AAT1187A Advanced Analog Technology, Inc., AAT1187A Datasheet
AAT1187A
Related parts for AAT1187A
AAT1187A Summary of contents
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... Typical 2.3mA in Operation QFN-24 Package Available PIN CONFIGURATION BOOST CONVERTER FOR WLED DRIVER GENERAL DESCRIPTION The AAT1187A provides a boost PWM controller, positive charge pump, low dropout linear regulator, V operational amplifier and one high voltage switch COM (up to 28V) for TFT LCD display. RESET pin will issue ...
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... TYPICAL APPLICATION PACKING TEMP. RANGE T: Tape – +85 C 24-4*4 and Reel – 台 灣 類 比 科 技 股 份 有 限 公 司 Advanced Analog Technology, Inc. – – Version 1.00 Page AAT1187A MARKING MARKING DESCRIPTION TBA – September 2009 TBA ...
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... Exposure to absolute maximum rating conditions for extended periods may affect device reliability. = +125 C J – – 台 灣 類 比 科 技 股 份 有 限 公 司 Advanced Analog Technology, Inc. – – Version 1.00 Page September 2009 AAT1187A SYMBOL VALUE ...
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... MAX SYMBOL TEST CONDITION – – 台 灣 類 比 科 技 股 份 有 限 公 司 Advanced Analog Technology, Inc. – – Version 1.00 Page September 2009 AAT1187A MIN TYP MAX UNIT 2 2.11 2.21 2.31 V 2.01 2.11 2.2 - 0.4 ...
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... FBP 1.5V B3 FBP R ONP3 R ONN3 I DRVP – 台 灣 類 比 科 技 股 份 有 限 公 司 Advanced Analog Technology, Inc. – – Version 1.00 Page AAT1187A MIN TYP MAX 1.228 1.240 1.252 0 –40 - 0.05 0.15 70 105 - 700 MIN TYP MAX 1 ...
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... 1.5V ONDC DPM FLK – – 台 灣 類 比 科 技 股 份 有 限 公 司 Advanced Analog Technology, Inc. – – Version 1.00 Page September 2009 AAT1187A MIN TYP MAX 2.5 - 5.5 1.224 1.240 1.256 0 +40 –40 - 350 500 ...
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... OPAI 2V, OPAI 20 3.5V to 4.5V, 90% S OPAI – – 台 灣 類 比 科 技 股 份 有 限 公 司 Advanced Analog Technology, Inc. – – Version 1.00 Page September 2009 AAT1187A MIN TYP MAX 1 0.2 1.0 1.1 1 1.20 1.24 1.28 MIN ...
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... OUT I OUT F REQ 2.5 2.8 3.1 3.4 3.7 4.0 4.3 4.6 Input Voltage (V) Low Voltage LDO Output Voltage vs. Output Current 100 150 200 Output Current (A) Boost Converter Frequency vs. Input Voltage F =Low REQ I = 150mA OUT 2.5 2.8 3.1 3.4 3.7 4.0 4.3 4.6 Input Voltage (V) – September 2009 AAT1187A = 100mA = 200mA = 300mA =1.2MHz 4.9 5.2 5.5 250 300 4.9 5.2 5.5 ...
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... Advanced Analog Technology, Inc . – – Version 1.00 Page AAT1187A = + unless otherwise noted.) C Boost Converter PWM Discontinuous Mode: Heavy Load V = 3.3V 9.8V/300mA, L= 6.8 µ AVDD 1 µ ...
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... VGH 5V/div VGHM 10V/div – 台 灣 類 比 科 技 股 份 有 限 公 司 Advanced Analog Technology, Inc . – – Version 1.00 Page AAT1187A = + unless otherwise noted.) C Boost Converter Load Transient Response V = 3.3V 9.8V µ AVDD ...
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... Advanced Analog Technology, Inc . – – Version 1.00 Page + unless otherwise noted.) C High Voltage Switch Control Waveform 5ms/div V Small Signal Waveform COM 500ns/div – September 2009 AAT1187A ...
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... Main PWM Error Amplifier Output Main PWM Feedback Pin Frequency Select Pin LX MOS Ground – 台 灣 類 比 科 技 股 份 有 限 公 司 Advanced Analog Technology, Inc . – – Version 1.00 Page AAT1187A DESCRIPTION – September 2009 ...
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... Advanced Analog Technology, Inc. FUNCTION BLOCK DIAGRAM AAT1187A – – 台 灣 類 比 科 技 股 份 有 限 公 司 Advanced Analog Technology, Inc . – – Version 1.00 Page September 2009 AAT1187A ...
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... Advanced Analog Technology, Inc. TYPICAL APPLICATION CIRCUIT AAT1187A Normal Circuit – – 台 灣 類 比 科 技 股 份 有 限 公 司 Advanced Analog Technology, Inc . – – Version 1.00 Page September 2009 AAT1187A ...
