Advanced Analog Technology, Inc. AAT1403A Details are subject to change without notice SIX-CHANNEL DIGITAL STILL CAMERA POWER SUPPLY GENERAL DESCRIPTION FEATURES The AAT1403A provides an integrated six-channel z Complete PWM Power Control Circuitry pulse-width-modulation (PWM) solution for the power z Input Voltage Range: 1.4V to 6.5V supply of DC-DC converter; this device offers system z Low Start-Up Voltage: 1.4V (CH6) engineer flexibility to tailor-make the power supply z Separate On/Off Control for CH1~CH6 z Supports Synchronous Boost Rectification (CH6) z Supports Synchronous Buck Rectification (CH1, 5) z Supports Boost Conversion (CH2, 4) z Supports White LED Driver (CH4) z Supports Inverting Conversion (CH3) circuitry for specific applications. Each channel contains its own error amplifier, PWM comparator, dead-time control and output driver. The under-voltage protection, oscillator, short circuit protection and voltage reference circuit are the common features for the six channels. z Totem Pole Output In addition to two boost conversions and one inverting z Short Circuit Protection z VQFN40 and LQFP48 Package z Oscillator Frequency: 500 kHz (±15%) conversion, AAT1403A also has three synchronous rectifiers. APPLICATIONS z Digital Cameras z CCD Imaging Devices z Camcorders – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 1 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A PIN CONFIGURATION (VQFN-40) (LQFP-48) FUNCTION TABLE Condition SD − Channel Status CH1 SD1= “Lo” Off SD1= “Hi” On CH2 SD2= “Lo” Off SD2= “Hi” On CH3 SD3= “Lo” Off SD3= “Hi” On CH4 SD4= “Lo” Off SD4= “Hi” On CH5 SD5= “Lo” Off SD5= “Hi” On CH6 SD6= “Lo” Off SD6= “Hi” On – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 2 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A PIN DESCRIPTION (VQFN-40) Pin No Name 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 SD1 SD5 SD6 IE1 IE5 IE6 DTC1 OE1 DTC5 OE5 DTC6 OE6 VB GND 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 VREF VDD SCP SD4 SD3 SD2 IE4A IE4 IE3 IE2 OE4 OE3 OE2 DTC4 DTC3 DTC2 OUT2 OUT3 OUT4 OUT6_2 PVDD OUT6_1 OUT5_1 OUT5_2 OUT1_1 OUT1_2 I/O Function I I I I I I I O I O I O O P P ON/OFF Control for Channel 1 (CH1) ON/OFF Control for Channel 5 (CH5) ON/OFF Control for Channel 6 (CH6) Inverted Input for Error Amplifier 1 (EA1) Inverted Input for Error Amplifier 5 (EA5 Inverted Input for Error Amplifier 6 (EA6) Dead Time Control of Channel 1 (CH1) Output for Error Amplifier 1 (EA1) Dead Time Control of Channel 5 (CH5) Output for Error Amplifier 5 (EA5) Dead Time Control of Channel 6 (CH6) Output for Error Amplifier 6 (EA6) Reference Voltage 2.77V Output Ground Power Supply O I I I I I I I O O O I I I O O O O P O O O O O Reference Voltage 1.26V Output Short Circuit Protect Capacitor Connection Pin ON/OFF Control for Channel 4 (CH4) ON/OFF Control for Channel 3 (CH3) ON/OFF Control for Channel 2 (CH2) Inverted Input 2 for Error Amplifier 4 (EA4) Inverted Input for Error Amplifier 4 (EA4) Inverted Input for Error Amplifier 3 (EA3) Inverted Input for Error Amplifier 2 (EA2) Output for Error Amplifier 4 (EA4) Output for Error Amplifier 3 (EA3) Output for Error Amplifier 2 (EA2) Dead Time Control of Channel 4 (CH4) Dead Time Control of Channel 3 (CH3) Dead Time Control of Channel 2 (CH2) CH2 Totem Pole Type Output CH3 Totem Pole Type Output CH4 Totem Pole Type Output CH6 Synchronous Rectifier Side Output Output Buffer Power Supply CH6 Totem Pole Type Output CH5 Totem