ZLED7012-ZI1R [ETC]
Low-Voltage Four-Channel LED Driver;
| 型号： | ZLED7012-ZI1R |
| 厂家： | 
ETC |
| 描述： | Low-Voltage Four-Channel LED Driver |
| 文件： | 总16页 (文件大小：448K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Data Sheet
Rev. 1.0 / November 2010
ZLED7012
Low-Voltage Four-Channel LED Driver
ZLED7012
Low-Voltage Four-Channel LED Driver
Brief Description
Benefits
Current matching accuracy: ±0.9% (typical)
The ZLED7012, one of our ZLED family of LED control
ICs, is a low-noise, constant-frequency charge pump
DC/DC converter that can drive up to four LED
channels, providing a programmable constant current
level ranging from 1.8mA to 20mA per LED channel. It
can also drive higher current LEDs because its current
sinks can operate in parallel. It enables white or other
color LED applications that require uniform intensity
and/or linear progressions in brightness. Capable of
operating efficiently with DC voltage supplies ranging
from 2.8V to 5.5V, it is ideal for small, battery-powered
applications because very few external components are
needed: typically one small-dimension 1μF capacitor
across the C+ and C- pins and two small-dimension
2.2μF capacitors to GND from the VCC and Vout pins.
One-pin on/off or brightness control for up to four
LEDs via a simple PCC serial interface—no pulse-
width modulation or additional control circuit needed
14 programmable current levels for achieving real-
time control of effects such as LED fade-out or
sudden changes in brightness
Low EMI and back-injected noise because the
charge pump is not inductor-based
Very few external components needed for operation
Flexible design enables diverse LED applications: up
to 20mA per channel
LED driver family concept with low-voltage
six-channel LED driver ZLED7022
The ZLED7012’s Pulse Count Control (PCC) serial digi-
tal input is used to enable/disable the LEDs and set the
current level (14 settings using a nearly logarithmic
scale to provide a linear brightness progression). This
simple, high-speed interface allows efficient real-time
management of LEDs via microcontrollers or control
systems.
Available Support
Evaluation Kit
The ZLED7012’s features include integrated soft-start
circuitry to protect against excessive in-rush current dur-
ing power-on and a low-current shutdown mode that
reduces quiescent current consumption to approximately
1μA (typical) by disconnecting the load from the input
when the EN/SET pin is low for a specified time.
Physical Characteristics
Voltage supply: 2.8V to 5.5V DC
Operating temperature: -40°C to 85°C
Small footprint 12-pin UTQFN package (2mm×2mm)
Features
Low quiescent current in low-current shutdown
mode: 1μA typical; <2μA maximum
Integrated thermal shutdown protection prevents
damage by shutting down the ZLED7012 if the die
junction temperature exceeds 160°C (typical)
ZLED7012 Application Circuit
Fixed charge pump switching frequency: 1MHz (typ.)
Soft-start feature protects against excessive
inrush current during power-on
© 2010 Zentrum Mikroelektronik Dresden AG - Rev. 1.0
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, storedused without the prior written consent of the copyright owner.
The information furnished in this publication is subject to changes without notice.
ZLED7012
Low-Voltage Four-Channel LED Driver
Block Diagram
Typical Applications
LED backlighting for portable devices
LED lighting for cell phones, smartphones. PDAs
Illumination of digital photo frames
Backlighting for GPS / navigation systems
Low voltage LED lighting fixtures
General purpose low-voltage industrial and consumer applications
Ordering Information
Product Sales Code
ZLED7012-ZI1R
Description
Package
ZLED7012 – Low-Voltage Four-Channel LED Driver
ZLED7012 Evaluation Board
UTQFN12 (2x2)mm Tape & Reel
Kit
ZLED7012KIT-E1
Sales and Further Information
www.zmdi.com
LED_Drivers@zmdi.com
Zentrum Mikroelektronik
Dresden AG (ZMD AG)
Grenzstrasse 28
01109 Dresden
Germany
ZMD America, Inc.
8413 Excelsior Drive
Suite 200
Madison, WI 53717
USA
Zentrum Mikroelektronik
Dresden AG, Japan Office
2nd Floor, Shinbashi Tokyu Bldg.
4-21-3, Shinbashi, Minato-ku
Tokyo, 105-0004
ZMD FAR EAST, Ltd.
