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 supply solution for high-performance portable digital cameras. The APW7095/A uses pulse-widthmodulation (PWM) and synchronous rectification for high efficiency step-up, step-down, up-down and inverting converters with free input and output settings in 2 or 4-cell AA, 1-cell lithium-ion (Li+), and dualbattery designs. The APW7095/A incorporates error amplifiers, output short-circuit detection, under-voltage lockout, soft-start and output switch control into a chip. The AP7095/A improves performance, component count, and size compared to conventional multichannel controllers. The APW7095/A has a power-good indicator (PGOOD) that signals when CH1 output is within ±10% of the set voltage by monitoring IN1 pin. The APW7095/A is available in compact 48-pin plastic LQFP and TQFN packages. Supports for synchronous rectification (CH1, CH2 and CH5) • Supports for down or up-down Zeta conversions (CH1 and APW7095 CH2) • Supports for up, flyback or up-down SEPIC conversions (APW7095A CH2, CH3, APW7095 CH4, CH5 and CH6) • Supports for Inverting conversion (APW7095A CH4) • • Low Start-up Voltage : 1.4V (CH6) Power Supply Voltage Range - CH1 to CH5 : 3.0V to 6.5V - CH6 : 2.4V to 6.5V • • • • • • • 1% Reference Voltage Accuracy Wide Operating Frequency 100kHz to 1MHz Soft-Start Function (CH1 to 6) Power Good (PGOOD) Indicator for CH1 Low Shutdown Current Output Short-Circuit Detections Lead Free Available (RoHS Compliant) Applications • • • Digital Camera Camcorder Hand-held Instrument 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.3 - Jul., 2005 1 www.anpec.com.tw APW7095/A Ordering and Marking Information Package Code QD : LQFP-48 QB : TQFN-48 Operating Ambient Temp. Range E : -30 to 85 °C Handling Code TY : Tray Lead Free Code L : Lead Free Device Blank : Original Device APW7095/A Lead Free Code Handling Code Temp. Range Package Code XXXXX - Date Code APW7095 QD/QB : APW7095 XXXXX APW7095A QD/QB : APW7095A XXXXX XXXXX - Date Code Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with RoHS and compatible with both SnPb and lead-free soldiering operations. 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. 48 47 46 45 44 43 42 41 40 39 38 37 PGOOD OUT6 OUT5-2 OUT5-1 PGND OUT4 PVCC OUT3 OUT2-2 OUT2-1 OUT1-2 OUT1-1 Pinouts DTC1 36 SWIN FB1 35 3 FB6 IN1 34 4 IN6 DTC2 33 5 CIN6 FB2 32 6 DTC5 1 SWOUT 2 APW7095/A IN2 31 30 7 FB5 DTC3 8 IN5 FB3 29 INA4 IN3 28 VB 27 26 25 9 10 OUTA4 DTC4 CS VREF GND CSCP VCC CTL CTL1,2 CTL3 CTL4 CTL5 15 16 17 18 19 20 21 22 23 24 RT INS4 IN4 14 FB4 12 13 11 CT Copyright ANPEC Electronics Corp. Rev. A.3 - Jul., 2005 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 Pin Description PIN I/O DESCRIPTION O I O I Output Switch Control Circuit Output Pin. Output Switch Control Circuit Input Pin. CH6 Error Amplifier Output Pin. CH6 Inverted Input Pin of Error Amplifier. CH6 Soft-Start Capacitor Connection Pin. Leave this pin “Open” to disable the soft-start function. CH5 Dead Time Control Pin. Connect this pin to VREF directly when the dead-time control is not used. CH5 Error Amplifier Output Pin. CH5 Inverted Input Pin of Error Amplifier. CH4 Inverting Amplifier Input Pin. No. 1 2 3 4 Name SWOUT SWIN FB6 IN6 5 CIN6 I 6 DTC5 I 7 8 9 FB5 IN5 INA4 O I I 10 OUTA4 O 11 12 13 FB4 IN4 INS4 O I I 14 DTC4 I 15 CS - 16 17 VREF GND O P 18 CSCP - 19 VCC P 20 CTL I 21 CTL1,2 I 22 CTL3 I 23 CTL4 I 24 CTL5 I CH4 Inverting Amplifier Output Pin. Connect this pin to INA4 when the inverting amplifier is not used. CH4 Error Amplifier Output Pin. CH4 Inverted