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AL5802LP (Obsolete)

30V Adjustable Current Sink Linear LED Driver

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Description

The AL5802LP combines a high gain NPN transistor with a pre-biased NPN transistor to make a simple small footprint LED driver. The LED current is set by an external resistor connected from REXT pin (2) to GND pin (3), and the internal high gain transistor develops approximately 0.6V across the external resistor. The AL5802LP open-collector output can operate from 0.8V to 30V enabling it to operate from 5V to 24V power supplies without additional components. PWM dimming of the LED current can be achieved by either driving the BIAS pin (6) with a low impedance voltage source, or drivingthe EN pin (4) with an external open- collector NPN transistor or open-drain N-channel MOSFET. The AL5802LP is available in a U-DFN1616 Type F package and is ideal for driving 10mA to 120mA LED currents.

Feature(s)

  • Reference Voltage VRSET = 0.65V
  • -40 to +125°C Temperature Range
  • 0.8V to 30V Open-Collector Output
  • Negative Temperature Co-Efficient – Automatically Reduces the LED Current at High Temperatures
  • Low Thermal Impedance, Small Footprint DFN1616 Package with Exposed Pads
  • Totally Lead-Free & Fully RoHS Compliant
  • Halogen and Antimony Free. “Green” Device

Application(s)

LED signage, general illumination, emergency lighting

Specifications & Technical Documents

Product Parameters

Accuracy (%)

N/A

BVCBO (V) Min @ Ic=50µA, IE=0µA

30

BVCEO (V) Min @ Ic=1.0mA, IB=0

40

BVEBO (V) Min @ Ie=10µA, IC=0

6

BVEBO (V) Min @ Ie=50µA, IC=0µA

5

Channel Max. Output Current (mA)

150

Compliance (Only Automotive Supports PPAP)

Standard

Dimming

PWM

Efficiency (%)

N/A

ESD Diodes (Y|N)

N

Frequency (kHz)

N/A

hFE Min @ IC=100µA, VCE=10V

40

hFE Min @ IC=10mA, VCE=10V

100

hFE Min @ IC=150mA, VCE=50V

100

hFE Min @ IC=1mA, VCE=10V

70

IBL (nA) Max @ VCE=30V, VBE(Off)=30V

50

ICBO (µA) Max @ VCB=30V, IE=0µA

0.5

ICEX (nA) Max @ VCE=30V, VBE(Off)=30V

50

IEBO (µA) Max @ VEB=4V, IC=0µA

0.5

LED Current (A)

150

LED Current Sense Voltage (mV)

650

Maximum Supply Voltage (V)

30

Maximum VOUT (V)

30

Minimum Supply Voltage (V)

4.5

Number of Channels

1

Output Current (A)

120

Polarity

NPN, NPN Pre-biased

AEC Qualified

No

Temperature Range (°C)

-40 to 125

Topology

Linear LED Driver

VBE(on) (V) Max @ IC=2mA, VCE=15V

1.1

VBE(on) (V) Max @ IC=2mA, VCE=5V

1.1

VBE(on) (V) Min @ IC =2mA, VCE=15V

0.3

VBE(on) (V) Min @ IC=2mA, VCE=5V

0.3

VBE(sat) (V) Max @ IC=10mA, IB=10mA

0.85

VBE(sat) (V) Min @ IC=10m A, IB=10mA

0.65

VCE(sat) (V) Max @ IC=10mA, IB=10mA

0.2

Related Content

Packages

Applications

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Purchase & Availability