3F, No. 51, Sec. 2,
Keelung Road
11052 Taipei
Taiwan
Japan
Phone +49 (0)351.8822.7.533
Phone +1 (608) 829-1987
Phone +81.3.6895.7410
Phone +886.2.2377.8189
Fax
+49 (0)351.8822.8.7533
Fax
+1 (631) 549-2882
Fax
+81.3.6895.7301
Fax
+886.2.2377.8199
DISCLAIMER: This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Zentrum Mikroelektronik Dresden AG (ZMD AG) assumes no obligation
regarding future manufacture unless otherwise agreed to in writing. The information furnished hereby is believed to be true and accurate. However, under no circumstances shall ZMD AG be liable to any customer, licensee, or
any other third party for any special, indirect, incidental, or consequential damages of any kind or nature whatsoever arising out of or in any way related to the furnishing, performance, or use of this technical data. ZMD AG
hereby expressly disclaims any liability of ZMD AG to any customer, licensee or any other third party, and any such customer, licensee and any other third party hereby waives any liability of ZMD AG for any damages in
connection with or arising out of the furnishing, performance or use of this technical data, whether based on contract, warranty, tort (including negligence), strict liability, or otherwise.
© 2010 Zentrum Mikroelektronik Dresden AG — Rev. 1.0
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.
ZLED7012
Low-Voltage Four-Channel LED Driver
Contents
1
IC Characteristics.......................................................................................................................................................... 6
1.1.
Absolute Maximum Ratings ................................................................................................................................... 6
Operating Conditions ............................................................................................................................................. 6
Electrical Parameters............................................................................................................................................. 6
Typical Performance Graphs ................................................................................................................................. 7
1.2.
1.3.
1.4.
2
Circuit Description ......................................................................................................................................................... 9
2.1.
Block Diagram........................................................................................................................................................ 9
ZLED7012 Overview.............................................................................................................................................. 9
ZLED7012 Soft-Start Feature .............................................................................................................................. 10
ZLED7012 Low-Current Shutdown Mode ............................................................................................................ 10
LED Current Control ............................................................................................................................................ 10
PCC Serial Digital Interface ................................................................................................................................. 11
2.2.
2.3.
2.4.
2.5.
2.6.
3
4
Operating Conditions................................................................................................................................................... 11
3.1.
3.2.
RF Noise Reduction............................................................................................................................................. 11
ZLED7012 Thermal Protection............................................................................................................................. 11
Application Circuit Design............................................................................................................................................ 12
4.1.
4.2.
4.2.1.
4.2.2.
4.2.3.
4.3.
Applications.......................................................................................................................................................... 12
External Components .......................................................................................................................................... 12
External Capacitors Cout and Cin................................................................................................................. 12
External Pump Capacitor.............................................................................................................................. 12
LEDs............................................................................................................................................................. 13
Unused LED Driver Pins ...................................................................................................................................... 13
5
6
7
8
9
ESD Protection............................................................................................................................................................ 13
Pin Configuration and Package................................................................................................................................... 13
Ordering Information ................................................................................................................................................... 15
Glossary ...................................................................................................................................................................... 15
Document Revision History ......................................................................................................................................... 15
© 2010 Zentrum Mikroelektronik Dresden AG — Rev. 1.0
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.
Data Sheet
November 9, 2010
4 of 15
ZLED7012
Low-Voltage Four-Channel LED Driver
List of Figures
Figure 1.1
Figure 1.2
Figure 1.3
Figure 1.4
Figure 1.5
Figure 2.1
Figure 4.1
Figure 6.1
Figure 6.2
Operating Current ICC over Supply Voltage VCC Range (2.8V to 5.5V) at 25°C .............................................. 7
LED Current over Supply Voltage VCC Range (2.8V to 5.5V) for Outputs D0:D3 (LED0:LED3) ..................... 8
Shutdown Current ISD over Supply Voltage VCC Range (2.8V to 5.5V) ........................................................... 8
Current ICC over Temperature Range (-40°C to +85°C).................................................................................. 8
Efficiency (%) over the VCC Range (2.8V to 5.5V) at 25°C ............................................................................. 9
PCC Serial Digital Interface Signal Timing ................................................................................................... 11
Basic Application Circuit using D2:D0 .......................................................................................................... 12
Pin Configuration ZLED7012 – Top View..................................................................................................... 13
UTQFN-12 Package Drawing....................................................................................................................... 14
List of Tables
Table 2.1
Table 6.1
Table 6.2
Current Output Settings................................................................................................................................ 10
Layout Requirements and Pin Descriptions—12-pin UTQFN Package........................................................ 14
UTQFN-12 Package Dimensions ................................................................................................................. 14
© 2010 Zentrum Mikroelektronik Dresden AG — Rev. 1.0
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.
