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SGM37603 Datasheet Preview

SGM37603 Datasheet

Highly Efficient Triple-String White LED Driver

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SGM37603
Highly Efficient Triple-String White LED Driver
GENERAL DESCRIPTION
The SGM37603 is an ultra-compact, highly efficient,
triple-string white-LED driver designed for LCD display
backlighting. The device operates over the 3V to 24V
input voltage, it can power up to 8 series LEDs at up to
25mA per string. An adaptive current regulation method
allows for different LED voltages in each string while
maintaining current regulation.
The LED current is adjusted via an I2C interface or
through a logic level PWM input. The SGM37603 is
available in Green WLCSP-1.78×1.36-12B and
TDFN-3×3-12L packages. It operates over the -40to
+85temperature range.
APPLICATIONS
Power Source for Smart Phone and Tablet Backlighting
FEATURES
11% Matched Current Sinks across Process,
Voltage and Temperature at ILED = 12.21μA
1% Matched Current Sinks across Process,
Voltage and Temperature at ILED = 25mA
11% Current Sink Accuracy across Process,
Voltage and Temperature at ILED = 12.21μA
3% Current Sink Accuracy across Process,
Voltage and Temperature at ILED = 25mA
11-Bit Dimming Resolution
Up to 90% Solution Efficiency
Drive from 1 to 3 Parallel LED Strings at Up to 29.5V
PWM Dimming Input
I2C Programmable
Hybrid PWM + Current Dimming for Higher LED
Driver Optical Efficiency
1.2MHz Switching Frequency
Low EMI by Conducting Ringing Cancelling
Over-Voltage Protection
Over-Current Protection
Thermal Shutdown Protection
TYPICAL APPLICATION
VIN (3V to 24V)
VIN
L1
VLF504012MT-100M
SW
C1
22μF
10μH
R3
10Ω
U1
SW
VIO
IN
R1
10kΩ
R2
10kΩ
GND
CIN
2.2μF
D1
OUT
SGM37603
SDA
SDA
SDA
LED1
SCL
PWM
HWEN
SCL
PWM
HWEN
SCL
PWM
HWEN
LED2
LED3
GND
VOUT up to 28V
COUT
1μF
Figure 1. Typical Application
SG Micro Corp
www.sg-micro.com
JANUARY 2019 – REV. A.1




SG Micro

SGM37603 Datasheet Preview

SGM37603 Datasheet

Highly Efficient Triple-String White LED Driver

No Preview Available !

SGM37603
Highly Efficient Triple-String White LED Driver
PACKAGE/ORDERING INFORMATION
MODEL
SGM37603
PACKAGE
DESCRIPTION
WLCSP-1.78×1.36-12B
TDFN-3×3-12L
SPECIFIED
TEMPERATURE
RANGE
-40to +85
-40to +85
ORDERING
NUMBER
SGM37603YG/TR
SGM37603YTDF12G/TR
PACKAGE
MARKING
XXXXX
37603
SGM
37603DF
XXXXX
PACKING
OPTION
Tape and Reel, 3000
Tape and Reel, 4000
MARKING INFORMATION
NOTE: XXXXX = Date Code and Vendor Code.
WLCSP-1.78×1.36-12B
XXXXX
Vendor Code
Date Code - Week
Date Code - Year
TDFN-3×3-12L
XXXXX
Vendor Code
Date Code - Week
Date Code - Year
Green (RoHS & HSF): SG Micro Corp defines "Green" to mean Pb-Free (RoHS compatible) and free of halogen substances. If
you have additional comments or questions, please contact your SGMICRO representative directly.
ABSOLUTE MAXIMUM RATINGS
IN .................................................................... -0.3V to 28.6V
OUT ................................................................... -0.3V to 40V
SW ..................................................................... -0.3V to 40V
LED1, LED2, LED3 ............................................ -0.3V to 17V
HWEN, PWM, SDA, SCL..................................... -0.3V to 6V
Package Thermal Resistance
WLCSP-1.78×1.36-12B, θJA ...................................... 82/W
TDFN-3×3-12L, θJA .................................................... 50/W
Junction Temperature.................................................+150
Storage Temperature Range ........................ -65to +150
Lead Temperature (Soldering, 10s) ............................+260
ESD Susceptibility
HBM............................................................................. 2000V
MM................................................................................. 200V
CDM .............................................................................. 500V
RECOMMENDED OPERATING CONDITIONS
IN ............................................................................3V to 24V
OUT .....................................................................0V to 30.5V
SW .......................................................................0V to 30.5V
LED1, LED2, LED3.................................................0V to 12V
HWEN, PWM, SDA, SCL.......................................0V to 5.5V
Operating Temperature Range ...................... -40to +85
OVERSTRESS CAUTION
Stresses beyond those listed in Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to
absolute maximum rating conditions for extended periods
may affect reliability. Functional operation of the device at any
conditions beyond those indicated in the Recommended
Operating Conditions section is not implied.
ESD SENSITIVITY CAUTION
This integrated circuit can be damaged by ESD if you don’t
pay attention to ESD protection. SGMICRO recommends that
all integrated circuits be handled with appropriate precautions.
Failure to observe proper handling and installation procedures
can cause damage. ESD damage can range from subtle
performance degradation to complete device failure. Precision
integrated circuits may be more susceptible to damage
because very small parametric changes could cause the
device not to meet its published specifications.
DISCLAIMER
SG Micro Corp reserves the right to make any change in
circuit design, or specifications without prior notice.
SG Micro Corp
www.sg-micro.com
JANUARY 2019
2



Part Number SGM37603
Description Highly Efficient Triple-String White LED Driver
Maker SG Micro
Total Page 3 Pages
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SGM37603 Datasheet PDF





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