APW7095/A 6-Channel DC/DC Converter Control IC Features General Description • The APW7095/A is a 6-channel, frequency-settable, voltage-mode, DC/DC control IC providing a complete power Supports for Synchronous Rectification (CH1, CH2, and CH5) • supply solution for high-performance portable digital cameras. The APW7095/A uses pulse-width-modulation Supports for Down or Up-Down Zeta Conversions (PWM) and synchronous rectification for high efficiency step-up, step-down, up-down, and inverting converters (CH1 and APW7095 CH2) • Supports for Up, Flyback, or Up-Down SEPIC with free input and output settings in 2 or 4-cell AA, 1-cell lithium-ion (Li+), and dual-battery designs. The APW7095/ Conversions (APW7095A CH2, CH3, APW7095 CH4, CH5, and CH6) • A incorporates error amplifiers, output short-circuit detection, under-voltage lockout, soft-start, and output Supports for Inverting Conversion switch control into a chip. The AP7095/A improves performance, component count, and size compared to (APW7095A CH4) • • Low Start-up Voltage : 1.4V (CH6) conventional multi-channel controllers. The APW7095/A has a power-good indicator (PGOOD) Power Supply Voltage Range that signals when CH1 output is within ±10% of the set voltage by monitoring IN1 pin. - CH1 to CH5 : 3.0V to 6.5V - CH6 : 2.4V to 6.5V • • • • • • • The APW7095/A is available in compact 48-pin plastic LQFP and TQFN packages. 1% Reference Voltage Accuracy Wide Operating Frequency 100kHz to 1MHz Applications Soft-Start Function (CH1 to 6) Power Good (PGOOD) Indicator for CH1 • • • Low Shutdown Current Output Short-Circuit Detections Lead Free and Green Devices Available Digital Camera Camcorder Hand-Held Instrument (RoHS Compliant) ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 1 www.anpec.com.tw APW7095/A Ordering and Marking Information Package Code QD : LQFP7x7-48 QB : TQFN7x7-48 Operating Ambient Temperature Range E : -30 to 85 °C Handling Code TB : Tape & Box TR : Tape & Reel Assembly Material L : Lead Free Device G : Halogen and Lead Free Device APW7095/A Assembly Material Handling Code Temperature Range Package Code XXXXX - Date Code APW7095 XXXXX APW7095 QD/QB : APW7095A QD/QB : XXXXX - Date Code APW7095A XXXXX Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD-020C for MSL classification at lead-free peak reflow temperature. ANPEC defines “Green” to mean lead-free (RoHS compliant) and halogen free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by weight). 1 SWOUT 2 48 47 46 45 44 43 42 41 40 39 38 37 PGOOD O U T6 O U T5-2 O U T5-1 PGND O U T4 PVCC O U T3 O U T2-2 O U T2-1 O U T1-2 O U T1-1 Pin Configuration D TC1 36 SWIN FB1 35 3 FB6 IN1 34 4 IN6 D TC2 33 FB2 32 5 CIN6 6 D TC5 APW7095/A IN2 31 30 C TL C TL1,2 C TL3 C TL4 C TL5 21 22 23 24 25 20 RT 19 26 IN4 VCC FB4 12 CSCP 11 GND 27 CT 18 VB 17 O U TA4 10 VREF 28 CS INA4 9 16 29 IN3 15 FB3 D TC4 IN5 INS4 8 14 FB5 13 7 D TC3 Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 2 IC APW7095 APW7095A CH1 Synchronous Step-down Synchronous Step-down CH2 Synchronous Up-down Synchronous Step-up CH3 Step-up Step-up CH4 Step-up Inverting CH5 Synchronous Step-up Synchronous Step-up CH6 Step-up Step-up www.anpec.com.tw APW7095/A Absolute Maximum Ratings Symbol VCC VPVCC Parameter Rating Unit VCC Supply Voltage (VCC to GND) -0.3 ~ 7 V PVCC Supply Voltage (PVCC to GND) -0.3 ~ 7 V -0.3 ~ VCC+0.3 V CTL, CTL1~5, SWIN Input Voltages -0.3 ~ 7 V PGOOD Pull High Voltage -0.3 ~ 7 V IN1~6, INA4, INS4, DTC1~5 Input Voltages Maximum Junction Temperature TSTG TSDR Storage Temperature Maximum Lead Soldering Temperature, 10 Seconds 150 o -65 ~ 150 o 260 o C C C Thermal Characteristics Parameter Symbol Typical Value Unit Junction-to-Ambient Resistance in Free Air θJA o 80 48-pin Plastic LQFP TQFN C/W Recommended Operating Conditions Symbol Parameter Conditions APW7095/A Unit Min. Typ. Max. CH6 1.4 - 6.5 CH6 2.4 5.0 6.5 CH1 to CH5 3.0 5.0 6.5 Reference Voltage Output Current VREF Pin -1 - 0 mA IB VB Output Current VB Pin -0.5 - 0 mA IN1 to IN5, INA4, INS4 Pins 0 - VCC VIN Input Voltage IN6 Pin 0 - VCC CTL Pin 0 - 6.5 OUT Pin (CH1 to CH5) - 2 15 OUT Pin (CH6) - 2 15 SWOUT Pin - 1 4 Oscillator Frequency 100 500 1000 kHz CT Timing Capacitor 47 100 560 pF RT Timing Resistor 8.2 18 100 kΩ CH1 to CH5 - 0.027 1.0 CH6 - 