仕様
| 属性 | 値 |
| Package | Tape & Reel (TR) |
| ProductStatus | Active |
| Type | DC DC Controller |
| Topology | SEPIC, Step-Down (Buck), Step-Up (Boost) |
| InternalSwitch(s) | No |
| NumberofOutputs | 1 |
| Voltage-Supply(Min) | 4.75V |
| Voltage-Supply(Max) | 28V |
| Voltage-Output | 27V |
| Frequency | 100kHz ~ 1MHz |
| Dimming | Analog, PWM |
| Applications | Automotive, Backlight |
| OperatingTemperature | -40°C ~ 125°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 20-TSSOP (0.173, 4.40mm Width) Exposed Pad |
概要
Description
MAX16834AUP+T is Maxim Integrated’s high‑efficiency DC‑DC power management IC intended for portable and automotive applications. It’s a compact buck/LED‑driver device that integrates a switching regulator with protection features, suitable for supplying stable voltages or LED backlights from a wide input range.
Key points:
- High efficiency, fast transient response
- Current‑mode control with soft‑start
- Programmable output/current (for voltage or LED drive)
- Protection: undervoltage lockout, overcurrent, overtemperature, short‑circuit protection
- Dimming options (analog PWM or resistor‑set)
- AUP package with +T denotes tape‑and‑reel packaging
Typical uses:
- LCD backlight LED drivers and general LED lighting
- Portable power supplies and automotive instrumentation
For exact pinout, margins, and programming details, consult the MAX16834AUP+T datasheet.
Key points:
- High efficiency, fast transient response
- Current‑mode control with soft‑start
- Programmable output/current (for voltage or LED drive)
- Protection: undervoltage lockout, overcurrent, overtemperature, short‑circuit protection
- Dimming options (analog PWM or resistor‑set)
- AUP package with +T denotes tape‑and‑reel packaging
Typical uses:
- LCD backlight LED drivers and general LED lighting
- Portable power supplies and automotive instrumentation
For exact pinout, margins, and programming details, consult the MAX16834AUP+T datasheet.
Equivalent
Equivalent parts (functional substitutes) across vendors include:
- Maxim: MAX16833, MAX16835 (same family)
- TI: TLC5940/TLC5941/TLC5960 (multi-channel constant-current LED drivers)
- Onsemi: NCP5623/NCP5624 (multi-channel CC LED drivers)
- Analog Devices: LT3746/LT3741 (multi-output LED drivers)
Note: exact pinout, current, and voltage specs vary. For a precise match, specify channels, per-channel current, voltage range, and package.
- Maxim: MAX16833, MAX16835 (same family)
- TI: TLC5940/TLC5941/TLC5960 (multi-channel constant-current LED drivers)
- Onsemi: NCP5623/NCP5624 (multi-channel CC LED drivers)
- Analog Devices: LT3746/LT3741 (multi-output LED drivers)
Note: exact pinout, current, and voltage specs vary. For a precise match, specify channels, per-channel current, voltage range, and package.
Features
Here are the typical features of MAX16834AUP+T (auto-grade, quad LED driver with integrated boost):
- Four constant-current LED driver channels (independent per channel)
- Integrated boost regulator (no external switching MOSFET needed)
- Wide input range suitable for automotive/industrial applications
- Programmable LED current per channel (via register/resistor)
- PWM and analog dimming for brightness control
- Open/short LED protection with fault reporting/diagnostics
- Overvoltage, undervoltage, overcurrent protections
- Thermal shutdown and/or thermal warning
- Soft-start and current-limit to reduce inrush and EMI
- Serial control interface for programming (SPI/I2C-compatible) and status
- Fault/status pins for system integration
- Small package option with Tape & Reel (AUP+T) for automated assembly
Note: exact voltage/current ranges and interface specifics are in the datasheet; this is a concise feature snapshot.
- Four constant-current LED driver channels (independent per channel)
- Integrated boost regulator (no external switching MOSFET needed)
- Wide input range suitable for automotive/industrial applications
- Programmable LED current per channel (via register/resistor)
- PWM and analog dimming for brightness control
- Open/short LED protection with fault reporting/diagnostics
- Overvoltage, undervoltage, overcurrent protections
- Thermal shutdown and/or thermal warning
- Soft-start and current-limit to reduce inrush and EMI
- Serial control interface for programming (SPI/I2C-compatible) and status
- Fault/status pins for system integration
- Small package option with Tape & Reel (AUP+T) for automated assembly
Note: exact voltage/current ranges and interface specifics are in the datasheet; this is a concise feature snapshot.
Pinout
- Pin count: 16 pins
- Function: High-voltage LED driver controller/boost regulator (multi-channel LED backlight driver) used to regulate current for LED strings.
- Function: High-voltage LED driver controller/boost regulator (multi-channel LED backlight driver) used to regulate current for LED strings.
Manufacturer
Manufacturer: Maxim Integrated (now part of Analog Devices).
What kind of company: A US-based fabless semiconductor company that designs and sells analog and mixed-signal integrated circuits (ICs).
What kind of company: A US-based fabless semiconductor company that designs and sells analog and mixed-signal integrated circuits (ICs).
Application
Applications areas for MAX16834AUP+T include:
- Automotive power management (ECUs, instrument clusters, infotainment)
- Industrial equipment and automation power supplies
- Telecom and networking infrastructure (servers, switches, base stations)
- Computing/consumer electronics (VRMs for CPUs/GPUs, motherboards)
- Battery-powered/portable devices and embedded PMICs
- General DC-DC conversion in compact, high-efficiency power modules
Note: Designed for multi-rail, high-efficiency buck regulation across wide input ranges typical in these environments.
- Automotive power management (ECUs, instrument clusters, infotainment)
- Industrial equipment and automation power supplies
- Telecom and networking infrastructure (servers, switches, base stations)
- Computing/consumer electronics (VRMs for CPUs/GPUs, motherboards)
- Battery-powered/portable devices and embedded PMICs
- General DC-DC conversion in compact, high-efficiency power modules
Note: Designed for multi-rail, high-efficiency buck regulation across wide input ranges typical in these environments.
Package
QFN package: 16-pin, 4×4 mm. +T indicates Tape-and-Reel version.
