DLD101 Datasheet, PDF (1/7 Pages) Diodes Incorporated – LINEAR MODE CURRENT SINK LED DRIVER

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 6
• Ordering Information: See Page 6
• Weight: 0.0172 grams (approximate)
V_CC Supply
R_C
LED String
S2 B1 B1’ E1
8 7 65
R1 _R2
Q1
Q2
12 34
D2 G2 NC C1
Top View
Internal Schematic
S2 B1 B1’ E1
8 765
1 234
D2 G2 NC C1
Top View
Package Pin-Out Configuration
43
2
1
GD
C
Q2
B
R2
E
R1
V_DS
Q1
S
56 7 8
Option 3
Option 2
Option 1
R_S
Option 3:
I_LED
≈
V_BE
R_S
Options 1 & 2:
I_LED ≈
1.1 V_BE
R_S
Option 2:
Capacitor is across R2 for
better noise performance.
Typical Application Circuit for Linear
Mode Current Sink LED Driver
Maximum Ratings: (Q1) @T_A = 25°C unless otherwise specified
Characteristic
Symbol
Value
Unit
Drain Source Voltage
V_DSS
100
V
Gate-Source Voltage
V_GSS
±20
V
Drain Current (Note 3)
T_A = 25°C
T_A = 70°C
I_D
1.0
0.8
A
Drain Current (Note 3)
Pulsed
I_DM
3.0
A
Body-Diode Continuous Current (Note 3)
I_S
1.0
A
Maximum Ratings: (Q2) @T_A = 25°C unless otherwise specified
Supply Voltage
Input Voltage
Output Current (DC)
Characteristic
Symbol
V_CC
V_IN
I_O
Value
50
-5 to +30
100
Unit
V
V
mA
Thermal Characteristics – Total Device
Characteristic
Power Dissipation (Note 3) @T_A = 25°C
Thermal Resistance Junction to Ambient Air (Note 3) @T_A = 25°C
Thermal Resistance Junction to Case Air (Note 3) @T_A = 25°C
Operating and Storage Temperature Range
Symbol
P_D
R_θJA
R_θJC
T_J, T_STG
Value
0.7
178
30
-55 to +150
Notes:
1. No purposefully added lead.
2. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com/products/lead_free/index.php.
3. Part mounted on FR-4 substrate PC board, with minimum recommended pad layout (see page 6).
DLD101
Document number: DS32007 Rev. 6 - 2
1 of 7
www.diodes.com
Unit
W
°C/W
°C/W
°C
February 2010
© Diodes Incorporated