ 40V, CT = 1nF, pin7= VCC, pin5> VTH, pin2=Gnd, remaining pins open Note: 1. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible. 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 2µs 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 Non-Darlington 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 Version: C2103 TS34063CS Taiwan Semiconductor ORDERING INFORMATION ORDERING CODE PACKAGE PACKING TS34063CS RLG SOP-8 2,500pcs / 13” Reel BLOCK DIAGRAM 3 Version: C2103 TS34063CS Taiwan Semiconductor ELECTRICAL CHARACTERISTICS CURVE Fig 2. Timing Capacitor Wave Form Fig 1. Output Switch On-Off Time vs. Oscillator Timing Capacitor Fig 3. Oscillator Frequency vs. Timing Capacitor Fig 4. Standby Supply Current vs. Supply Voltage Fig 5. Current Limit Sense Voltage vs. Temperature 4 Version: C2103 TS34063CS Taiwan Semiconductor 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 Fig 6. Step-Up Converter Fig. 7. External current Boost connections for IC peak greater than 1.5A 5 Version: C2103 TS34063CS Taiwan Semiconductor 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 Fig 8. Step-Down Converter Fig. 9. External current Boost connections for IC peak greater than 1.5A 6 Version: C2103 TS34063CS Taiwan Semiconductor 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 Fig 10. Voltage Inverting Converter Fig. 11. External current Boost connections for IC peak greater than 1.5A 7 Version: C2103 TS34063CS Taiwan Semiconductor DESIGN FORMULA TABLE Test ton/toff (ton + toff) CT Ipk(switch) ⚫ ⚫ Step-Up Step-Down Voltage Inverting 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 4.0 x 10 –5 ton 4.0 x 10 –5 ton 4.0 x 10 –5 ton  ton  + 1  toff  2Iout(max) 2Iout(max)    ton  + 1  toff  2Iout(max)   Rsc   0.3    Ipk ( switch)    0.3    Ipk ( switch)    0.3    Ipk ( switch)  L(min)  Vin( min ) − Vsat    * ton( max )  Ipk(switch)   Vin(min) − Vsat − Vout    * ton(max) Ipk ( switch)    Vin(min) − Vsat   Ipk ( switch)  * ton(max)   Co  Iout * ton   9   Vripple( pp)   Ipk ( switch)(ton + toff )    8Vripple( pp)    Iout * ton   9   Vripple( pp)  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: Desired 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. 8 Version: C2103 TS34063CS Taiwan Semiconductor PACKAGE OUTLINE DIMENSIONS (Unit: Millimeters) SOP-8 SUGGESTED PAD LAYOUT (Unit: Millimeters) MARKING DIAGRAM Y = Year Code M = Month Code for Halogen Free Product O =Jan P =Feb Q =Mar R =Apr S =May T =Jun U =Jul V =Aug W =Sep X =Oct Y =Nov Z =Dec L = Lot Code (1~9, A~Z) 9 Version: C2103 TS34063CS Taiwan Semiconductor 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. Purchasers are solely responsible for the choice, selection, and use of TSC products and TSC assumes no liability for application assistance or the design of Purchasers’ products. 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 Version: C2103