ZSLS7025
Datasheet
Boost LED Driver
Brief Description
Features
The ZSLS7025, one of our ZSLS Family of LED
control ICs, is a constant current boost converter
designed for driving high-brightness LEDs. It is
optimal for driving multiple white LEDs connected
in series so that the LED current is uniform for
better brightness and color control. The wide input
range and high output current enables diverse
industrial, after-market automotive, and consumer
lighting applications.
• Wide application input voltage range: 5V to
100V (Higher voltage supported. See section
2.1 in the data sheet.)
• Constant current output limited only by
external component selection
• No loop compensation required
• Internal over-voltage protection
• Internal over-temperature protection
• Brightness control via PWM or DC voltage
control signal input
The ZSLS7025 output current is adjustable via an
external current sense resistor and can deliver
• SOP-8 package
stable constant output current from
milliamps up to 2A or higher.
a
few
Benefits
The ZSLS7025 drives a constant current into the
load. The control loop features a pulse frequency
modulated (PFM) architecture that is inherently
stable and does not need loop compensation.
• High efficiency: up to 95%
• Minimum bill of materials
• Small form-factor package
The ZSLS7025 supports pulse-width modulation
(PWM) or linear voltage dimming, which allows
flexible control of the LED luminance.
Available Support
The ZSLS7025 can operate in applications with a
wide input voltage range from 5V to 100V. An
integrated over-voltage protection (OVP) circuit
protects the system, even under no-load
conditions. The over-voltage protection is
adjustable via external resistors R1 and R2.
• Demonstration Kit
Physical Characteristics
• Junction temperature: -40°C to 125°C
• RoHS compliant
ZSLS7025 Typical Application Circuit
VIN =5 to 100 VDC
L1
D1
CIN
RVDD
ZSLS7025
COUT
LED
VDD
GATE
CS
Q1
R1
String
TOFF
ADJ
FB
CVDD
GND
OVP
RTOFF
RCS
R2
RFB
© 2016 Integrated Device Technology, Inc.
1
April 20, 2016