GENERAL DESCRIPTION
The ACT6359 step-up DC/DC converter drives white LEDs with an externally programmable constant current.
This device features an integrated, 40V power MOSFET that is capable of driving up to
ten white LEDs in series, providing inherent current matching for uniform brightness.
WLED brightness adjustment is easily achieved via simple external circuitry, which accepts either a PWM or an analog dimming control signal.
The ACT6359 features a variety of protection circuits, including integrated over voltage protection (OVP), cycle-by-cycle current limiting, and thermal shutdown protection circuitry.
The ACT6359 has a 500mA current limit, and is available in a small 6-pin SOT23-6 package.

FEATURES
* High-Efficiency DC/DC WLED Bias Supply
* Internal 40V, 0.55Ω Power MOSFET
* Up to 10 WLEDs per String
* 500mA Peak Current
* Supports Analog and PWM LED Dimming
* Integrated Over-Voltage Protection (OVP)
* Thermal Shutdown
* Cycle-by-Cycle Over Current Protection
* Tiny SOT23-6 Package

APPLICATIONS
* TFT LCD Displays
* Smart Phones
* Portable Media Players
* GPS/Personal Navigation Devices
TAG supplies, WLED

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GENERAL DESCRIPTION
The ACT6360 step-up DC/DC converter drives white LEDs with an externally programmable constant current.
This device features an integrated, 40V power MOSFET that is capable of driving up to
ten white LEDs in series, providing inherent current matching for uniform brightness.
WLED brightness adjustment is easily achieved via simple external circuitry, which accepts either a PWM or an analog dimming control signal.
The ACT6360 features a variety of protection circuits, including integrated over voltage protection (OVP), cycle-by-cycle current limiting, and thermal shutdown protection circuitry.
The ACT6360 has a 1000mA current limit, and is available in a small 6-pin SOT23-6 package.

FEATURES
* High-Efficiency DC/DC WLED Bias Supply
* Internal 40V, 0.55Ω Power MOSFET
* Up to 10 WLEDs per String
* 1000mA Peak Current
* Supports Analog and PWM LED Dimming
* Integrated Over-Voltage Protection (OVP)
* Thermal Shutdown
* Cycle-by-Cycle Over Current Protection
* Tiny SOT23-6 Package

APPLICATIONS
* TFT LCD Displays
* Smart Phones
* Portable Media Players
* GPS/Personal Navigation Devices

TAG supplies, WLED

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GENERAL DESCRIPTION
The ACT6357 and ACT6358 step-up DC/DC converters drive white LEDs with an externally programmable constant current.
These devices feature integrated, 40V power MOSFETs that are capable of driving up to ten white LEDs in series, providing inherent current matching for uniform brightness.
WLED brightness adjustment is easily achieved via a dual-function pin, which accepts either a PWM or an analog dimming control signal.
The ACT6357 and ACT6358 feature a variety of protection circuits, including integrated over voltage protection (OVP), programmable soft-start, cycleby- cycle current limiting, and thermal shutdown protection circuitry.
The ACT6357 has 500mA current limit, while the ACT6358 has 1A current limit.
Both parts are available in a small 3mm x 3mm 8-pin TDFN33-8.

FEATURES
* High-Efficiency DC/DC WLED Bias Supply
* Internal 40V, 0.55Ω Power MOSFET
* Up to 10 WLEDs per String
* Two Peak Current Options:
-ACT6357: 0.5A
-ACT6358: 1A
* Supports Analog and PWM LED Dimming
* Integrated Over-Voltage Protection (OVP)
* Programmable Soft-Start Function
* Thermal Shutdown
* Cycle-by-Cycle Over Current Protection
* Tiny TDFN33-8 Package

APPLICATIONS
* TFT LCD Displays
* Smart Phones
* Portable Media Players
* GPS/Personal Navigation Devices

ACT6358
ACT6357NH-T
ACT6358NH-T

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