AW9364DNR

AW9364 Feb 2018 V2.3 ti a l 4-Channel 1-wire Dimming LED Driver with Ultra Low Dropout Current Source FEATURES DESCRITION           The AW9364 is a 4-channel ultra low dropout constantsource parallel LED driver. With the proprietary Q-MirrorTM technique, the AW9364 uses an internal resistor to set the bias current for four LEDs, which are matched to ±1%. The AW9364 incorporates a single wire interface to program the output current at 16 continuous steps. The AW9364 has an internal deglitch circuit for filtering the noise of the EN input. The AW9364 requires only a 40mV dropout voltage at a 20mA load. The feature makes AW9364 ideal for battery-operated systems, such as personal digital assistants. fi d e n Ultra low dropout: 50mV/20mA(typical) Support up to 4 LEDs LED sink current up to 20mA ±1% LED current matching(typical) En Pin Deglitch circuit Thermal shutdown protection 16-step brightness control ESD protection: ±8kV(HBM) No EMI and switch noise Packages: DFN2x2-8L The AW9364 is available in DFN2x2-8L packages and is specified over the -40℃ to +85℃ temperature range. n APPLICATIONS C o  Mobile phone  Digital camera  PDA MP3 ic PIN CONFIGURATION AND MARKING AW9364DNR TOP VIEW （DFN2x2-8L） 8 LED1 EN 2 7 LED2 VIN 3 6 LED3 AGND 4 5 LED4 in PGND 1 AL64 - AW9364DNR XY – Production Tracing Code a w AW9364DNR MARKING （DFN2x2-8L） Figure 1 Pin Configuration of AW9364 www.awinic.com.cn 1 Copyright © 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW9364 Feb 2018 V2.3 TYPICAL APPLICATION CIRCUITS l 2.8V to 5.5V ti a VIN 1uF PGND AW9364 Pulse Input n LED1 LED2 EN 2 1 e LED3 n≤16 LED4 fi d AGND Figure 2 AW9364 Typical Application VIN C 1uF o n 2.8V to 5.5V PGND AW9364 ic LED1 Pulse Input 2 EN LED3 n≤16 LED4 Floating AGND Figure 3 3-LED Application a w in 1 LED2 www.awinic.com.cn 2 Copyright © 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW9364 Feb 2018 V2.3 2.8V to 5.5V VIN l 1uF ti a PGND AW9364 LED1 1 2 EN n≤16 LED3 Floating LED4 Floating fi d Figure 4 2-LED Application e AGND n Pulse Input LED2 n 2.8V to 5.5V VIN o 1uF C PGND Pulse Input EN n≤16 ic 2 LED1 LED2 Floating LED3 Floating LED4 Floating AGND Figure 5 1-LED Application a w in 1 AW9364 www.awinic.com.cn 3 Copyright © 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW9364 Feb 2018 V2.3 ORDERING INFORMATION Temperature Range Package Marking Moisture sensitivity level Environmental Information Packing Type AW9364DNR -40℃～85℃ DFN2x2-8L AL64 MSL3 RoHS+HF 3000 units/Tape and Reel ti a AW9364 n Shipping Package Type Shipping fi d R :Tape & Reel o Supply Voltage VDD n ABSOLUTE MAXIMUM RATINGS(1) Parameter e Package Type DN:DFN2x2-8L l Order Number C Input Voltage EN Range -0.3V to 6 V -0.3V to 6 V 0.44 W Maximum Junction Temperature 125℃ Storage Temperature Range -65℃ to 150℃ ic Power Dissipation, ( PD@ TA=25℃） Lead Temperature (Soldering 10 Seconds) 260℃ Package Thermal Resistance θJA 76℃/W in ESD Rating(2) Human Body Model ±8000 V Latch-up current maximum rating per JEDEC