Input Pin of Error Amplifier. CH4 Inverted Input Pin of Short Detection Comparator. CH4 Dead Time Control Pin. Connect this pin to VREF directly when the dead-time control is not used. CH1 to CH5 Soft-Start Capacitor Connection Pin. Leave this pin “Open” to disable the soft-start function. Reference Voltage Output Pin. Reference Voltage and Control Circuit Ground Pin. Short-Circuit Detection Capacitor Connection Pin. Connect this pin to GND with the shortest distance to disable the timer-latch short-circuit protection circuit. Reference Voltage and Control Circuit Power Supply Pin. Power Supply and CH6 Control Pin. “H” Level: Operation Mode. “L” Level: Standby Mode CH1 and CH2 Control Pin. “H” Level: Operation Mode. “L” Level: OFF Mode CH3 Control Pin. “H” Level: Operation Mode. “L” Level: OFF Mode CH4 Control Pin. “H” Level: Operation Mode. “L” Level: OFF Mode CH5 Control Pin. “H” Level: Operation Mode. “L” Level: OFF Mode Copyright ANPEC Electronics Corp. Rev. A.3 - Jul., 2005 3 www.anpec.com.tw APW7095/A Pin Description (Cont.) PIN I/O DESCRIPTION O I O Oscillator Frequency Setting Resistor Connection Pin. Oscillator Frequency Setting Capacitor Connection Pin. Triangular Wave Oscillator Regulator Output Pin. CH3 Inverted Input Pin of Error Amplifier. 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. 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. CH1 Error Amplifier Output Pin. 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 CH3 MOSFET Drive Pin. Drive Circuit Power Supply Pin. 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. CH5 Main-side MOSFET Drive Pin. Connect OUT5-1 to the main MOSFET. CH5 MOSFET Drive Pin for Synchronous Rectifier. CH6 MOSFET Drive Pin. Indicator Output Pin. This pin is an open-drain output used to indicate status of the CH1 output voltage. No. 25 26 27 28 29 Name RT CT VB IN3 FB3 30 DTC3 I 31 32 IN2 FB2 I O 33 DTC2 I 34 35 IN1 FB1 I O 36 DTC1 I 37 OUT1-1 O 38 OUT1-2 O 39 OUT2-1 O 40 41 42 OUT2-2 OUT3 PVCC O O P 43 OUT4 O 44 PGND P 45 OUT5-1 O 46 47 OUT5-2 OUT6 O O 48 PGOOD O Copyright ANPEC Electronics Corp. Rev. A.3 - Jul., 2005 4 www.anpec.com.tw APW7095/A Block Diagram PVCC Driver 1-1 FB1 FB1 DTC1 Error Amp. IN1 CT2 OUT1-1 CH1 PWM Controller Driver 1-2 CTL1,2 OUT1-2 1.25V SCP Comp. 1.25V x1.1 IN1 PGOOD Comp. 1.0V DTC1 1.25V x0.9 Driver 2-1 FB2 Drive FB2 DTC2 Error IN2 Amp. CT1 OUT2-1 2-1 1-1 CH2 PWM Controller Driver 2-2 CTL1,2 Drive OUT2-2 1-2 1.25V SCP Comp. 1.0V DTC2 FB3 FB3 DTC3 Error Amp. IN3 CT2 Driver 3 CH3 PWM Controller OUT3 CTL3 1.25V SCP Comp. 1.0V DTC3 INV Amp. INA4 OUTA4 FB4 Driver 4 FB4 DTC4 Error IN4 CT1 Amp. CTL4 1.25V INS4 CH4 PWM Controller OUT4 SCP Comp. 1.0V DTC4 Driver 5-1 FB5 FB5 OUT5-1 DTC5 Error Amp. IN5 CT2 CTL5 CH5 PWM Controller Driver 5-2 OUT5-2 1.25V SCP Comp. 1.0V DTC5 FB6 Error Amp. 37.5k FB6 62.5k CIN6 CT Soft-Start SCP Control OUT6 (Max. Duty=80%) SCP Comp. Power Comp. 0.9V Driver 6 CH6 PWM Controller UVLO VB:2V IN6 0.9V SWOUT PGND CTL1,2 CTL3 CTL4 CTL5 CS CTL Logic 0.8V CT 0.3V 1.8V CT2 1.1V 1.8V CT1 SWIN VCC UVLO 1.1V Ref OSC Copyright ANPEC Electronics Corp. Rev. A.3 - Jul., 2005 CTL 2.49V 2V CS Power ON/OFF CTL SCP VB RT CT CSCP 5 VREF GND 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 IN1~6, INA4, INS4, DTC1~5 Input Voltages Maximum Junction Temperature TSTG Storage Temperature TSDR Maximum Soldering Temperature, 10 Seconds V 150 o -65 ~ 150 o 300 o C C C Thermal Characteristics Symbol θJA Parameter Value Junction-to-Ambient Resistance in free air 48-pin Plastic QFP QFN 80 Unit o C/W Recommended Operating