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PDF ZXLD1371Q Data sheet ( Hoja de datos )
| Número de pieza | ZXLD1371Q | |
| Descripción | AUTOMOTIVE COMPLIANT 60V HIGH ACCURACY BUCK/BOOST/BUCK-BOOST LED DRIVER-CONTROLLER | |
| Fabricantes | Diodes | |
| Logotipo |  |
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ZZXXLLDD11337711QQ
AUTOMOTIVE COMPLIANT 60V HIGH ACCURACY BUCK/
BOOST/BUCK-BOOST LED DRIVER-CONTROLLER
Description
The ZXLD1371Q is an LED driver controller IC for driving external
MOSFETs to drive high current LEDs. It is a multi-topology controller
enabling it to efficiently control the current through series connected
LEDs. The multi-topology enables it to operate in buck, boost and
buck-boost configurations.
The 60V capability coupled with its multi-topology capability enables it
to be used in a wide range of applications and drive in excess of 15
LEDs in series.
The ZXLD1371Q is a modified hysteretic controller using a patent
pending control scheme providing high output current accuracy in all
three modes of operation. High accuracy dimming is achieved through
DC control and high frequency PWM control.
The ZXLD1371Q uses two pins for fault diagnosis. A flag output
highlights a fault, while the multi-level status pin gives further
information on the exact fault.
The ZXLD1371Q has been qualified to AEC-Q100 Grade 1 and is
Automotive Grade supporting PPAPs.
Pin Assignments
ADJ
REF
TADJ
SHP
STATUS
SGND
PGND
N/C
1
2
3
4
5
6
7
8
TSSOP-16EP
16 GI
15 PWM
14 FLAG
13 ISM
12 VIN
11 VAUX
10 GATE
9 N/C
Features
0.5% Typical Output Current Accuracy
5 to 60V Operating Voltage Range
LED Driver Supports Buck, Boost and Buck-Boost
Configurations
Wide Dynamic Range Dimming
10:1 DC Dimming
1000:1 Dimming Range at 500Hz
Up to 1MHz Switching
High Temperature Control of LED Current Using TADJ
Available in Thermally Enhanced TSSOP-16EP Package with
Green Molding Compound
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Automotive Grade
Qualified to AEC-Q100 Standards for High Reliability
TS16949 Certification
PPAP Capable (Note 4)
Typical Application Circuit
VIN 8V to 22V
C1
10µF
RGI2
75k
R4
1.8k
RGI1 TH1
24k 10k
ILED = 1A
R1
0R05
VAUX VIN
PWM
GI
ISM
L1
33µH D1
PDS3100
ADJ ZXLD1371 GATE
REF
TADJ
FLAG
STATUS
SHP NC SGND PGND
Q1
DMN6068LK3
1 to 6
LEDs
COUT
10µF
C2
330pF
Thermally connected
Buck-Boost Diagram Utilizing Thermistor and TADJ
Notes:
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. Refer to http://www.diodes.com/quality/product_compliance_definitions/.
ZXLD1371Q
Document number: DS37116 Rev. 3 - 2
1 of 42
www.diodes.com
February 2017
© Diodes Incorporated
1 page  
ZZXXLLDD11337711QQ
Electrical Characteristics (Test conditions: VIN = VAUX = 12V, TA = 25°C, unless otherwise specified.)
Symbol
Parameter
Conditions
Min Typ Max Units
Supply and Reference Parameters
Undervoltage Detection Threshold
VUV- Normal Operation to Switch Disabled
VIN or VAUX falling (Note 11)
— 4.5 —
V
Undervoltage Detection Threshold
VUV+
Switch Disabled to Normal Operation
VIN or VAUX rising (Note 11)
IQ-IN
IQ-AUX
Quiescent Current into VIN
Quiescent Current into VAUX
PWM pin floating
Output not switching
ISB-IN
ISB-AUX
Standby Current into VIN
Standby Current into VAUX
PWM pin grounded
for more than 15ms
VREF Internal Reference Voltage
No load
Sourcing 1mA
VREF Change in Reference Voltage with Output Current
Sinking 25µA
VREF_LINE Reference Voltage Line Regulation
VREF-TC Reference Temperature Coefficient
VIN = VAUX, 8.0V<VIN = <60V
—
DC-DC Converter Parameters
IADJ ADJ Input Current (Note 12)
VADJ ≤ 1.25V
VADJ = 5.0V
GI Voltage threshold for Boost and Buck-Boost
VGI Modes Selection (Note 12)
VADJ = 1.25V
IGI GI Input Current (Note 12)
VGI ≤ 1.25V
VGI = 5.0V
IPWM PWM Input Current
VPWM = 5.5V
PWM Pulse Width
tPWMoff
(to enter shutdown state)
PWM input low
— 4.9 —
V
—
—
—
—
1.237
-5
—
-60
—
1.5 3
mA
150 300 µA
90 150 µA
0.7 10
µA
1.25 1.263 V
——
—5
-90 —
mV
dB
±50 — ppm/°C
— — 100 nA
— — 5 µA
— — 0.8 V
— — 100 nA
— — 5 µA
— 36 100 µA
10 15 25 ms
TSDH
Thermal Shutdown Upper Threshold
(GATE output forced low)
Temperature rising
— 150 —
°C
Thermal Shutdown Lower Threshold
TSDL (GATE output re-enabled)
Temperature falling
— 125 —
°C
High-Side Current Monitor (Pin ISM)
IISM Input Current
VSENSE_acc Accuracy of nominal VSENSE Threshold Voltage
VSENSE-OC Over-Current Sense Threshold Voltage
Measured into ISM pin VISM = 12V
VADJ = 1.25V
— 11 20
— ±0.25 ±2
300 350 375
µA
%
mV
Notes:
11. UVLO levels are such that all ZXLD1371Q will function above 5.4V for rising supply voltages and function down to 5V for falling supply voltages.
12. The ADJ and GI pins have an internal clamp that limits the internal node to less than 3V. This provides some failsafe should those pins get
overdriven.
ZXLD1371Q
Document number: DS37116 Rev. 3 - 2
5 of 42
www.diodes.com
February 2017
© Diodes Incorporated
5 Page 
Typical Characteristics – Buck Mode – RS =150mΩ - L = 33µH – ILED = 1.45A
700
600
TA = 25°C, VIN = VAUX,
L = 33µH, RS = 150m
CIN = 100µF
400
ZZXXLLDD11337711QQ
300
200
1 LED
100
1 ~ 16 LEDs
0
5 10 10 15 20 20 25 25 30 30 35 40
INPUT VOLTAGE (V)
100
95
3 LEDs 4 LEDs 5 LEDs6 LEDs
2 LEDs
90
8 LEDs
10 LEDs
12 LEDs 14 LEDs 16 LEDs
85
80 1 LED
75
70
TA = 25°C, VIN = VAUX,
65 L = 33µH, RS = 150m
CIN = 100µF
60
5 10 15 20 25 30 35 40 45 50 55 60
VIN (V)
ZXLD1371Q
Document number: DS37116 Rev. 3 - 2
11 of 42
www.diodes.com
February 2017
© Diodes Incorporated
11 Page | ||
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| PDF Descargar | [ Datasheet ZXLD1371Q.PDF ] | |
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