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AMC7123/4
www.addmtek.com DESCRIPTION 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. OPTIONS
Device Name AMC7123DN AMC7124DN Maximum LED Minimum LED LED Drive Current Drive Current Channel 120mA 120mA 20mA 20mA 1 3
FLASH LIGHT LED DRIVER
FEATURES 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. PACKAGE PIN OUT
ENH 1 ENL 2 VDD 3
8 GND 7 GND 6 LED 5 LED
ENH 1 ENL 2 VDD 3 GND 4
8 LED1 7 GND 6 LED2 5 LED3
APPLICATIONS
Mobile Phone, Smart Phone Camera LED Flash Light. Digital Still Camera LED Flash Light.
GND 4
AMC7123DN
AMC7124DN
TYPICAL APPLICATION
VDD VDD
VDD VDD ENH ENL ENH ENL GND
AMC7123
ENH ENL
ENH ENL GND
AMC7124
LED1 LED2 LED3 GND
LED LED GND
ORDER INFORMATION TA (OC) 0 to 70 DN Plastic MSOP-8 8-pin AMC7123DNF (Lead Free) AMC7124DNF (Lead Free)
AMC7123DN AMC7124DN
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 (c) 2006 ADDtek Corp. 1 DD029_B -- JULY 2006
AMC7123/4
ABSOLUTE MAXIMUM RATINGS Input Voltage, VDD Output Voltage, VLEDn Voltage at all other pins Maximum Junction Temperature, TJ Storage Temperature Range Lead Temperature (soldering, 10 seconds)
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. (Note)
-0.3V to 7V -0.3V to 7V -0.3V to 5.5V 150 OC -40 OC to 150 OC 260 OC
POWER DISSIPATION TABLE Package DN DNF
Note: Junction Temperature Calculation: TJ = TA + (PD x JA). PD: Power Dissipation, TA: Ambient temperature, JA: Thermal Resistance-Junction to Ambient The JA numbers are guidelines for the thermal performance of the device/PC-board system. All of the above assume no ambient airflow.
TA=70 OC Derating factor (mW/OC ) TA25 OC JA O TA25 C Power rating (mW) Power rating (mW) ( C/W )
O
TA= 85 OC Power rating (mW) 361 361
180 180
5.56 5.56
695 695
444 444
Copyright (c) 2006 ADDtek Corp.
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AMC7123/4
BLOCK DIAGRAM
VDD ENL ENH
VDDI
AMC7124
Control Logic
Driving Stage Driving Stage
LED1 LED2 LED3 GND
Digital to Analog
Driving Stage
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. ENH 0 0 1 1 Power supply. Ground ENL 0 1 0 1 LED, LED1, LED2, LED3 Shut-Down 1/6 x Imax 1/2 x Imax Imax
ENL, ENH
VDD GND
Copyright (c) 2006 ADDtek Corp.
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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 ELECTRICAL CHARACTERISTICS VDD=3.7V, Ta=25C, No Load, Input: VIH=3.3V, VIL=GND. (Unless otherwise noted) Parameter "Low" Input Voltage "High" Input Voltage "Low" Input Current "High" Input Current LED Maximum Sink Current LED Half Sink Current LED Low sink current LED Dropout Voltage Supply Current Consumption Shut-Down Current Symbol VIL VIH IIL IIH I max I half I min VLEDL IDD IDDSD ENH=ENL="1", All outputs ENH="1", ENL="0" ENH="0", ENL="1" ILEDn= 120mA, Note 1 2 -5.0 -5.0 114 45%* Imax 9%* Imax 120 200 0.1 120 +5.0 +5.0 126 55%* Imax 25%* Imax Condition Min Typ Max 0.8 Unit V V A A mA mA mA mV uA uA VDD LEDn ENL, ENH Apply Pin Max 6 130 +85 Unit V mA
Note 1: LED dropout voltage: 90% x ILEDn @ VLEDn=200mV
Copyright (c) 2006 ADDtek Corp.
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AMC7123/4
CHARACTERIZATION CURVES
SHUT-DOWN CURRENT vs. SUPPLY VOLTAGE
0.50 0.45 0.40
QUIESCENT CURRENT vs. SUPPLY VOLTAGE
0.17 0.16 0.15 IQ (mA) 0.14 0.13 0.12 0.11 0.10
IQ (uA)
0.35 0.30 0.25 0.20 0.15 2 2.5 3 VIN (V) 3.5 4
2
2.5
3 VIN (V)
3.5
4
SHUT-DOWN CURRENT vs. TEMP.
12
QUIESCENT CURRENT vs. TEMP
0.22 0.2 0.18 IQ (mA) 0.16 0.14 0.12 0.1
10
8
IQ (uA)
6
4
2
0 20 30 40 50 60 TEMP (C) 70 80 90 100
20
30
40
50
60 TEMP (C)
70
80
90
100
LED CURRENT vs.LED_DROPOUT VOLTAGE
140 120 100
ILED (mA)
80 60 40 20 0 0.01 0.1 LED_DROPOUT (V) 1 10
Copyright (c) 2006 ADDtek Corp.
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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 VDD ENH ENL LED LED GND ENH ENL GND
VDD
AMC7123
ENH ENL
ENH ENL GND
AMC7124
LED1 LED2 LED3 GND
ENH 0 0 1 1
ENL 0 1 0 1
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 VDD ENH ENL LED1 LED2 LED3 GND ENH ENL GND
VDD
AMC7124
ENH ENL
ENH ENL GND
AMC7124
LED1 LED2 LED3 GND
Copyright (c) 2006 ADDtek Corp.
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AMC7123/4
PACKAGE
8-Pin Plastic MSOP (DN)
A J
INCHES MIN A
P
MILLIMETERS MAX MIN 2.90 2.90 TYP 3.00 3.00 1.02 0.30 0.40 0.53 0.65 0.15 0.006 8 0.00 0 4.70 4.90 0.15 8 5.10 0.80 MAX 3.10 3.10 1.12
TYP
0.114 0.118 0.122 0.114 0.118 0.122 0.040 0.044 0.012 0.016 0.021 0.031 0.026 0.006 0.000 0 -
B C D F
F M G D
G J K M P
C K
0.185 0.193 0.201
Copyright (c) 2006 ADDtek Corp.
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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 (c) 2006 ADDtek Corp. 8 DD029_B -- JULY 2006

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