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... Advanced Analog Technology, Inc. TYPICAL APPLICATION CIRCUIT AAT1187A Circuit for DRVP Floating – – 台 灣 類 比 科 技 股 份 有 限 公 司 Advanced Analog Technology, Inc . – – Version 1.00 Page September 2009 AAT1187A ...
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... Advanced Analog Technology, Inc. POWER ON AND POWER OFF TIMING CHART AAT1187A – – 台 灣 類 比 科 技 股 份 有 限 公 司 Advanced Analog Technology, Inc . – – Version 1.00 Page September 2009 AAT1187A ...
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... AAT1187A activates timer. If OTP condition remains for 160ms, AAT1187A launches fault latch. Setting the Boost Soft-Start The AAT1187A has an adjustable soft-start function to prevent high inrush current during start up. The soft-start function can be implemented with an external capacitor with a 4µA constant current. ...
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... Switching Frequency S D: Duty Cycle ∆I : Inductor Peak-to-Peak Ripple Current Lpeak-peak I : Input DC Current IN The AAT1187A SW current limit (I saturation current rating (I ) should exceed I LSAT and the inductor's DC current rating should exceed I For optimal efficiency, choose an inductor with less DC resistance (r ). ESR DSR DCR L ...
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... Figure 1. Input Bypass Capacitor Results in V – 台 灣 類 比 科 技 股 份 有 限 公 司 Advanced Analog Technology, Inc . – – Version 1.00 Page AAT1187A is decoupled from input capacitor IN Drop – September 2009 (Pin2 ...
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... Figure 3. Closed-Current Loop for Boost with PCM – 台 灣 類 比 科 技 股 份 有 限 公 司 Advanced Analog Technology, Inc . – – Version 1.00 Page AAT1187A VREF COMP Figure 2. Feedback Circuit of transient response. ...
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... Where w s Therefore function current-sense amplifier transresistance For the boost converter esr For AAT1187A compensation The closed-current loop transfer function icl is capacitor ESR – 台 灣 類 比 科 技 股 份 有 限 公 司 ...
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... 7. 38.5cF – 台 灣 類 比 科 技 股 份 有 限 公 司 – Advanced Analog Technology, Inc . – – Version 1.00 Page September 2009 AAT1187A ∘ crossover frequency, Therefore, is determined by ...
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... Figure 8. The Positive LDO Driver – 台 灣 類 比 科 技 股 份 有 限 公 司 – Advanced Analog Technology, Inc . – – Version 1.00 Page September 2009 AAT1187A Output Voltage GH and 51k , and with the following equation. GH 1 ...
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... V ADJ Figure 10. LDO Circuit Setting the Reset Voltage The AAT1187A series has an integrated reset voltage detector with an open drain output. (Figure 11) Once V VDIV , in series RESET pin would be pulled low by internal NMOS can be calculated as below V 1.1V DETECT ...
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... Page pin connects a capacitor, C DPM delay time )/I DPM DPM DPM C 62k C DPM DPM = V . Even VIN fast below 0.5V, GPM GHM status. GHM GH Figure 13. GPM Circuit Buffer for TFT-LCD. The 10 output resistor and 1µF – September 2009 AAT1187A , to analog ground ...
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... V bypass DD REF – 台 灣 類 比 科 技 股 份 有 限 公 司 Advanced Analog Technology, Inc . – – Version 1.00 Page AAT1187A Figure 14. Top Layer Figure 15. Power Layer Figure 16. GND Layer Figure 17. Bottom Layer – September 2009 ...
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... Dimensions In Millimeters Symbol MIN A 0.75 A1 0.00 b 0.18 C 0.19 D 3.90 D2 2.70 E 3.90 E2 2.70 e ------ L 0.30 y 0.00 TYP MAX 0.90 1.00 0.02 0.05 0.23 0.30 0.20 0.25 4.00 4.10 2.80 2.90 4.00 4.10 2.80 2.90 0.50 ------ 0.40 0.50 ----- 0.076 AAT1187A Footprint of PCB 0.5 2.8 2.8 2.8 2.8 0.23 0.8 3.3 3.3 4.9 4.9 – 台 灣 類 比 科 技 股 份 有 限 公 司 Advanced Analog Technology, Inc . – – Version 1.00 Page AAT1187A 3.3 3.3 4.9 4.9 – September 2009 ...
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... Original Modify ‘order information’ Adding ‘typical application characteristics’ Adding ‘application note and description’ AAT1187A modify application note Adding GPM description – 台 灣 類 比 科 技 股 份 有 限 公 司 Advanced Analog Technology, Inc . – ...