ZHCS750 [DIODES]
LED DRIVER SOLUTION FOR LCD BACKLIGHTING; LED驱动器解决方案为LCD背光
| 型号： | ZHCS750 |
| 厂家： | 
DIODES INCORPORATED |
| 描述： | LED DRIVER SOLUTION FOR LCD BACKLIGHTING |
| 文件： | 总16页 (文件大小：260K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ZXSC310
LED DRIVER SOLUTION FOR LCD BACKLIGHTING
DEVICE DESCRIPTION
The ZXSC310 is a single or multi cell LED driver The ZXSC310 is a PFM DC-DC controller IC that drives
designed for LCD backlighting applications. The input an external Zetex switching transistor with a very low
voltage range of the device is between 0.8V and 8V. saturation resistance. These transistors are the best
This means the ZXSC310 is compatible with single switching devices available for this type of conversion
NiMH, NiCd or Alkaline cells, as well as multi-cell or enabling high efficiency conversion with low input
LiIon batteries.
voltages. The drive output of the ZXSC310 LED driver
generates a dynamic drive signal for the switching
transistor.
The device features a shutdown control, resulting in a
standby current less than 5µA, and an output capable
of driving serial or parallel LED’s. The circuit generates The circuit can start up under full load and operates
constant power output, which are ideal for driving down to an input voltage of 0.8 volts. The solution
single or multiple LED’s over a wide range of operating configuration ensures optimum efficiency over a wider
voltages. These features make the device ideal for range of load currents; several circuit configurations
driving LED’s particularly in LCD backlight applications are possible depending on battery life versus
for Digital Still cameras and PDA’s.
brightness considerations.
The ZXSC310 is offered in the SOT23-5 package which,
when combined with a SOT23 switching transistor,
generates a high efficiency small size circuit solution.
The IC and discrete combination offers the ultimate
cost Vs performance solution for LED backlight
applications.
FEATURES
• 94% efficiency
• Minimum operating input voltage 0.8V
• Maximum operating input voltage 8V
• Standby current less than 5µA
• Programmable output current
• Series or parallel LED configuration
• Low saturation voltage switching transistor
• SOT23-5 package
TYPICAL APPLICATIONS CIRCUIT
APPLICATIONS
• LCD backlights:
Digital still camera
PDA
V
IN = 3.3V / 5V
Mobile phone
V CC
VDRIVE
STDN
ISENSE
• LED flashlights and torches
• White LED driving
• Multiple LED driving
Gnd
ORDERING INFORMATION
DEVICE
REEL
SIZE
TAPE
WIDTH
QUANTITY
PER REEL
ZXSC310E5TA
180mm
8mm
3000
DEVICE MARKINGS
•
C310
Package SOT23-5
ISSUE 3 - SEPTEMBER 2007
1
SEMICONDUCTORS
ZXSC310
ABSOLUTE MAXIMUM RATINGS:
Supply Voltage
-0.3 to 10V
-0.3 to VCC+0.3V
450mW
Maximum Voltage other pins
Power Dissipation
Operating Temperature
Storage Temperature
-40 to 85 °C
-55 to 150°C
ELECTRICAL CHARACTERISTICS:
Test conditions unless otherwise stated: V =1.5V, T
=25 C
AMB
CC
Conditions
Symbol
Parameter
Min
Typ
Max
94
Units
(1)
Efficiency
%
V
VCC
Recommended supply
voltage range
0.8
8
VCC(min)
Minimum startup and
operating voltage
IDRIVE=-600µA, VDRIVE=0.7V
0.8
0.9
0.92
V
IDRIVE=-600µA, VDRIVE=0.7V,
(3)
T
AMB=-10°C
(2)
IQ
Quiescent current
VEN = VCC (enabled)
0.2
5
mA
µA
VEN = 0V (standby)
10
3.5
4
IVDRIVE
ICC
Base drive current
VDRIVE = 0.7V, VISENSE = 0V
VDRIVE = 0.7V, VISENSE = 0V
1.5
2
mA
mA
(3)
Supply current
VVDRIVE(high)
High level drive voltage
VISENSE = 0V, IVDRIVE =-0.5mA
VISENSE = 50mV, IVDRIVE = 5mA
VCC
VCC
0.2
V
-0.3
0
VVDRIVE(low)
VSTDN(high)
VSTDN(low)
ISTDN
Low level drive voltage
Device enabled
V
V
0.7
Device in standby mode
Enable input current
0.15
1
V
-1
µA
mV
VISENSE
Output current reference
voltage
14
19
24
(threshold)
(2)
TCVISENSE
ISENSE voltage temp co.
0.4
-30
1.7
%/°C
µA
IISENSE
TDRV
ISENSE input current
VISENSE = 0V
0
-65
3.2
Discharge Pulse Width
1.2
µs
OPERATING CONDITIONS
Symbol
FOSC
Parameter
Conditions
Min
Typ
Max
Units
Recommended operating
200
kHz
(4)
frequency
(1) Application dependent, see reference designs
(2) These parameters guaranteed by Design and characteristics
(3) Total supply current =IQ + IVDRIVE, see typical characteristics
(4) Operating frequency is application circuit dependent. See applications section.