Data Sheet
November 9, 2010
5 of 15
ZLED7012
Low-Voltage Four-Channel LED Driver
1
IC Characteristics
1.1. Absolute Maximum Ratings
No.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNIT
1.1.1
Input voltage referenced to
ground
VCC
-0.3
6.0
V
1.1.2
1.1.3
1.1.4
1.1.5
EN/SET voltage referenced
to ground
VEN/SET
TLEAD
θJA
-0.3
VCC+0.3
300
V
°C
Maximum soldering
temperature
At ZLED7012 lead;
10 seconds maximum
Maximum Thermal
Resistance
UTQFN-12 package
60
°C/W
°C
Junction temperature
TJ
-40
150
1.2. Operating Conditions
No.
1.2.1
1.2.2
PARAMETER
Operating temperature
Input voltage
SYMBOL
Tamb
CONDITIONS
MIN
-40
2.8
TYP
MAX
+85
5.5
UNIT
°C
VCC
V
1.3. Electrical Parameters
Except as noted, conditions for the following specifications are Tamb = -40°C to +85°C (25°C typical);
VCC = 2.8V to 5.5V; Cin = Cout = 2.2μF; Cpump = 1µF
Production testing is at 25°C. At other temperatures within the specified operating range, functional operation of the ZLED7012
and specified parameters are guaranteed by characterization, design, and process control.
Parameters marked with an asterisk (*) are guaranteed by design.
No.
PARAMETER
SYMBOL
CONDITIONS
Input Power Supply
2.8 ≤ VCC ≤ 5.5;
MIN
TYP
MAX
UNIT
1.3.1
1.3.2
1.3.3
Operating current
ICC
0.6
1.0
1.0
2.0
mA
μA
%
I
SET = 20mA; No Load
Current consumption in
shutdown mode
ISHDN
ID-Match
VEN/SET = 0V
Current matching between
channels
ISET = 20mA
±0.9
Charge Pump
1.3.4
1.3.5
Charge pump frequency *
Soft-start time *
fCP
1.0
MHz
TSS
33.0
μs
© 2010 Zentrum Mikroelektronik Dresden AG — Rev. 1.0
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.
Data Sheet
November 9, 2010
6 of 15
ZLED7012
Low-Voltage Four-Channel LED Driver
No.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNIT
EN/SET Input (PCC Serial Digital Interface)
1.3.6
1.3.7
Enable threshold low
Enable threshold high
EN/SET low time
VEN_L
VEN_H
VCC = 2.8V
VCC = 5.5V
0.4
75
75
V
V
1.4
0.3
50
1.3.8
TEN/SET_LO
μs
ns
μs
μs
μs
kΩ
1.3.9
Minimum EN/SET high time TEN/SET_HI_MIN
Maximum EN/SET high time TEN/SET_HI_MAX
1.3.10
1.3.11
1.3.12
1.3.13
EN/SET off timeout *
TOFF
TLAT
500
500
EN/SET latch timeout *
Internal EN/SET pull-down REN/SET_DOWN
resistor
500
1.4. Typical Performance Graphs
Figure 1.1
Operating Current ICC over Supply Voltage VCC Range (2.8V to 5.5V) at 25°C
© 2010 Zentrum Mikroelektronik Dresden AG — Rev. 1.0
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.
Data Sheet
November 9, 2010
7 of 15
ZLED7012
Low-Voltage Four-Channel LED Driver
Figure 1.2
LED Current over Supply Voltage VCC Range (2.8V to 5.5V) for Outputs D0:D3 (LED0:LED3)
TAMB = 25°C
ISET = 20mA
Figure 1.3
Shutdown Current ISD over Supply Voltage VCC Range (2.8V to 5.5V)
TAMB = 25°C
Figure 1.4
Current ICC over Temperature Range (-40°C to +85°C)
© 2010 Zentrum Mikroelektronik Dresden AG — Rev. 1.0
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.
