Thông số kỹ thuật
MP3302DJ-LF-Z is a fixed-frequency current-mode step-up WLED driver IC developed by Monolithic Power Systems (MPS), specially optimized for single-cell Li-ion battery powered backlight and LED string driving systemsMonolithic….
Phân tích hậu tố
- MP3302: Core boost white LED driver product series
- DJ: TSOT23-5 surface mount package variant
- LF: Lead-free manufacturing process
- -Z: Standard tape-and-reel packaging for automated SMT assembly; -P stands for tray packaging
1. Các thông số điện chính
Thông số kỹ thuật đầu vào
- Operating input voltage range: 2.5 V ~ 6 V DC, perfectly matched to single-cell lithium battery power supply
Output & Switching Performance
- Maximum output boost voltage: 36 V, capable of driving up to 10 series-connected white LEDs
- Internal integrated power MOSFET with 1.3A peak switch current limit
- Fixed switching frequency: 1,3 megahertz, which minimizes the size of external inductor and capacitor
- Feedback reference voltage: Only 200 mV, greatly reduces power loss on the current-sense resistor and improves overall efficiency up to 87%
- Supports single-wire PWM dimming and hardware enable pin for brightness adjustment and module on/off control
2. Built-in Protection Functions
- Open-load automatic shutdown protection to avoid overvoltage damage when LED strings are disconnected
- Input UVLO under-voltage lockout to prevent abnormal startup under low battery voltage
- Cycle-by-cycle over-current limiting protection
- Thermal shutdown protection that disables switching when junction temperature exceeds the threshold, and recovers after temperature cools down
3. Thông tin về bao bì và cơ khí
- Package Type: 5-pin TSOT23 ultra-small surface-mount package
- Compact outline size for highly space-constrained PCB layout
- Moisture Sensitivity Level: MSL 1, no mandatory dry-bag storage restriction before reflow soldering
4. Tiêu chuẩn về môi trường và tuân thủ
- Operating ambient temperature range: -40 ℃ ~ +85 ℃
- Fully RoHS lead-free and halogen-free compliant, REACH SVHC compliant
5. Các tình huống ứng dụng điển hình
- LCD screen backlight driver for handheld terminals, digital cameras and small-size portable display panels
- LED indicator and small lighting modules powered by single lithium batteries
- Wearable devices, portable measurement instruments and battery-powered IoT equipment backlight power
- Miniature consumer electronics, smart home device auxiliary LED lighting control
LXB Semicon supplies original MPS MP3302DJ-LF-Z TSOT23-5 36V boost WLED driver IC