0.47 1.0 VCC Start-up Power Supply Voltage VCC Operating Voltage IREF VCTL IO FOSC Control Voltage Output Current CS V V Soft-Start Capacitor CCIN6 Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 V 3 V mA µF www.anpec.com.tw APW7095/A Recommended Operating Conditions (Cont.) Symbol Parameter CSCP Short Detection Capacitor CVB VB Pin Capacitor TA Operating Ambient Temperature APW7095/A Conditions Unit Min. Typ. Max. - 0.1 1.0 µF 0.082 0.1 - µF -30 25 85 o C Electrical Characteristics Refer to the typical application circuit. These specifications apply over, VCC = 5V and TA = -30 to 85°C, unless otherwise specified. Typical values refer to TA = 25°C. Symbol ICCS IPVCC ICC Parameter Test Conditions APW7095/A Typ. Max. Min. Unit - - 10 CTL = 0V - - 10 CTL, CTL1 to CTL5 = 5V - 1.8 5 Rising VCC 2.5 2.7 2.9 - 0.2 - Reset Voltage Falling VCC 1.2 1.3 1.4 Threshold Voltage Rising VCC 1.25 1.4 1.55 Reference Voltage IREF = 0mA 2.46 2.49 2.51 V Output Voltage Temperature Stability TA = -30°C to 85°C - 0.5 - % Input Stability VCC = 3.0V to 6.5V -10 - 10 mV Load Stability IREF = 0mA to –1mA -10 - 10 mV Short-Circuit Output Current VREF = 2V -25 -18 -1 mA - 50 100 mV -1.4 -1.0 -0.6 µA 0.65 0.70 0.75 V Input Standby Voltage - 50 100 mV Input Latch Voltage - 50 100 mV -1.4 -1.0 -0.6 µA VCC Standby Current CTL = 0V PVCC Standby Current VCC Nominal Supply Current µA mA UNDER VOLTAGE LOCKOUT VTH VH Threshold Voltage CH1 to CH5 VRST VTH CH6 Hysteresis Width V REFERENCE VOLTAGE VREF ∆VREF/ VREF Line Load IOS SOFT-START VSTB ICS Input Standby Voltage Soft-Start Charge Current SHORT-CIRCUIT DETECTION VTH VSTB VI ICSCP Threshold Voltage Input Source Current TRIANGULAR WAVE OSCILLATOR Oscillator Frequency CT=100pF, RT=18kΩ,VB=2V 450 500 550 kHz ∆f/fdv Frequency Stability for Voltage VCC = 3V to 6.5V - 1 10 % ∆f/fdt Frequency Stability for Temperature TA = -30°C to 85°C - 1 - % 1.23 1.25 1.27 V - 0.5 - % fOSC ERROR AMPLIFIER (CH1 to CH5) VTH Threshold Voltage FB = 1.45V ∆VT/ VT VT Temperature Stability TA = -30°C to 85°C Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 4 www.anpec.com.tw APW7095/A Electrical Characteristics (Cont.) Refer to the typical application circuit. These specifications apply over, VCC=5V and TA= -30 to 85°C, unless otherwise specified. Typical values refer to TA =25°C. Symbol Parameter APW7095/A Test Conditions Min. Typ. Max. Unit ERROR AMPLIFIER (CH1 to CH5) (Cont.) IB Input Bias Current IN = 0V (CH1 to CH5) -50 - - nA AV Voltage Gain DC 60 100 - dB BW Frequency Bandwidth AV = 0dB - 1.0 - MHz VOH Maximum Output Voltage 4.9 4.99 - V VOL Minimum Output Voltage - 3 50 mV Output Source Current FB = 1.45V - -25 -10 mA Output Sink Current FB = 1.45V 5 16 - mA Threshold Voltage FB = 0.55V 1.24 1.26 1.28 V VTH Temperature Stability TA = -30°C to 85°C - 0.5 - % IB Input Bias Current IN6 = 0V -50 - - nA AV Voltage Gain DC 60 75 - dB BW Frequency Bandwidth AV = 0dB - 1.0 - MHz VOH Maximum Output Voltage 4.9 4.99 - V VOL Minimum Output Voltage - 3 50 mV ISOURCE ISINK ERROR AMPLIFIER (CH6) VTH ∆VTH/ VTH Output Source Current FB = 0.55V - -50 -10 mA Output Sink Current FB = 0.55V 60 120 - µA Input Offset Voltage OUT = 1.25V -10 0 10 mV IB Input Bias Current IN = 0V -50 - - nA AV Voltage Gain DC 60 100 - dB BW Frequency Bandwidth AV = 0dB - 1.0 - MHz VOH Maximum Output Voltage 4.9 4.99 - V VOL Minimum Output Voltage - 3 50 mV ISOURCE ISINK INVERTED AMPLIFIER (CH4) VIO ISOURCE ISINK Output Source Current OUT = 1.25V - -26 -1.0 mA Output Sink Current OUT = 1.25V 5 16 - mA CH1 to CH5 0.97 1.00 1.03 V IN = 0V (CH1 to CH3, CH5) -50 - - INS4 = 0V (CH4) -50 - - 0.8 0.9 1.0 1.0 1.1 - - 1.8 1.9 -50 - - SHORT DETECT COMPARATOR (CH1 to CH5) VTH Threshold Voltage IB Input Bias Current nA SHORT DETECT COMPARATOR (CH6) VTH Threshold Voltage V PWM COMPARATOR (CH1 to CH5) VT0 Threshold Voltage VT100 IDTC Input Current Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 Duty = 0% Duty = 100% DTC = 0.4V (CH1 to CH5) 5 V nA www.anpec.com.tw APW7095/A Electrical Characteristics (Cont.) Refer to the typical application circuit. These specifications apply over, VCC=5V and TA= -30 to 85°C, unless otherwise specified. Typical values refer to TA =25°C. Symbol Parameter APW7095/A Test Conditions Min. Typ. Max. Unit PWM COMPARATOR (CH6) VT0 