Conditions Symbol Parameter VCC Start-up Power Supply Voltage VCC Operating Voltage IREF IB Reference Voltage Output Current VB Output Current VIN Input Voltage VCTL Control Voltage IO Output Current FOSC CT RT CS CCIN6 CSCP Condition CH6 CH6 CH1 to CH5 VREF Pin VB Pin IN1 to IN5, INA4, INS4 Pins IN6 Pin CTL Pin OUT Pin (CH1 to CH5) OUT Pin (CH6) SWOUT Pin Oscillator Frequency Timing Capacitor Timing Resistor Soft-Start Capacitor CH1 to CH5 CH6 Short Detection Capacitor CVB VB Pin Capacitor TA Operating Ambient Temperature Copyright ANPEC Electronics Corp. Rev. A.3 - Jul., 2005 6 APW7095/A Min. Typ. Max. 6.5 1.4 2.4 5.0 6.5 3.0 5.0 6.5 -1 0 0 -0.5 0 VCC 0 VCC 0 6.5 2 15 2 15 1 4 100 500 1000 47 100 560 8.2 18 100 0.02 1.0 7 0.47 1.0 0.1 1.0 0.08 0.1 2 -30 25 85 Unit V V mA mA V V mA kHz pF kΩ µF µF µF o C www.anpec.com.tw APW7095/A Electrical Characteristics Refer to the typical application circuit. These specifications apply over, VCC = 5V and T A = -30 to 85°C, unless otherwise specified. Typical values refer to TA = 25°C. Symbol Parameter ICCS VCC Standby Current IPVCC PVCC Standby Current ICC VCC Nominal Supply Current Under Voltage Lockout VTH Threshold Voltage CH1 to VH Hysteresis Width CH5 VRST Reset Voltage CH6 Threshold Voltage VTH Reference Voltage VREF Reference Voltage Output Voltage Temperature ∆VREF/ Stability VREF Line Input Stability Load Load Stability IOS Short-Circuit Output Current Soft-Start Input Standby Voltage VSTB Soft-Start Charge Current ICS Short-Circuit Detection VTH Threshold Voltage VSTB Input Standby Voltage Input Latch Voltage VI ICSCP Input Source Current Triangular Wave Oscillator Oscillator Frequency fOSC ∆f/fdv Frequency Stability for Voltage Frequency Stability for ∆f/fdt Temperature Error Amplifier (CH1 to CH5) VTH Threshold Voltage ∆VT/ VT Temperature Stability VT IB Input Bias Current AV Voltage Gain Frequency Bandwidth BW Maximum Output Voltage VOH Minimum Output Voltage VOL ISOURCE Output Source Current ISINK Output Sink Current Copyright ANPEC Electronics Corp. Rev. A.3 - Jul., 2005 Test Condition CTL = 0V CTL = 0V CTL, CTL1 to CTL5 = 5V Rising VCC Min. - APW7095/A Typ. Max. 10 10 1.8 5 Unit µA mA Falling VCC Rising VCC 2.5 1.2 1.25 2.7 0.2 1.3 1.4 2.9 1.4 1.55 V IREF = 0mA 2.46 2.49 2.51 V TA = -30°C to 85°C - 0.5 - % VCC = 3.0V to 6.5V IREF = 0mA to –1mA VREF = 2V -10 -10 -25 -18 10 10 -1 mV mV mA -1.4 50 -1.0 100 -0.6 mV µA 0.65 -1.4 0.70 50 50 -1.0 0.75 100 100 -0.6 V mV mV µA 450 - 500 1 550 10 kHz % - 1 - % 1.23 1.25 1.27 V - 0.5 - % -50 60 4.9 5 100 1.0 4.99 3 -25 16 50 -10 - nA dB MHz V mV mA mA CT=100pF, RT=18kΩ,VB=2V VCC = 3V to 6.5V TA = -30°C to 85°C FB = 1.45V TA = -30°C to 85°C IN = 0V (CH1 to CH5) DC AV = 0dB FB = 1.45V FB = 1.45V 7 www.anpec.com.tw APW7095/A Electrical Characteristics (Cont.) Refer to the typical application circuit. These specifications apply over, V CC=5V and T A= -30 to 85°C, unless otherwise specified. Typical values refer to T A =25°C. Symbol Parameter Error Amplifier (CH6) VTH Threshold Voltage ∆VTH/ VTH Temperature Stability VTH IB Input Bias Current AV Voltage Gain Frequency Bandwidth BW VOH Maximum Output Voltage Minimum Output Voltage VOL ISOURCE Output Source Current Output Sink Current ISINK Inverted Amplifier (CH4) VIO Input Offset Voltage Input Bias Current IB Voltage Gain AV BW Frequency Bandwidth Maximum Output Voltage VOH Minimum Output Voltage VOL ISOURCE Output Source Current ISINK Output Sink Current Short Detect Comparator (CH1 to CH5) Threshold Voltage VTH IB Input Bias Current Test Condition FB = 0.55V TA = -30°C to 