ADDtek AMC7123DN Flash light led driver Datasheet

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.
„
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„
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„
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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.
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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.
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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
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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
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.
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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
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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
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
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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.
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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 © 2006 ADDtek Corp.
8
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