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ZLED7010ZI1R

Description
LED Lighting Drivers LED driver
Categorysemiconductor    Other integrated circuit (IC)   
File Size899KB,22 Pages
ManufacturerIDT (Integrated Device Technology)
Environmental Compliance
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ZLED7010ZI1R Overview

LED Lighting Drivers LED driver

ZLED7010ZI1R Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerIDT (Integrated Device Technology)
Product CategoryLED Lighting Drivers
RoHSDetails
Output Current900 mA
Input Voltage6 V to 40 V
Operating Frequency154 kHz
Supply Current - Max600 uA
Minimum Operating Temperature- 40 C
Maximum Operating Temperature+ 85 C
Mounting StyleSMD/SMT
Package / CaseSOP-8
PackagingCut Tape
PackagingMouseReel
PackagingReel
Moisture SensitiveYes
Pd - Power Dissipation1200 mW
Factory Pack Quantity2500
Unit Weight0.030018 oz
40V LED Driver with
Temperature Compensation
Brief Description
The ZLED7010, one of our ZLED Family of LED control
ICs, is an inductive step-down converter that is optimal
for driving a single LED or multiple LEDs (connected in
series) from a voltage source greater than the voltage
rating of the LED. The ZLED7010 operates in continu-
ous mode. Capable of operating efficiently with voltage
supplies ranging from 6 VDC to 40 VDC, it is ideal for
low-voltage lighting applications. The ZLED7010 mini-
mizes current consumption by remaining in a low-current
standby mode (output is off) until a voltage of ≥0.3V is
applied to the ADJ
I
pin.
In operating mode, the ZLED7010 can source LEDs with
an output current of ≤ 750mA (≤ 30 watts of output
power*) that is externally adjustable. The ZLED7010’s
integrated output switch and high-side current sensing
circuit use an external resistor to adjust the average out-
put current. LED control is achieved via an external con-
trol signal at the ZLED7010’s ADJ
I
pin, implemented as
a pulse-width modulation (PWM) waveform for a gated
output current or a DC voltage for continuous current.
ZLED7010
Datasheet
Features
Capable of 95% efficiency*
Operates in continuous mode with a wide input
range from 6 VDC to 40 VDC
Integrated 40V power switch
One-pin on/off or brightness control via DC voltage
or PWM control signal
Switching frequency: ≤ 1MHz
Dimming rate: 1200:1 (typical)
Output current accuracy: 5% (typical)
Built-in temperature compensation and open-circuit
protection for LEDs
Thermal shutdown protection for the ZLED7010
Very few external components needed for operation
Broad range of applications: outputs up to ≤750mA
SOP-8 package
The ZLED7010 provides a temperature compen-
sation function for maintaining stable and reliable
LED operation. LED over-temperature conditions
are detected via a negative temperature coefficient
(NTC) thermistor mounted close to the LEDs. If an
over-temperature condition occurs, the NTC value
reaches the value of a threshold resistor and the
IC reduces LED current automatically. After the
circuit recovers to a safe temperature, current
returns to the set value.
ADJ
O
outputs and ADJ
I
inputs of consecutive ICs
can be interconnected as a driver chain deploying
the temperature compensation information of the
predecessor. This reduces the part count because
only the first stage of the series requires an NTC.
6 to 40 VDC
Application Examples
Illuminated LED signs and other displays
LED traffic and street lighting (low-voltage)
Architectural LED lighting, including low-voltage
applications for buildings
Halogen replacement LEDs (low-voltage)
LED flood-lighting
LED backlighting
General purpose exterior and interior LED lighting,
including applications requiring low-voltage
General purpose low-voltage industrial applications
ZLED7010 Application Circuit
R
S
V
S
D1
1
2
C1
1μF
4
3
n LED
L1
LX
8
47μH
5
V
IN
R
NTC
R
TH
I
SENSE
R3
NTC
ZLED7010
GND
7
C2
100nF
R2
50k
Ω
6
ADJ
I
ADJ
O
*
See section 2.3 and 1.4 for details
© 2016 Integrated Device Technology, Inc.
1
April 20, 2016
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