AIP3845DA.TB

Wuxi I-CORE Electronics Co., Ltd. Tab: 835-12 rev:B3 Number: AiP384X-AX-QT-N027EN or e AiP384X High Performance Current Mode PWM Controller Specification i-c Product Specification Revision History ： Version 2019-07-A1 2020-01-A2 2021-07-A3 Date 2019-07 2020-01 2021-07 Description New Add Ordering Information Add Operating Temperature and Storage Temperature Address：Building B4,NO.777,Jianzhu Road,Binhu District,Wuxi City,Jiangsu Province http://www.i-core. cn P.C：214072 1/ 9 VER：2021-07-A3 Wuxi I-CORE Electronics Co., Ltd. Tab: 835-12 rev:B3 Number: AiP384X-AX-QT-N027EN 1、General Description or e The AiP3842/AiP3843/AiP3844/AiP3845 are fixed frequency current-mode PWM controller. They are specially designed for Off-Line and DC-to-DC converter applications with minimum external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier. Current sensing comparator, and a high current totempole output Ideally suited for driving a power MOSFET. Protection circuit Includes built in under-voltage lockout and current limiting. The AiP3842 and AiP3844 have UVLO thresholds of 16V (on) and 10V (off). The AiP3843 and AiP3845 are 8.8V (on) and 7.6V (off) .The AiP3842 and AiP3843 can operate within 100% duty cycle. The AiP3844 and AiP3845 can operate with 50% duty cycle. Features:  Low Start Up Current  Maximum Duty Clamp  UVLO With Hysteresis  Operating Frequency Up To 500KHz  Packaging form: DIP8/SOP8  Wide range of operating temperatures: -40℃ to +85℃ Ordering Information： Tube packing specifications: Type number packaging form SOP8 AiP384X Tube quantity 100 PCS/tube Boxed tube quantity 100 tube/box Boxed quantity 10000 PCS/box i-c AiP384X SA.TB Marking code AiP384X DA.TB DIP8 AiP384X 50 PCS/tube 40 tube/box 2000 PCS/ box Packing box number Packing quantity 10 box/pack 100000 PCS/pack 10 box/pack 20000 PCS/pack Notes Dimensions of plastic enclosure: 4.9mm×3.9mm Pin spacing: 1.27mm Dimensions of plastic enclosure: 9.2mm×6.4mm Pin spacing: 2.54mm Reel packing specifications： Type number packaging form Marking code Reel quantity Boxed reel quantity Packing quantity AiP384XSA.TR SOP8(1) AiP384X 4000 PCS/reel 8000 PCS/box 64000 PCS/pack AiP384XSA.TR SOP8(2) AiP384X 2500 PCS/reel 5000 PCS/box 40000 PCS/pack Notes Dimensions of plastic enclosure:4.9mm×3.9mm Pin spacing:1.27mm Dimensions of plastic enclosure:4.9mm×3.9mm Pin spacing:1.27mm Note: If the physical information is inconsistent with the ordering information, please refer to the actual product. Address：Building B4,NO.777,Jianzhu Road,Binhu District,Wuxi City,Jiangsu Province http://www.i-core. cn P.C：214072 2/ 9 VER：2021-07-A3 Wuxi I-CORE Electronics Co., Ltd. Tab: 835-12 rev:B3 Number: AiP384X-AX-QT-N027EN 2、Block Diagram And Pin Description or e 2.1、Block Diagram 2.2、Pin Configurations 1 8 VREF VFB 2 7 Vi ISENSE 3 6 OUTPUT RT/CT 4 5 GROUND i-c COMP 2.3、Pin Description Pin No. Pin Name Description 1 COMP This pin is the Error Amplifier output and is made available for loop compensation. 2 VFB This is the inverting input of the Error Amplifier. It is normally connected to the switching power supply output through a resistor divider. 3 ISENSE A voltage proportional to inductor current is connected to this input. The PWM uses this information to terminate the output switch conduction. 