85°C IN6 = 0V DC AV = 0dB FB = 0.55V FB = 0.55V OUT = 1.25V IN = 0V DC AV = 0dB OUT = 1.25V OUT = 1.25V CH1 to CH5 IN = 0V (CH1 to CH3, CH5) INS4 = 0V (CH4) Short Detect Comparator (CH6) VTH Threshold Voltage PWM Comparator (CH1 to CH5) Duty = 0% VT0 Threshold Voltage VT100 Duty = 100% IDTC Input Current DTC = 0.4V (CH1 to CH5) PWM Comparator (CH6) Duty = 0% VT0 Threshold Voltage Duty = Max. VTmax Dtr Maximum Duty Cycle CT = 100pF, RT = 18kΩ PWM Controller Driver for P-MOS (CH1, CH2, CH5) ISOURCE Output Source Current Duty ≤ 5%, OUT = 0V ISINK Output Sink Current Duty ≤ 5%, OUT = 5V OUT = -15mA ROH Output ON Resistance OUT = 15mA ROL Copyright ANPEC Electronics Corp. Rev. A.3 - Jul., 2005 8 APW7095/A Min. Typ. Max. Unit 1.24 1.26 1.28 V - 0.5 - % -50 60 4.9 60 75 1.0 4.99 3 -50 120 50 -10 - nA dB MHz V mV mA µA -10 -50 60 4.9 5 0 100 1.0 4.99 3 -26 16 10 50 -1.0 - mV nA dB MHz V mV mA mA 0.97 -50 -50 1.00 - 1.03 - V 0.8 0.9 1.0 1.0 -50 1.1 1.8 - 1.9 - 0.2 70 0.3 0.74 80 0.84 90 100 - -130 160 18 10 -80 30 20 nA V V nA V % mA Ω www.anpec.com.tw APW7095/A Electrical Characteristics (Cont.) Refer to the typical application circuit. These specifications apply over, V CC=5V and T A= -30 to 85°C, unless otherwise specified. Typical values refer to T A =25°C. Symbol Parameter Test Condition PWM Controller Driver for N-MOS (CH1, CH2, CH5, CH6) ISOURCE Output Source Current Duty ≤ 5%, OUT = 0V ISINK Output Sink Current Duty ≤ 5%, OUT = 5V ROH OUT = -15mA Output ON Resistance ROL OUT = 15mA PWM Controller Driver for P-MOS (CH3, CH4) ISOURCE Output Source Current Duty ≤ 5%, OUT = 0V ISINK Output Sink Current Duty ≤ 5%, OUT = 5V ROH OUT = -15mA Output ON Resistance ROL OUT = 15mA Output Switch Control (SW) VIH SWOUT = ”L” level SW Input Voltage VIL SWOUT = ”H” level SWIN = 5V ISWIN Input Current ISOURCE Output Source Current SWOUT = 0V Output Sink Current ISINK SWOUT = 5V ROH OUT = -4mA Output ON Resistance ROL OUT = 4mA Power Good Rising IN1 VTH IN1 Upper Threshold Voltage VTH Rising IN1 IN1 Lower Threshold Voltage Upper/Lower Hysteresis VPGOOD PGOOD Output Voltage Control Block (CTL, CT1 to CT5) VIH CTL Input Voltage VIL Input Current ICTL Copyright ANPEC Electronics Corp. Rev. A.3 - Jul., 2005 APW7095/A Typ. Max. Min. Unit 100 - -130 160 18 10 -80 30 20 300 - -290 470 7 4 -180 15 10 1.2 0 - 2.5 -7 19 325 85 6.5 0.5 20 400 150 µA mA mA IPGOOD = 4mA - 110 94 2 0.17 0.8 % % % V Active Mode Standby Mode CTL = 5V 1.5 0 - 2.6 6.5 0.5 20 9 mA Ω mA Ω V Ω V µA www.anpec.com.tw APW7095/A Typical Characteristics Power Supply Current vs. Power Supply Voltage Reference Voltage Current vs. Power Supply Voltage 5 5 IREF=0mA Reference Voltage, V REF(V) Power Supply Current, I CC(mA) VCC =5V TA=25°C 4 CTL=CTL1,2=CTL3=CTL4=CTL5=5V 3 2 1 TA=25°C 4 CTL=CTL1,2=CTL3=CTL4=CTL5=5V 3 2 1 0 0 0 1 2 3 4 5 6 7 0 8 Power Supply Voltage, VCC(V) 2.52 3 4 5 6 7 8 Reference Voltage vs. Control Voltage 5 VCC =5V Reference Voltage, V REF(V) Reference Voltage, V REF(V) 2.54 2 Power Supply Voltage, VCC(V) Reference Voltage vs. Ambient Temperature 2.56 1 TA=25°C CTL=CTL1,2=CTL3=CTL4=CTL5=5V IREF=0mA 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.3 - Jul., 2005 10 1 2 3 4 Control Voltage, VCTL(V) 5 www.anpec.com.tw APW7095/A Typical Characteristics (Cont.) Control Current vs. Control Voltage Upper & Lower Threshold Voltage, V CT(V) 5 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 Control Voltage, VCTL(V) Triangular Wave Upper & Lower Threshold Voltages vs. Oscillator Frequency 1.0 0.9 0.8 VCC =5V 0.6 TA=25°C RT=18kΩ 0.5 0.4 0.3 Lower 0.2 0.1 0.0 