Pole Type Output CH5 Synchronous Rectifier Side Output CH1 Totem Pole Type Output CH1 Synchronous Rectifier Side Output – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 3 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A PIN DESCRIPTION (LQFP-48) Pin No Name 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 NC SD1 SD5 SD6 IE1 IE5 IE6 DTC1 OE1 DTC5 OE5 NC NC DTC6 OE6 VB GND 19 VREF 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 SCP SD4 SD3 SD2 NC NC IE4A IE4 IE3 IE2 OE4 OE3 OE2 DTC4 DTC3 DTC2 NC NC OUT2 OUT3 OUT4 OUT6_2 PVDD OUT6_1 OUT5_1 OUT5_2 OUT1_1 OUT1_2 NC VDD I/O Function I I I I I I I O I O I O O P P O I I I I I I I O O O I I I O O O O P O O O O O - ON/OFF Control for Channel 1 (CH1) ON/OFF Control for Channel 5 (CH5) ON/OFF Control for Channel 6 (CH6) Inverted Input for Error Amplifier 1 (EA1) Inverted Input for Error Amplifier 5 (EA5) Inverted Input for Error Amplifier 6 (EA6) Dead Time Control of Channel 1 (CH1) Output for Error Amplifier 1 (EA1) Dead Time Control of Channel 5 (CH5) Output for Error Amplifier 5 (EA5) Dead Time Control of Channel 6 (CH6) Output for Error Amplifier 6 (EA6) Reference Voltage 2.77V Output Ground Power Supply Reference Voltage 1.26V Output Short Circuit Protect Capacitor Connection Pin ON/OFF Control for Channel 4 (CH4) ON/OFF Control for Channel 3 (CH3) ON/OFF Control for Channel 2 (CH2) Inverted Input 2 for Error Amplifier 4 (EA4) Inverted Input for Error Amplifier 4 (EA4) Inverted Input for Error Amplifier 3 (EA3) Inverted Input for Error Amplifier 2 (EA2) Output for Error Amplifier 4 (EA4) Output for Error Amplifier 3 (EA3) Output for Error Amplifier 2 (EA2) Dead Time Control of Channel 4 (CH4) Dead Time Control of Channel 3 (CH3) Dead Time Control of Channel 2 (CH2) CH2 Totem Pole Type Output CH3 Totem Pole Type Output CH4 Totem Pole Type Output CH6 Synchronous Rectifier Side Output Output Buffer Power Supply CH6 Totem Pole Type Output CH5 Totem Pole Type Output CH5 Synchronous Rectifier Side Output CH1 Totem Pole Type Output CH1 Synchronous Rectifier Side Output – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 4 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A BLOCK DAIGRAM GND V DD PVDD OE1 IE 1 SD 1 DTC1 O U T1_1 CH1 S y n ch ro n o u s EA1 B uck 1 .2 4 5 V O U T1_2 osc SCP1 O E2 IE 2 SD2 DTC2 OUT2 EA2 CH2 B oost 1 .2 4 5 V SCP2 OE3 IE 3 SD 3 D TC3 EA3 CH3 In v e rtin g OUT3 0 .7 8 3 V SCP3 O E4 IE 4 SD4 IE 4 A D TC4 CH4 B o o st EA4 1 .2 4 5 V & 0 .3 7 V ( W L E D ) OUT4 SCP4 O E5 IE 5 SD5 DTC5 O U T5_1 CH5 S y n ch ro n o u s EA5 B uck 1 .2 4 5 V O U T5_2 SCP5 OE6 IE 6 SD6 DTC6 O U T6_1 CH6 S y n ch ro n o u s EA6 B oost 1 .2 4 5 V O U T6_2 SCP6 OSC & SCP & UVLO & V REF V REF VB SCP – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 5 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A ABSOLUTE MAXIMUM RATINGS Parameter Value 7 VDD Unit V V Output Voltage Symbol VDD VI VO VDD +0.3 V Output Current IO +20 mA I opeak +200 mA TC − 20 to + 85 ℃ Tstorage − 45 to + 125 ℃ Supply Voltage Input Voltage ( IE − , DTC − , SD − ) Output Peak Current ( t w ≦2µs, Duty≦5%) Operating Temperature Range Storage Temperature Range RECOMMENDED OPERATING CONDITIONS Parameter Startup Supply Voltage,CH6 Symbol VDD VDD VI VO Min 1.4 3.0 0.28 Unit V V V 0 Max 6.5 6.5 1.55 VDD Output Current, (CH1~CH6) IO - 15 Output Current of Error Amplifier I OE - − 60 mA µA Operating Free-Air Temperature TC − 20 + 85 ℃ Operating Voltage, VDD (CH1~CH6) Input