Threshold Voltage VTmax Dtr Maximum Duty Cycle Duty = 0% Duty = Max. CT = 100pF, RT = 18kΩ 0.2 0.3 - - 0.74 0.84 70 80 90 V % PWM CONTROLLER DRIVER FOR P-MOS (CH1, CH2, CH5) ISOURCE ISINK ROH Output Source Current Duty ≤ 5%, OUT = 0V - -130 -80 Output Sink Current Duty ≤ 5%, OUT = 5V 100 160 - OUT = -15mA - 18 30 OUT = 15mA - 10 20 Output ON Resistance ROL mA Ω PWM CONTROLLER DRIVER FOR N-MOS (CH1, CH2, CH5, CH6) ISOURCE ISINK ROH ROL Output Source Current Duty ≤ 5%, OUT = 0V - -130 -80 Output Sink Current Duty ≤ 5%, OUT = 5V 100 160 - OUT = -15mA - 18 30 OUT = 15mA - 10 20 Output ON Resistance mA Ω PWM CONTROLLER DRIVER FOR P-MOS (CH3, CH4) ISOURCE ISINK ROH Output Source Current Duty ≤ 5%, OUT = 0V - -290 -180 Output Sink Current Duty ≤ 5%, OUT = 5V 300 470 - OUT = -15mA - 7 15 OUT = 15mA - 4 10 SWOUT = ”L” level 1.2 - 6.5 SWOUT = ”H” level 0 - 0.5 SWIN = 5V - 2.5 20 µA Output ON Resistance ROL mA Ω OUTPUT SWITCH CONTROL (SW) VIH SW Input Voltage VIL ISWIN ISOURCE ISINK ROH ROL Input Current V Output Source Current SWOUT = 0V - -7 - mA Output Sink Current SWOUT = 5V - 19 - mA OUT = -4mA - 325 400 OUT = 4mA - 85 150 - 110 - Output ON Resistance Ω POWER GOOD VTH IN1 Upper Threshold Voltage Rising IN1 VTH IN1 Lower Threshold Voltage Rising IN1 VPGOOD Upper/Lower Hysteresis PGOOD Output Voltage % - 94 - % - 2 - % IPGOOD = 4mA - 0.17 0.8 V Active Mode 1.5 - 6.5 Standby Mode 0 - 0.5 CTL = 5V - 2.6 20 CONTROL BLOCK (CTL, CT1 to CT5) VIH VIL ICTL CTL Input Voltage Input Current Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 6 V µA www.anpec.com.tw APW7095/A Pin Description PIN I/O FUNCTION NO. NAME 1 SWOUT O Output Switch Control Circuit Output Pin. 2 SWIN I Output Switch Control Circuit Input Pin. 3 FB6 O CH6 Error Amplifier Output Pin. 4 IN6 I CH6 Inverted Input Pin of Error Amplifier. 5 CIN6 I CH6 Soft-Start Capacitor Connection Pin. Leave this pin “Open” to disable the soft-start function. 6 DTC5 I CH5 Dead Time Control Pin. Connect this pin to VREF directly when the dead-time control is not used. 7 FB5 O CH5 Error Amplifier Output Pin. 8 IN5 I CH5 Inverted Input Pin of Error Amplifier. 9 INA4 I CH4 Inverting Amplifier Input Pin. 10 OUTA4 O CH4 Inverting Amplifier Output Pin. Connect this pin to INA4 when the inverting amplifier is not used. 11 FB4 O CH4 Error Amplifier Output Pin. 12 IN4 I CH4 Inverted Input Pin of Error Amplifier. 13 INS4 I CH4 Inverted Input Pin of Short Detection Comparator. 14 DTC4 I CH4 Dead Time Control Pin. Connect this pin to VREF directly when the dead-time control is not used. 15 CS - CH1 to CH5 Soft-Start Capacitor Connection Pin. Leave this pin “Open” to disable the soft-start function. 16 VREF O Reference Voltage Output Pin. 17 GND P Reference Voltage and Control Circuit Ground Pin. 18 CSCP - Short-Circuit Detection Capacitor Connection Pin. Connect this pin to GND with the shortest distance to disable the timer-latch short-circuit protection circuit. 19 VCC P Reference Voltage and Control Circuit Power Supply Pin. 20 CTL I Power Supply and CH6 Control Pin. “H” Level: Operation Mode. “L” Level: Standby Mode 21 CTL1,2 I CH1 and CH2 Control Pin. “H” Level: Operation Mode. “L” Level: OFF Mode 22 CTL3 I CH3 Control Pin. “H” Level: Operation Mode. “L” Level: OFF Mode 23 CTL4 I CH4 Control Pin. “H” Level: Operation Mode. “L” Level: OFF Mode 24 CTL5 I CH5 Control Pin. “H” Level: Operation Mode. “L” Level: OFF Mode Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 7 www.anpec.com.tw APW7095/A Pin Description (Cont.) PIN I/O FUNCTION NO. NAME 25 RT - Oscillator Frequency Setting Resistor Connection Pin. 26 CT - Oscillator Frequency Setting Capacitor Connection Pin. 27 VB O Triangular Wave Oscillator Regulator Output Pin. 28 IN3 I CH3 Inverted Input Pin of Error Amplifier. 29 FB3 O 30 DTC3 I 31 IN2 I 32 FB2 O CH3 Error Amplifier Output Pin. CH3 Dead Time Control Pin. Connect this pin to VREF directly when the dead-time control is not used. CH2 Inverted Input Pin of Error Amplifier. CH2 Error Amplifier Output Pin. 34 IN1 I CH2 Dead Time Control Pin. Connect this pin to VREF directly when the dead-time control is not used. CH1 Inverted Input Pin of Error Amplifier. 