
DLD101
LINEAR MODE CURRENT SINK LED DRIVER
Features
Mechanical Data
?
?
?
?
?
?
?
?
?
?
?
Primarily Designed for Driving LED/s for Illumination, Signage
and Backlighting Applications
Ideally Suited for Linear Mode Constant Current Applications
V BE Referenced Current Sink Circuit
Includes:
? N-Channel Enhancement Mode MOSFET (Q1)
? Base Accessible Pre-Biased Transistor (Q2)
High Voltage Capable (50V)
Small Form Factor Surface Mount Package
High Dissipation Capability
Low Thermal Resistance
Lead Free By Design/RoHS Compliant (Note 1)
"Green" Device (Note 2)
Qualified to AEC-Q101 Standards for High Reliability
?
?
?
?
?
?
?
Case: DFN3030D-8
Case Material: Molded Plastic, "Green" Molding Compound.
UL Flammability Classification Rating 94V-0
Moisture Sensitivity: Level 1 per J-STD-020
Terminals: Finish — NiPdAu over Copper leadframe. Solderable
per MIL-STD-202, Method 208
Marking Information: See Page 7
Ordering Information: See Page 7
Weight: 0.0172 grams (approximate)
V CC Supply
LED String
R C
4
3
2
1
S2
B1
B1’
E1
C
G
D
8
Q1
7
R1
6
R2
5
S2
8
B1
7
B1’
6
E1
5
Q2
E
R2
B
R1
Q1
S
V DS
Option 3:
Q2
5
6
7
8
Option 3
I LED ≈
V BE
R S
Options 1 & 2:
Option 2
Option 1
I LED ≈
1.1 V BE
R S
1
D2
2
G2
3
NC
4
C1
1
D2
2
G2
3
NC
4
C1
R S
Option 2:
Capacitor is across R2 for
better noise performance.
Top View
Internal Schematic
Maximum Ratings: (Q1)
Top View
Package Pin-Out Configuration
@T A = 25°C unless otherwise specified
Typical Application Circuit for Linear
Mode Current Sink LED Driver
Drain Source Voltage
Gate-Source Voltage
Characteristic
Symbol
V DSS
V GSS
Value
100
± 20
Unit
V
V
Drain Current (Note 3)
Drain Current (Note 3)
Body-Diode Continuous Current (Note 3)
T A = 25°C
T A = 70°C
Pulsed
I D
I DM
I S
1.0
0.8
3.0
1.0
A
A
A
Maximum Ratings: (Q2)
@T A = 25°C unless otherwise specified
Characteristic
Supply Voltage
Input Voltage
Output Current (DC)
Notes:
1. No purposefully added lead.
Symbol
V CC
V IN
I O
Value
50
-5 to +30
100
Unit
V
V
mA
2. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com/products/lead_free/index.php.
DLD101
Document number: DS32007 Rev. 8 - 2
1 of 9
www.diodes.com
April 2010
? Diodes Incorporated