Voltage, IE − , (IE1~IE6) Output Voltage V – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 6 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A ELECTRICAL CHARACTERISTICS, VDD = 5.0V (UNLESS OTHERWISE SPECIFIED) (SEE NOTE 1) UNDER VOLTAGE PROTECTION Parameter Symbol Test Condition Min Typ Max Unit Upper Threshold Voltage VUPH TC = 25℃ 2.53 2.72 2.91 V Lower Threshold Voltage VUPL TC = 25℃ - 2.47 - V Hysteresis ( VUPH – VUPL ) VHYS TC = 25℃ - 0.25 - V Min Typ Max Unit SHORT CIRCUIT PROTECTION CONTROL Parameter Symbol Test Condition 1.220 1.245 1.285 0.28 0.33 0.38 1.4 V Vtscd 0.58 0.63 0.68 V I SCP − 3 .5 − 2 .5 − 1 .5 µA Min Max Unit Input Threshold Voltage Vt Latch Reset Voltage Short-Circuit Detect Threshold Voltage SCP Terminal Source Current VR CH1, 2, 4,5,6, CH3 TC = 25℃ V REFERENCE VOLTAGE Parameter Symbol VREF Reference Voltage Short-Circuit Output Current I os Input Voltage Regulation VRI Output Regulation VRO Reference Voltage Change with Temperature ∆VREF Test Conditions I REF = −1mA , TC = 25℃ 1.227 1.245 1.263 VREF = 0 I REF = −1mA , VDD = 3.0V to 6.5V I REF = −0.1mA to − 1mA ∆VREF VREF V − 35 − 17 −8 mA − 10 - 10 mV − 10 - 10 mV - 0.5 - % VREF TC = − 20 ℃ to + 85℃ Note 1: Typical values of all parameters except for Typ is specified at TC =25℃. – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 7 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A ELECTRICAL CHARACTERISTICS, VDD = 5.0V (UNLESS OTHERWISE SPECIFIED) (SEE NOTE 1) (CONT.) EA (ERROR AMPLIFIER) Parameter Symbol Test Condition Min Typ Max Unit CH1,2,5,6 CH3 CH4 CH4 CH1~6 VI = 0.28V to1.55V 1.227 0.768 1.227 0.352 1.245 0.783 1.245 0.370 1.263 0.798 1.263 0.388 V - ±10 ±20 nA CH1~6 0.28 - 1.55 V dB MH z Threshold Voltage VTH VTH3 VTH4 VTH4A Input Bias Current I IB Input Voltage Range VIR Open-Loop Voltage Gain A VO 65 83 - Unity-Gain Bandwidth BW1 - 10 - VOS+ 1.3 - - VOS− - - 0.2 Output Voltage Swing Output Sink Current I OS+ OE=0.7V 2.5 5.0 - Output Source Current I OS − OE=0.7V - − 106 − 60 V mA µA DEAD-TIME CONTROL Parameter Symbol I BDTC Input Bias Current Input Threshold Voltage (DTC1,2,4,5) Input Threshold Voltage (DTC6) Input Threshold Voltage(DTC3) Vd0 Vd100 V6d0 V6d100 Test Condition VDTC = 0.2V to 1.3V Min Typ Max Unit - - 200 nA Duty = 0%, f OSC = 500kHz 0.323 0.423 Duty = 100%, 1.125 1.225 f OSC = 500kHz V Duty = 0%, f OSC = 500kHz 0.223 0.323 Duty = 100%, 1.025 1.125 f OSC = 500kHz V V3d0 Duty=0%, f OSC =500kHz V3d100 Duty=100%, f OSC =500kHz - 1.125 1.225 0.323 0.423 - V – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 8 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A ELECTRICAL CHARACTERISTICS, VDD = 5.0V (UNLESS OTHERWISE SPECIFIED) (SEE NOTE 1) (CONT.) OUTPUT STAGE Parameter Symbol ROH Output ON Resistor ROL SHUTDOWN ( SD − ) Parameter High Level SD − Low Level SD − Input Current Test Condition Min I O = − 15mA (CH1~CH5) - Typ Max 18 30 Unit Ω I O = −15mA (CH6) - 9 15 I O = 15mA (CH1~CH5) - 16 25 I O = 15mA (CH6) - 9 15 Min 1.4 - Typ ±10 Max 0.6 ±20 Unit V V nA Min - Typ - Max 10 Unit µA - 4.8 7.0 mA Symbol Test Condition HSD Active Mode LSD Stand-by Mode CH1~CH6 Ω OPERATING CURRENT Parameter Supply Current Symbol Test Condition I DD−OFF SD1~SD6= 0V I DD−ON SD1~SD6= “Hi” – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 9 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A APPLICATION CIRCUIT CH1 Synchronous Solution CH1 Non-Synchronous Solution – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 