ACT6360US-T

ACT6360US-T Datasheet


ACT6360 Rev 2, 22-Aug-13

Part Datasheet
ACT6360US-T ACT6360US-T ACT6360US-T (pdf)
Related Parts Information
EA6360US EA6360US EA6360US
PDF Datasheet Preview
High-Efficiency, 40V Step-Up WLED Bias Supplies
• High-Efficiency DC/DC WLED Bias Supply
• Internal 40V, 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
• TFT LCD Displays
• Smart Phones
• Portable Media Players
• GPS/Personal Navigation Devices

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.

SIMPLIFIED APPLICATION CIRCUIT

ON OFF

Up to D1 10 WLEDs

ACT6360 OV

ROV2 ROV1

VOUT

COUT

Innovative PowerTM

Copyright 2013 Active-Semi, Inc.
ORDERING INFORMATION

CURRENT LIMIT

ACT6360US-T

TEMPERATURE RANGE
-40°C to 85°C

PACKAGE PINS

SOT23-6

PACKAGING

TAPE & REEL

TOP MARK

WJFS

PIN CONFIGURATION

G 2 ACT6360 5 EN

PIN DESCRIPTIONS

SOT23-6

PIN NAME

SW Switch Output. Connect this pin to the inductor and the Schottky diode.

Ground

Over Voltage Protection Input. The IC is automatically disabled when the voltage at this pin

OV exceeds 1.21V. Connect OV to the center point of a resistive voltage divider connected across
the LED string.

Feedback Input. Connect this pin to the cathode of the bottom LED, and a current feedback resistor between this pin and G to set the LED bias current.

Enable Control. Drive to a logic high to enable the device. Connect to a logic low to disable the device. EN should not be left floating connect EN to IN when unused.

Supply Input

Innovative PowerTM

Copyright 2013 Active-Semi, Inc.

ABSOLUTE MAXIMUM RATINGSc

PARAMETER

SW to G IN, EN to G FB, OV to G Continuous SW Current Junction to Ambient Thermal Resistance Maximum Power Dissipation Operating Junction Temperature Storage Temperature Lead Temperature Soldering, 10 sec

VALUE
to 42 to 6 to VIN + Internally Limited
200 -40 to 150 -55 to 150 300

UNIT
°C/W °C °C °C
c Do not exceed these limits to prevent damage to the device. Exposure to absolute maximum rating conditions for long periods may affect device reliability.

Innovative PowerTM

Copyright 2013 Active-Semi, Inc.

ELECTRICAL CHARACTERISTICS

VIN = VEN = 3.3V, TA = 25°C, unless otherwise specified.

PARAMETER

Power Switch Voltage Rating Input Voltage Under Voltage Lockout Threshold Under Voltage Lockout Hysteresis
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Datasheet ID: ACT6360US-T 522530