AAT3177IWP-T1 Advanced Analog Technology, Inc., AAT3177IWP-T1 Datasheet
AAT3177IWP-T1
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AAT3177IWP-T1 Summary of contents
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ChargePump TM General Description The AAT3177 is a high output current, high efficiency, low noise, low profile charge pump DC/DC converter. The device is ideal for multi-functional LED photo-flash applications where solution cost, size, and efficiency are critical. The AAT3177 ...
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ChargePump ChargePump TM TM Pin Descriptions Pin # Symbol Function Input power supply pin. Connect Pin 1 directly to Pin 12 and then to input supply voltage. Con- 1 VIN nect a 4.7μF or larger ceramic capacitor to ground. 2 ...
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ChargePump ChargePump TM TM Absolute Maximum Ratings T = 25°C, unless otherwise noted. A Symbol Description V Input Voltage GND Voltage EN V Maximum EN to Input Voltage EN(MAX) I Maximum Output Current OUT T Operating ...
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ChargePump ChargePump TM TM Electrical Characteristics C = 4.7μ 2.2μ 1.0μ OUT 3.6V. IN Symbol Description Power Supply V Input Voltage Range IN I Operating Current CC I ...
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ChargePump ChargePump TM TM Typical Characteristics V = 3.6V 4.7μ 2.2μ OUT Efficiency vs. Supply Voltage 100 300mA LED 150mA LED ...
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ChargePump ChargePump TM TM Typical Characteristics V = 3.6V 4.7μ 2.2μ OUT Operating Characteristic (V = 3.3V; 1.5X Mode LED V IN (100mV/div) V OUT (200mV/div) V SINK (200mV/div) Time (2µs/div) ...
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ChargePump ChargePump TM TM Typical Characteristics V = 3.6V 4.7μ 2.2μ OUT EN/SET High Threshold Voltage vs. Supply Voltage and Temperature 1.0 -40°C 0.9 0.8 85°C 0.7 25°C 0.6 0.5 0.4 2.7 2.9 ...
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ChargePump ChargePump TM TM Functional Block Diagram VIN EN/SET Functional Description The AAT3177 is a high efficiency, low noise, dual stage tri-mode 1X/1.5X/2X charge pump device intended for photo-flash LED applications. The device requires only four external components: two ceramic ...
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ChargePump TM EN/SET Data Reg Output Current Flash Auto-Timer Data (% MAX 1 100 63.1 6 56.2 7 50.1 8 44.7 9 39.8 10 35.5 11 ...
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ChargePump TM Real-Time Control of the CT Pin To achieve flash and torch mode control, the auto-timer can be enabled or disabled in real-time. This can be done by connecting a microcontroller or microprocessor GPIO port to the CT pin. ...
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ChargePump TM Next, choose R based on the desired flash level LED 2 current: R · 600mA · 187kΩ · I (flash) - 600mA · 187kΩ LED The current and resistance values used in ...
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ChargePump TM Capacitor Selection Careful selection of the four external capacitors and C is important because they will affect turn-on 2 OUT time, output ripple, and transient performance. Optimum performance will be obtained when low equivalent series ...
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ChargePump TM Figure 4: Example PCB Layout. 3177.2008.06.1.0 High Current, High Efficiency Charge Pump with Auto-Timer Evaluation Board User Interface The user interface for the AAT3177 evaluation board is provided by 3 buttons and a couple of connection termi- nals. ...
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ChargePump ChargePump TM TM Button(s) Pushed Description 1, 2 DATA Increments through the 16 data settings. Hold down to auto-cycle. MOVIE+DATA Decrement the data setting. Hold down to auto-cycle. Generate a fl ash pulse. Current level determined by the DATA ...
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ChargePump ChargePump TM TM Evaluation Board Schematic DC+ DC- J1 VIN C4 4.7μF OSRAM OPTO Ceramos Flash LED LW C9SP Figure 7: AAT3177 Evaluation Board Schematic. Evaluation Board Component Listing Component Part Number U1 AAT3177 U2 PIC12F675 D1 LW C9SP ...
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... Bottom View 0.05 ± 0.05 Side View PRODUCT DATASHEET PRODUCT DATASHEET AAT3177 AAT3177 2 AAT3177IWP-T1 0.43 ± 0.05 0.1 REF C0.3 Pin 1 Indicator (optional) Detail "A" 3177.2008.06.1.0 3177.2008.06.1.0 ...