BCR430UW6
LOW DROPOUT VOLTAGE LINEAR LED DRIVER IC IN SOT26
Description
The BCR430U is a monolithically integrated linear LED controller
designed to function as a Constant Current Regulator (CCR) for linear
LED driving. The device operates over a voltage range from 5V to
42V and regulates the output LED current up to 100mA, set by an
external resistor. It is designed for driving LEDs in strings and will
reduce current at increasing temperatures to self-protect. The low
voltage drop during current regulation allows efficient driving of LED
strings with a range of forward voltages and supply voltage
tolerances.
Features
LED Current Tolerance of ±5% at 95mA Output Current
Thermal Protection Reduces LED Current at Elevated
Temperature
Low Typical Saturation Voltage of 115mV at 50mA
5mA to 100mA Adjustable LED Current with an External Resistor
5V to 42V Supply Voltage
High Power 1W Dissipation in SOT26
No External Capacitors Required for Stable Operation
LED Dimming Using PWM
Parallel Devices to Increase Regulated Current
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
For automotive applications requiring specific change control
(i.e. parts qualified to AEC-Q101, PPAP capable, and
manufactured in IATF 16949 certified facilities), please
contact us
or your local Diodes representative.
https://www.diodes.com/quality/product-definitions/
Applications
LED Strips
LED Panel Displays
Architectural and Landscape Lighting
Mood and Decorative Lighting
Retail Lighting
Mechanical Data
Case: SOT26
Case Material: Molded Plastic. “Green” Molding Compound.
UL Flammability Rating 94V-0
Moisture Sensitivity: Level 1 per J-STD-020
Terminals: Finish - Matte Tin Plated Leads.
Solderable per MIL-STD-202, Method 208
Weight: 0.018 grams (Approximate)
SOT26
Typical Configuration
Ordering Information
(Note 4)
Product
BCR430UW6-7
Notes:
Marking
430
Reel Size (inches)
7
Tape Width (mm)
8
Quantity per Reel
3,000
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and
Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
4. For packaging details, go to our website at https://www.diodes.com/design/support/packaging/diodes-packaging/.
BCR430UW6
Datasheet number: DS42214 Rev. 2 - 2
1 of 9
www.diodes.com
October 2019
© Diodes Incorporated
BCR430UW6
Marking Information
SOT26
430 = Part Marking (See Ordering Information)
YM = Date Code Marking
Y = Year (ex: G = 2019)
M = Month (ex: 9 = September)
430
Date Code Key
Year
Code
Month
Code
2019
G
Jan
1
Feb
2
2020
H
Mar
3
Apr
4
2021
I
May
5
Jun
6
2022
J
Jul
7
2023
K
Aug
8
Sep
9
2024
L
Oct
O
Nov
N
2025
M
Dec
D
Pinout Diagram
Top View: SOT26
Pin Description
Pin Number
1
2
3
4
5
6
Pin Name
NC
GND
REXT
VS
NC
OUT
Function
Not Connected
Power Ground
External Resistor for Adjusting Output Current
Supply Voltage
Not Connected
I
OUT
- Regulated Output Current
Functional Block Diagram
BCR430UW6
Datasheet number: DS42214 Rev. 2 - 2
2 of 9
www.diodes.com
October 2019
© Diodes Incorporated
BCR430UW6
Absolute Maximum Ratings
(Voltage relative to GND, @T
A
= +25° unless otherwise specified.)
C,
Parameter
Supply Voltage
Output Current
Output Voltage
R
EXT
Current
R
EXT
Voltage
Symbol
V
S
I
OUT
V
OUT
I
REXT
V
REXT
Min
-0.5
0
-0.5
0
-0.5
Max
45
100
42
0.3
5
Unit
V
mA
V
mA
V
Recommended Operating Conditions
Parameter
Supply Voltage
OUT Pin Voltage Range
Output Current (Note 5)
Ambient Temperature Range (Notes 5 & 6)
Normal Operation Junction Temperature Range
(Note 6)
Symbol
V
S
V
OUT
I
OUT
T
A
T
J
Min
5
0.5
5
-40
-40
Max
42
40
100
+125
+125
Unit
V
V
mA
°
C
°
C
Thermal Characteristics
(@T
A
= +25° unless otherwise specified.)
