ZLED7001 Datasheet, PDF (1/14 Pages) List of Unclassifed Manufacturers – Universal LED Driver with Temperature Compensation

Universal LED Driver with
Temperature Compensation
ZLED7001
Datasheet
Brief Description
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.
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.
ZLED7001 Features
• 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
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
V_S
R_IN
n LED
D1
C_LED
8
L1
1 _{VREF VIN}
C_IN
R1
ZLED7001
3
2
LD
GATE ⁵
Q1
C1
PWMD
6
T_OFF GND ^CS
7
4
C_OFF
R_CS
R2
NTC
© 2016 Integrated Device Technology, Inc.
1
April 20, 2016