 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| Advanced Analog Technology, Inc. AAT1106 Preliminary and Provisional 2-CHANNEL STEP-UP PWM CONTROLLERS Features Complete PWM Power Control Circuitry Under-voltage Lockout Protection Totem pole Output Output Short Circuit Protection Dead Time ControlG 0 to 100% Wide Operating FrequencyG 10kHz to 800kHz Shut Down Control Power Good Protection General Description The AAT1106 series provides an integrated two-channel pulse-width-modulation (PWM) solution for the power supply of DC-DC system, this device offers the systems engineer the flexibility to tailor the power supply circuitry to a specific application. 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 common for the two channels. The AAT1106 contains two boost (step-up) exclusive circuit. Dead-time control (DTC) can be set to provide 0% to 100% dead time by resistive divider network. Soft start can be implemented by paralleling the DTC resistor with a capacitor. Two dead time control inputs are assigned for Ch-1 and Ch-2 individually, and dead time control inputs can be used to control on / off operation. With a minimum number of external components, the AAT1106 series offers a simple and cost effective solution. Pin Configuration TOP VIEW CT RT SHDN INV1 FB1 DTC1 OUT1 GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Vref SCP PRDB INV2 FB2 DTC2 OUT2 VDD (TSSOP-16 PACKAGE) *Spec is subject to change without notice in this document. - - - xAEWAniN/|-1/2q Advanced Analog Technology, Inc. - V 0.1 Advanced Analog Technology, Inc. AAT1106 Pin Description Pin # Name 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CT RT SHDN INV1 FB1 DTC1 OUT1 GND VDD OUT2 DTC2 FB2 INV2 PRDB SCP Vref I/O I External timing capacitance I External timing resistance I Shut down input pin] internal pull "H"^ Description I Negative input for error amplifier 1 I Output for error amplifier 1 I Output 1 dead time / soft start setting O Output 1 Ground I Power supply O Output 2 I Output 2 dead time / soft start setting I Output for error amplifier 2 I Negative input for error amplifier 2 I Power good output pin I Timer latch setting O Reference voltage (2.505V) output - - - xAEWAniN/|-1/2q Advanced Analog Technology, Inc. - V 0.1 Advanced Analog Technology, Inc. AAT1106 Absolute Maximum Ratings CHARACTERISTICS Supply voltage Input voltage (IN-, DTC, SHDN) Output voltage SYMBOL VDD VI VO VALUE 7 UNIT V V V VDD VDD +0.3 -120/+120 -20 to 85 -65 to 150 500 Output current Operating free-air temperature range Storage temperature range Power dissipation Recommended Operating Conditions IO Tope Tstg mA o o C C Pd mW Supply voltage, VDD Input voltage, INV1, INV2 Output voltage OSC capacitor OSC resistor (Note 1) Oscillator frequency Output current, Iout1, Iout2 Operating free-air temperature Symbol VDD Vcm VO Min 4.0 0.5 0 CT RT f OSC 100 5.1 10 -20 Max 6.5 1.6 VDD 15000 50 800 Unit V V V pF k kHz mA o IO Tope +50/-50 85 C - - - xAEWAniN/|-1/2q Advanced Analog Technology, Inc. - V 0.1 Advanced Analog Technology, Inc. AAT1106 Electrical Characteristics, VDD = 5.0V (Unless Otherwise Specified) (See Note 1) Oscillator Parameter Test Condition Frequency Frequency change with VDD f OSC f dV C T = 220pF, R T = 10k VDD = 4.0V to 6.0V, TA = 25 oC C T = 220pF, R T = 10k Min 320 Typ 400 Max Unit 480 KHz 1 % Under-voltage Protection Parameter Test Condition Min Typ Max Unit Upper threshold voltage Lower threshold voltage Hysteresis ( VUPH - VUPL ) Short Circuit Protection Control Parameter VUPH VUPL VHYS TA = 25 C TA = 25 oC TA = 25 oC o 2.6 2.23 2.9 2.53 0.37 3.2 2.83 V V V Test Condition Min Typ Max Unit Input threshold voltage Short-circuit detect threshold voltage SCP terminal source current Standy Voltage Latch Voltage Shun Down Control] Vr1 Ch-1, 2 2.1 1.48 -1.5 2.4 1.64 -2.5 50 30 2.65 1.8 -3.5 100 100 Vr 2 I SCP VSTB VLT V V A mV mV Internal pull "H"^ Test Condition Min Typ Max Unit Parameter Shut down enable voltage Shut down release voltage VsdL VsdH TA = 25 C TA = 25 oC 2.0 o 0.5 V V Note1 : Typical values of all parameters are specified at TA =25 