The ISL97901 is a highly efficient four channel, 1.5A sequential LED driver powered from a single-cell Li-ion battery, or regulated input voltage up to 5.5V. The ISL97901 incorporates an independent current controlled driving mechanism for each of the LED's to allow accurate brightness control.
The ISL97901 also utilizes a buck-boost converter to ensure optimum output voltage is maintained for a wide variety of LED forward voltages. The ISL97901's highly integrated and efficient power conversion core operates at well over 90% efficiency across a wide range of operating conditions. The power conversion core implements a proprietary algorithm that allows seamless transitions and glitch-free operation between the buck and the boost modes as the battery voltage drops during operation.
The ISL97901 provides I/O pins to interface with Intersil's optical sensor IC's for white balance control. White balance is achieved by closing the opto-electrical loop which allows for LED light output to get calibrated against preset target values. The ISL97901 can also be configured to run in an open-loop manner if real-time white balance control is not desired. In this case, the LED currents are set by the internal registers.
LED Driver IC 4 Output DC DC Regulator Step-Down (Buck), Step-Up (Boost) I²C Dimming 375mA 28-QFN (4x5)
IC LED DRV RGLTR I2C 375MA 28QFN Product overview: ISL97901CRZ-T from Renesas Electronics Corporation is a LED Driver IC for LED lighting, display backlights, indicator control, automotive lighting, signage, and regulated current drive circuits. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 375MA. Search-friendly keywords include LED driver IC, constant current, lighting control, display backlight, 375MA, External/Internal LED Drivers. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 137-ISL97901CRZ-T can be used for catalog matching and distributor lookup.
Win Source Part Number: 1253418-ISL97901CRZ-
Category: Integrated Circuits (ICs)>PMIC - LED Drivers
Type: DC DC Regulator
Package: Tape & Reel (TR)
Standard Package: 6,000
Mounting: SMD (SMT)
Voltage - Output: 5.5V
Frequency: 2.5MHz
Current - Output / Channel: 375mA
Internal Switch(s): Yes
Topology: Step-Down (Buck), Step-Up (Boost)
Number of Outputs: 4
Dimming: I2C
Voltage - Supply (Min): 2.7V
Voltage - Supply (Max): 5.5V
Package / Case: 28-VFQFN Exposed Pad
Supplier Device Package: 28-QFN (4x5)
Temperature Range - Operating: 0°C ~ 70°C (TA)
ECCN: EAR99
Fake Threat In the Open Market: 74 pct.
MSL Level: 3 (168 Hours)
REACH Status: REACH Unaffected
HTSUS: 8542.39.0001
Mfr: Renesas Electronics America Inc
Base Product Number: ISL97901
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IC LED DRV RGLTR I2C 375MA 28QFN
| Renesas Electronics Corporation | DigiKey | ERSAELECTRONICS PTE. LTD. | Win Source Electronics | Lingto Electronic Limited | Utmel Electronic Limited | VAST STOCK CO., LIMITED | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|---|---|---|---|
| Product Category | LED Drivers | LED Drivers | LED Drivers | LED Drivers | LED Drivers | LED Drivers | LED Drivers | LED Drivers |
| Product Number | ISL97901CRZ-T | ISL97901CRZ-T-ND | 137-ISL97901CRZ-T | 1253418-ISL97901CRZ-T | ISL97901CRZ-T | 391-ISL97901CRZ-T | ISL97901CRZ-T | ISL97901CRZ-T |
| Product Name | RGB Buck-Boost Four-Channel LED Driver with Color Sequencing and Automatic White Balance | LED Drivers | 375MA LED Driver IC | Integrated Circuits (ICs) - PMIC - LED Drivers | PMIC - LED Drivers | IC LED DRIVER RGLTR DIM 28QFN | LED Lighting Drivers | Integrated Circuits (ICs) - Power Management (PMIC) - LED Drivers |
| Form Factor | Intgrated Circuit (IC) | Intgrated Circuit (IC) | Intgrated Circuit (IC) | Intgrated Circuit (IC) | ||||
| Type | RGB | Dimmable | Dimmable | |||||
| Input Voltage | 2.7 to 5.5 volts | 2.7 to 5.5 volts | 2.7 to 5.5 volts | 2.7 to 5.5 volts | ||||
| Output Voltage | 5.5 volts | 5.5 volts | 5.5 volts | |||||
| Output Current | 1500 milliamps | 375 milliamps | 375 milliamps | 1500 milliamps |
