ZXLD1366ET5TA Diodes Zetex, ZXLD1366ET5TA Datasheet - Page 4

• Manufacturer Part Number: ZXLD1366ET5TA
• Description: IC LED DRIVR WHITE BCKLGT TSOT-5
• Manufacturer: Diodes Zetex
• Type: Backlight, White LEDr

Specifications of ZXLD1366ET5TA

• Topology: PWM, Step-Down (Buck)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Automotive, Backlight
• Type - Secondary: High Brightness LED (HBLED), White LED
• Frequency: 500kHz
• Voltage - Supply: 6 V ~ 60 V
• Voltage - Output: 60V
• Mounting Type: Surface Mount
• Package / Case: TSOT-23-5, TSOT-5, TSOP-5
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 1A
• Internal Switch(s): Yes
• Efficiency: 97%
• Operating Supply Voltage (typ): 9/12/15/18/24V
• Operating Temperature (min): -40C
• Operating Temperature (max): 125C
• Operating Temperature Classification: Automotive
• Package Type: TSOT-23
• Pin Count: 5
• Mounting: Surface Mount
• Power Dissipation: 1.8W
• Operating Supply Voltage (min): 6V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ZXLD1366E5TA; ZXLD1366E5TR; ZXLD1366E5TR

Electrical Characteristics (
Notes:
ZXLD1366
Document number: DS31992 Rev. 6 - 2
V
ΔV
Symbol
SENSEHYS
D
V
V
I
I
I
DC
V
t
I
I
SENSE
t
V
LXmean
LX(leak)
V
PWM(LF)
OFFmin
INQoff
INQon
SENSE
R
V
V
REF
ONmin
ADJoff
R
ADJon
t
f
REF
ADJ
ADJ
SS
LX
SU
SD
LX
ADJ
3. Static current of device is approximately 700 µA, see Graph, Page 16
4. 100% brightness corresponds to V
5. Ratio of maximum brightness to minimum brightness before shutdown VREF = 1.25/0.3. V
/ΔT
proportionally.
Internal regulator start-up threshold
Internal regulator shutdown threshold
Quiescent supply current with output off
Quiescent supply current with output
switching
Mean current sense threshold voltage
(Defines LED current setting accuracy)
Sense threshold hysteresis
I
Internal reference voltage
Temperature coefficient of V
External control voltage range on ADJ pin for
DC brightness control (Note 4)
DC voltage on ADJ pin to switch device from
active (on) state to quiescent (off) state
DC voltage on ADJ pin to switch device from
quiescent (off) state to active (on) state
Resistance between ADJ pin and VREF
Continuous LX switch current
LX switch ‘On’ resistance
LX switch leakage current
Duty cycle range of PWM signal applied to
ADJ pin during low frequency PWM dimming
mode
Brightness control range
DC Brightness control range
Soft start time
Operating frequency
(See graphs for more details)
Minimum switch ‘ON’ time
Minimum switch ‘OFF’ time
SENSE
pin input current
(Note 3)
Parameter
Test conditions: V
ADJ
= V
ADJ
REF
(nom) = V
REF
www.diodes.com
IN
. Driving the ADJ pin above V
= 24V, T A = 25°C, unless otherwise specified.)
4 of 30
ADJ pin grounded
ADJ pin floating, L=68µH,
3 LEDs, f=260kHz
Measured on I
with respect to V
V
V
Measured on ADJ pin with
pin floating
V
VADJ rising
0< V
V
@ ILX = 1A
PWM frequency <300Hz
PWM amplitude = VREF
Measured on ADJ pin
Note 5
Time taken for output
current to reach 90% of
final value after voltage on
ADJ pin has risen above
0.3V. Requires external
capacitor 22nF. See
graphs for more details
ADJ pin floating
L=68µH (0.2V)
I
Driving 3 LEDs
LX switch ‘ON’
LX switch ‘OFF’
OUT
ADJ
SENSE
ADJ
ADJ
=1A @ V
>V
=1.25V; V
ADJ
falling
REF
< V
Condition
= V
+100mV
REF
IN
LED
-0.2
SENSE
IN
=3.6V
REF
=18V
IN
will increase the V
REF
Diodes Incorporated
pin
A Product Line of
externally driven to 2.5V, ratio 10:1.
0.001
Min.
0.15
10.4
195
4.4
0.3
0.2
30
SENSE
. Threshold and output current
1000:1
130(†)
70(†)
Typ.
4.85
4.75
1.25
0.25
14.2
200
±15
260
1.6
0.2
0.5
5:1
65
50
50
4
2
© Diodes Incorporated
Max.
0.27
0.75
108
205
5.2
2.5
0.3
10
65
18
ZXLD1366
1
5
1
March 2011
ppm/°C
Unit
kHz
mA
mV
ms
µA
µA
kΩ
µA
%
V
V
V
V
V
V
A
Ω
V