AAT1351-S6-T

Advanced Analog Technology, Inc. AAT1351 Details are subject to change without notice 2-CHANNEL SWITCHING REGULATOR FEATURES Complete PWM Power Control Circuitry Under-Voltage Lockout (UVLO) Protection Open Drain Output Output Short Circuit Protection Low Dissipation Current：1.6mA Dead-Time Control：0% to 100% Wide Operating Frequency： 10 kHz to 800 kHz GENERAL DESCRIPTION The AAT1351 provides an integrated two-channel pulse-width-modulation (PWM) solution for the power supply of DC-DC system; this device offers the systems engineer flexibility to tailor-make the power supply circuitry for specific applications. Each channel contains its own error amplifier, PWM comparator, dead–time control (DTC) and output driver. The under-voltage protection, oscillator, short circuit protection and voltage reference circuit are the common features for the two channels. Both channels of AAT1351 can be used for DC-DC converter operations including step-up, step-down, and inverting. Dead-time control can be set to provide 0% to 100% dead-time through a resistive divider network. Soft-start can be implemented by paralleling the DTC resistor with a capacitor. Two dead-time control inputs are assigned for channel 1 (CH1) and channel 2 (CH2) individually, and deadtime control inputs can be used to control on / off operation. With a minimum number of external components, the AAT1351 offers a simple and cost effective solution. VDD Range：4.0V to 14.0V PIN CONFIGURATION TOP VIEW Ct Rt NE1 IE1 OE1 DTC1 OUT1 GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VREF SCP NE2 IE2 OE2 DTC2 OUT2 VDD SOP-16 PACKAGE – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 1 of 16 V1.0 Advanced Analog Technology, Inc. AAT1351 PIN DESCRIPTION PIN NO NAME 1 Ct I/O DESCRIPTION I External Timing Capacitance I External Timing Resistance 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Rt NE1 IE1 OE1 DTC1 OUT1 GND VDD OUT2 DTC2 OE2 IE2 NE2 SCP VREF Noninverting Input of Error Amplifier 1 Inverting Input of Error Amplifier 1 Output of Error Amplifier 1 Output 1 Dead-Time / Soft-Start Setting Output 1 Ground I Power Supply O Output 2 I Output 2 Dead-Time / Soft-Start Setting I Output of Error Amplifier 2 I Inverting Input of Error Amplifier 2 I Noninverting Input of Error Amplifier 2 I Timer Latch Setting O Reference Voltage (2.5V) Output I I I I O – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 2 of 16 V1.0 Advanced Analog Technology, Inc. AAT1351 ABSOLUTE MAXIMUM RATINGS CHARACTERISTICS SYMBOL VDD VI VO VALUE 14.0 VDD UNIT V V Supply Voltage Input Voltage ( IE − , DTC) Output Voltage Output Current Operating Free-Air Temperature Range Storage Temperature Range Power Dissipation VDD +0.3 120 − 20 to +85 − 45 to +125 V mA o o IO TC Tstorage C C Pd 500 mW RECOMMENDED OPERATING CONDITIONS Supply Voltage, VDD Input Voltage, IE1, IE2 Output Voltage Oscillator (OSC) Capacitance Oscillator (OSC) Resistance Oscillator (OSC) Frequency Output Current, I OUT1 , I OUT 2 Operating Free-Air Temperature SYMBOL VDD Vcm MIN 4.0 MAX 14.0 UNIT V 0.5 0 100 5.1 10 − 20 1.6 VDD 15,000 50.0 800 100 85 V V pF kΩ VO C OSC R OSC f OSC IO TC kHz mA o C – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 3 of 16 V1.0 Advanced Analog Technology, Inc. AAT1351 ELECTRICAL CHARACTERISTICS, VDD = 6.0V (UNLESS OTHERWISE SPECIFIED) (SEE NOTE 1) OSCILLATOR PARAMETER TEST CONDITION MIN TYP MAX UNIT Frequency f OSC C OSC = 330pF, R OSC = 10 kΩ VDD = 4.0V to 14.0V, TC = 25 oC C OSC = 330pF, R OSC = 10 kΩ 160 200 240 kHz Frequency Changes with VDD f ∆V - 1 - % UNDER VOLTAGE PROTECTION PARAMETER Upper Threshold Voltage VUPH TEST CONDITION TC = 25 oC Lower Threshold Voltage Hysteresis ( VUPH – VUPL ) VUPL VHYS TC = 25 oC TC = 25 oC MIN TYP MAX UNIT 2.9 V 2.53 V 0.37 V SHORT CIRCUIT PROTECTION CONTROL PARAMETER TEST CONDITION MIN TYP MAX UNIT Input Threshold Voltage Short Circuit Detect Threshold Voltage SCP Terminal Source Current Stand-by Voltage Latch Voltage Vr1 Vr 2 I SCP VSTB VLT CH1, CH2 0.65 − 20 1.18 0.70 − 15 0.75 − 10 V V µA TC =25 oC. 50 30 100 100 mV mV Note 1: Typical values of all parameters are specified at – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 4 of 16 V1.0 Advanced Analog Technology, Inc. AAT1351 ELECTRICAL CHARACTERISTICS, VDD = 6.0V (UNLESS OTHERWISE SPECIFIED) (SEE NOTE 1) (CONT.) REFERENCE VOLTAGE PARAMETER Reference Voltage Input Voltage Regulation Output Regulation EA (ERROR AMPLIFIER) PARAMETER VREF VRI VRO TEST CONDITION I REF = −1mA , TC = 25 oC MIN TYP MAX UNIT 2.4 - 2.5 1 1 2.6 5 10 V mV mV I REF = −1mA , VDD = 4.0V to 14.0V I REF = −0.1mA to − 3.0 mA Input Offset Voltage Input Bias Current Input Voltage Range Open-Loop Voltage Gain Output Voltage Swing Output Sink Current Output Source Current Common-Mode Rejection Ratio VIO I IB VIR A VO VOS+ VOS− I OS+ I OS− CMRR TEST CONDITION CH1, CH2, Unity Gain MIN TYP MAX UNIT 0.5 70 2.3 - ±15 85 2.5 0.7 20 − 45 6 ±100 1.6 0.9 - mV nA V dB V mA µA CH1, CH2 CH1, CH2 OE=1.25V OE=1.25V 3 − 75 60 80 dB – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 5 of 16 V1.0 Advanced Analog Technology, Inc. AAT1351 ELETRICAL CHARACTERISTICS, VDD = 6.0V (UNLESS OTHERWISE SPECIFIED) (SEE NOTE 1) (CONT.) DEAD-TIME CONTROL & PWM PARAMETER I IB Input Bias Current TEST CONDITION VDTC = 2V MIN TYP MAX UNIT 1.79 1.32 2.28 0.1 1.97 1.48 2.48 1.0 2.15 µA Vd 0 Input Threshold Voltage (DTC) Duty = 0%, f OSC = 10kHz V Vd100 Duty = 100%, f OSC = 10kHz 1.64 V µA Latch Input Voltage Latch Mode Source Current OUTPUT STAGE PARAMETER VDTC IDT = 40µA I DTC DTC1, DTC2=0V − 560 − 200 Saturation Voltage Leakage Current OPERATING CURRENT PARAMETER VSAT I LEAK TEST CONDITION MIN IO = 75mA（CH1, CH2） VO =14.0V - TYP MAX UNIT 0.8 - 1.2 5 V µA TEST CONDITION MIN TYP MAX UNIT I DD−OFF Supply Current I DD−ON Output “OFF” State R OSC = 10kΩ - 1.3 1.6 1.8 2.4 mA mA – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 