0 200 400 600 800 1000 1200 Oscillator Frequency, fosc(kHz) Oscillator Frequency vs. Timing Capacitor Oscillator Frequency vs. Timing Resistor 10000 Oscillator Frequency, fosc(kHz) 10000 Oscillator Frequency, fosc(kHz) Upper 0.7 VCC =5V TA=25°C 1000 RT=4.3kΩ 100 RT=18kΩ RT=100kΩ 10 10 100 1000 10000 Rev. A.3 - Jul., 2005 TA=25°C 1000 CT=47pF 100 CT=100pF CT=1000pF CT=470pF CT=220pF 10 1 10 100 1000 Timing Resistor, RT(kΩ) Timing Capacitor, CT(pF) Copyright ANPEC Electronics Corp. VCC =5V 11 www.anpec.com.tw APW7095/A Typical Characteristics (Cont.) Triangular Wave Upper & Lower Threshold Voltages vs. Ambient Temperature 560 540 Upper & Lower Threshold Voltage, V CT(V) Oscillator Frequency, fosc(kHz) Oscillator Frequency vs. Ambient Temperature VCC =5V CTL=CTL1,2=CTL3=CTL4=CTL5=5V RT=18kΩ CT=100pF 520 500 480 460 440 -40 -20 0 20 40 60 80 100 Rev. A.3 - Jul., 2005 0.9 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. 1.0 12 www.anpec.com.tw APW7095/A Typical Applications 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 22uF L6 22uH VBAT APM2301A OUT1-1 SS12 C27 22uF Q11 OUT4 CH4 Boost Controller Driver APM2300A R28 15k CH1 Buck Controller Driver OUT1-2 1.25V Vref FB4 IN4 R4 VREF L5 22uH 1.25V Vref C4 22uF Q3 L2 22uH 10uF C5 APM2300A C23 22uF R24 300K OUT5-2 Q9 APM2301A R22 C22 1K VREF CH5 Boost Controller Driver CH2 Buck Controller Driver 22uH C7 FB2 IN5 18K R21 24K 5V R20 47K C21 22uF 22uH R7 R10 47K T1 C8 22uF SS12 D3 D5 APM2301A C19 22uF Q7 R18 309K C20 22uF D4 APM2312 C18 R17 R19 100K APM2300A Q6 SS12 1K 0.1uF C17 OUT6 CH3 Boost Controller CH6 Boost Controller Driver FB3 IN3 IN6 CIN6 Q5 C12 1.25V Vref SWOUT VCC CTL3 PVCC C10 22uF R11 165K R12 1K VREF 15K 18K R15 47K CTL4 SWIN 13 C14 100PF C13 0.22uF GND CT R16 30K VREF C15 CSCP C16 0.1uF RT VB CS PGND CTL5 0.1uF Rev. A.3 - Jul., 2005 4700PF R14 CTL CTL1,2 Copyright ANPEC Electronics Corp. C9 22uF 15V/20mA SS12 R13 0.1uF DTC3 1.26V Vref -10V/20mA C11 OUT3 Driver FB6 0.33uF 15K R9 VREF VBAT L4 24K 1K DTC2 1.25V Vref 1.25V Vref C6 100uF R6 R8 0.1uF IN2 DTC5 D2 SS12 Q4 OUT2-2 FB5 0.1uF 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 22uF R2 1K DTC1 INS4 R27 0 C24 22uF OUTA4 R1 6.8K R3 0.1uF IN1 C26 0.1uF R29 1K C2 100uF D1 SS0520 Q2 C3 FB1 INA4 1.8V/300mA 22uH APM2300A R31 75k 5V/300mA APM2301A C1 22uF L1 Q1 VREF www.anpec.com.tw APW7095/A Typical Applications (Cont.) 2.VBAT=1.4V~3V (2-Cell Battery) for 1 Buck , 1 Inverting and 4 Boost Converter s (Using APW7095A) VBAT 3.3V ( from CH5 ) C28 Q11 APW7095A 22uF APM2301A -7.5V/20mA APM2301A C1 22uF L1 D7 Q1 OUT1-1 SS12 C27 22uF L5 22uH R31 60k OUT4 CH4 Inverting Controller Driver CH1 Buck Controller Driver OUT1-2 R30 C3 C26 0.1uF R29 1K R28 OUTA4 FB4 IN4 10k R4 VREF 0 L4 22uH 3.3V/300mA APM2301A 47K VBAT 1.25V Vref V R E F DTC4 VBAT R26 24K R25 47K C25 22uF C4 22uF L2 22uH D6 SS12 D2 SS12 4V/300mA Q4 OUT2-1 Q8 15K 24K R5 PGOOD INS4 R27 R2 1K DTC1 1.25V Vref R1 6.8K R3 0.1uF IN1 C2 100uF D1 SS0520 Q2 FB1 INA4 10k 1.8V/300mA 22uH APM2300A C5 OUT5-1 1uF APM2300A Q10 C24 22uF C23 22uF R24 24K Q9 APM2300A OUT5-2 CH5 Boost Controller Driver APM2301A C22 R22 1K 0.1uF Q3 CH2 Boost Controller OUT2-2 Driver VREF C7 FB5 FB2 IN5 IN2 1.25V Vref DTC5 R9 V R E F 18K R10 47K R21 24K R20 47K C19 22uF Q7 L6 22uH C20 22uF APM2300A Q6 SS12 R18 OUT6 APM2312 CH6 Boost Controller Driver 309K 100K CH3 Boost Controller Driver OUT3 C18 R17 R19 FB3 FB6 1K 0.1uF IN6 IN3 C12 1.26V Vref 0.33uF CTL SWOUT CTL1,2 VCC CTL3 PVCC SS12 C10 22uF R11 165K R12 1K VREF 15K 18K R15 47K 14 C14 100PF C13 0.22uF GND CT R16 30K VREF C15 0.1uF