AMC7123/4 FLASH LIGHT LED DRIVER www.addmtek.com DESCRIPTION FEATURES The AMC7123/4 is member of ADDM North Star White/Blue LED driver family. No external component is required. Especially good for use flashlight LED driver. The special circuit design provides over 90% efficiency in low noise. The AMC7123/4 is Integrated with 2 control pins for LEDs driving current control. Target end applications are camera flash light LCD driver for mobile phone, smart phone, PDA, Digital Still Camera, etc. No external component required. Programmable output current control by ENL, ENH. 120mA LED driving capability. Output short / open circuit protection. 1 channel, 3 channels available in MSOP-8 package. High efficiency. Thermal Shutdown protection. Supply voltage range 2.7V ~ 6V 0.1uA Shut-Down current Advanced Bi-CMOS process. OPTIONS Device Name PACKAGE PIN OUT Maximum LED Minimum LED LED Drive Current Drive Current Channel AMC7123DN 120mA 20mA 1 AMC7124DN 120mA 20mA 3 APPLICATIONS Mobile Phone, Smart Phone Camera LED Flash Light. ENH 1 8 GND ENH 1 8 LED1 ENL 2 7 GND ENL 2 7 GND VDD 3 6 LED VDD 3 6 LED2 GND 4 5 LED GND 4 5 LED3 AMC7123DN AMC7124DN Digital Still Camera LED Flash Light. TYPICAL APPLICATION VDD VDD ENH ENL ENL GND VDD ENH ENH ENL ENL LED LED GND GND AMC7124 ENH AMC7123 VDD LED1 LED2 LED3 GND ORDER INFORMATION TA (OC) 0 to 70 DN Plastic MSOP-8 8-pin AMC7123DN AMC7123DNF (Lead Free) AMC7124DN AMC7124DNF (Lead Free) Note： 1. All surface-mount packages are available in Tape & Reel. Append the letter “T” to part number (i.e. AMC7123/24). 2. The letter “F” is marked for Lead Free process. Copyright © 2006 ADDtek Corp. 1 DD029_B -- JULY 2006 AMC7123/4 ABSOLUTE MAXIMUM RATINGS (Note) Input Voltage, VDD -0.3V to 7V Output Voltage, VLEDn -0.3V to 7V Voltage at all other pins -0.3V to 5.5V Maximum Junction Temperature, TJ 150 OC Storage Temperature Range -40 OC to 150 OC Lead Temperature (soldering, 10 seconds) 260 OC Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into, negative out of the specified terminal. POWER DISSIPATION TABLE Package TA=70 OC Derating factor (mW/OC ) TA≦25 OC θJA O TA≧25 C Power rating (mW) Power rating (mW) ( C/W ) O TA= 85 OC Power rating (mW) DN 180 5.56 695 444 361 DNF 180 5.56 695 444 361 Note: Junction Temperature Calculation: TJ = TA + (PD x θJA). PD: Power Dissipation, TA: Ambient temperature, θJA: Thermal Resistance-Junction to Ambient The θJA numbers are guidelines for the thermal performance of the device/PC-board system. All of the above assume no ambient airflow. Copyright © 2006 ADDtek Corp. 2 DD029_B -- JULY 2006 AMC7123/4 BLOCK DIAGRAM VDD VDDI ENL Control Logic ENH AMC7124 Digital to Analog Driving Stage LED1 Driving Stage LED2 Driving Stage LED3 GND PIN DESCRIPTION Pin Name LED. LED1~3 Pin Function Output pins; connect to LED’s cathode. This pin combined enable and output sink current programming function. ENL, ENH ENH 0 0 1 1 VDD Power supply. GND Ground Copyright © 2006 ADDtek Corp. ENL 0 1 0 1 LED, LED1, LED2, LED3 Shut-Down 1/6 x Imax 1/2 x Imax Imax 3 DD029_B -- JULY 2006 AMC7123/4 RECOMMENDED OPERATING CONDITIONS Parameter Symbol Min Typ Supply Voltage VDD 2.7 Output Sink current ILED Operating free-air temperature range Ta -40 Max 6 130 +85 Unit V mA ℃ ELECTRICAL CHARACTERISTICS VDD=3.7V, Ta=25°C, No Load, Input: VIH=3.3V, VIL=GND. (Unless otherwise noted) Parameter