ZLED7520ZI1R ZMDI, ZLED7520ZI1R Datasheet - Page 2

• Manufacturer Part Number: ZLED7520ZI1R
• Description: LED Lighting Drivers LED driver
• Manufacturer: ZMDI

Specifications of ZLED7520ZI1R

• Rohs: yes
• Input Voltage: 6 V to 40 V
• Operating Frequency: 1 MHz
• Maximum Supply Current: 600 uA
• Output Current: 0.75 A
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Package / Case: DFN-5
• Minimum Operating Temperature: - 40 C
• Power Dissipation: 500 mW

Brief Description
The ZLED7x20 continuous-mode inductive step-
down converter family is part of our line of LED-
control ICs. It is designed for applications requiring
high brightness and high current. It can efficiently
drive a single LED or multiple series-connected
LEDs from a voltage input higher than the LED for-
ward voltage: Vin = 6 to 40 VDC. It provides an
adjustable output current ≤1.2A, which is set via an
external resistor and controlled by the ZLED7x20’s
integrated high-side output current-sensing circuit
and high speed internal 40V power switch. An
external control signal, which can be a DC voltage,
PWM, or microcontroller-generated waveform, on
the ADJ pin can also be used to linearly adjust a
continuous output current or to control a gated out-
put current.
The output can be turned off by applying a voltage
lower than 0.2V to the ADJ pin, which puts the
ZLED7x20 in a low-current standby state.
The ZLED7x20 enables diverse industrial and
consumer lighting applications requiring high
driving currents, wide operating voltage range,
high efficiency, and variable brightness control. It
offers over-temperature and LED open-circuit pro-
tection. The ZLED7x20 can also minimize bill-of-
material costs because very few external com-
ponents are required for most applications. Only a
resistor, a diode, an inductor, and three capacitors
are needed for a typical basic application.
ZLED7x20 Typical Application Circuit
© 2011 Zentrum Mikroelektronik Dresden AG — Rev. 1.2
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner.
The information furnished in this publication is subject to changes without notice.
ZLED7520
High Current 40V LED Driver with Internal Switch
Features
Benefits
Available Support
Physical Characteristics
For additional information on our ZLED driver
family, visit www.zmdi.com/products/led-drivers/
ZLED7020
ZLED7320
ZLED7520
ZLED7720
Up to 0.75A output current
Internal 40V power switch
Wide DC input voltage range 6 to 40 VDC
Output current accuracy: 3% (typical)
Dimming ratio: 1200:1
LED open-circuit protection
Thermal shutdown protection
High efficiency: up to 98%
Single pin on/off and brightness control using DC
voltage or PWM
Very few external components needed for
operation
Footprint compatible to our ZLED7000 depending
on the application.
Evaluation Kit
Operating temperature: -40° C to 105° C
Switching frequency: up to 1MHz
Product
ZLED7x20 Family Selection Matrix
Max. Current Output
0.75A
0.35A
1.2A
1.0A
Package
SOT89-5
DFN-5
DFN-5
DFN-5