CSCP C16 0.1uF RT VB CS CTL5 PGND Rev. A.3 - Jul., 2005 15V/20mA CTL4 SWIN Copyright ANPEC Electronics Corp. C11 1uF R14 DTC3 1.25V Vref D4 R13 0.1uF 18V/3mA C9 22uF SS0520 Q5 CIN6 C17 3.3V D8 SS0520 D3 C8 22uF D5 APM2301A 15K 5V C21 22uF 22uH 5V R7 1K 0.1uF DTC2 1.25V Vref 33K R8 VBAT L3 R6 APM2301A R23 15K C6 100uF VREF www.anpec.com.tw APW7095/A Function Descriptions General The APW7095/A provides voltage-mode feedback controls for six DC/DC PWM converters(CH1 to CH6). Each channel operates with an error amplifier, PWM comparator, short-circuit comparator, ON/OFF control and output driver. An internal temperature-compensated voltage provides reference voltages for each channel. An triangular-wave oscillator(CT) with a timing resistor and capacitor generates triangular waves to each channel. A inverting amplifier(CH4) cooperates with the error amplifier for an inverting converter (with negative output voltage) . capacitor from the output pin(FB) to inverted input pin of the error amplifier for stable operations. Inverting Amplifier (Inv Amp) The inverting amplifier detects the inverting DC/DC converter output voltage (as a negative voltage) and outputs a control signal to the error amp. Channel Control Function 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 shown as the following table: Reference Voltage The APW7095 outputs a temperature- compensated reference voltage(2.49V) at VREF pin. It is regulated from the voltage at VCC pin and can source current of max. 1mA to external loads. It also supplies bias for the IC’s internal circuitry. Channel on/off Setting Tabl e Vol tage Level at CTL Pin CTL CTL1,2 CTL3 CTL4 CTL5 L x x x L L H L L H Triangular-wave Oscillator The triangular-wave oscillator is designed to generates a triangular oscillation signal (CT) with amplitude of 0.3V~0.8V at CT pin, providing signal to CH6. The oscillator frequency is settable from 100kHz to 1MHz and set by a timing resistor and a timing capacitor connected respectively from RT and CT pins to ground. Additional two triangular oscillation signals (CT1 and CT2) are also internally generated with amplitude of 1. 1V~1.8V. The CT1 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 comparators of CH1, CH3 and CH5. H H L L H H L H H MOSFET Drive Circuits APW7095/A uses push-pull configuration at output of each MOSFET driver for providing large drive current to MOSFET gate. The following table shows the MOSFETs connected to the drivers: IC CH1 Error Amplifier The error amplifier is designed with unit-gain-bandwidth of 1MHz and to satisfy wide application requirements. It works with enternal resistor-capacitor network for each converter’s feedback compensation. The loop gain can be set by connecting a feedback resistor and Copyright ANPEC Electronics Corp. Rev. A.3 - Jul., 2005 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 CH2 CH3 CH4 CH5 CH6 15 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 www.anpec.com.tw APW7095/A Function Descriptions (Cont.) Timer-latch short-circuit protection circuit rising voltage at CIN6 reaches 0.9V, the reference voltage starts to regulate 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 any control pins (CH1, 2 to CH5) go “H” from “L” during the soft-start interval (CH1 to CH5), the output rises rapidly to follow the rising voltage at CS pin. The short-circuit protection comparator in each channel (CH1 to CH5) monitors converter’s output voltage via input pin of error amplifier. In CH6, the short-circuit comparator detects the voltage at output of error amplifier. As any detected