6 of 16 V1.0 Advanced Analog Technology, Inc. AAT1351 BLOCK DIAGRAM OE1 NE1 IE1 Err-Amp SCP Comp PWM OUT1 GND UVC NE2 IE2 OE2 Err-Amp PWM V REF UVC OUT2 Ct DTC1 OSC V REF UVC Rt DTC2 UVC LATCH UVLO V DD V DD LATCH SCP S CP UVC V REF V REF V REF – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 7 of 16 V1.0 Advanced Analog Technology, Inc. AAT1351 APPLICATION CIRCUIT VREF – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 8 of 16 V1.0 Advanced Analog Technology, Inc. AAT1351 TIMGING CHART 2.05V OE DTC 1.18V 1.45V PWM OUTPUT OUTPUT 0.7V 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 9 of 16 V1.0 Advanced Analog Technology, Inc. AAT1351 PACKAGE DIMENSION 16-PIN SOP – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 10 of 16 V1.0 Advanced Analog Technology, Inc. AAT1351 PACKAGE DIMENSION (CONT.) – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 11 of 16 V1.0 Advanced Analog Technology, Inc. AAT1351 PACKAGE DIMENSION (CONT.) SYMBOLS A A1 A2 b C D E E1 e L y θ NOTE: 1. 2. 3. DIMENSIONS IN MILLIMETERS MIN TYP MAX 1.47 1.60 1.73 0.10 -----0.25 -----1.45 -----0.33 0.41 0.51 0.19 0.20 0.25 9.80 9.91 10.01 5.79 5.99 6.20 3.81 3.91 3.99 -----1.27 -----0.38 0.71 1.27 ----------0.076 o -----0 8o DEMINSIONS IN INCHES MIN TYP MAX 0.058 0.063 0.068 0.004 -----0.010 -----0.057 -----0.013 0.016 0.020 0.0075 0.0080 0.0098 0.386 0.390 0.394 0.228 0.236 0.244 0.150 0.154 0.157 -----0.050 -----0.015 0.028 0.050 ---------0.003 o -----0 8o 4. 5. 6. 7. CONTROLLING DIMENSION: INCH LEAD FRAME MATERIAL: COPPER 194 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 SAHLL NOT EXCEED 0.010” [0.25 MILLIMETERS] PER SIDE. 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]. TOLERANCE: ± 0.010” [0.25 MILLIMETERS] UNLESS OTHERWISE SPECIFIED. OTHERWISE DIMENSION FOLLOW ACCEPTABLE SPEC. REFERENCE DOCUMENT: JEDEC SPEC MS-012 – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 12 of 16 V1.0 Advanced Analog Technology, Inc. AAT1351 TAPE AND REEL – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 13 of 16 V1.0 Advanced Analog Technology, Inc. AAT1351 TAPE AND REEL (CONT.) X.XXX X X.XXX X.XX X.X X ± 0.0025 ± 0.006 ± 0.025 ± 0.10 ± 0.25 UNIT: MILLIMETERS NOTE: 1. 2. 3. 4. 10 SPROCKET HOLE PITCH CUMULATIVE TOLERANCE ± 0.2. CHAMBER NOT TO EXCEED 1 MILLIMETER IN 100 MILLIMETERS. MATERIAL: BLACK ADVANTEK POLYSTYRENE. A 0 AND B 0 MEASURED ON A PLANE 0.3 MILLIMETERS ABOVE THE BOTTOM OF THE POCKET. 5. 6. 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. – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 14 of 16 V1.0 Advanced Analog Technology, Inc. AAT1351 PART MARKING SOP16 TOP MARKING AAT1351 BXXXXX.X YYWW TAIWAN LOT NO. DATE CODE (0416 = 16th week of Year 2004) NOTE: SOP16 HAS NO BACK MARKING. – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 15 of 16 V1.0 Advanced Analog Technology, Inc. AAT1351 ORDERING INFORMATION – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 16 of 16 V1.0