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

Product Specifications

Product Parameters

Accuracy (%)	N/A
Compliance (Only Automotive supports PPAP)	Standard
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 V_{OUT (V)}	30
Minimum Supply Voltage (V)	4.5
Number of Channels	1
Output Current (mA)	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

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2418	2019-11-07	2020-05-07	Device End of Life (EOL)
PCN-2315	2018-03-09	2018-06-09	Qualification of Alternative Wafer Sources for Select Products Due to Closure of Diodes FabTech (KFAB) Facility