oC. - - - xAEWAniN/|-1/2q Advanced Analog Technology, Inc. - V 0.1 Advanced Analog Technology, Inc. AAT1106 Electrical Characteristics, VDD = 5.0V (Unless Otherwise Specified) (See Note 1) (continued) Reference Voltage Parameter Test Conditions Min o Typ Max Unit Internal reference Voltage Reference voltage Input voltage regulation Output regulation Vrefi VREF VRI VRO I REF = -1mA , TA = 25 C 1.220 I REF = -1mA , TA = 25 oC I REF = -1mA , VDD = 4.0V to 6.0V I REF = -0.1mA to -1mA 1.233 1.246 2.430 2.505 2.580 1 1 5 V mV mV EA (Error Amplifier) Parameter Test Condition Min Typ Input offset voltage Input bias current Input voltage range Open-loop voltage amplification Output voltage swing Output sink current Output source current VIO I IB VIR A VD VOM + VOM - I OM + I OM - Ch-1,2, AV=1 Ch-1,2 Ch-1,2 15 0.5 70 2.3 FB=1.25V FB=1.25V 3 -45 60 85 2.5 0.7 20 -75 80 Max Unit 6 mV 100 1.6 nA V dB V 0.9 mA A dB Common-mode rejection ratio CMRR - - - xAEWAniN/|-1/2q Advanced Analog Technology, Inc. - V 0.1 Advanced Analog Technology, Inc. AAT1106 Electrical Characteristics, VDD = 5.0V (Unless Otherwise Specified) (See Note 1) (continued) Dead Time Control & PWM Parameter Test Condition Min Typ Max Unit 0.1 1 A Input bias current I BDT VDTC = 2V Input threshold voltage (DTC) Latch input voltage Latch mode source current Output Stage Parameter Vd 0 Duty = 0%, f OSC = 10kHz Vd100 Duty = 100%, VDT IDT f OSC = 10kHz IDT = 100A 1.38 1.87 1.48 1.97 0.1 1.58 2.07 0.3 V V A DTC1,2=2.0V 200 500 Test Condition High-level output voltage Low-level output voltage Rise time Fail time Leakage current Operating Current Parameter VOH VOL Trise Tfail Ipeak IO=-50mA IO=+50mA CL=1000pF CL=1000pF Vo =6.0V Min 3.6 Typ 4.0 0.8 100 100 Max Unit V 1.2 V nS nS 5 A Test Condition Min Supply current I DD-OFF I DD-ON Output "OFF" state PRT =10 k Typ 1.8 Max Unit mA 2.0 mA - - - xAEWAniN/|-1/2q Advanced Analog Technology, Inc. - V 0.1 Advanced Analog Technology, Inc. AAT1106 Function Block Diagram FB1 INV1 VDD 1.233V Vrefi Err-Amp Scpcomp PWM OUT1 GND Vr1 Vrefi 1.233V UVC VDD INV2 FB2 DTC1 Err-Amp PWM OUT2 CT UVC DTC2 UVC OSC RT UVC LATCH VDD LATCH UVLO VDD PRDB SCP SCP UVC Vref SHDN SHUT_DOWN CONTROL sdc VREF Vref - - - xAEWAniN/|-1/2q Advanced Analog Technology, Inc. - V 0.1 Advanced Analog Technology, Inc. AAT1106 Application Circuit 1 VDD VDDP C11 L1 U1 VDD VP1 C1 R5 VP1 PRDB OUT1 FB1 Q1 D1 C9 R1 INV1 R2 VDDP VP2 R3 L2 C2 R6 FB2 D2 VP2 C10 AAT1106 INV2 Q2 R4 OUT2 SHDN SHDN VREF CT DTC1 RT DTC2 GND CT RT C3 R7 R9 C20 SCP C4 R8 R10 C5 - - - xAEWAniN/|-1/2q Advanced Analog Technology, Inc. - V 0.1 Advanced Analog Technology, Inc. AAT1106 Application Circuit 2 option circuit 3: for power good protection option circuit 1: charge pump circuit VDD R20 Q3 VDDP C11 PRDB L1 C8 D3 D4 C7 VN3 U1 VDD VP1 C1 R5 VP1 D1 Q1 C9 PRDB OUT1 FB1 R1 INV1 R2 VDDP VP2 R3 L2 C2 R6 FB2 D2 AAT1106 INV2 Q2 VP2 R4 OUT2 C10 SHDN SHDN VREF CT DTC1 RT DTC2 GND CT RT C3 R7 R9 C20 PRDB R12 R11 Q4 option circuit 2: for Vp3 discharge SCP C4 R8 R10 C5 - - - xAEWAniN/|-1/2q Advanced Analog Technology, Inc. - V 0.1 Advanced Analog Technology, Inc. AAT1106 Boost ] Step-up^ Timing Chart 2.4V 1.97V DTC CT FB 1.48V PWMOUTPUT OUTPUT 1.64V SCP tDT SCPCOMP 2.53V VDD Lockout free PRDB - - - xAEWAniN/|-1/2q Advanced Analog Technology, Inc. - V 0.1 Advanced Analog Technology, Inc. AAT1106 Package Dimension (Unit: Mil) D A1 A A2 E E1 12X e b y D IM E N S IO N S IN M IL L IM E T E R S D IM E N S IO N S IN IN C H E S A A1 A2 b C D E E1 e L y K M IN 1 .0 5 0 .0 5 0 .2 0 4 .9 0 6 .2 0 4 .3 0 0 .5 0 NOM 1 .1 0 0 .1 0 1 .0 0 0 .2 5 0 .1 2 7 5 .0 7 5 6 .4 0 4 .4 0 0 .6 5 0 .6 0 4 MAX 1 .2 0 0 .1 5 1 .0 5 0 .2 8 5 .1 0 6 .6 0 4 .5 0 0 .7 0 0 .0 7 6 8 M IN 0 .0 4 1 0 .0 0 2 0 .0 0 8 0 .1 9 3 0 .2 4 4 0 .1 7 0 0 .0 2 0 NOM 0 .0 4 3 0 .0 0 4 0 .0 3 9 0 .0 1 0 0 .0 0 5 0 .1 9 9 8 0 .2 5 2 0 .1 7 3 0 .0 2 6 0 .0 2 4 4 MAX 0 .0 4 7 0 .0 0 6 0 .0 4 1 0 .0 1 1 0 .2 0 0 0 .2 6 0 0 .1 7 7 0 .0 2 8 0 .0 0 3 8 - - - xAEWAniN/|-1/2q Advanced Analog Technology, Inc. - V 0.1 |
Price & Availability of AAT1106
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |