RT8577AGQW
200kHz~2.1MHz PWM 4 DC-DC 120mA 5.5V~40V WQFN-20(5x5) LED Drivers RoHS
High Voltage 4-CH LED Driver
- Manufacturer
- RICHTEK
- Manufacturer part #
- RT8577AGQW
- Store part #
- C5896777
- Package / case
- WQFN-20(5x5)
- Category
- LED Drivers
- Packaging
- Tape & Reel (TR)
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement · policy
1,179 in stock
#C5896777
Stock & price checked 5 days ago
| Quantity | Unit price | Pack price |
|---|---|---|
| 1+ | ₹136.26 | ₹136.26 |
| 10+ | ₹111.48 | ₹1,114.80 |
| 30+ | ₹98.01 | ₹2,940.30 |
| 100+ | ₹82.58 | ₹8,258.00 |
| 500+ | ₹75.85 | ₹37,925.00 |
| 1,500+ | ₹72.80 | ₹1,09,200.00 |
1 × ₹136.26
₹136.26
excl. GST
₹160.79 incl. 18% GST
- Dispatch in 7–10 working days
- GST invoice with every order
- Standard pack: 1,500 per reel
RT8577AGQW
₹136.26 for 1 + GST
Specifications
- Frequency - Switching
- 200kHz~2.1MHz
- Dimming
- PWM
- Number of Channels
- 4
- Type
- DC-DC
- Switch tube (built-in/external)
- External
- Operating Temperature
- -40℃~+85℃
- Output Current
- 120mA
- Features
- Over Voltage Protection;Short Circuit Protection;Over-Temperature Protection (OTP)
- Topology
- Boost
- Constant Current Accuracy
- 1.5%
- Voltage - Input(DC)
- 5.5V~40V
Packaging & compliance
- RoHS
- ROHS3 Compliant
- Lifecycle
- Active
- ECCN
- EAR99
- Packaging
- Tape & Reel (TR)
- Standard pack
- 1,500 / Reel
- Sold per
- Piece
- Minimum order
- 1
- Unit weight
- 1 g
Overview
The RT8577A is an 4- CH LED driver capable of delivering 120mA for each channel. The RT8577A is a current mode boost converter with an adjustable switching frequency via the RT pin from 200kHz to 2.1MHz and a wide VIN range from 5.5V to 40V. The PWM output voltage loop selects and regulates the LED pin with the highest voltage string to 0.6V, hence allowing voltage mismatches between LED strings. The RT8577A automatically detects and disconnects any unconnected and/or broken strings during operation from PWM loop to prevent VOUT from over voltage. The 1.5% matched LED currents on all channels are simply programmed with a resistor. A very high contrast ratio true digital PWM dimming can be achieved by driving the PWM pin with a PWM signal. When an abnormal situation (OVP/short/OTP) occurs, a status signal will be sent to the system to shut down the IC.
Applications
- Automotive Infotainment
- LCD TV, Monitor Display Backlight
- LED Driver Application
- General Purpose Constant Current Source
Key features
- Wide Input Supply Voltage Range : 5.5V to 40V
- Adjustable Boost Controller Switching Frequency from 200kHz to 2.1MHz
- Programmable Channel Current
- Channel Current Matching : ±1.5%
- External Dimming Control
- Boost MOSFET Over Current Protection
- Automatic LED Open/Short Protection to Avoid Output Over Voltage
- VCC Under Voltage Lockout
- Adjustable Over-Voltage Protection
- Thermal Shutdown Protection
- Abnormal Status Indicator for OVP/Short/OTP Condition
- AEC-Q100 Grade 3 Certification
- RoHS Compliant and Halogen Free
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