Halogen and Antimony Free. “Green” Device (Note 3)
Qualified to AEC-Q100 Standards for High Reliability
PPAP Capable (Note 4)
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html 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. Automotive products are AEC-Q100 qualified and are PPAP capable. Automotive, AEC-Q100 and standard products are electrically and thermally the same,
except where specified. For more information, please refer to http://www.diodes.com/quality/product_compliance_definitions/.
Set Nominal Output Current Pin. Configure the output current of the device.
GND Pin
Dimming and On/Off Control Input.
Leave floating for normal operation.
(V
CTRL
= V
REF
= 2.5V giving nominal average output current I
OUTnom
= 0.1/R
S
)
Drive to voltage below 0.4V to turn off output current
Drive with DC voltage (0.5V < V
CTRL
< 2.5V) to adjust output current from 20% to 100% of I
OUTnom
A PWM signal (low level
≤
0.4V and high level > 2.6; transition times less than 1us) allows the output
current to be adjusted below the level set by the resistor connected to SET input pin.
Switch Pin. Connect inductor/freewheeling diode here, minimizing track length at this pin to reduce EMI.
no connection
Input Supply Pin. Must be locally decoupled to GND with > 2.2µF X7R ceramic capacitor – see applications
section for more information.
Exposed pad/TAB connect to GND and thermal mass for enhanced thermal impedance. Should not be used as
electrical ground conduction path.
CTRL
4
SW
N/C
V
IN
EP
5, 6
7
8
EP
Functional Block Diagram
Absolute Maximum Ratings
(@T
A
= +25°C, unless otherwise specified.)
Symbol
ESD HBM
ESD MM
ESD CDM
V
IN
V
SW
V
CTRL
I
SW-RMS
I
SW-PK
T
J
T
LEAD
T
ST
Caution:
Parameter
Human Body Model ESD Protection
Machine Model ESD Protection
Charged Device Model ESD Protection
Continuous V
IN
pin voltage relative to GND
SW voltage relative to GND
CTRL pin input voltage
DC or RMS Switch current
Peak Switch current (<10%)
Junction Temperature
Lead Temperature Soldering
Storage Temperature Range
Ratings
4000
300
1000
-0.3 to +40
-0.3 to +40
-0.3 to +6
1.6
2.5
+150
+300
-65 to +150
Unit
V
V
V
V
V
V
A
A
°C
°C
°C
Stresses greater than the 'Absolute Maximum Ratings' specified above, may cause permanent damage to the device. These are stress ratings only;
functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be
affected by exposure to absolute maximum rating conditions for extended periods of time.
Semiconductor devices are ESD sensitive and may be damaged by exposure to ESD events. Suitable ESD precautions should be taken when handling
