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AAT1106 Dataheets PDF



Part Number AAT1106
Manufacturers Advanced Analog Technology
Logo Advanced Analog Technology
Description 2-CHANNEL STEP-UP PWM CONTROLLERS
Datasheet AAT1106 DatasheetAAT1106 Datasheet (PDF)

Advanced Analog Technology, Inc. AAT1106 Preliminary and Provisional 2-CHANNEL STEP-UP PWM CONTROLLERS Features z Complete www.DataSheet4U.com z z z z z z z PWM Power Control Circuitry Under-voltage Lockout Protection Totem pole Output Output Short Circuit Protection Dead Time Control¡G 0 to 100% Wide Operating Frequency¡G 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 th.

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Advanced Analog Technology, Inc. AAT1106 Preliminary and Provisional 2-CHANNEL STEP-UP PWM CONTROLLERS Features z Complete www.DataSheet4U.com z z z z z z z PWM Power Control Circuitry Under-voltage Lockout Protection Totem pole Output Output Short Circuit Protection Dead Time Control¡G 0 to 100% Wide Operating Frequency¡G 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. – ¥ ÆWÃþ¤ñ¬ì§ÞªÑ¥÷¦³-½q – – x Advanced Analog Technology, Inc. – V 0.1 Advanced Analog Technology, Inc. AAT1106 Pin Description Pin # Name 1 2 3 www.DataSheet4U.com 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 – ¥ ÆWÃþ¤ñ¬ì§ÞªÑ¥÷¦³-½q – – x 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 www.DataSheet4U.com SYMBOL VDD VI VO VALUE 7 VDD VDD +0.3 -120/+120 -20 to 85 -65 to 150 500 UNIT V V V Output current Operating free-air temperature range Storage temperature range Power dissipation IO Tope Tstg mA o o C C Pd mW Recommended Operating Conditions 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 kΩ kHz mA o IO Tope +50/-50 85 C – ¥ ÆWÃþ¤ñ¬ì§ÞªÑ¥÷¦³-½q – – x 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 www.DataSheet4U.com f OSC f dV C T = 220pF, R T = 10kΩ VDD = 4.0V to 6.0V, TA = 25 oC C T = 220pF, R T = 10kΩ 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 µA 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. – ¥ ÆWÃþ¤ñ¬ì§ÞªÑ¥÷¦³-½q – – x 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 www.DataSheet4U.com 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 Input voltage regulation Output regulation EA (Error Amplifier) Parameter Test Condition Min.


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