ISL97692IRTZ-TK

Voltage - Output:	26V
Base Part Number:	ISL97692
Supplier Device Package:	16-TQFN (3x3)
Package / Case:	16-WFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Applications:	Backlight
Dimming:	PWM
Frequency:	400kHz ~ 1.5MHz
Current - Output / Channel:	40mA
Series:	--
Voltage - Supply (Max):	5.5V
Voltage - Supply (Min):	2.4V
Number of Outputs:	4
Internal Switch(s):	Yes
Topology:	Step-Up (Boost)
Type:	DC DC Regulator
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to ISL97692IRTZ-TK

The ISL97692IRTZ-TK is a high efficiency, low noise, low quiescent current LED driver power management integrated circuit (PMIC) designed for LED driven devices. It is a highly integrated LED driver IC providing a self-contained current-regulating charge pump that can easily drive a wide range of LED colors from a single input supply ranging from 3V to 18V. From its integrated 4.5A charge pump and 3.2A sink current capability, the ISL97692IRTZ-TK can drive up to 18 LEDs in series, thus allowing for higher efficiency and brightness than other similar PMICs.

Application of ISL97692IRTZ-TK

The ISL97692IRTZ-TK LED driver is suitable for a wide range of LED applications including displays, mobile phones, cameras and entertainment systems. It is a highly scalable LED driver with both linear and PWM current control modes that can operate up to a maximum frequency of 500 kHz. With its low quiescent current of 14 μA, the ISL97692IRTZ-TK can be used in battery-powered applications, as it reduces the total power consumption dramatically, thus extending battery life.The ISL97692IRTZ-TK also supports arbitrary string driving, allowing for an increased flexibility when driving different designs of LED strings. The latest version of the ISL97692IRTZ-TK also supports open-circuit, short-circuit and thermal protection for safe operation.

Working Principle of ISL97692IRTZ-TK

At the heart of ISL97692IRTZ-TK is its internal high-efficiency, low-noise, current-regulating charge pump, which efficiently converts input voltages of 3V to 18V into adjustable regulated and programmable constant current LED driving output voltages.The ISL97692IRTZ-TK supports both linear and PWM current control modes, with the linear mode operating from a 350Hz minimum frequency and a 500kHz maximum frequency, and the PWM mode operating from a 14kHz minimum frequency and a 150kHz maximum frequency. Both current control modes support dimming control with pulse width modulation and programming of output current, enabling the user to select the required output current for the LEDs.The ISL97692IRTZ-TK also features a soft start circuit to reduce inrush current and a thermal protection circuit to protect the LEDs from overtemperature conditions. The integrated 4.5A charge pump and 3.2A sink current capability of the ISL97692IRTZ-TK also allow for up to 18 LEDs to be driven in series without compromising efficiency and brightness.

Conclusion

The ISL97692IRTZ-TK is a high efficiency, low noise, low quiescent current LED driver PMIC designed for LED driven devices. It is capable of driving up to 18 LEDs in series, thus allowing for higher efficiency and brightness than other similar PMICs. The ISL97692IRTZ-TK supports linear and PWM current control modes and arbitrary string driving for increased flexibility when driving different designs of LED strings. It also features built-in soft start and thermal protection circuits for upgraded safety and smoother operation. For these reasons, the ISL97692IRTZ-TK is a great choice of LED driver PMIC for a wide range of LED applications, including displays, mobile phones, cameras and entertainment systems.

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