standard +IT:450mA -IT:-450mA a w Latch-up(3) www.awinic.com.cn 4 Copyright © 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW9364 Feb 2018 V2.3 ELECTRICAL CHARACTERISTICS Test Condition: TA=25℃, VIN=3.6V, CIN = 1μF (unless otherwise specified) Supply Voltage VIN Output Current ILED Current Matching LED Dropout Voltage VDO Condition Min Typ. All LEDs 100% setting 16.5 All LEDs 100% setting -5 20 ILED=20mA 50 ILED=0 330 Shutdown Current ISD VEN=0V，VIN=5.5V 0.1 Startup Time TON Enable High Level Input Voltage VIH Enable Low Level Input Voltage VIL EN Low Time for Dimming TLO EN High Time for Dimming THI 23.5 mA 5 % 170 mV μA 1 e fi d VEN=0V 0.5 μA μs 1.5 TP V 0.3 V 500 μs μs 0.5 800 2500 μs 145 ℃ 20 ℃ o Hysteresis Temperature V 20 n Thermal Shutdown Temperature 5.5 n IQ TOFF Units 2.8 Quiescent Current Shutdown Delay Time Max l Symbol ti a Parameter C NOTE1: Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. ic NOTE2: The human body model is a 100pF capacitor discharged through a 1.5kΩ resistor into each pin. a w in NOTE3: Test condition: JEDEC STANDARD NO.78A FEBRUARY 2006. www.awinic.com.cn 5 Copyright © 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW9364 Feb 2018 V2.3 PIN DEFINITION Symbol Description 4 AGND Analog Ground 1 PGND Power Ground 3 VIN Supply Input 2 EN Enable Pin. Active high, with an internal 150kΩ pull-down resistor. 5 LED4 LED4 Pin, Connect to the LED cathode, leave it to connect GND or open if unused. 6 LED3 LED3 Pin, Connect to the LED cathode, leave it to connect GND or open if unused. 7 LED2 LED2 Pin, Connect to the LED cathode, leave it to connect GND or open if unused. 8 LED1 LED1 Pin, Connect to the LED cathode, leave it to connect GND or open if unused. 9 GND Exposed pad, should be connected to gnd. a w in ic C o n fi d e n ti a l PIN www.awinic.com.cn 6 Copyright © 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW9364 Feb 2018 V2.3 TYPICAL OPERATION CHARACTERISTICS Test condition：TA=25℃，VIN=3.6V, CIN=1μF unless otherwise specified. Efficiency vs Supply Voltage 22 20 70 18 60 50 40 30 20 16 14 12 10 8 LED VF=3.15V/20mA 10 4 0 3.6 3.8 4.0 Supply Voltage (V) 4.2 3.2 4.4 LED Current vs Temperature 25 23 20 LED Current (mA) 22 21 15 n 20 19 10 o 18 5 17 -40 -25 -10 5 20 35 50 Temperature (℃) C 16 65 80 0 95 Shutdown Time vs Supply Voltage 400 300 1.2 VIN VIN in 700 0.6 0.2 0.4 0.8 LED Dropout Voltage(V) Line Transient Response ic 800 w Shutdown Time (uS) 900 500 4.0 LED Current vs LED Dropout Voltage 24 600 3.4 3.8 3.6 Supply Voltage (V) e 3.4 fi d 3.2 LED Current (mA) LED VF=3.15V/20mA 6 n LED Current (mA) 80 ti a 90 Efficiency (%) 24 l LED Current vs Supply Voltage 100 Current 200 3.0 3.2 3.4 3.6 3.8 Supply Voltage (V) 4.2 4.4 Time (100us/Div) a 100 2.8 www.awinic.com.cn 7 Copyright © 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW9364 Feb 2018 V2.3 BLOCK DIAGRAM VIN l LED1 LED2 LED3 LED4 ti a Bandgap Q-Mirror n OTP EN DAC fi d Deglitch e Current Source PGND AGND EN 1 15/16 3 14/16 5 4 2.5ms