ZXLD1360ET5TA Diodes Zetex, ZXLD1360ET5TA Datasheet - Page 13

• Manufacturer Part Number: ZXLD1360ET5TA
• Description: IC LED DRIVR WHITE BCKLGT TSOT-5
• Manufacturer: Diodes Zetex
• Type: Backlight, White LEDr

Specifications of ZXLD1360ET5TA

• Topology: PWM, Step-Down (Buck)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Automotive
• Type - Secondary: High Brightness LED (HBLED), White LED
• Frequency: 1MHz
• Voltage - Supply: 7 V ~ 30 V
• Voltage - Output: 30V
• 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: 95%
• 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: 1W
• Operating Supply Voltage (min): 7V
• Operating Supply Voltage (max): 30V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ZXLD1360ET5TR

Application Information
Setting nominal average output current with external resistor R
The nominal average output current in the LED(s) is determined by the value of the external current sense resistor (R
connected between V
I
The table below gives values of nominal average output current for several preferred values of current setting resistor (R
the typical application circuit shown on page 1:
The above values assume that the ADJ pin is floating and at a nominal voltage of V
minimum allowed value of sense resistor under these conditions to maintain switch current below the specified maximum
value.
It is possible to use different values of R
Output current adjustment by external DC control voltage
The ADJ pin can be driven by an external dc voltage (V
the nominal average value defined by R
The nominal average output current in this case is given by:
I
Note that 100% brightness setting corresponds to V
increased in proportion to prevent I
The input impedance of the ADJ pin is 50kΩ ±25% for voltages below V
+100mV.
ZXLD1360
Document number: DS33471 Rev. 4 - 2
DC
OUTnom
OUTdc
R
0.13
0.15
S
0.1
GND
+
(Ω)
= (V
= 0.1/R
ADJ
/1.25) x (100mV/R
S
output current (mA)
[for R
Nominal average
IN
ADJ
and I
S
1000
760
667
> 0.1Ω]
SENSE
OUTdc
and is given by:
ZXLD1360
S
) [for 0.3< V
S
S
G ND
.
exceeding 550mA maximum.
if the ADJ pin is driven from an external voltage. (See next section).
ADJ
ADJ
ADJ
www.diodes.com
<2.5V]
), as shown, to adjust the output current to a value above or below
= V
13 of 25
REF
. When driving the ADJ pin above 1.25V, R
S
REF
Diodes Incorporated
and 20kΩ ±25% for voltages above V
A Product Line of
REF
(=1.25V). Note that R
ZXLD1360
S
© Diodes Incorporated
= 0.1V is the
S
March 2011
must be
S
REF
) in
S
)