ZLED7730ZI1R ZMDI, ZLED7730ZI1R Datasheet - Page 21

• 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

4
All pins have an ESD protection of
the Human Body Model with 1.5 k /100 pF based on MIL 883-H, Method 3015.8.
5
Figure 5.1
Table 5.1
Data Sheet
August 16, 2011
I
ZLED7730
High Current 40V LED Driver with Switch Dimming
DIM2
DIM1
GND
SENSE
Pin
LX
NC
NC
V
ESD Protection
Pin Configuration and Package
Because Rs is typically a low value resistor, it is important to consider the resistance of the traces in series
with R
minimize this effect.
The ZLED7x30’s DIM pins are high impedance inputs. When left floating, these pins are pulled up to 3.3V
by internal circuitry. Avoid running high voltage traces close to the DIM pins.
IN
S
ZLED7x30 Pin Configuration
ZLED7x30 Pin Descriptions—SOP-8 Package
as part of the total current sense resistance. Use traces that are as short and wide as possible to
No.
1
2
3
4
5
6
7
8
© 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.
Input voltage (8.5V to 40V).
Current adjustment input. Resistor R
current. I
Not connected; keep floating.
Not connected; keep floating.
Set the number of current levels and current ratio of each level of switch dimming function as follows:
Connect to GND.
Drain of internal power switch
Floating
Floating
GND
GND
DIM1 Pin
OUTnom
=0.1V/R
±3000V according to the Human Body Model (HBM). The ESD test follows
Floating
GND
Floating
GND
DIM2 Pin
Description (Also see section 3.3 for layout guidelines)
S
No dimming
Three levels: 100%, 50%, 20%
Three levels: 100%, 60%, 30%
Two levels: 100%, 30%
S
from I
SENSE
Dimming Mode
to V
IN
determines the nominal average output
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