at1780 Aimtron Technology, at1780 Datasheet
at1780
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at1780 Summary of contents
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... Preliminary Product Information 640kHz/1.2MHz,Low-Noise Step-Up Current-Mode PWM Controller General Description The AT1780 is a current-mode step-up DC/DC converter with a 1.6A, 0.21Ω power MOSFET. The soft-start function is programmed with an external capacitor, which sets the input current ramp rate ideal for generating bias voltages for LCD panels ...
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... No.9, PARK AVENUE II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 Fax: 886-3-563-0879 3/24/06 REV 1.1 Preliminary Product Information 640kHz/1.2MHz,Low-Noise Step-Up Current-Mode PWM Controller 1780 Marking 1780,data code with one bottom line Description WWW: http://www.aimtron.com.tw Email: service@aimtron.com.tw 2 AT1780 ...
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... Symbol Min COMP1 C -- COMP2 R -- COMP f 540 OSC1 f 1000 OSC2 T -30 OP WWW: Email: 3 AT1780 Rated Value Unit Min. Max. -0.3 + -0 — 1.2 A — 330 mW 0 -30 + — +150 C 0 -40 +150 C 0 — ...
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... LXOFF 1.2V SS /SHDN, FREQ 2.6V to 5.5V IN /SHDN, FREQ 2.6V to 5.5V IN SHDN, FREQ I FSLC I SHDN WWW: http://www.aimtron.com.tw Email: service@aimtron.com.tw 4 AT1780 Values Unit Min. Typ. Max. 2.6 5.5 V 2.1 2.3 2.5 V 0.218 0.35 mA 2.045 5 0.1 10 μA 1.222 1.24 1.258 0.05 0.15 %/V 140 μmhos 500 V/V 540 640 ...
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... Vout=10V fosc=640kHz 9.65 L=10uH 200 240 CH1:Output voltage,100mV/div/AC CH4:Output current,100mA/div/DC Vout=10V,fosc=1.2MHz,L=4.7uH R1=100k,C1=470PF,C2=18PF WWW: Email: 5 AT1780 Vin=3.3V Vout=10V fosc=1.2MHz L=4.7uH 100 1000 Vin=3.3V Vout=10V fosc=1.2MHz L=4.7uH 120 160 200 240 Output current Iout (mA) http://www.aimtron.com.tw service@aimtron.com.tw ...
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... REV 1.1 Preliminary Product Information 640kHz/1.2MHz,Low-Noise Step-Up Current-Mode PWM Controller CH1:LX voltage,5V/div/DC CH4:Inductor current,500mA/div/DC Vout=10V,fosc=1.2MHz,L=4.7uH CH1:LX voltage,5V/div/DC CH2:Vin and /SHDN voltage,2V/div/DC CH1:SS voltage,2V/div/DC CH4:Iin current,500mA/div/DC Vout=10V,Iout=100mA, fosc=1.2MHz,L=4.7uH WWW: http://www.aimtron.com.tw Email: service@aimtron.com.tw 6 AT1780 ...
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... GND SS Css Figure 1.Typical application circuit CRS01 10UF AT1780 FLSC 0.1UF 8 SS 0.1UF 0.033UF D3 D7 0.1UF D6 WWW: Email: 7 AT1780 Vout Cout R1 Cout R2 VAA 10V/150mA 10UF 332K 47K D5 VGH 30V/5mA D4 1UF 1UF VGL -10V/10mA 4.7UF http://www.aimtron.com.tw service@aimtron.com.tw ...
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... Preliminary Product Information 640kHz/1.2MHz,Low-Noise Step-Up Current-Mode PWM Controller MILLIMETERS MAX MIN 0.043 0.94 0.006 0.05 0.014 0.25 0.007 0.13 0.120 2.95 0.65 BSC 0.120 2.95 0.198 4.78 0.026 0.41 6° 0° 0.525 BSC WWW: Email: 8 AT1780 α NOTES MAX 1.10 - 0.15 - 0.36 - 0. 3.05 - 5.03 0.66 - 6° - http://www.aimtron.com.tw service@aimtron.com.tw ...
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... AT1780 Pb-Free Assembly Large Body Small Body Pkg. thickness Pkg. thickness ≥2.5mm or Pkg. ≥2.5mm or Pkg volume ≥350mm volume ≥350mm 3° ...