Texas Instruments LM2794BL
- Part Number:
- LM2794BL
- Manufacturer:
- Texas Instruments
- Ventron No:
- 3258901-LM2794BL
- Description:
- IC LED DRIVER RGLTR DIM 14DSBGA
- ECAD Model:
-
- Datasheet:
- LM2794BL
Description
The LM2794/95 is a fractional CMOS charge-pump that provides four regulated current sources. It accepts an input voltage range from 2.7V to 5.5V and maintains a constant current determined by an external sense resistor.
Features
Regulated current sources with ±0.5% matching between any two outputs
High efficiency 3/2 boost function
Drives one, two, three, or four white LEDs
2.7V to 5.5V Input Voltage
Up to 80mA output current
Analog brightness control
Active-low or high shutdown input (94/95)
Very small solution size and no inductor
2.3μA (typ.) shutdown current
325kHz switching frequency (min.)
Constant Frequency generates predictable noise spectrum
Standard Micro SMD-14 package: 2.08mm X 2.403mm X 0.845mm High
Thin Micro SMD-14 package: 2.08mm X 2.403mm X 0.600mm High
Applications
White LED Display Backlights
White LED Keypad Backlights
1-Cell Li-Ion battery-operated equipment including PDAs, hand-held PCs, cellular phones
The LM2794/95 is a fractional CMOS charge-pump that provides four regulated current sources. It accepts an input voltage range from 2.7V to 5.5V and maintains a constant current determined by an external sense resistor.
Features
Regulated current sources with ±0.5% matching between any two outputs
High efficiency 3/2 boost function
Drives one, two, three, or four white LEDs
2.7V to 5.5V Input Voltage
Up to 80mA output current
Analog brightness control
Active-low or high shutdown input (94/95)
Very small solution size and no inductor
2.3μA (typ.) shutdown current
325kHz switching frequency (min.)
Constant Frequency generates predictable noise spectrum
Standard Micro SMD-14 package: 2.08mm X 2.403mm X 0.845mm High
Thin Micro SMD-14 package: 2.08mm X 2.403mm X 0.600mm High
Applications
White LED Display Backlights
White LED Keypad Backlights
1-Cell Li-Ion battery-operated equipment including PDAs, hand-held PCs, cellular phones
Texas Instruments LM2794BL technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments LM2794BL.
- Mounting TypeSurface Mount
- Package / Case14-WFBGA, DSBGA
- Surface MountYES
- Operating Temperature-30°C~85°C TA
- PackagingTape & Reel (TR)
- JESD-609 Codee0
- Pbfree Codeyes
- Part StatusObsolete
- Moisture Sensitivity Level (MSL)1 (Unlimited)
- Number of Terminations14
- Terminal FinishTIN LEAD
- ApplicationsBacklight
- TechnologyCMOS
- Terminal PositionBOTTOM
- Terminal FormBALL
- Peak Reflow Temperature (Cel)260
- Number of Functions1
- Terminal Pitch0.5mm
- Frequency515kHz
- Reflow Temperature-Max (s)40
- Pin Count14
- Number of Outputs4
- Input Voltage-Nom3.6V
- Voltage - Output3.8V
- Input Voltage (Min)2.7V
- TopologySwitched Capacitor (Charge Pump)
- Input Voltage (Max)5.5V
- Switcher ConfigurationDOUBLER INVERTER
- Current - Output / Channel20mA
- Internal Switch(s)Yes
- DimmingAnalog, PWM
- Voltage - Supply (Max)5.5V
- Voltage - Supply (Min)2.7V
- Height Seated (Max)0.855mm
- Width2.08mm
- RoHS StatusNon-RoHS Compliant
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