35 FB1 O CH1 Error Amplifier Output Pin. 36 DTC1 I 37 38 OUT1-1 OUT1-2 O O 39 OUT2-1 O 40 OUT2-2 O 41 OUT3 O CH3 MOSFET Drive Pin. 42 PVCC P Drive Circuit Power Supply Pin. 43 OUT4 O 33 DTC2 I CH1 Dead Time Control Pin. Connect this pin to VREF directly when the dead-time control is not used. CH1 Main-side MOSFET Drive Pin. Connect OUT1-1 to the main MOSFET. CH1 MOSFET Drive Pin for Synchronous Rectifier. CH2 Main-side MOSFET Drive Pin. APW7095: Drive a p-channel MOSFET for a step-down converter. APW7095A: Drive an n-channel MOSFET for a step-up converter. CH2 MOSFET Drive Pin for Synchronous Rectifier 44 PGND P CH4 MOSFET Drive Pin. APW7095: Drive an n-channel MOSFET for a step-up converter. APW7095A: Drive a p-channel MOSFET for a inverting step-up/down converter. Drive Circuit Ground Pin. 45 46 OUT5-1 OUT5-2 O O CH5 Main-side MOSFET Drive Pin. Connect OUT5-1 to the main MOSFET. CH5 MOSFET Drive Pin for Synchronous Rectifier. 47 OUT6 O CH6 MOSFET Drive Pin. 48 PGOOD O Indicator Output Pin. This pin is an open-drain output used to indicate status of the CH1 output voltage. Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 8 www.anpec.com.tw APW7095/A Block Diagram PVCC D r iv e r 1 - 1 FB1 FB1 DTC1 Error Amp. IN1 CT2 OUT1-1 CH1 PWM Controller D r iv e r 1 - 2 C T L 1 ,2 OUT1-2 1 .2 5 V SC P Comp. 1 .2 5 V x 1 .1 IN 1 PGOOD Comp. 1 .0 V DTC1 1 .2 5 V x 0 .9 Driver 2-1 FB2 Drive FB2 Error IN2 DTC2 Amp. CT1 OUT2-1 2-1 1-1 CH2 PWM Controller Driver 2-2 C T L 1 ,2 Drive OUT2-2 1-2 1 .2 5 V SC P Comp. 1 .0 V DTC2 FB3 Driver 3 FB3 IN3 CH3 PWM Controller DTC3 Error Amp. CT2 OUT3 CTL3 1 .2 5 V SC P Comp. 1 .0 V DTC3 IN V Amp. INA4 OUTA 4 FB4 Driver 4 FB4 IN4 CH4 PWM Controller DTC4 Error CT1 Amp. CTL4 1 .2 5 V INS4 OUT4 SC P Comp. 1 .0 V DTC4 Driver 5-1 FB5 FB5 OUT5-1 DTC5 Error Amp. IN5 CH5 PWM Controller CT2 CTL5 Driver 5-2 OUT5-2 1 .2 5 V SC P Comp. 1 .0 V DTC5 FB6 FB6 6 2 .5 k CIN6 CT Soft-Start SC P C o n tr o l OUT6 ( M a x . D u ty=80%) SC P Comp. Po w e r Comp. 0 .9 V D r iv e r 6 CH6 PWM Controller Error Amp. 3 7 .5 k U VLO VB:2V IN6 0 .9 V S W OUT PGND CTL1,2 CTL3 CTL4 CTL5 CS CTL Logic 0 .8 V CT 0 .3 V 1 .8 V CT2 1 .1 V 1 .8 V CT1 S W IN VCC U VL O 1 .1 V Ref OSC Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 CTL 2 .4 9 V 2V CS Po w e r O N /O F F CTL SC P VB RT CT CSCP 9 VREF GND www.anpec.com.tw APW7095/A Typical Operating Characteristics Power Supply Current vs. Power Supply Voltage Reference Voltage Current vs. Power Supply Voltage 5 5 IREF=0mA TA=25°C 4 CTL=CTL1,2=CTL3=CTL4=CTL5=5V 3 2 1 CTL=CTL1,2=CTL3=CTL4=CTL5=5V 3 2 1 0 0 0 1 2 3 4 5 6 7 0 8 Reference Voltage vs. Ambient Temperature 2.52 2 3 4 5 6 7 8 Reference Voltage vs. Control Voltage 5 VCC=5V TA=25°C CTL=CTL1,2=CTL3=CTL4=CTL5=5V IREF=0mA Reference Voltage, VREF(V) Reference Voltage, VREF(V) 2.54 1 Power Supply Voltage, VCC(V) Power Supply Voltage, VCC(V) 2.56 TA=25°C 4 Reference Voltage, VREF(V) Power Supply Current, ICC(mA) VCC=5V 2.50 2.48 2.46 2.44 VCC=5V TA=25°C IREF=0mA 4 3 2 1 0 -40 -20 0 20 40 60 80 100 0 Ambient Temperature, TA(°C) Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 1 2 3 4 5 Control Voltage, VCTL(V) 10 www.anpec.com.tw APW7095/A Typical Operating Characteristics (Cont.) Control Current vs. Control Voltage Triangular Wave Upper & Lower Threshold Voltages vs. Oscillator Frequency 5 1.0 Upper & Lower Threshold Voltage, VCT(V) Control Current, ICTL(µA) VCC=5V TA=25°C 4 3 VTL, CTL1,2~CTL5 2 1 0 0 1 2 3 4 5 6 7 8 0.9 0.8 Upper 0.7 VCC=5V 0.6 TA=25°C RT=18kΩ 0.5 0.4 0.3 Lower 0.2 0.1 0.0 0 Control Voltage, VCTL(V) 400 600 800 1000 1200 Oscillator Frequency, fosc(kHz) Oscillator Frequency vs. Timing Capacitor Oscillator Frequency vs. Timing Resistor 10000 10000 VCC=5V VCC=5V TA=25°C TA=25°C Oscillator Frequency, fosc(kHz) Oscillator Frequency, fosc(kHz) 200 1000 RT=4.3kΩ 100 RT=18kΩ RT=100kΩ 1000 CT=47pF 100 CT=100pF CT=1000pF CT=470pF CT=220pF 10 10 10 100 1000 10000 1 100 1000 Timing Resistor, RT(kΩ) Timing Capacitor, CT(pF) Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 10 11 www.anpec.com.tw APW7095/A Typical Operating Characteristics (Cont.) Triangular Wave Upper & Lower Threshold Voltages vs. Ambient Temperature 1.0 Oscillator Frequency vs. Ambient Temperature 540 VCC=5V CTL=CTL1,2=CTL3=CTL4=CTL5=5V RT=18kΩ CT=100pF Upper & Lower Threshold Voltage, VCT(V) Oscillator Frequency, fosc(kHz) 560 520 500 480 460 440 -40 -20 