4 RT/CT 5 GROUND 6 OUTPUT 7 Vi 8 VREF The oscillator frequency and maximum Output duty cycle are programmed by connecting resistor RT to VREF and capacitor CT to ground. Operation to 500kHz is possible. This pin is the combined control circuitry and power ground. This output directly drives the gate of a power MOSFET. Peak currents up to 1A are sourced and sunk by this pin. This pin is the positive supply of the control IC. This is the reference output. It provides charging current for capacitor CT through resistor RT Address：Building B4,NO.777,Jianzhu Road,Binhu District,Wuxi City,Jiangsu Province http://www.i-core. cn P.C：214072 3/ 9 VER：2021-07-A3 Wuxi I-CORE Electronics Co., Ltd. Tab: 835-12 rev:B3 Number: AiP384X-AX-QT-N027EN 3、Electrical Parameter 3.1、Absolute Maximum Ratings (Tamb=25℃, unless otherwise specified) Symbol Vi IO PD Isink(EA) Vin(EA) Tamb Tstg soldering temperature TL Conditions DIP8 10s SOP8 Value 30 ±1 1 10 -0.3 to +6.3 -40 to 85 -65 to 150 245 250 Unit V A W mA V ℃ ℃ ℃ e Characteristic supply voltage (low impedance source) output current power dissipation error amplifier output sink current analog inputs operating temperature storage temperature 3.2、Electrical Characteristics (Tamb=-40~85℃, Vi=15V, RT=10kΩ, CT=3.3nF, unless otherwise specified) Symbol Conditions Min. Typ. Max. or Characteristic Reference Section reference output voltage line regulation load regulation short circuit output current total output variation output Noise voltage output Short circuit Oscillator Section VREF Io=1mA 4.90 5.00 5.10 V △VREF △VREF 12V≤Vi≤25V 1≤Io≤20mA - 2 3 20 25 mV mV △VREF/△T - - 0.2 - mV/℃ eN ISC line, load, temperature 10Hz≤f≤10KHz, Tj=25℃ - 4.82 -30 50 -100 5.18 -180 V uV mA 49 48 52 - 55 56 kHz kHz 225 250 275 kHz i-c frequency Unit fOSC Tj=25℃ Tamb=Tlow to Thigh Tj=25℃ (RT=6.2k Ω, CT=1nF) frequency change with volt △fOSC /△V Vi=12V~25V - 0.2 1 % frequency change with temp. △fOSC /△T Tamb=-40 to 85℃ - 0.5 - % oscillator voltage swing VOSC (peak to peak) - 1.6 - V discharge current (VOSC =2V) Idischg Tj=25℃, Tamb=-40 to 85℃ 7.8 8.3 8.8 mA V2 Ib AVOL BW VPIN1=2.5V VFB=5V 2V≤Vo≤4V Tj=25℃ 2.42 65 0.7 2.50 -0.1 90 1 2.58 -2 - V uA dB MHz Error AMP Section input voltage input bias current unity gain bandwidth Address：Building B4,NO.777,Jianzhu Road,Binhu District,Wuxi City,Jiangsu Province http://www.i-core. cn P.C：214072 4/ 9 VER：2021-07-A3 Wuxi I-CORE Electronics Co., Ltd. Tab: 835-12 power supply rejec.ratio output sink current output source current rev:B3 Number: AiP384X-AX-QT-N027EN PSRR 12V≤Vi≤25V 60 70 - dB IO IO VPIN2=2.7V, VPIN1=1.1V VPIN2=2.3V, VPIN1=5V VPIN2=2.3V; RL=15KΩ to ground 2 -0.5 12 -1 - mA mA 5 6.2 - V VOUT High VOUT High VOUT Low VOUT Low VPIN2=2.7V; RL=15KΩ to PIN 8 - 0.8 1.1 V GV V3 VPIN1=5V 2.85 0.9 3 1 3.15 1.1 V/V V SVR 12V≤Vi≤25V - - 70 dB Ib - - - -2 150 -10 300 uA ns output Low level VOL (Isink=20mA) (Isink=200mA) (Isource=20mA) (Isource=200mA) Vi=6V, ISINK=1mA CL=1nF CL=1nF 13 12 - 0.1 1.6 13.5 13.5 0.1 50 50 0.4 2.2 1.1 150 150 V V V V V AiP3842/4 AiP3843/5 AiP3842/4 AiP3843/5 14.5 7.8 8.5 7.0 16 8.8 10 7.6 17.5 9.4 11.5 8.2 V V V V AiP3842/3 AiP3844/5 - 95 47 - 97 48 - 100 50 0 % % % Vi=6.5V, AiP3843/5 Vi=14V, AiP3842/4 - 0.3 0.3 0.5 0.5 mA mA or e