Data Sheet
November 9, 2010
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ZLED7012
Low-Voltage Four-Channel LED Driver
Figure 1.5
Efficiency (%) over the VCC Range (2.8V to 5.5V) at 25°C
2
Circuit Description
2.1. Block Diagram
2.2. ZLED7012 Overview
The ZLED7012 is a low-noise, constant-frequency charge pump DC/DC converter for driving up to four LEDs with constant
current at a level controlled via a PCC serial digital interface, providing a uniform and linear brightness progression. Its 20mA
(maximum) current output per LED channel is optimal for low-voltage or battery-powered applications, such as portable
applications powered by 1-cell lithium batteries. The ZLED7012’s current sinks can operate in parallel for driving higher current
LEDs. Only a few, small external components are needed for typical applications. The ZLED7012’s charge pump operates at a
fixed frequency (1MHz typical) with minimal noise and harmonics.
© 2010 Zentrum Mikroelektronik Dresden AG — Rev. 1.0
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.
Data Sheet
November 9, 2010
9 of 15
ZLED7012
Low-Voltage Four-Channel LED Driver
The current sinks [D3:D0] are controlled by the PCC serial data input on the EN/SET pin. Data is written to an internal data
register that sets the outputs to one of 14 current levels. The Vout pin provides a shared supply voltage for the LEDs. The
capacitor across the C+ and C- pins is the “pump capacitor” used by the charge pump.
2.3. ZLED7012 Soft-Start Feature
The soft-start feature protects against excessive inrush currents during the start-up of the charge pump circuit. This prevents
potential transient noise effects that can affect initial performance, especially in battery-operated applications toward the end of
the battery life.
2.4. ZLED7012 Low-Current Shutdown Mode
The ZLED7012 enters a low-current shutdown mode whenever its EN/SET input is held low longer than TOFF (500μs min-
imum). In the low-current shutdown mode, the ZLED7012 draws minimal current (ISHDN=1μA typical, 2μA maximum) and the
internal data register that controls output current is reset to 0, which disables the outputs.
2.5. LED Current Control
The ZLED7012’s Pulse Count Control (PCC) serial digital interface is used to enable/disable the LED outputs and set the
constant current level to one of 14 settings using a nearly logarithmic scale (approximately 1.5dB difference between settings)
to provide a linear brightness progression as the current level increases/decreases. See Table 2.1 for the current level
settings.
Because [D3:D0] are independent constant current sinks, the voltage at the LED output being driven is determined by the
LED’s forward voltage (VF). This enables accurate LED brightness control and matching by the control system.
Table 2.1
Current Output Settings
Data Level
Current Output per Channel (mA)
1
2
20.0
17.0
14.0
12.0
10.0
8.6
3
4
5
6
7
7.0
8
6.0
9
5.0
10
11
12
13
14
4.2
3.6
3.0
2.4
1.8
© 2010 Zentrum Mikroelektronik Dresden AG — Rev. 1.0
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.
Data Sheet
November 9, 2010
10 of 15
ZLED7012
Low-Voltage Four-Channel LED Driver
2.6. PCC Serial Digital Interface
The ZLED7012 detects the rising edges of the control signal input on the EN/SET pin via an internal counter and decodes the
signal into one of the 14 current level settings given in Table 2.1. The control signal timing can vary (even during a program-
ming cycle), and its frequency can range from high data rates (e.g., 1MHz) to very low rates (e.g., 15kHz). (Also see section
2.4.) After sending the constant current level code data, the control system holds the EN/SET signal high for time TLAT (500μs
minimum) so that the ZLED7012 latches the programmed current level code into the data register and the current level
becomes active as illustrated in Figure 2.1. The internal counter is then reset to zero to be ready for the next programming
cycle. This process is repeated for the next data sent by the control system for subsequent current level programming. See
section 2.4 regarding the low-current shutdown mode, which is entered when the EN/SET signal remains low for longer than
TOFF (500μs minimum).
Figure 2.1
PCC Serial Digital Interface Signal Timing
THI
TLO
TLAT
TOFF
EN/SET
Data Reg
IOUT
1
2
n
1
n= 14
n
0
3
Operating Conditions
3.1. RF Noise Reduction
The ZLED7012 charge pump operates at a fixed frequency of 1MHz (typical) to limit noise and harmonics and prevent genera-
tion of RF interference by the ZLED7012, which could affect operation of local communication devices, such as cell phones.