10 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A APPLICATION CIRCUIT CH2 Solution CH3 Solution VIN OE3 OUT3 IE3 SD3 Shutdown Control AAT1403A CH3 Inverting Vout 3 IE3 V REF V REF DTC3 – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 11 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A APPLICATION CIRCUIT CH4 Solution – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 12 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A APPLICATION CIRCUIT CH5 Synchronous Solution CH5 Non-Synchronous Solution – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 13 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A APPLICATION CIRCUIT CH6 Synchronous Solution CH6 Non-Synchronous Solution – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 14 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A CH6 Timing Chart – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 15 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A CH5 Timing Chart – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 16 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A CH1 Timing Chart – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 17 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A CH2,4 Timing Chart – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 18 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A CH3 Timing Chart – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 19 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A Soft-Start and Shutdown Operation – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 20 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A OPERATION CONDITION SETTING – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 21 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A PACKAGE DIMENSION VQFN40 PACKAGE – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 22 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A PACKAGE DIMENSION VQFN40 PACKAGE (CONT.) – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 23 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A PACKAGE DIMENSION (CONT.) VQFN40 PACKAGE (CONT.) DIMENSIONS IN MILLIMETERS SYMBOL DIMENSIONS IN INCHES MIN TYP MAX MIN TYP MAX A 0.80 0.90 1.00 0.031 0.035 0.039 A1 0.00 0.02 0.05 0 0.0008 0.0020 b 0.225 0.250 0.275 0.009 0.010 0.011 C 0.19 0.20 0.25 0.0075 0.0080 0.0100 D 5.90 6.00 6.10 0.232 0.236 0.240 D2 4.650 4.800 4.950 0.183 0.189 0.195 E 5.90 6.00 6.10 0.232 0.236 0.240 E2 4.650 4.800 4.950 0.183 0.189 0.195 e ----- 0.50 ----- ----- 0.020 ----- L 0.35 0.40 0.45 0.014 0.016 0.018 y 0 ----- 0.076 0 ----- 0.003 NOTE: THE TERMINAL #1 IDENTIFIER IS A LASER MARKED FEATURE. – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 24 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A PACKAGE DIMENSION LQFP48 PACKAGE – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 25 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A PACKAGE DIMENSION LQFP48 PACKAGE (CONT.) – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 26 of 27 V1.0 Advanced Analog Technology, Inc. AAT1403A PACKAGE DIMENSION LQFP48 PACKAGE (CONT.) SYMBOL DIMENSIONIN MILLIMETERS MIN TYP MAX A ----- ----- 1.60 A1 0.05 ----- 0.15 A2 1.35 1.40 1.45 b 0.17 0.22 0.27 C 0.09 ----- 0.20 E 8.80 9.00 9.20 E1 6.90 7.00 7.10 D 8.80 9.00 9.20 D1 6.90 7.00 7.10 e ----- 0.50 ----- L 0.45 0.60 0.75 L1 ----- 1.00 ----- θ o 0 C o 3.5 C 7.0 o C y 0 ----- 0.08 – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 27 of 27 V1.0