0 20 40 60 80 100 0.8 Upper 0.7 VCC=5V RT=18kΩ CT=100pF 0.6 0.5 0.4 Lower 0.3 0.2 0.1 0.0 -40 -20 0 20 40 60 80 100 Ambient Temperature, TA (°C) Ambient Temperature, TA (°C) Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 0.9 12 www.anpec.com.tw APW7095/A Typical Application Circuit vvv 1.VBAT=2.7V~6V (4-Cell Battery or 1-Cell LI-ION) for 2 Buck and 4 Boost Converter (Using APW7095) VBAT 7.5V/20mA D7 APW7095 C28 22µF L6 22µH VBAT APM2301A OUT1-1 SS12 C27 22µF Q11 OUT4 CH4 Boost Controller Driver APM2300A R28 15k CH1 Buck Controller Driver OUT1-2 DTC1 1.25V Vref FB4 IN4 L5 22µH 1.25V Vref C4 22µF Q3 L2 22µH 10µF C5 APM2300A C23 22µF R24 300K OUT5-2 Q9 APM2301A R22 C22 1K VREF CH5 Boost Controller Driver CH2 Buck Controller Driver 22µH C7 FB2 IN5 18K R21 24K 5V R20 47K C21 22µF 22µH R7 R10 47K T1 C8 22µF SS12 D3 D5 APM2301A C19 22µF Q7 R18 309K C20 22µF D4 APM2312 C18 R17 R19 100K APM2300A Q6 SS12 1K OUT6 Driver FB3 IN6 IN3 CIN6 Q5 C12 1.25V Vref SWOUT 0.1µF 4700PF C10 22µF CTL VCC CTL3 PVCC R11 165K R12 1K VREF R14 CTL1,2 15K 18K R15 47K CTL4 SWIN 13 C14 100PF C13 0.22µF GND CT R16 30K VREF C15 CSCP C16 0.1µF RT VB CS PGND CTL5 0.1µF Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 C9 22µF 15V/20mA SS12 R13 DTC3 1.26V Vref 0.33µF -10V/20mA C11 OUT3 Driver FB6 0.1µF C17 CH3 Boost Controller CH6 Boost Controller 15K R9 VREF VBAT L4 24K 1K DTC2 1.25V Vref 1.25V Vref C6 100µF R6 R8 0.1µF IN2 DTC5 D2 SS12 Q4 OUT2-2 FB5 0.1µF R23 100K 3.3V/300mA L3 OUT5-1 APM2300A Q10 5V VBAT APM2301A OUT2-1 D6 SS12 Q8 15K 24K R5 PGOOD 47K VREF DTC4 VBAT R26 24K R25 47K C25 22µF R2 1K R4 VREF INS4 R27 0 C24 22µF OUTA4 R1 6.8K R3 0.1µF IN1 C26 0.1µF R29 1K C2 100µF D1 SS0520 Q2 C3 FB1 INA4 1.8V/300mA 22µH APM2300A R31 75k 5V/300mA APM2301A C1 22µF L1 Q1 VREF www.anpec.com.tw APW7095/A Typical Application Circuit(Cont.) 2.VBAT=1.4V~3V (2-Cell Battery) for 1 Buck , 1 Inverting and 4 Boost Converter s (Using APW7095A) VBAT C28 Q11 APM2301A -7.5V/20mA 3.3V ( from CH5 ) APW7095A 22µF APM2301A Q1 OUT1-1 SS12 C27 22µF L5 22µH R31 60k OUT4 CH4 Inverting Controller Driver CH1 Buck Controller Driver OUT1-2 C3 R28 OUTA4 FB4 IN4 10k R4 VREF VREF 0 47K R26 24K R25 47K C25 22µF L4 3.3V/300mA APM2301A 22µH D2 SS12 4V/300mA Q4 OUT2-1 C5 OUT5-1 1µF APM2300A Q10 APM2300A C23 22µF R24 24K OUT5-2 Q9 APM2301A R22 C22 1K 0.1µF VREF 15K OUT2-2 Driver FB2 IN5 IN2 1.25V Vref C7 18K R10 47K R20 47K 5V C8 22µF C21 22µF 22µH Q7 R18 C20 22µF C18 R17 100K OUT6 APM2312 309K R19 APM2300A Q6 SS12 1K 0.1µF C17 CH3 Boost Controller CH6 Boost Controller Driver OUT3 Driver FB6 FB3 IN6 IN3 0.1µF CTL SWOUT CTL1,2 VCC CTL3 PVCC C10 22µF R12 1K VREF 15K 18K R15 47K CTL4 SWIN 14 C14 100PF C13 0.22µF GND CT R16 30K VREF C15 0.1µF CSCP C16 0.1µF RT CS VB CTL5 PGND Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 SS12 R11 165K R14 DTC3 1.25V Vref 1.26V Vref 0.33µF D4 C11 1µF R13 CIN6 18V/3mA C9 22µF 15V/20mA SS0520 Q5 C12 3.3V D8 SS0520 D3 L6 22µH D5 C19 22µF 15K R9 VREF R21 24K APM2301A R7 1K 0.1µF DTC2 1.25V Vref 33K R8 VBAT L3 R6 APM2301A FB5 DTC5 C6 100µF Q3 CH2 Boost Controller CH5 Boost Controller Driver R23 5V C4 22µF L2 D6 SS12 Q8 VBAT 1.25V Vref DTC4 VBAT 22µH 15K 24K R5 PGOOD INS4 R27 R2 1K DTC1 1.25V Vref R1 6.8K R3 0.1µF IN1 C26 0.1µF R29 1K C2 100µF D1 SS0520 Q2 FB1 INA4 10k 1.8V/300mA 22µH APM2300A R30 C24 22µF C1 22µF L1 D7 VREF www.anpec.com.tw APW7095/A Function Description Channel Control Function General The APW7095/A provides voltage-mode feedback controls for six DC/DC PWM converters(CH1 to CH6). Each The channel control function turns on/off one or more channels depending on the states (“H” or “L” level) at CTL, CTL1,2 to CTL5 pins. The on/off control logic is channel operates with an error amplifier, PWM comparator, short-circuit comparator, ON/OFF control, and output shown as the following table: driver. An internal temperature-compensated voltage provides reference voltages for each channel. An triangular- Channel on/off Setting Table Vol tage Level at CTL Pin wave oscillator(CT) with a timing resistor and capacitor generates triangular waves to each channel. A inverting CTL CTL1,2 CTL3 CTL4 CTL5 L x x x L amplifier(CH4) cooperates with the error amplifier for an inverting converter (with negative output voltage) . L H L L Reference Voltage