Maxim Integrated MAX1577YETA T
- Part Number:
- MAX1577YETA T
- Manufacturer:
- Maxim Integrated
- Ventron No:
- 3259416-MAX1577YETA T
- Description:
- IC LED DRIVER RGLTR DIM 8TDFN
- Datasheet:
- MAX1577YETA T
Description
The MAX1577Y/MAX1577Z charge pumps drive white LEDs, including camera strobes, with regulated current up to 1.2A (guaranteed to 800mA). The very low open-loop output resistance allows high flash brightness, even from a low battery input voltage. The adaptive 1x/2x regulating charge-pump operation provides high efficiency (up to 92%) while in movie mode or back-lighting. Fast (1MHz) switching allows the use of tiny external components.
The MAX1577Y/MAX1577Z use an external resistor to set the full-scale LED current. Two enable inputs (EN1 and EN2) provide simple on/off control and LED current of 20%, 33%, or 100% full scale. If there is less than 24mV across the external resistor, the output voltage is regulated. The MAX1577Z has fixed 5.1V output-voltage regulation, while the MAX1577Y has logic-controlled output voltage of 3.4V, 4.6V, or 5.1V for backlighting, keyboard, and RGB applications.
The MAX1577Y/MAX1577Z are available in an 8-pin, 3mm x 3mm TDFN package (0.8mm max height).
Features
Up to 1.2A Output Drive Capability (800mA Guaranteed)
Up to 92% PLED/PBATT Efficiency for Movie Mode
Flexible Brightness Control
Two-Bit Logic for 100%, 33%, 20%, and Off
PWM for 20% to 100%
3% Current Regulation Over Line and Temperature
Current or Voltage Regulation for Flash and Backlighting (MAX1577Y)
Current Regulation for Flash (MAX1577Z)
Low Ripple and EMI
2.7V to 5.5V Supply Voltage Range
Soft-Start Limits Inrush Current
Output-Voltage Regulation Mode
Thermal-Shutdown Protection
8-Pin 3mm x 3mm TDFN Package
Applications
White LED Flashes, Strobes, and Movie Lights
LCD Backlighting
Camera Phones, Cell Phones, and Smart Phones
PDAs, Digital Cameras, and Camcorders
The MAX1577Y/MAX1577Z charge pumps drive white LEDs, including camera strobes, with regulated current up to 1.2A (guaranteed to 800mA). The very low open-loop output resistance allows high flash brightness, even from a low battery input voltage. The adaptive 1x/2x regulating charge-pump operation provides high efficiency (up to 92%) while in movie mode or back-lighting. Fast (1MHz) switching allows the use of tiny external components.
The MAX1577Y/MAX1577Z use an external resistor to set the full-scale LED current. Two enable inputs (EN1 and EN2) provide simple on/off control and LED current of 20%, 33%, or 100% full scale. If there is less than 24mV across the external resistor, the output voltage is regulated. The MAX1577Z has fixed 5.1V output-voltage regulation, while the MAX1577Y has logic-controlled output voltage of 3.4V, 4.6V, or 5.1V for backlighting, keyboard, and RGB applications.
The MAX1577Y/MAX1577Z are available in an 8-pin, 3mm x 3mm TDFN package (0.8mm max height).
Features
Up to 1.2A Output Drive Capability (800mA Guaranteed)
Up to 92% PLED/PBATT Efficiency for Movie Mode
Flexible Brightness Control
Two-Bit Logic for 100%, 33%, 20%, and Off
PWM for 20% to 100%
3% Current Regulation Over Line and Temperature
Current or Voltage Regulation for Flash and Backlighting (MAX1577Y)
Current Regulation for Flash (MAX1577Z)
Low Ripple and EMI
2.7V to 5.5V Supply Voltage Range
Soft-Start Limits Inrush Current
Output-Voltage Regulation Mode
Thermal-Shutdown Protection
8-Pin 3mm x 3mm TDFN Package
Applications
White LED Flashes, Strobes, and Movie Lights
LCD Backlighting
Camera Phones, Cell Phones, and Smart Phones
PDAs, Digital Cameras, and Camcorders
Maxim Integrated MAX1577YETA T technical specifications, attributes, parameters and parts with similar specifications to Maxim Integrated MAX1577YETA T.
- Factory Lead Time6 Weeks
- MountSurface Mount
- Mounting TypeSurface Mount
- Package / Case8-WDFN Exposed Pad
- Number of Pins8
- Operating Temperature-40°C~85°C TA
- PackagingTape & Reel (TR)
- Published2004
- JESD-609 Codee3
- Pbfree Codeyes
- Part StatusActive
- Moisture Sensitivity Level (MSL)1 (Unlimited)
- Number of Terminations8
- ECCN CodeEAR99
- Terminal FinishMatte Tin (Sn)
- ApplicationsBacklight, Camera Flash
- TechnologyBICMOS
- Terminal PositionDUAL
- Peak Reflow Temperature (Cel)260
- Number of Functions1
- Terminal Pitch0.65mm
- Frequency1MHz
- Base Part NumberMAX1577
- Pin Count8
- Number of Outputs1
- Input Voltage-Nom3.6V
- Output Current1.2A
- Voltage - Output3.4V 4.6V 5.1V
- Input Voltage (Min)2.7V
- TopologySwitched Capacitor (Charge Pump)
- Input Voltage (Max)5.5V
- Switcher ConfigurationSINGLE
- Current - Output / Channel800mA
- Internal Switch(s)Yes
- DimmingPWM
- Voltage - Supply (Max)5.5V
- Voltage - Supply (Min)2.7V
- Length3mm
- Width3mm
- Radiation HardeningNo
- RoHS StatusROHS3 Compliant
- Lead FreeLead Free
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