AIC1341CS Analog Intergrations Corporation, AIC1341CS Datasheet
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AIC1341CS
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AIC1341CS Summary of contents
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FEATURES Provide Triple Accurate Regulated Voltages l Optimized Voltage-Mode PWM Control l Dual N-Channel MOSFET Synchronous Drivers l Fast Transient Response l Adjustable Over Current Protection using External Current Sense Resistor Required. Programmable Softstart Function l ...
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... UGATE 2 5 PHASE 1 VIN2 7 LGATE 16 GATE3 10 FB3 PGND 15 11 FB1 13 GATE2 8 FB2 6 COMP1 GND SD Typical Triple-Output Application ORDER NUMBER AIC1341CS (SO 16) AIC1341 +5VIN + GND Q1 VOUT1 + Q2 PIN CONFIGURATION PHASE LGATE 16 1 UGATE 15 PGND OCSET VCC COMP1 ...
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ABSOLUTE MAXIMUM RATING Absolute Maximum Ratings Supply Voltage (VCC).............................................................................................................. 15V UGATE....................................................................................................GND - 0. LGATE ....................................................................................................GND - 0. Input Output and I/O Voltage .................................................................................GND - 0. Operating Conditions Ambient Temperature Range ........................................................................................ 0 C ...
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ELECTRICAL CHARACTERISTICS PARAMETER OSCILLATOR and REFERENCE Free Running Frequency FB2 Reference Voltage FB3 Reference Voltage LINEAR CONTROLLER Regulation Under-Voltage Level PWM CONTROLLER ERROR AMPLIFIER DC GAIN Gain Bandwidth Product Slew Rate PWM CONTROLLER GATE DRIVER Upper Drive Source Upper ...
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PIN DESCRIPTIONS Pin 1: PHASE: Over-current detection pin. Con- nect the PHASE pin to source of the external MOSFET. This pin detects the voltage drop across the high-side N-MOSFET current protection. Pin 2: UGATE: External high-side N-MOSFET gate drive ...
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Pin 15: PGND: Driver power GND pin. PGND should be connected to a low impedance ground plane in close n TYPICAL PERFORMANCE CHARACTERISTICS L GATE Over Load Inductor Current Applied 10A/div Fig.2 Over-Current Operation on Inductor Pin 16: LGATE: Lower ...
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TYPICAL PERFORMANCE CHARACTERISTICS V OUT1 5A to 12A Load Step Fig.4 Transient Response of PWM Output n BLOCK DIAGRAM FB3 GATE3 + + GATE2 1.26V FB2 LUV - 3. 10uA 0. SLOW DISCHARGE 4V FAST ...
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DESCRIPTION The AIC1341 is designed for applications with multiple voltage demand. This IC has one PWM controller and two linear controllers. The PWM controller is designed to regulate the voltage ( driving 2 MOSFETs ( B y ...
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Shutdown Compatible with the TTL logic level, by holding the SD (pin3) pin low will activate the controller. If connecting a resistor to ground, make sure the resistor is less than 4.7K for normal operation. Layout Considerations Any inductance in ...
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OUT3 + C OUT3 Q4 V Css OUT2 + C OUT2 Fig.6 Printed circuit board power planes and islands After the initial transient, the ESL dependent term drops off. Because the strong relationship be- ...
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OUT I = RIPPLE 200KHz oscillator frequency. The inductor must be able to withstand peak cur- rent without saturation, and the copper resistance in the winding should be kept ...
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Linear Output Capacitor The output capacitors for the linear controller provide dynamic load current. The linear controller uses dominant pole compensation integrated in the error amplifier and is insensitive to output ca- ...
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... APPLICATION CIRCUIT 10 +12VIN 1 F +5.0VIN 6030L GATE3 VOUT3 3.3V 3.9K + 2.4K +5.0VIN GATE2 6030L VOUT2 2.5V 2.4K + 2.4K Circuit 1 Multiple Voltage Power application Circuit AIC1341CS VCC 4 14 OCSET SS UGATE 2 5 0.1 F PHASE 1 VIN2 7 LGATE 16 10 FB3 PGND 15 11 FB1 13 8 33pF FB2 6 COMP1 GND SD 1000pF 1000 F*2 ...
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PACKAGE DIMENSIONS l 16 LEAD PLASTIC SO (300 mil) (unit: mm SYMBOL MIN A 2.35 A1 0.10 B 0.33 C 0.23 D 10.10 10.50 E 7.40 e 1.27(TYP) H 10.00 10.65 ...