MAX1577Z
MAX1577Z
PRODUCTION1.2A White LED Regulating Charge Pump for Camera Flashes and Movie Lights
Highest Current, 1.2A, Charge Pumps Enable Brightest WLED Flashes in Camera Phones, Even with Low-Battery Input Voltage
- Part Models
- 2
- 1ku List Price
- price unavailable
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Overview
- 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
The MAX1577Y/MAX1577Z charge pumps drive white LEDs, including camera strobes, with regulated current up to 1.2A (guaranteed to 800mA). The very low openloop 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 backlighting. 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).
Applications
- Camera Phones, Cell Phones, and Smartphones
- LCD Backlights
- PDAs, Digital Cameras, and Camcorders
- White LED Flashes, Strobes, and Movie Lights
Documentation
Data Sheet 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX1577ZETA+ | Thin Dual Flatpack No Leads, Exposed Pad | ||
| MAX1577ZETA+T | Thin Dual Flatpack No Leads, Exposed Pad |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 27, 2024 - 2400 ASSEMBLY |
||
| MAX1577ZETA+ | PRODUCTION | |
| MAX1577ZETA+T | PRODUCTION | |
|
Mar 9, 2023 - 2276A WAFER FAB |
||
| MAX1577ZETA+ | PRODUCTION | |
| MAX1577ZETA+T | PRODUCTION | |
|
Apr 20, 2026 - 2571D PIN/ERRATA |
||
| MAX1577ZETA+T | PRODUCTION | |
|
Jun 20, 2016 - 1612 ASSEMBLY |
||
| MAX1577ZETA+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| LED Drivers 6 | ||
| MAX1576 | PRODUCTION | 480mA White LED 1x/1.5x/2x Charge Pump for Backlighting and Camera Flash |
| MAX1583 | Obsolete | White LED Camera-Flash Boost Converter |
| MAX1573 | PRODUCTION | White LED 1x/1.5x Charge Pump in UCSP and Thin QFN |
| MAX1574 | PRODUCTION | 180mA, 1x/2x, White LED Charge Pump in 3mm x 3mm TDFN |
| MAX8595 | LAST TIME BUY | High-Efficiency, 36V Step-Up Converters with TA Derating Option for 2 to 9 White LEDs |
| MAX8596 | Obsolete | High-Efficiency, 36V Step-Up Converters with TA Derating Option for 2 to 9 White LEDs |
Evaluation Kits
Evaluation Kit for the MAX1577Y, MAX1577Z
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