ZLED7730ZI1R ZMDI, ZLED7730ZI1R Datasheet - Page 15

• Manufacturer Part Number: ZLED7730ZI1R
• Description: LED Lighting Drivers LED driver
• Manufacturer: ZMDI

Specifications of ZLED7730ZI1R

• Rohs: yes
• Input Voltage: 8.5 V to 40 V
• Operating Frequency: 1 MHz
• Maximum Supply Current: 600 uA
• Output Current: 0.35 A
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Package / Case: SOP-8
• Minimum Operating Temperature: - 40 C
• Power Dissipation: 500 mW

3
3.1
The ZLED7x30 is designed for applications requiring features such as high-speed switching, variable brightness
control, operation with voltages up to 40V, high efficiency, or protection from over-temperature, or open LED
circuit conditions.
Typical applications include MR16/MR11 LED spot lights, LED street lights, parabolic aluminized reflector (PAR)
LED lights, and other general purpose industrial and consumer LED applications.
Figure 3.1 shows the minimum configuration for switch dimming applications. Figure 3.2 demonstrates the basic
application circuit with the additional capacitors C1 and C3 for enhanced performance. For dimensioning of the
current sense resistor, see section 2. An example of operation with a halogen lamp electronic transformer is
shown in Figure 3.3.
Figure 3.1
Figure 3.2
Data Sheet
August 16, 2011
ZLED7730
High Current 40V LED Driver with Switch Dimming
Application Circuit Design
Applications
ZLED7x30 Application Circuit for Switch Dimming
Basic ZLED7x30 Application Circuit with Output Current Determined only by Rs
Vs = 8.5 to 40 VDC
Vs = 8.5 to 40 VDC
© 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.
Switch
≥220 F
C1
(C1)
0.1 F
0.1 F
C2
C2
Vin
Vin
ZLED7X30
ZLED7X30
GND
GND
Rs
Rs
I
I
DIM2
DIM2
DIM1
DIM1
SENSE
SENSE
LX
LX
D1
D1
GND/Floating
GND/Floating
33 to 220 H
33 to 220 H
L1
L1
(C3)
(C3)
String
String
LED
LED
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