H H The APW7095 outputs a temperature- compensated ref- H L erence voltage(2.49V) at VREF pin. It is regulated from the voltage at VCC pin and can source current of max. L H H 1mA to external loads. It also supplies bias for the IC’s internal circuitry. L H H x L H L H L H L H L H L H L H L H Channel ON/OFF State Power CH1 CH3 CH4 CH6 /CH6 /CH2 OFF( Standby State) OFF OFF ON OFF OFF ON ON OFF OFF OFF ON ON OFF ON ON ON OFF OFF ON OFF OFF ON ON ON OFF OFF ON ON OFF ON ON Triangular-wave Oscillator MOSFET Drive Circuits The triangular-wave oscillator is designed to generates a triangular oscillation signal (CT) with amplitude of APW7095/A uses push-pull configuration at output of each MOSFET driver for providing large drive current to MOSFET 0.3V~0.8V at CT pin, providing signal to CH6. The oscillator frequency is settable from 100kHz to 1MHz and set by gate. The following table shows the MOSFETs connected to the drivers: a timing resistor and a timing capacitor connected respectively from RT and CT pins to ground. Additional two IC triangular oscillation signals (CT1 and CT2) are also internally generated with amplitude of 1.1V~1.8V. The CT1 CH1 is in phase with the CT to the PWM comparators of CH2 and CH4; the CT2 is out of phase with the CT to the PWM CH2 comparators of CH1, CH3, and CH5. CH3 CH4 Error Amplifier CH5 The error amplifier is designed with unit-gain-bandwidth of 1MHz and to satisfy wide application requirements. It CH6 APW7095 OUT1-1 : PMOS OUT1-2 : NMOS OUT2-1 : PMOS OUT2-2 : NMOS OUT3 : NMOS OUT4 : NMOS OUT5-1 : NMOS OUT5-2 : PMOS OUT6 : NMOS APW7095A OUT1-1 : PMOS OUT1-2 : NMOS OUT2-1 : NMOS OUT2-2 : PMOS OUT3 : NMOS OUT4 : PMOS OUT5-1 : NMOS OUT5-2 : PMOS OUT6 : NMOS Timer-Latch Short-Circuit Protection Circuit works with enternal resistor-capacitor network for each converter’s feedback compensation. The loop gain can The short-circuit protection comparator in each channel (CH1 to CH5) monitors converter’s output voltage via in- be set by connecting a feedback resistor and capacitor from the output pin(FB) to inverted input pin of the error put pin of error amplifier. In CH6, the short-circuit comparator detects the voltage at output of error amplifier. As amplifier for stable operations. Inverting Amplifier (Inv Amp) any detected voltages of CH1 to CH5 falls below 1.0V or the detected voltage of CH6 is larger than 0.9V, the timer The inverting amplifier detects the inverting DC/DC converter output voltage (as a negative voltage) and outputs a circuits is actuated to start charging the external capacitor CSCP connected from CSCP pin to ground. When the control signal to the error amp. rising voltage of CSCP reaches 0.7V, the IC turns off all Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 15 www.anpec.com.tw APW7095/A Function Description (Cont.) Input CTL CTL1,2 CTL3 CTL4 CTL5 Timer-Latch Short-Circuit Protection Circuit (Cont.) external MOSFETs and pulls up the voltage at SWOUT pin. Then the IC is latched. Applying a signal from “L” to Output 2V VB “H” to CTL pin enables operation again. The short-circuit detection function remains working during soft-start op- 0.9V CIN6 eration on CH1 to CH5. CH6 Output Voltage (Vo6) 2.49V Under-Voltage Lockout (UVLO) Circuit VREF 1.25V CS The under-voltage lockout circuit monitors the supply voltage at VCC pin to prevent wrong logic control. The IC CH1 to CH5 Output Voltages (Vo1 to Vo5) starts operation after the supply voltage rises above it’s rising threshold. As the supply voltage falls below it’s t (3) (1) (2) (4) (1) to (2) : CH6 Soft-Start Interval (3) : VREF Output start (3) to (4) : CH1 to CH5 Soft-Start Interval falling threshold, the IC turns off the external MOSFETs and pulls up the voltage at SWOUT pin. Figure 1 Soft-Start Waveforms Input Soft-Start Operation CTL The soft-start function controls the output voltage rate of rise to limit the current surge at start-up. For CH1 to CH5, CTL1,2 CTL3 CTL4 CTL5 the soft-start interval is programmed by the soft-start capacitor, CS connected from CS pin to ground and Output 2V VB charged by an internal 1µA current source. For CH6, a 0.9V soucing current from the internal resistor-divider charges the capacitor, CCIN6 connected from CIN6 pin to ground, CIN6 CH6 Output Voltage (Vo6) 2.49V providing