SC644
Product inactive. Information on this page is for reference only.
The SC644 is a high efficiency charge pump LED driver using Semtech’s proprietary charge pump technology. Performance is optimized for use in single cell Li-ion battery applications.
Features
- Input supply voltage range — 2.9V to 5.5V
- Very high efficiency charge pump driver system with three modes — 1x, 1.5x, and 2x
- Six programmable current sinks with 29 increments from 0mA to 25mA
- One programmable 100mA low-noise LDO regulator
- Three programmable 150mA low-noise LDO regulators
- Programmable driver configurations for main and sub-display backlight
- Fade-in/fade-out feature for main and sub display backlight
- SemPulse® single wire interface
- Backlight current accuracy — ±1.5% typical
- Backlight current matching — ±0.5% typical
- Automatic sleep mode with LEDs off
- Shutdown current — 0.1μA typical
- Ultra-thin package — 3 x 3 x 0.6 (mm)
- Fully WEEE and RoHS compliant
- Cellular phones, smart phones, and PDAs
- LCD display modules
- Portable media players
- Digital cameras and GPS units
- Display backlighting and LED indicators
Applications
Packaging
- MLPQ-UT-20
Order Codes
- SC644ULTRT: Lead-Free, WEEE and RoHS Compliant, 3000pcs Tape and Reel Only
Pb(Lead)-Free/RoHS-Green Info
Base Part Number (1)
SC644
Part Description
LIGHT MANAGEMENT UNIT WITH 4 LDOS AND SEMPULSE INTERFACE
# of leads
20
Package Type
MLPQ-UT
Pb-Free (2)
YES
Reflow Temp °C (3)
260
Lead or Ball Finish
MATTE Sn
MSL Rating
1
REACH SVH C(233) EC1907/2006 (18)
YES Download Report
JIG 101 A & B (12)
YES
YES Download Report
RoHS 2/3 Amend 2015/863 (7)
YES Download Report
WEEE 2012/19/EU (19)
YES
China RoHS 2 GB/T 26572-2011
YES Download Report
Halogen Free / Low IEC 61249-2-21/JS709C (20)
YES Download Report
Proposition 65 (21)
YES Download Report
Packaging Material 94/62/EC (17)
YES Download Report
RoHS Compliant by Exception (8)
NO
Whisker Testing (10)
Thermal Cycling Whisker Test
(-40°C to +85°C / 4000 cycles)
(-40°C to +85°C / 4000 cycles)
YES
Ambient Temperature Storage, Whisker Test
(50°C, 4000 Hrs)
(50°C, 4000 Hrs)
YES
60°C/90%RH 4000 Hrs, Whisker Test
YES
Declarations and Reports
IPC-1752-2
Datasheets & Documentation
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Distributor/Catalog Supplier Inventory
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Resources