Symbol Condition Min Typ Max Unit 0.8 V “Low” Input Voltage VIL “High” Input Voltage VIH 2 “Low” Input Current IIL -5.0 +5.0 µA “High” Input Current IIH -5.0 +5.0 µA LED Maximum Sink Current I max ENH=ENL=”1”, All outputs 126 mA LED Half Sink Current I half ENH=”1”, ENL=”0” 45%* Imax 55%* Imax mA LED Low sink current I min ENH=”0”, ENL=”1” 9%* Imax 25%* Imax mA LED Dropout Voltage VLEDL ILEDn= 120mA, Note 1 Supply Current Consumption Shut-Down Current 114 V 120 120 mV IDD 200 uA IDDSD 0.1 uA Apply Pin ENL, ENH LEDn VDD Note 1: LED dropout voltage: 90% x ILEDn @ VLEDn=200mV Copyright © 2006 ADDtek Corp. 4 DD029_B -- JULY 2006 AMC7123/4 CHARACTERIZATION CURVES QUIESCENT CURRENT vs. SUPPLY VOLTAGE 0.17 0.45 0.16 0.40 0.15 0.35 0.14 IQ (mA) IQ (uA) SHUT-DOWN CURRENT vs. SUPPLY VOLTAGE 0.50 0.30 0.13 0.25 0.12 0.20 0.11 0.15 0.10 2 2.5 3 3.5 4 2 2.5 3 VIN (V) 4 QUIESCENT CURRENT vs. TEMP SHUT-DOWN CURRENT vs. TEMP. 0.22 10 0.2 8 0.18 IQ (mA) 12 IQ (uA) 3.5 VIN (V) 6 0.16 4 0.14 2 0.12 0.1 0 20 30 40 50 60 TEMP (ºC) 70 80 90 20 100 30 40 50 60 70 80 90 100 TEMP (ºC) LED CURRENT vs.LED_DROPOUT VOLTAGE 140 120 ILED (mA) 100 80 60 40 20 0 0.01 0.1 LED_DROPOUT (V) Copyright © 2006 ADDtek Corp. 1 10 5 DD029_B -- JULY 2006 AMC7123/4 APPLICATION INFORMATION ENH 0 0 1 1 ENL 0 1 0 1 Typical Flashlight Current Shut-Down 20mA 60mA 120mA ENH 0 0 1 1 ENL 0 1 0 1 Typical Flashlight Current Shut-Down 20mA 60mA 120mA VDD VDD ENH ENL ENL GND VDD ENH ENH ENL ENL LED LED GND AMC7124 ENH AMC7123 VDD GND ENH 0 0 1 1 ENL 0 1 0 1 LED1 LED2 LED3 GND Typical Flashlight Current Shut-Down 40mA 120mA 240mA ENH 0 0 1 1 ENL 0 1 0 1 Typical Flashlight Current Shut-Down 60mA 180mA 360mA VDD VDD ENH ENL ENL GND VDD LED1 LED2 ENH ENL ENL GND LED3 LED1 LED2 LED3 GND GND Copyright © 2006 ADDtek Corp. ENH AMC7124 ENH AMC7124 VDD 6 DD029_B -- JULY 2006 AMC7123/4 PACKAGE 8-Pin Plastic MSOP (DN) A J INCHES MIN P F MAX MIN TYP MAX A 0.114 0.118 0.122 2.90 3.00 3.10 B 0.114 0.118 0.122 2.90 3.00 3.10 C 0.040 0.044 1.02 1.12 D 0.012 0.30 F 0.016 0.021 0.031 G - J TYP MILLIMETERS 0.026 0.40 0.53 0.80 - - 0.65 - 0.006 0.15 M G D K 0.000 - 0.006 0.00 - 0.15 M 0º - 8º 0º - 8º 4.70 4.90 5.10 P 0.185 0.193 0.201 C K Copyright © 2006 ADDtek Corp. 7 DD029_B -- JULY 2006 AMC7123/4 IMPORTANT NOTICE ADDtek reserves the right to make changes to its products or to discontinue any integrated circuit product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current. A few applications using integrated circuit products may involve potential risks of death, personal injury, or severe property or environmental damage. ADDtek integrated circuit products are not designed, intended, authorized, or warranted to be suitable for use in life-support applications, devices or systems or other critical applications. Use of ADDtek products in such applications is understood to be fully at the risk of the customer. In order to minimize risks associated with the customer’s applications, the customer should provide adequate design and operating safeguards. ADDtek assumes to no liability to customer product design or application support. ADDtek warrants the performance of its products to the specifications applicable at the time of sale. ADDtek Corp. 9F, No. 20, Sec. 3, Bade Rd., Taipei, Taiwan, 105 TEL: 2-25700299 FAX: 2-25700196 Copyright © 2006 ADDtek Corp. 8 DD029_B -- JULY 2006