Current Sense Section Gain maximum input signal supply voltage rejection input bias current delay to output Output Section output High level VOH UVLO saturation VOLS rise time tr fall time tf Under-voltage Lockout Section VTH(ST) min operating voltage after turn-on VOPR(MIN) i-c start threshold PWM Section maximum duty cycle minimum duty cycle Total Standby current start-up current - Ist ns operating supply Ii VPIN2=VPIN3=0V 12 20 mA current zener voltage Viz Ii=25mA 30 36 V Notes: 1. Max package power dissipation limits must be respected; low duty cycle pulse techniques are used during test maintain Tj as close to Tamb as possible. 2. These parameters, although guaranteed, are not 100% tested in production. 3. Parameter measured at trip point of latch with VPIN2=0. 4. Gain defined as : A=∆VPIN1/∆VPIN3; 0≤VPIN3≤0.8V 5. Adjust Vi above the start threshold before setting at 15V. Address：Building B4,NO.777,Jianzhu Road,Binhu District,Wuxi City,Jiangsu Province http://www.i-core. cn P.C：214072 5/ 9 VER：2021-07-A3 Wuxi I-CORE Electronics Co., Ltd. Tab: 835-12 rev:B3 Number: AiP384X-AX-QT-N027EN i-c or e 4、Typical Application Circuit Address：Building B4,NO.777,Jianzhu Road,Binhu District,Wuxi City,Jiangsu Province http://www.i-core. cn P.C：214072 6/ 9 VER：2021-07-A3 Wuxi I-CORE Electronics Co., Ltd. Tab: 835-12 rev:B3 Number: AiP384X-AX-QT-N027EN 5、Package Information i-c or e 5.1、DIP8 Address：Building B4,NO.777,Jianzhu Road,Binhu District,Wuxi City,Jiangsu Province http://www.i-core. cn P.C：214072 7/ 9 VER：2021-07-A3 Wuxi I-CORE Electronics Co., Ltd. Tab: 835-12 rev:B3 Number: AiP384X-AX-QT-N027EN i-c or e 5.2、SOP8 Address：Building B4,NO.777,Jianzhu Road,Binhu District,Wuxi City,Jiangsu Province http://www.i-core. cn P.C：214072 8/ 9 VER：2021-07-A3 Wuxi I-CORE Electronics Co., Ltd. Tab: 835-12 rev:B3 Number: AiP384X-AX-QT-N027EN 6、Statements And Notes： 6.1、The name and content of Hazardous substances or Elements in the product Hazardous substances or Elements Lead and lead compou nds Mercur y and mercur y compo unds Cadm ium and cadmi um comp ounds Lead frame ○ ○ ○ ○ ○ Plastic resin ○ ○ ○ ○ Chip ○ ○ ○ ○ The lead ○ ○ ○ Plastic sheet installed ○ ○ ○ Polybro minate d biphen yl ethers Dibutyl phthala te Butylbe nzyl phthala te Di-2-et hylhex yl phthala te Diisobu tyl phthala te ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ Polybro minated biphenyl s e Part name Hexaval ent chromiu m compoun ds ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ or ○：Indicates that the content of hazardous substances or elements in the detection limit explanat ion of the following the SJ/T11363-2006 standard。 ×：Indicates that the content of hazardous substances or elements exceeding the SJ/T11363-2006 Standard limit requirements。 6.2、Notion: Recommended carefully reading this information before the use of this product； The information in this document are subject to change without notice； i-c This information is using to the reference only, the company is not responsible for any loss； The company is not responsible for the any infringement of the third party patents or other rights of the responsibility. Address：Building B4,NO.777,Jianzhu Road,Binhu District,Wuxi City,Jiangsu Province http://www.i-core. cn P.C：214072 9/ 9 VER：2021-07-A3