ZLED7001
Universal LED Driver with
Temperature Compensation
Datasheet
Brief Description
ZLED7001 Features
The ZLED7001, one of our ZLED family of LED control
ICs, is a peak current-mode control LED driver IC that is
optimal for buck LED driver applications. The ZLED7001
operates in constant off-time mode. Capable of
operating efficiently with voltage sources ranging from 8
VDC to 450 VDC or rectified 110 VAC/ 220 VAC, it is
ideal for High Brightness (HB) LED applications. The
ZLED7001 provides a PWM input for an external
dimming control signal. The ZLED7001’s linear dimming
input can be used both for linear dimming (0 to 240 mV)
and temperature compensation of the LED current.
• Wide input range from 8 VDC to 450 VDC or
110 VAC/220 VAC
• Temperature compensation to protect the LEDs and
extend LED lifetime
• Operates in constant off-time mode
• Both PWM and linear dimming control signal inputs
available
• Very few external components needed for operation
• Broad range of applications: outputs greater than 1A
Because the ZLED7001’s response time is limited only
by the rate of change in the inductor current, it attains a
high performance pulse-width modulation (PWM) dim-
ming response. The ZLED7001 ensures proper output
current regulation, without loop compensation, via peak
current-mode operation.
Application Examples
• Line-powered replacement LED lighting
• Illuminated LED signs and other displays
• LED street and traffic lighting
• Constant-current source for general purposes
• Architecture / building LED lighting
• LED backlighting
• Line powered LED flood lighting
• Interior / exterior LED lighting
ZLED7001 Application Circuit
8 to 450 VDC
VS
R2
NTC
n LED
RIN
CLED
D1
8
L1
1
VIN
VREF
ZLED7001
CIN
R1
Q1
3
2
5
6
LD
PWMD
TOFF GND
GATE
C1
CS
7
4
RCS
COFF
© 2016 Integrated Device Technology, Inc.
1
April 20, 2016