soft-start control. Figure 1 and 2 show the soft-start processes. In figure 1, when all control pins (CTL, CTL1,2 to CTL 5) are driven VREF 1.25V CS 1.25V CH1 to CH3 Output Voltages (Vo1 to Vo3) high (“H” level) at the same time, the voltage at CIN6 pin starts to rise up by charging the capacitor CCIN6 , starting CH4 to CH5 Output Voltages (Vo4 to Vo5) a soft-start operation on CH6. After the rising voltage at CIN6 reaches 0.9V, the reference voltage starts to regu- (1) (3) (2) (4) (5) (6)' (6) (7) t (7)' (1) to (2) : CH6 soft-start interval (3) : VREF Output start (4) to (5) : CH1 to CH3 soft-start Interval (6) to (7) : CH4, CH5 soft-start Interval (6)' to (7)' : CH4(CH5) soft start interval as CTL4 (CTL5) go "H" from "L" during CH1 to CH3 soft start interval late and the internal source current starts to charge the CS , starting a soft-start operation on CH1 to CH5. During soft-start interval, the error amplifiers compares the CH1 to CH5 output voltage to the voltage at the CS pin. When Figure 2 Soft-Start Waveforms any control pins (CH1,2 to CH5) go “H” from “L” during the soft-start interval (CH1 to CH5), the output rises rapidly to Output Switch Control Circuit The output switch control circuit outputs a signal to control external p-channel MOSFETs for preventing reactive follow the rising voltage at CS pin. current flow to external step-up circuits on CH5 and CH6. When a “H” level signal is applied to SWIN pin after releasing the UVLO and the voltage at CIN6 pin rises above 0.9V(typical), the IC pulls low the voltage at SWOUT pin, turning on the external p-channel MOSFETs to generate output voltages. Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 16 www.anpec.com.tw APW7095/A Application Information (2) CH4 Soft-Start Interval Settings Vo (V) = - 1.25V ⋅ The CH6 soft-start time depends on the capacitor CCIN6 and is determined as the following equation: ts (S) = - R1 R2 VO CCIN6 (F) ⋅ 37.5 (k Ω ) ⋅ 62.5 (k Ω ) V CIN6 (V) ⋅ ln1 − 100 (k Ω ) 1.26 (V) R1 INV Amp. 4 INA4 R2 VB(2V) V CIN6 OUTA4 Error Amp. 6 R3 CIN6 1.2 5V 62.5k CCIN6 Error Amp. 4 IN4 37.5k (3) CH6 The soft-start time until CH6 output voltage reaches 95% of the set voltage is determined as the following equation: R1 Vo (V) = 1.26V ⋅ 1 + R2 VO ts (S) ≈ 0.07 ⋅ C CIN6 ( µ F) VB(2V) R1 On CH1 to CH5, the soft-start time depending on the capacitor CS determined as the following equation : IN6 Error Amp. 6 37.5k R2 ts (S) ≈ 1.25 ⋅ C S ( µ F) CIN6 62.5k Triangular Oscillator Frequency Setting Time Constant Setting for Timer-Latch Short-Circuit Protection Circuit The triangular oscillator frequency set by the timing capacitor (CT) connected to the CT pin and the timing resistor (RT) connected to the RT pin determined as the fol- The time constant for timer-latch short-circuit protection is set by the capacitor CSCP and determined as the fol- lowing equation: f OSC (kHz) ≈ 900000 RT (k Ω ) ⋅ CT (pF) lowing equation : tPE (S) = 0.70 ⋅ C SCP ( µ F) Output Voltage Settings Dead-Time Setting The output voltage is set by the external resistor-divider connected with converter output, error amplifier input, and The dead-time control pin (DTC) is designed to set the maximum ON duty of the main-side MOSFET. When the device is set for step-up inverted output based on the ground. (1) CH1 to CH3, CH5 step-up or step-up/down Zeta method or flyback method, the FB pin voltage may reach and exceed the triangular R1 Vo (V) = 1.25V ⋅ 1+ R2 wave voltage due to load fluctuation. If this is the case, the output MOSFET is fixed to a ON duty of 100 %. To prevent VO R1 Error Amp. 1 IN1 this, set the maximum duty of the output MOSFET. Connecting a resistor- divider between VREF, DTC and GND pins provides a voltage VDTC to DTC pin. When the the voltage at the DTC pin is higher than the triangular wave R2 1.25 V voltage (CT1/2), the output transistor is turned on. The maximum duty is calculated as the following equation: Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 17 www.anpec.com.tw APW7095/A Application Information (Cont.) Dead-Time Setting (Cont.) ON Duty (max) = VDTC (V) = VDTC - 1.1 V ⋅ 100 (%) 0.7 V R2 ⋅ VREF R1 + R2 VREF R1 VDTC DTC1 R2 where VREF is the output of the reference voltage (2.49V typical) at VREF pin. The amplitude of the triangular waves CT1 and CT2 are typically 0.7V from 1.1V to 1.8V. Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 18 www.anpec.com.tw APW7095/A Package Information D LQFP7x7-48 E1 E A e 0.25 c A1 b A2 D1 S Y M B O L θ L GAUGE PLANE SEATING PLANE LQFP7x7-48 MILLIMETERS MIN. INCHES MAX. A MIN. MAX. 1.60 0.063 A1 0.05 0.15 0.002 0.006 A2 1.35 1.45 0.053 0.057 b 0.17 0.27 0.007 0.011 c 0.09 0.20 0.004 0.008 D 8.80 9.20 0.346 0.362 D1 6.90 7.10 0.272 0.280 E 8.80 9.20 0.346 0.362 E1 6.90 7.10 0.272 0.280 e 0.50 BSC 0.020 BSC L 0.45 0.75 0 0o 7o 0.018 0o 0.030 7o Note : 1. Followed from JEDEC MS-026 BBC. 2. Dimension "D1" and "E1" do not include mold protrusions. Allowable protrusions is 0.25 mm per side. "D1" and "E1" are maximun plasticbody size dimensions including mold mismatch. Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 19 www.anpec.com.tw APW7095/A Package Information TQFN7x7-48 D E A b Pin 1 A1 D2 A3 L K E2 Pin 1 Corner e S Y M B O L TQFN7x7-48 MILLIMETERS INCHES MIN. MAX. 0.80 0.028 0.031 0.05 0.000 0.002 0.18 0.30 0.007 0.012 D 6.90 7.10 0.272 0.280 D2 5.50 5.80 0.217 0.228 E 6.90 7.10 0.272 0.280 E2 5.50 5.80 0.217 0.228 0.45 0.014 MIN. MAX. A 0.70 A1 0.00 A3 b 0.20 REF e 0.008 REF 0.50 BSC L 0.35 K 0.20 0.020 BSC 0.018 0.008 Note : 1. Followed from JEDEC MO-220 WKKD-4. Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 20 www.anpec.com.tw APW7095/A Carrier Tape & Reel Dimensions P0 P2 P1 A B0 W F E1 OD0 K0 A0 A OD1 B B T SECTION A-A SECTION B-B H A d T1 Application TQFN7x7-48 A H T1 330.0±2.00 50 MIN. P0 P1 P2 4.0±0.10 12.0±0.10 2.0±0.10 C d D 1.5 MIN. 20.2 MIN. D0 D1 T A0 B0 K0 1.5+0.10 -0.00 1.5 MIN. 0.6+0.00 -0.40 7.30±0.20 7.30±0.20 1.3±0.20 16.4+2.00 13.0+0.50 -0.00 -0.20 W E1 16.0±0.30 1.75±0.10 F 5.5±0.10 (mm) Devices Per Unit Package Type Unit Quantity TQFN7x7-48 Tape & Reel 2500 Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 21 www.anpec.com.tw APW7095/A Taping Direction Information (T)QFN7x7 USER DIRECTION OF FEED Reflow Condition (IR/Convection or VPR Reflow) tp TP Critical Zone TL to TP Temperature Ramp-up TL tL Tsmax Tsmin Ramp-down ts Preheat t 25°C to Peak 25 Time Reliability Test Program Test item SOLDERABILITY HOLT PCT TST ESD Latch-Up Method MIL-STD-883D-2003 MIL-STD-883D-1005.7 JESD-22-B, A102 MIL-STD-883D-1011.9 MIL-STD-883D-3015.7 JESD 78 Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 22 Description 245°C, 5 sec 1000 Hrs Bias @125°C 168 Hrs, 100%RH, 121°C -65°C~150°C, 200 Cycles VHBM > 2KV, VMM > 200V 10ms, 1tr > 100mA www.anpec.com.tw APW7095/A Classification Reflow Profiles Profile Feature Average ramp-up rate (TL to TP) Preheat - Temperature Min (Tsmin) - Temperature Max (Tsmax) - Time (min to max) (ts) Time maintained above: - Temperature (TL) - Time (tL) Peak/Classification Temperature (Tp) Time within 5°C of actual Peak Temperature (tp) Ramp-down Rate Sn-Pb Eutectic Assembly Pb-Free Assembly 3°C/second max. 3°C/second max. 100°C 150°C 60-120 seconds 150°C 200°C 60-180 seconds 183°C 60-150 seconds 217°C 60-150 seconds See table 1 See table 2 10-30 seconds 20-40 seconds 6°C/second max. 6°C/second max. 6 minutes max. 8 minutes max. Time 25°C to Peak Temperature Note: All temperatures refer to topside of the package. Measured on the body surface. Table 1. SnPb Eutectic Process – Package Peak Reflow Temperatures 3 Package Thickness Volume mm <350 <2.5 mm 240 +0/-5°C ≥2.5 mm 225 +0/-5°C 3 Volume mm ≥350 225 +0/-5°C 225 +0/-5°C Table 2. Pb-free Process – Package Classification Reflow Temperatures 3 3 3 Package Thickness Volume mm Volume mm Volume mm <350 350-2000 >2000 <1.6 mm 260 +0°C* 260 +0°C* 260 +0°C* 1.6 mm – 2.5 mm 260 +0°C* 250 +0°C* 245 +0°C* ≥2.5 mm 250 +0°C* 245 +0°C* 245 +0°C* *Tolerance: The device manufacturer/supplier shall assure process compatibility up to and including the stated classification temperature (this means Peak reflow temperature +0°C. For example 260°C+0°C) at the rated MSL level. Customer Service Anpec Electronics Corp. Head Office : No.6, Dusing 1st Road, SBIP, Hsin-Chu, Taiwan Tel : 886-3-5642000 Fax : 886-3-5642050 Taipei Branch : 2F, No. 11, Lane 218, Sec 2 Jhongsing Rd., Sindian City, Taipei County 23146, Taiwan Tel : 886-2-2910-3838 Fax : 886-2-2917-3838 Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2008 23 www.anpec.com.tw