Advanced Analog Technology, Inc. AAT1107 Details are subject to change without notice. BUCK_BOOST & BOOST PWM CONTROLLER WITH ADJUSTABLE LDO FEATURES z GENERAL DESCRIPTION Complete PWM Power Control Circuitry CH1: Buck_Boost, CH2: Boost z Adjustable Low Dropout (LDO) Regulator z Under-Voltage Lockout (UVLO) Protection z Totem Pole Output z Output Short Circuit Protection z Dead Time Control : 0% to 100% z Wide Operating Frequency: 10kHz to 800kHz PIN CONFIGURATION TOP VIEW Ct 1 16 VREF Rt 2 15 SCP IE3 3 14 OUT3 IE1 4 13 IE2 OE1 5 12 OE2 DTC1 6 11 DTC2 OUT1 7 10 OUT2 GND 8 9 VDD The AAT1107 provides an integrated two-channel pulse-width-modulation (PWM) solution for the power supply of DC-DC system. This device offers system engineers the flexibility to tailor-make the power supply circuitry for the specific applications. Each channel contains its own error amplifier, PWM comparator, dead-time control (DTC) and output driver. The two channels share common features of under-voltage protection, oscillator, short circuit protection and voltage reference circuit. Two dead-time control inputs are assigned for channel (CH1) and channel 2 (CH2) individually, and dead-time control inputs can be used to control on/off operation. The AAT1107 contains one step-up (boost) circuit at CH2 and one inverting (buck_boost) circuit at CH1. In addition, DTC can be set to provide 0% to 100% dead-time through a resistive divider network and soft-start can be implemented by paralleling the DTC resistor with a capacitor. The Maximum output current of LDO regulator can be enlarged by connecting an nMOSFET (or NPN bipolar) as a source follower stage at OUT3 pin. TSSOP-16 PACKAGE – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 1 of 16 V 1.0 Advanced Analog Technology, Inc. AAT1107 PIN DESCRIPTION Pin No 1 Name Ct 2 Rt 3 4 5 6 7 8 9 10 11 12 13 14 15 16 IE3 IE1 OE1 DTC1 OUT1 GND VDD OUT2 DTC2 OE2 IE2 NE2 SCP VREF I/O Description - External Timing Capacitance - External Timing Resistance I I O I O O I O I O O Inverting Input of LDO Regulator Inverting Input of Error Amplifier 1 Output of Error Amplifier 1 Output 1 Dead-Time / Soft-Start Setting Output 1 Ground Power Supply Output 2 Output 2 Dead-Time / Soft-Start Setting Output of Error Amplifier 2 Inverting Input of Error Amplifier 2 LDO Output Timer Latch Setting Reference Voltage (2.505V) Output – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 2 of 16 V 1.0 Advanced Analog Technology, Inc. AAT1107 ABSOLUTE MAXIMUM RATINGS Characteristics Value 7.0 VDD Unit V V Output Voltage Symbol VDD VI VO VDD +0.3 V Output Current IO − 120 / + 120 mA Operating Free-Air Temperature Range TC − 20 to + 85 o Tstorage − 45 to + 125 o Pd 500 Supply Voltage Input Voltage ( IE − , DTC) Storage Temperature Range Power Dissipation C C mW