zxld1366 Zetex Semiconductors plc., zxld1366 Datasheet - Page 2

• Manufacturer Part Number: zxld1366
• Description: High Accuracy 1a, 60v Led Driver With Internal Switch
• Manufacturer: Zetex Semiconductors plc.

Absolute maximum ratings (voltages to GND unless otherwise stated)
Electrical characteristics
NOTES:
(a) Production testing of the device is performed at 25°C. Functional operation of the device and parameters specified over
(b) V
(c) Static current of device is approximately 700 A, see Graph, Page 17
(d) 100% brightness corresponds to V
Issue 2 - September 2008
© Diodes Incorporated 2008
Symbol
V
V
V
I
I
V
V
I
V
V
V
Input voltage (V
I
LX output voltage (V
Adjust pin input voltage (V
Switch output current (I
Power dissipation (P
(Refer to package thermal de-rating curve on page 26)
Operating temperature (T
Storage temperature (T
Junction temperature (T
These are stress ratings only. Operation outside the absolute maximum ratings may cause device failure. Operation
at the absolute maximum ratings, for extended periods, may reduce device reliability.
Thermal resistance
Junction to ambient (R
Junction to board (R
Junction to case (R
INQoff
INQon
SENSE
SENSE
SENSEHYS
ADJ
ADJoff
IN
SU
SD
SENSE
REF
V
a -40°C to +105°C temperature range, are guaranteed by design, characterization and process control.
supply may cause excessive heating due to increased on-resistance. Tested at 7V guaranteed for 6V by design.
threshold and output current proportionally.
REF
IN
> 16V to fully enhance output transistor. Otherwise out current must be derated - see graphs. Operation at low
/ T Temperature coefficient of V
voltage (V
Parameter
Input voltage
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
External control voltage range on ADJ
pin for DC brightness control
DC voltage on ADJ pin to switch
device from active (on) state to
quiescent (off) state
SENSE
IN
SENSE
pin input current
)
JC
tot
ΨJB
LX
)
)
)
)
ST
LX
)
JA
j MAX
OP
)
)
)
ADJ
)
)
(test conditions: V
ADJ
)
(c)
= V
(d)
ADJ(nom)
REF
= V
TSOT23-5
Measured on ADJ pin
Conditions
See note
ADJ pin grounded
ADJ pin floating,
L=68 H, 3 LEDs,
f = 260kHz
Measured on I
with respect to V
V
V
with pin floating
V
-0.3V to +60V (65V for 0.5 sec)
+0.3V to -5V (measured with respect to V
-0.3V to +60V (65V for 0.5 sec)
-0.3V to +6V
1.25A
SOT23-5; 1W: DFN; 1.8W
-40 to 125°C
-55 to 150°C
150°C
REF
ADJ
ADJ
SENSE
2
82°C/W
33°C/W
IN
. Driving the ADJ pin above V
=24V, T
= 1.25V; V
falling
-
= V
(b)
IN
amb
-0.2
SENSE
IN
=25°C unless otherwise stated)
=18V
IN
pin
DFN
44°C/W
14°C/W
Min.
0.15
195
4.4
0.3
6
-
REF
will increase the V
Typ.
4.75
4.85
1.25
200
±15
1.6
0.2
ZXLD1366
65
50
4
www.diodes.com
www.zetex.com
Max.
0.27
108
205
5.2
2.5
60
10
IN
)
ppm/°C
Unit
SENSE
mA
mV
%
V
V
V
V
V
V
(a)
A
A
.