C,
Characteristic
Power Dissipation
Thermal Resistance, Junction to Ambient
Thermal Resistance, Junction to Lead
Operating Junction Temperature
Recommended Storage Temperature
(Note 7)
(Note 8)
(Note 7)
(Note 8)
(Note 9)
T
J
T
S
Symbol
P
D
R
θJA
R
θJL
-40
-55
Value
922
993
136
126
88.5
+150
+165
°
C
°
C
Unit
mW
°
C/W
ESD Ratings
(Note 10)
Characteristics
Electrostatic Discharge – Human Body Model
Charge Device Model
Notes:
Symbols
HBM
CDM
Value
2000
1000
Unit
V
V
JEDEC Class
2
C5
5. Subject to power dissipation and junction temperature not exceeding +125° beyond T
J
= +100° the LED current may start to fold back reducing
C;
C
the temperature of both the IC and LEDs.
6. Device will operate with its junction temperature at +125° however at this junction temperature the LED current will have been automatically reduced
C,
(folded back) from designed (room temperature/+25° level.
C)
7. For a device mounted on MRP FR4-PCB; device is measured under still air conditions whilst operating in a steady-state.
8. Same as Note 7, except the device is mounted on 25mm
25mm 2oz copper.
9. R
θJL
= Thermal resistance from junction to solder-point (at the end of the OUT leads).
10. Refer to JEDEC specification JESD22-A114 and JESD22-A115.
BCR430UW6
Datasheet number: DS42214 Rev. 2 - 2
3 of 9
www.diodes.com
October 2019
© Diodes Incorporated
BCR430UW6
Electrical Characteristics
Characteristic
Supply Voltage
Supply Current (Note 11)
Quiescent Current
Output Current range
(@T
A
= +25° unless otherwise specified.)
C,
Symbol
V
S
I
S
I
Q
I
OUT
Min
5
180
—
40
5
18
Output Current, set by R
EXT
(Note 11)
Driver Voltage Drop (Note 11)
REXT Pin Voltage (Note 11)
Thermal Knee Junction Temperature
(Note 12)
Output Current Change
vs. Temperature
I
OUT
V
OUT-MIN
V
REXT
T
K
(ΔI
OUT
/I
OUT
)
/ ΔT
J
45.7
90
50
0.880
0.875
—
—
—
Typ
—
261
285
67
—
20.8
49.1
95.3
115
0.903
0.892
+125
0.0032
0.0055
Max
42
400
500
100
100
22.7
52.3
100
200
0.960
0.955
—
—
—
Unit
V
μA
μA
μA
mA
mA
mA
mA
mV
V
V
°
C
%/°
C
%/V
—
I
OUT
= 50mA, V
S
= 5V
I
OUT
= 50mA, V
S
= 42V
V
S
= 42V; R
EXT
= open
—
R
EXT
= 30kΩ
R
EXT
= 12.7kΩ
R
EXT
= 6.49kΩ
I
OUT
= 50mA
R
EXT
= 300kΩ
R
EXT
= 6.49kΩ
—
T
J
> -40° T
J
= +120°
C;
C;
I
OUT
= 50mA
I
OUT
= 50mA;
5V < V
S
< 42V or 1V < V
OUT
< 40V
V
OUT
> 1V; V
S
≥ 5V
Test Condition
Output Current Change
(ΔI
OUT
/I
OUT
)
vs. Supply Voltage or Output Voltage
/ ΔV
Notes:
11. Measured under pulsed conditions. Pulse width ≤ 300µs. Duty cycle ≤ 2%.
12. Thermal Knee Junction Temperature is defined as the asymptotic intersection of the +25° temperature I
OUT
current and the I
OUT
current in over-
C
temperature protection mode.
BCR430UW6
Datasheet number: DS42214 Rev. 2 - 2
4 of 9
www.diodes.com
October 2019
© Diodes Incorporated
BCR430UW6
Typical Thermal Characteristics
(@T
A
= +25° unless otherwise specified.)
C,
BCR430UW6
Datasheet number: DS42214 Rev. 2 - 2
5 of 9
www.diodes.com
October 2019
© Diodes Incorporated