RECOMMENDED OPERATING CONDITIONS Symbol VDD Vcm Min 4.0 Max 6.5 Unit V 0.5 1.6 V VO 0 VDD Oscillator (OSC) Capacitance C OSC 100 15,000 V pF Oscillator (OSC) Resistance R OSC 5.1 50.0 kΩ Oscillation (OSC) Frequency Output Current, I OUT1 , I OUT 2 f OSC 10 800 kHz I O12 - + 50 / − 50 mA Output Current, I OUT 3 I O3 - 30 mA Operating Free-Air Temperature TC − 20 85 o Supply Voltage Input Voltage, IE1, IE2, IE3 Output Voltage C – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 3 of 16 V 1.0 Advanced Analog Technology, Inc. AAT1107 ELECTRICAL CHARACTERISTICS, VDD = 5.0V (UNLESS OTHERWISE SPECIFIED) (SEE NOTE 1) Oscillator Parameter Symbol f OSC Frequency Test Condition C OSC = 220pF , R OSC = 10kΩ Min Typ Max Unit 320 400 480 kHz - 1 - % Min Typ Max VDD = 4.0V to 6.0V Frequency Change with VDD Under-Voltage Protection Parameter f ∆V TC = 25o C C OSC = 220pF R OSC = 10kΩ Upper Threshold Voltage VUPH TC = 25 C 2.6 2.9 3.2 Unit V Lower Threshold Voltage VUPL 2.23 2.53 2.83 V Hysteresis (VUPH − VUPL ) TC = 25o C VHYS TC = 25o C - V Symbol Test Condition o Short Circuit Protection Control Parameter Symbol Test Condition - 0.37 Min Typ Max Unit V V Input Threshold Voltage Vr 2 CH2 2.10 2.40 2.65 Input Threshold Voltage Vr1 Vr 3 CH1 0.95 1.05 1.15 CH3 - 1.05 - Vtscd 1.48 1.64 1.80 V Input Threshold Voltage Short-Circuit Detect Threshold Voltage SCP Terminal Source Current Stand-by Voltage I SCP − 3 .5 − 2 .5 − 1 .5 µA VSTB - 50 100 mV Latch Voltage VLT - 30 100 mV Note 1: Typical values of all parameters are specified at TC = 25o C . – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 4 of 16 V 1.0 Advanced Analog Technology, Inc. AAT1107 ELECTRICAL CHARACTERISTICS, VDD = 5.0V (UNLESS OTHERWISE SPECIFIED) (SEE NOTE 1) (CONT.) Reference Voltage Parameter Internal Reference Voltage Reference Voltage Symbol Test Condition Min Typ Max Unit o VREFi I REF = −1mA , TC = 25 C 1.220 1.233 1.246 V VREF I REF = −1mA , TC = 25o C 2.430 2.505 2.580 Input Voltage Regulation VRI I REF = −1mA , VDD =4.0V to 6.0V - 1 5 mV Output Regulation VRO I REF = −0.1mA to − 1mA - 1 - mV Min Typ Max Unit - - 6 mV 0.5 ± 15 ± 100 - 1.6 nA V VO 70 85 - dB VOS+ 2.3 2.5 - VOS− - 0.7 0.9 EA (Error Amplifier) Parameter Input Offset Voltage VIO Test Condition CH1, CH2, Unity Gain Input Bias Current Input Voltage Range I IB VIR CH1, CH2 CH1, CH2 Open-Loop Voltage Gain Output Voltage Swing A V Output Sink Current I OS+ OE=1.25V 3 20 - Output Source Current Common-Mode Rejection Ratio I OS− OE=1.25V - − 75 − 45 mA µA 60 80 - dB Min Typ Max Unit CMRR Operating Current Parameter Supply Current Test Condition I DD−OFF Output ”OFF” State - 1.8 - mA I DD−ON R OSC = 10kΩ - 2.0 - mA – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 5 of 16 V 1.0 Advanced Analog Technology, Inc. AAT1107 ELECTRICAL