The soft-start feature also prevents noise transients caused by inrush currents due to charge pump start-up.
The ZLED7012 has significantly lower back-injected noise at the input pin of the charge pump (typically 60mV peak-to-peak),
compared to inductor-based DC/DC boost converter solutions for white LED backlight applications (typically 10 times higher).
3.2. ZLED7012 Thermal Protection
The ZLED7012 includes an on-board temperature sensing circuit that shuts down the ZLED7012 and turns off its outputs if the
die junction temperature exceeds 160°C (typical).
© 2010 Zentrum Mikroelektronik Dresden AG — Rev. 1.0
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.
Data Sheet
November 9, 2010
11 of 15
ZLED7012
Low-Voltage Four-Channel LED Driver
4
Application Circuit Design
4.1. Applications
The ZLED7012 is designed for white or other color LED applications requiring a controlled LED current that is generated from
a varying input voltage. Typical applications include main/sub LCD display backlighting, cell phones (including smartphones),
personal digital assistants (PDAs), MP3/MP4 devices, portable media players (PMPs), and general purpose low-voltage
industrial applications. See section 4.2.3 for details and requirements for the LEDs.
Figure 4.1
Basic Application Circuit using D2:D0
4.2. External Components
4.2.1.
External Capacitors Cout and Cin
The values and type of capacitors used for Cin and Cout can affect several circuit parameters including transient performance,
turn-on time, and output ripple. Use low equivalent series resistance (ESR) ceramic capacitors (internal resistance < 100mΩ)
for best performance, lower costs, and component size reduction. Low ESR capacitors can enable applications at the highest
LED forward voltage with the lowest supply voltage. Tantalum and aluminum electrolytic are not generally recommended
because the ESR is typically in the range of several ohms.
Note: The recommended starting value when determining the optimal value for Cout is 2.2μF. There is often a design trade-off
between low ESR ratings and smaller size because physically larger ceramic capacitors usually have a relatively lower ESR,
which can improve the operating range of the circuit.
Cin is a bypass capacitor ( 2.2μF) essential to proper operation because it must deliver the dynamic current for the charge
pump.
4.2.2.
External Pump Capacitor
The external pump capacitor Cpump connected between the C+ and C- pins is an essential part of the ZLED7012’s internal
charge pump circuit. Because the ZLED7012 operates at a constant charge-pump frequency of 1MHz (typical), it is important
that the pump capacitance is greater than 0.47μF so it can transfer enough charge each cycle to supply sufficient load current.
To reduce voltage fluctuations on the supply line, do not use a value for the pump capacitor that is greater than the bypass
capacitor, Cin.
© 2010 Zentrum Mikroelektronik Dresden AG — Rev. 1.0
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.
Data Sheet
November 9, 2010
12 of 15
ZLED7012
Low-Voltage Four-Channel LED Driver
Select a pump capacitor value in the range of 0.47µF to 2.2µF depending on output current requirements; 1µF is recom-
mended for most applications. When designing the circuit to operate at high levels of output current, choose a higher value of
capacitance; low output currents do not require a large pump capacitor. As with Cin and Cout, low ESR ceramic capacitors are
recommended for the pump capacitor. See section 4.2.1 for a discussion of low ESR capacitors.
4.2.3.
LEDs
The ZLED7012’s low dropout current sinks are capable of driving most types of LEDs with forward voltages as high as 4.7V at
full current with a Vcc input supply of 2.8V to 5.5V. High-current LEDs can be driven by using any of the D3:D0 pins in parallel.
The brightness of the LEDs being driven will match despite any variations in the forward voltage (VF) of the individual LEDs
because the [D3:D0] output current sinks are matched with negligible voltage dependence (see section 1.3 for specifications).
4.3. Unused LED Driver Pins
LED driver pin D0 must always be used. If any of the LED driver pins [D1:D3] are unused, disable the pin(s) by connecting
them to ground to avoid noise coupling.
5
ESD Protection
From each I/O or VCC pin to GND, there is an ESD protection of ±3000V. Between the I/O pins, there is an ESD protection of
±1000V according the Human Body Model (HBM). The ESD test follows the Human Body Model with 1.5 kΩ/100 pF based
on MIL 883-G, Method 3015.7.
