The ISL97900 is a highly efficient 3-channel, 1.5A sequential LED driver powered from a single-cell Li-ion battery, or regulated input voltage up to 5.5V. This LED driver incorporates an independent current controlled driving mechanism for each of the LED's, which allows accurate current control of the LED brightness.
The ISL97900 utilizes a buck-boost converter to ensure that optimum output voltage is maintained for a wide range of LED forward voltages. The integrated buck-boost converter operates 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 ISL97900 architecture includes a 10-bit DAC, which controls the LED currents. Each of the LED currents can be programmed through serial interface.
The ISL97900 also includes the Dynamic Headroom Management function to provide seamless adjustment for the LEDs’ voltages, which reduces power consumption.
Win Source Part Number: 1355217-ISL97900CRZ-
Category: Integrated Circuits (ICs) - Power Management (PMIC) - LED Drivers
Package: Tape & Reel
Temperature Range - Operating: 0°C ~ 70°C (TA)
Fake Threat In the Open Market: 38 pct.
Type: DC DC Regulator
MSL Level: 3 (168 Hours)
Mfr: Renesas Electronics America Inc
Product Status: Active
Frequency: 2.5MHz
Package / Case: 28-VFQFN Exposed Pad
Supplier Device Package: 28-QFN (4x5)
Base Product Number: ISL97900
Mounting Type: Surface Mount
HTSUS: 8542.39.0001
REACH Status: REACH Unaffected
ECCN: EAR99
Topology: Step-Down (Buck), Step-Up (Boost)
Internal Switch(s): Yes
Number of Outputs: 3
Voltage - Supply (Min): 2.8V
Voltage - Supply (Max): 5.5V
Voltage - Output: 5.5V
Current - Output / Channel: 500mA
Dimming: I²C
IC LED DRV RGLTR I2C 500MA 28QFN Product overview: ISL97900CRZ-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 500MA. Search-friendly keywords include LED driver IC, constant current, lighting control, display backlight, 500MA, External/Internal LED Drivers. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 137-ISL97900CRZ-T can be used for catalog matching and distributor lookup.
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| Renesas Electronics Corporation | Win Source Electronics | ERSAELECTRONICS PTE. LTD. | DigiKey | Shenzhen Shengyu Electronics Technology Limited | Lingto Electronic Limited | |
|---|---|---|---|---|---|---|
| Product Category | LED Drivers | LED Drivers | LED Drivers | LED Drivers | LED Drivers | LED Drivers |
| Product Number | ISL97900CRZ-T | 1355217-ISL97900CRZ-T | 137-ISL97900CRZ-T | ISL97900CRZ-T-ND | ISL97900CRZ-T | ISL97900CRZ-T |
| Product Name | RGB Buck-Boost 3-Channel Color Sequencing LED Driver | Integrated Circuits (ICs) - Power Management (PMIC) - LED Drivers | 500MA LED Driver IC | LED Drivers | Integrated Circuits (ICs) - Power Management (PMIC) - LED Drivers | PMIC - LED Drivers |
| Form Factor | Intgrated Circuit (IC) | Intgrated Circuit (IC) | Intgrated Circuit (IC) | |||
| Type | RGB | Dimmable | ||||
| Input Voltage | 2.8 to 5.5 volts | 2.8 to 5.5 volts | 2.8 to 5.5 volts | 2.8 to 5.5 volts | ||
| Output Voltage | 5.5 volts | 5.5 volts | 5.5 volts | |||
| Output Current | 1500 milliamps | 500 milliamps | 500 milliamps |