CHARACTERISTICS, VDD = 5.0V (UNLESS OTHERWISE SPECIFIED) (SEE NOTE 1) (CONT.) Dead-Time Control & PWM PARAMETER Input Bias Current Input Threshold Voltage (DTC1) Symbol TEST CONDITION VDTC =2V I IB MIN TYP MAX UNIT 0.1 1.0 V 1.87 1.97 2.07 V1d 0 Duty=0%, f OSC =10kHz V1d100 Duty=100%, f OSC =10kHz 1.38 1.48 1.58 V Input Threshold Voltage (DTC2) V2d 0 Duty=0%, f OSC =10kHz 1.38 1.48 1.58 V2d100 Duty=100%, f OSC =10kHz 1.87 1.97 2.07 Latch Input Voltage (DTC1) V1DTC I DTC = 40µA 2.28 2.48 - V Latch Input Voltage (DTC2) Latch Mode Source Current (DTC1) Latch Mode Source Current (DTC2) V2 DTC I DTC = 100µA - 0.1 0.3 V I1DTC DTC1=0V - − 560 − 200 µA I 2 DTC DTC2=2.0V - − 560 − 200 µA Symbol Test Condition VOH I O = −50mA Min 3.6 Typ 4.0 Max - Unit Output Stage Parameter High-Level Output Voltage V V Low-Level Output Voltage VOL I O = +50mA - 0.8 1.2 V Rise Time t RISE C L =1,000pF - 100 - ns Fall Time t FALL C L =1,000pF - 100 - ns Leakage Current I LEAK VO =6.0V - - 5.0 µA - - - pF Min 3.17 Typ 3.30 Max 3.43 Unit Capacitance at the Output Pin CL LDO Parameter Output Voltage Symbol Test Condition Vrd VDD =5V, VOUT 3 =3.3V V Line Regulation LR I VDD =4.0V~6.5V, I OUT 3 =10mA - 0.08 0.30 % Load Regulation LR O I OUT 3 =1mA~30mA - 0.1 - % – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 6 of 16 V 1.0 Advanced Analog Technology, Inc. AAT1107 BLOCK DIAGRAM OE1 VDD IE1 Vr1 VERFi 1.233V SCP Comp Err-Amp OUT1 PWM GND Vr2 IE3 UVC Vr3 VREFi 1.233V VDD OUT2 IE2 OE2 Err-Amp PWM VREF Ct UVC DTC1 OSC Rt DTC2 UVC UVC LATCH VDD LATCH UVLO VDD SCP SCP IE3 OUT3 UVC VREFi 1.233V VREF VREF VREF – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 7 of 16 V 1.0 Advanced Analog Technology, Inc. AAT1107 APPLICATION CIRCUIT 1 VDD C11 U1 VDD Q1 OUT1 VN1 R5 D1 OE1 L1 C1 R1 VN1 C9 IE1 R2 L2 VP2 AAT1107 VREF VP2 D2 R6 Q2 OE2 OUT2 C2 R3 IE2 C10 VP3 OUT3 R4 R11 IE3 C12 R12 VREF C20 C5 R9 Ct R7 DTC1 Rt DTC2 R10 R8 C4 SCP GND Rt Ct CSCP – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 8 of 16 V 1.0 Advanced Analog Technology, Inc. AAT1107 APPLICATION CIRCUIT 2 Optional Circuit: Positive charge pump circuit VDD C11 VP4 U1 VDD D4 Q1 OUT1 VN1 VN1 R5 L1 C1 R1 C7 D3 C8 D1 OE1 C9 IE1 R2 L2 AAT1107 VREF VP2 Q2 OE2 OUT2 C2 R3 VP2 D2 R6 C10 VDD IE2 R4 Q3 OUT3 VP3 C13 VN2 R11 R12 VREF C20 C5 R9 D5 C12 IE3 D6 C14 R7 Ct DTC1 Optional Circuit: enlarge output current Rt Optional Circuit : negative charge pump circuit DTC2 R10 R8 C4 SCP GND Rt Ct CSCP – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 9 of 16 V 1.0 Advanced Analog Technology, Inc. AAT1107 BUCK-BOOST（INVERTING） TIMING CHART（CH1） 1.97V OE DTC 1.05V 1.48V PWMOUTPUT OUTPUT 1.64V SCP tSCP SCPCOMP 2.53V VDD LOCKOUT FREE Note: t scp ≅ C SCP Vr 2 I SCP – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 10 of 16 V 1.0 Advanced Analog