6
Pin Configuration and Package
Figure 6.1
Pin Configuration ZLED7012 – Top View
D0
VOUT
VCC
1
2
3
9
8
7
NC
NC
GND
© 2010 Zentrum Mikroelektronik Dresden AG — Rev. 1.0
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.
Data Sheet
November 9, 2010
13 of 15
ZLED7012
Low-Voltage Four-Channel LED Driver
Table 6.1
Layout Requirements and Pin Descriptions—12-pin UTQFN Package
No. Description
Pin
Name
D0
1
2
LED output channel; pin must be used.
Vout
Charge pump output that drives load circuits; a 2.2μF (typical) capacitor must be connected from Vout to
GND pin.
Vcc
C+
3
4
5
6
7
8
9
Power supply input; a 2.2μF (minimum) bypass capacitor must be connected from Vcc to GND pin.
Positive terminal of external pump capacitor.
C-
Negative terminal of external pump capacitor.
EN/SET
GND
NC
PCC serial input for enabling/disabling LEDs and setting current levels.
Ground.
No connection.
No connection.
NC
D3
10 LED output; if not used, connect to ground to avoid noise coupling.
11 LED output; if not used, connect to ground to avoid noise coupling.
12 LED output; if not used, connect to ground to avoid noise coupling.
D2
D1
Figure 6.2
UTQFN-12 Package Drawing
e
b
Pin 1
E
A
A1
A2
D
Bottom View
Side View
Table 6.2
UTQFN-12 Package Dimensions
Dimension (mm)
Dimension (mm)
Symbol
Symbol
Min
0.50
0.00
Nom
0.55
--
Max
0.60
0.05
Min
1.95
1.95
Nom
2.00
2.00
0.50
0.25
Max
2.05
2.05
A
D
E
e
A1
A2
0.25
b
0.20
0.30
© 2010 Zentrum Mikroelektronik Dresden AG — Rev. 1.0
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.
Data Sheet
November 9, 2010
14 of 15
ZLED7012
Low-Voltage Four-Channel LED Driver
7
Ordering Information
Product Sales Code Description
Package
ZLED7012-ZI1R
ZLED7012KIT-E1
ZLED7012 – Low-Voltage Four-Channel LED Driver
ZLED7012 Evaluation Board
UTQFN12 (2x2)mm, Tape & Reel
Kit
8
Glossary
Term
EMI
Description
Electromagnetic Interference
ESR
Equivalent Series Resistance: a capacitor parameter affected by characteristics such as component
composition, size, leads, internal connections, and temperature
PCC
Pulse Count Control: a serial digital interface
9
Document Revision History
Revision
1.0
Date
Description
November 9, 2010 Official Release
Sales and Further Information
www.zmdi.com
LED_Drivers@zmdi.com
Zentrum Mikroelektronik
Dresden AG (ZMD AG)
Grenzstrasse 28
01109 Dresden
Germany
ZMD America, Inc.
8413 Excelsior Drive
Suite 200
Madison, WI 53717
USA
Zentrum Mikroelektronik
Dresden AG, Japan Office
2nd Floor, Shinbashi Tokyu Bldg.
4-21-3, Shinbashi, Minato-ku
Tokyo, 105-0004
ZMD FAR EAST, Ltd.
3F, No. 51, Sec. 2,
Keelung Road
11052 Taipei
Taiwan
Japan
Phone +49 (0)351.8822.7.533
Phone +1 (608) 829-1987
Phone +81.3.6895.7410
Phone +886.2.2377.8189
Fax
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DISCLAIMER: This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Zentrum Mikroelektronik Dresden AG (ZMD AG) assumes no obligation
regarding future manufacture unless otherwise agreed to in writing. The information furnished hereby is believed to be true and accurate. However, under no circumstances shall ZMD AG be liable to any customer, licensee, or
any other third party for any special, indirect, incidental, or consequential damages of any kind or nature whatsoever arising out of or in any way related to the furnishing, performance, or use of this technical data. ZMD AG
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© 2010 Zentrum Mikroelektronik Dresden AG — Rev. 1.0
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without
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Data Sheet
November 9, 2010
15 of 15
Mouser Electronics
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