voltages of CH1 to CH5 falls below 1.0V or the detected voltage of CH6 is larger than 0.9V, the timer circuits is actuated to start charging the external capacitor CSCP connected from CSCP pin to ground. When the rising voltage of CSCP reaches 0.7V, the IC turns off all external MOSFETs and pulls up the voltage at SWOUT pin. Then the IC is latched. Applying a signal from “L” to “H” to CTL pin enables operation again. The short-circuit detection function remains working during soft start operation on CH1 to CH5. Input CTL CTL1,2 CTL3 CTL4 CTL5 Output 2V VB 0.9V CIN6 CH6 Output Voltage (Vo6) 2.49V VREF 1.25V CS Under-Voltage Lockout (UVLO) Circuit The under-voltage lockout circuit monitors the supply voltage at VCC pin to prevent wrong logic control. The IC starts operation after the supply voltage rises above it’s rising threshold. As the supply voltage falls below it’s falling threshold, the IC turns off the external MOSFETs and pulls up the voltage at SWOUT pin. CH1 to CH5 Output Voltages (Vo1 to Vo5) t (1) (3) (2) (4) (1) to (2) : CH6 Soft-Start Interval (3) : VREF Output start (3) to (4) : CH1 to CH5 Soft-Start Interval Figure 1 Soft-start waveforms Input CTL CTL1,2 CTL3 CTL4 CTL5 Soft-Start Operation The soft-start function controls the output voltage rate of rise to limit the current surge at start-up. For CH1 to CH5, the soft-start interval is programmed by the soft-start capacitor, CS connected from CS pin to Output 2V VB 0.9V CIN6 CH6 Output Voltage (Vo6) 2.49V VREF ground and charged by an internal 1µA current source. For CH6, a soucing current from the internal resistordivider charges the capacitor, CCIN6 connected from CIN6 pin to ground, 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 high (“H” level) at the same time, the voltage at CIN6 pin starts to rise up by charging the capacitor CCIN6 , starting a soft-start operation on CH6. After the Copyright ANPEC Electronics Corp. Rev. A.3 - Jul., 2005 1.25V CS 1.25V CH1 to CH3 Output Voltages (Vo1 to Vo3) CH4 to CH5 Output Voltages (Vo4 to Vo5) (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 Figure 2 Soft-start waveforms 16 www.anpec.com.tw APW7095/A Function Descriptions (Cont.) f OSC (kHz) ≈ Output Switch Control Circuit The output switch control circuit outputs a signal to control external p-channel MOSFETs for preventing reactive 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. 900000 RT (k Ω ) ⋅ CT (pF) Output Voltage Settings The output voltage is set by the external resistor-divider connected with converter output, error amplifier input, and ground. (1) CH1 to CH3, CH5 R1 Vo (V) = 1.25V ⋅ 1 + R2 VO R1 Application Information Error Amp. 1 IN1 R2 1.25V Soft-Start Interval Settings The CH6 soft-start time depends on the capacitor CCIN6 and is determined as the following equation: (2) CH4 Vo (V) = - 1.25V ⋅ R1 R2 VO CCIN6 (F) ⋅ 37.5 (kΩ ) ⋅ 62.5 (kΩ ) VCIN6 (V) ts (S) = ⋅ ln1 − 100 (k Ω ) 1.26 (V) VB(2V) V CIN6 CIN6 R1 R2 OUTA4 Error Amp. 6 R3 Error Amp. 4 IN4 37.5k 1.25V 62.5k CC I N 6 INV Amp. 4 INA4 (3) CH6 R1 Vo (V) = 1.26V ⋅ 1 + R2 The soft-start time until CH6 output voltage reaches 95% of the set voltage is determined as the following equation: ts (S) ≈ 0.07 ⋅ C CIN6 ( µ F) VO VB(2V) R1 IN6 Error Amp. 6 37.5k R2 CIN6 On CH1 to CH5, the soft-start time depending on the capacitor CS determined as the following equation : 62.5k ts (S) ≈ 1.25 ⋅ C S ( µ F) Time Constant Setting for Timer-Latch Short-Circuit Protection Circuit Triangular Oscillator Frequency Setting The triangular oscillator frequency set by the timing The time constant