Technology, Inc. AAT1107 BOOST （STEP-UP）TIMING CHART （CH-2） 2.40V 1.97V DTC OE 1.48V PWMOUTPUT OUTPUT 1.64V SCP tSCP SCP COMP 2.53V VDD LOCKOUT FREE Note: t scp ≅ C SCP Vr 2 I SCP – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 11 of 16 V 1.0 Advanced Analog Technology, Inc. AAT1107 PACKAGE DIMENSION 16-PIN TSSOP – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 12 of 16 V 1.0 Advanced Analog Technology, Inc. AAT1107 PACKAGE DIMENSION (CONT.) SYMBOLS DIMENSIONS IN MILLIMETERS DEMINSIONS IN INCHES MIN TYP MAX MIN TYP MAX A 1.05 1.10 1.20 0.041 0.043 0.047 A1 0.05 0.10 0.15 0.002 0.004 0.006 A2 ------ 1.00 1.05 ------ 0.039 0.041 b 0.20 0.25 0.28 0.008 0.010 0.011 C ------ 0.127 ------ ------ 0.005 ------ D 4.900 5.075 5.100 0.1930 0.1998 0.2000 E 6.20 6.40 6.60 0.244 0.252 0.260 E1 4.30 4.40 4.50 0.170 0.173 0.177 e ------ 0.65 ------ ------ 0.026 ------ L 0.50 0.60 0.70 0.020 0.024 0.028 y ------ ------ 0.076 ------ ------ 0.003 θ 0 o 4 o 8 o 0 o 4 o 8o NOTE: 1. CONTROLLING DIMENSION: MILLIMETERS 2. LEAD FRAME MATERIAL: OLIN C7025/EFTEC 64T 3. DIMENSION “D” DOES NOT INCLUDE MOLD FLASH, TIE BAR BURRS AND GATE BURRS. MOLD FLASH, TIE BAR BURRS AND GATE BURRS SHALL NOT EXCEED 0.006” [0.15 MILLIMETERS] PER END. DIMENSION “E1” DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010” [0.25 MILLIMETERS] PER SIDE. 4. DIMENSION “b” DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.003” [0.08 MILLIMETERS] TOTAL IN EXCESS OF THE “b” DIMENSION AT MAXIMUM MATERIAL CONDITION. DAMBAR CANNOT BE LOCATED ON THE LOWER RADIUS OR THE FOOT. MINIMUM SPACE BETWEEN PROTRUSION AND AN ADJACENT LEAD TO BE 0.0028” [0.07 MILLIMETERS]. 5. TOLERANCE: ± 0.010 [0.25 MILLIMETERS] UNLESS OTHERWISE SPECIFIED. 6. OTHERWISE DIMENSION FOLLOW ACCEPTABLE SPEC. 7. REFERENCE DOCUMENT: JEDEC SPEC MO-153. – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 13 of 16 V 1.0 Advanced Analog Technology, Inc. AAT1107 TAPE AND REEL – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 14 of 16 V 1.0 Advanced Analog Technology, Inc. AAT1107 TAPE AND REEL (CONT.) NOTE: 1. 2. 3. 4. 5. 6. 10 SPROCKET HOLE PITCH CUMULATIVE TOLERANCE ± 0.2 MILLIMETERS. CAMBER NOT TO EXCEED 1 MILLIMETER IN 100 MILLIMETERS. MATERIAL: ANTI-STATIC BLACK ADVANTEK POLYSTYRENE. A 0 AND B 0 MEASURED ON A PLANE 0.3 MILLIMETERS ABOVE THE BOTTOM OF THE POCKET. K 0 MEASURED FROM A PLANE ON THE INSIDE BOTTOM OF THE POCKET TO THE TOP SURFACE OF THE CARRIER. POCKET POSITION RELATIVE TO SPROCKET HOLE MEASURED AS TRUE POSITION OF POCKET, NOT POCKET HOLE. PART MARKING TSSOP16 TOP MARKING AAT1107 XXXXXX TSSOP16 BACK MARKING YYWW – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 15 of 16 V 1.0 Advanced Analog Technology, Inc. AAT1107 ORDERING INFORMATION – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 16 of 16 V 1.0