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ZXLD1366Q PDF даташит

Спецификация ZXLD1366Q изготовлена ​​​​«Diodes» и имеет функцию, называемую «60V LED DRIVER».

Детали детали

Номер произв ZXLD1366Q
Описание 60V LED DRIVER
Производители Diodes
логотип Diodes логотип 

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ZXLD1366Q Даташит, Описание, Даташиты
ZXLD1366Q
AUTOMOTIVE COMPLIANT HIGH ACCURACY 1A, 60V LED DRIVER
Description
The ZXLD1366Q is a continuous mode inductive step-down
converter, designed for driving single or multiple series connected
LEDs efficiently from a voltage source higher than the LED voltage.
The device operates from an input supply between 6V and 60V and
provides an externally adjustable output current of up to 1A.
The ZXLD1366Q uses a high-side output current sensing circuit
which uses an external resistor to set the nominal average output
current. The output current can be adjusted above or below the set
value by applying an external control signal to the 'ADJ' pin.
Enhanced output current dimming resolution can be achieved by
applying a PWM signal to the ‘ADJ’ pin.
Soft-start can be forced using an external capacitor from the ADJ
pin to ground. Applying a voltage of 0.2V or lower to the ADJ pin
turns the output off and switches the device into a low current
standby state.
The ZXLD1366Q is qualified to AEC-Q100 Grade 1 and is
Automotive Compliant supporting PPAPs.
Pin Assignments
(TOP VIEW)
LX 1
GND 2
5 VIN
ADJ 3
TSOT25
4 ISENSE
(TOP VIEW)
LX 1
6 VIN
GND 2
5 GND
ADJ 3
4 ISENSE
UV--DDFFNN33003300--66
Features
Typically Better than 0.8% Output Current Accuracy
Simple and With Low Part Count
Single Pin On/Off and Brightness Control Using DC Voltage or
PWM
PWM Resolution up to 1000:1
High Efficiency (up to 97%)
Switching Frequencies up to 1MHz
Wide Input Voltage Range: 6V to 60V
Inherent Open-Circuit LED Protection
Available in Thermally Enhanced Green Molding Packages
- V-DFN3030-6 JA = +44°C/W
- TSOT25 JA = +82°C/W
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Qualified to AEC-Q100 Standards for High Reliability
PPAP Capable (Note 4)
Typical Application Circuit
Applications
Automotive Lighting:
- Internal Door Lights
- Rear Fog Lamps
- Position Lights
Notes: 1.
2.
3.
4.
No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
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.
Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl)
and <1000ppm antimony compounds.
Automotive products are AEC-Q100 qualified and are PPAP capable. Refer to http://www.diodes.com/quality/product_compliance_definitions/.
ZXLD1366Q
Document number: DS37078 Rev. 1 - 2
1 of 29
www.diodes.com
December 2015
© Diodes Incorporated









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ZXLD1366Q Даташит, Описание, Даташиты
Block Diagram
VIN
ZXLD1366Q
D1
RS L1
5 VIN
4 ISENSE
1 LX
C1
4.7µF
5V R1
Vol tage
regulator
0.2V
-
+
Adj
3
R4 R5
50K 20K
600KHz
R2
D1
1.25V
Gnd
2
-
+
1.35V
R3
-
+ Low voltage
dete ctor
MN
-
+
Figure. 1 Pin Connection for TSOT25 Package
Pin Description
Name
LX
GND
ADJ
ISENSE
VIN
Pad
TSOT25
1
2
3
4
5
V-DFN3030-6
Function
1 Drain of NDMOS switch
2, 5 Ground (0V)
Multi-function On/Off and brightness control pin:
Leave floating for normal operation.(VADJ = VREF = 1.25V giving nominal average output
current IOUTnom = 0.2V/RS)
3 Drive to voltage below 0.2V to turn off output current
Drive with DC voltage (0.3V < VADJ < 2.5V) to adjust output current from 25% to 200% of
IOUTnom
Connect a capacitor from this pin to ground to set soft-start time.
Soft start time increases approximately 0.2ms/nF
Connect resistor RS from this pin to VIN to define nominal average output current IOUTnom =
4 0.2V/RS.
(Note: RSMIN = 0.2V with ADJ pin open-circuit)
Input Voltage (6V to 60V). Decouple to ground with 4.7µF of higher X7R ceramic capacitor close
6
to device.
Exposed Pad (EP) - connected to device substrate.
To improve thermal impedance of package the EP must be connected to power ground but
Pad
should not be used as the 0V (GND) current path.
It can be left floating but must not be connected to any other voltage other than 0V.
ZXLD1366Q
Document number: DS37078 Rev. 1 - 2
2 of 29
www.diodes.com
December 2015
© Diodes Incorporated









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ZXLD1366Q Даташит, Описание, Даташиты
ZXLD1366Q
Absolute Maximum Ratings (Note 5) (@TA = +25°C, unless otherwise specified.)
Symbol
Parameter
VIN Input Voltage
VSENSE ISENSE Voltage (Note 6)
VLX LX Output Voltage
VADJ Adjust Pin Input Voltage
ILX
PTOT
Switch Output Current
Power Dissipation
(Refer to Package thermal de-rating curve on
page 25)
TSOT25
V-DFN3030-6
TOP Operating Temperature
TST Storage Temperature
TJ MAX Junction Temperature
ESD Susceptibility
HBM Human Body Model
CDM Charged Device Model
Notes: 5. All voltages unless otherwise stated are measured with respect to GND.
6. VSENSE is measured with respect to VIN.
Rating
-0.3 to +65
+0.3 to -5
-0.3 to +65
-0.3 to +6
1.25
1
1.8
-40 to +125
-55 to +150
+150
500
1,000
Unit
V
V
V
V
A
W
°C
°C
°C
V
V
Caution:
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 conditions between maximum recommended operating conditions and absolute maximum ratings 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 and transporting these devices.
The human body model is a 100pF capacitor discharge through a 1.5kΩ resistor pin. The machine model is a 200pF capacitor discharged directly into
each pin.
Thermal Resistance
Symbol
JA
ΨJB
JC
Parameter
Junction to Ambient
Junction to Board
Junction to Case
Rating
TSOT25 V-DFN3030-6
82 44
33
14
Unit
°C/W
Recommended Operating Conditions
Symbol
Parameter
Min Max Units
VIN Input voltage (Note 7)
ILX Maximum recommended continuous/RMS switch current
6 60 V
1A
VADJ External control voltage range on ADJ pin for DC brightness control (Note 8)
VADJOFF DC voltage on ADJ pin to ensure devices is off
tOFFMIN Minimum switch off-time
tONMIN Minimum switch on-time
fLX MAX Recommended maximum operating frequency (Note 9)
DLX Duty cycle range
DLX(LIMIT) Recommended duty cycle range of output switch at fLXMAX
0.3
0.01
0.3
2.5
0.25
800
800
625
0.99
0.7
V
V
ns
ns
kHz
TOP Operating Temperature range
-40
+125
°C
Notes:
7. VIN > 16V to fully enhance output transistor. Otherwise out current must be derated - see graphs. Operation at low supply may cause excessive
heating due to increased on-resistance.
8. 100% brightness corresponds to VADJ = VADJ(nom) = VREF. Driving the ADJ pin above VREF will increase the VSENSE threshold and output current
proportionally.
9. ZXLD1366Q will operate at higher frequencies but accuracy will be affected due to propagation delays.
ZXLD1366Q
Document number: DS37078 Rev. 1 - 2
3 of 29
www.diodes.com
December 2015
© Diodes Incorporated










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