for timer-latch short-circuit protection is set by the capacitor CSCP and determined as capacitor (CT) connected to the CT pin and the timing resistor (RT) connected to the RT pin determined as the following equation : tPE (S) = 0.70 ⋅ C SCP ( µ F) the following equation: Copyright ANPEC Electronics Corp. Rev. A.3 - Jul., 2005 17 www.anpec.com.tw APW7095/A Application Information (Cont.) Dead-Time Setting 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 step-up or step-up/down Zeta method or flyback method, the FB pin voltage may reach and exceed the triangular wave voltage due to load fluctuation. If this is the case, the output MOSFET is fixed to a ON duty of 100 %. To prevent 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 voltage (CT1/ 2), the output transistor is turned on. The maximum duty is calculated as the following equation: 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.3 - Jul., 2005 18 www.anpec.com.tw APW7095/A Package Information LQFP-48 A A2 A1 C b θ L L1 e E DETAIL "E" 48 37 1 D 36 Hd 25 "E" 12 13 24 He Dim A A1 A2 b c D E e Millimeters Min. 0.050 Inches Max. 1.600 0.150 Min. 0.0020 Max. 0.0630 0.0059 1.400±0.05 0.200TYP 0.127TYP 7.000±0.100 7.000±0.100 0.500TYP 0.0551±0.0020 0.0078TYP 0.0050TYP 0.2756±0.0039 0.2756±0.0039 0.0196TYP Hd 9.000±0.250 0.3543±0.0098 He L L1 y θ 9.000±0.250 0.600±0.150 1.000REF 0.3543±0.0098 0° Copyright ANPEC Electronics Corp. Rev. A.3 - Jul., 2005 0.0236 0.006 0.0393REF 0.100 7° 19 0° 0.0039 7° www.anpec.com.tw APW7095/A Package Information TQFN-48 D 48 47 46 45 44 43 42 41 40 39 38 D2 37 1 36 2 35 3 34 4 33 5 32 E 6 31 7 30 8 29 9 28 10 27 11 26 47 L 48 1 2 E2 25 12 13 14 15 16 17 18 19 20 21 22 23 24 e b A2 A A3 A1 Dim A A1 A2 A3 b D D2 E E2 e L Millimeters Min. 0.80 0 0 Max. 1.00 0.05 1.00 Min. 0.03 0 0 0.30 0.007 0.20REF 0.18 4.15 5.25 0.09 0.21 0.28BSC 5.25 0.09 0.50BSC 0.30 0.01 0.28BSC 7BSC 4.15 Max. 0.04 0.002 0.04 0.008REF 7BSC Copyright ANPEC Electronics Corp. Rev. A.3 - Jul., 2005 Inches 0.21 0.02BSC 0.50 20 0.01 0.01 www.anpec.com.tw APW7095/A Physical Specifications Terminal Material Lead Solderability Solder-Plated Copper (Solder Material : 90/10 or 63/37 SnPb), 100%Sn Meets EIA Specification RSI86-91, ANSI/J-STD-002 Category 3. Reflow Condition (IR/Convection or VPR Reflow) tp TP Critical Zone T L to T P Temperature Ramp-up TL tL Tsmax Tsmin Ramp-down ts Preheat 25 t 25 °C to Peak Time 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/Classificatioon 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 Notes: All temperatures refer to topside of the package .Measured on the body surface. (mm) Copyright ANPEC Electronics Corp. Rev. A.3 - Jul., 2005 21 www.anpec.com.tw APW7095/A Classification Reflow Profiles(Cont.) Table 1. SnPb Entectic Process – Package Peak Reflow Temperature s 3 3 Package Thickness Volume mm Volume mm <350 ≥350 <2.5 mm 240 +0/-5°C 225 +0/-5°C ≥2.5 mm 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. 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 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 7X7mm Shipping Tray Copyright ANPEC Electronics Corp. Rev. A.3 - Jul., 2005 22 www.anpec.com.tw APW7095/A 7X7mm Shipping Tray (Cont.) Customer Service Anpec Electronics Corp. Head Office : 5F, No. 2 Li-Hsin Road, SBIP, Hsin-Chu, Taiwan, R.O.C. Tel : 886-3-5642000 Fax : 886-3-5642050 Taipei Branch : 7F, No. 137, Lane 235, Pac Chiao Rd., Hsin Tien City, Taipei Hsien, Taiwan, R. O. C. Tel : 886-2-89191368 Fax : 886-2-89191369 Copyright ANPEC Electronics Corp. Rev. A.3 - Jul., 2005 23 www.anpec.com.tw