ISSUE 3 - SEPTEMBER 2007
2
SEMICONDUCTORS
ZXSC310
FMMT618
For the circuits described in the applications section The following indicates outline data for the device,
more detailed information can be found at
www.zetex.com/fmmt618
Zetex FMMT618 is the recommended pass transistor.
ELECTRICAL CHARACTERISTICS:
Test conditions unless otherwise stated: T
=25 C
AMB
Symbol
Parameter
Conditions
Min
Typ
8
Max
15
Units
VCE(sat)
Collector-Emitter
Saturation Voltage
IC=0.1A, IB=10mA
IC=1A, IB=10mA
IC=2.5A, IB=50mA
IC=10mA
mV
5
70
150
200
130
27
V(BR)CEO
Collector-Emitter
Breakdown Voltage
20
V
5
5 Measured under pulse conditions. Pulse width=300µs. Duty cycle Յ2%
ZHCS1000
Thefollowingindicatesoutlinedatafor theZHCS, more
detailed information can be found at
www.zetex.com/zhcs1000
For the maximum brightness circuit described in the
applications section Zetex ZHCS1000 is the
recommended Schottky diode.
ELECTRICAL CHARACTERISTICS:
Test conditions unless otherwise stated: T
=25 C
AMB
Symbol
Parameter
Conditions
IF = 500mA
IF = 1A
Min
Typ
Max
400
500
Units
VF
Forward voltage
mV
trr
Reverse Recovery Time
Reverse Current
Switched from IF=500mA to
IR=500mA.
12
50
ns
Measured at IR=50mA
VR = 30V
IR
100
µA
Part
VR
IF
IFSM
VF at
IR at
Capacitance
Package
SOT23
Number
at VR = 25V, f = 1MHz
Max. Max. Max. Max.
IF
Max.
A
VR
V
Typ.
pF
10
V
mA
200
A
0.6
20
mV
500
500
500
540
550
500
mA
30
BAT54
30
40
40
40
40
40
250
25
30
30
30
30
30
SOT23-6
SOT23
SOT23
SOT23
SOT23
SOT323
ZHCS2000
ZHCS1000
ZHCS750
ZHCS500
ZHCS400
2000
1000
750
2000 1000
60
12
1000
750
500
400
100
100
40
25
12
25
500
6.75
6.75
20
400
40
20
ISSUE 3 - SEPTEMBER 2007
3
SEMICONDUCTORS
ZXSC310
TYPICAL CHARACTERISTICS
ISSUE 3 - SEPTEMBER 2007
4
SEMICONDUCTORS
ZXSC310
DEVICE DESCRIPTION
The ZXSC310 is PFM, controller IC which, when With every on pulse the switching transistor is kept on
until the voltage across the current-sense resistor
exceeds the threshold of the ISENSE input. The on-pulse
length, and therefore the switching frequency, is
determined by the programmed peak current, the input
voltage and the input to output voltage differential. See
applications section for details.
combined with a high performance external transistor,
enables the production of a high efficiency boost
converterfor LED driving applications. A blockdiagram
is shown for the ZXSC310 below.
The on chip comparator forces the driver circuit and
therefore the external switching transistor off if the
voltage at ISENSE exceeds 19mV. An internal reference
circuit and divider set this threshold.
The driver circuit supplies the external switching
transistor with a fixed drive current. To maximise
efficiency the external transistor switched quickly,
typically being forced off within 30ns.
The voltage at ISENSE is taken from a current sense
resistor connected in series with the emitter of the
switching transistor. A monostable following the
output of the comparator forces the turn-off time of the
output stage to be typically 1.7us. This ensures that
there is sufficient time to discharge the inductor coil
before the next on period.
VCC
I
2
STDN
Drive
R1
VRE
I
VDRIVE
R2
ISENSE
GND
ZXSC310 Block Diagram
ISSUE 3 - SEPTEMBER 2007
5
SEMICONDUCTORS
ZXSC310
REFERENCE DESIGNS
Three typical LED driving applications are shown.
Firstly a typical LCD backlight circuit, then maximum
brightnessLED driving solutionand lastly an optimised
battery life LED driving solution.
LCD backlight circuit
V
IN = 3.3V / 5V
V CC
VDRIVE
STDN
ISENSE
(Notes)
Gnd
This application shows the ZXSC310 in a typical LCD
backlight application for Digital Still Cameras and
PDA’s. The input voltage for these backlight circuits are
usually fixed from the main system power, typically
3.3V or 5V. The LED’s are connected serially so that the
light is distributed uniformly in each LED. The current
provided to the LED’s can either be pulsed or DC. The
DC current is programmable via a sense resistor,
R
SENSE, and is set to an optimum LED current of 20mA
for the reference designs. DC current is achieved by
adding a Schottky rectifying diode and an output
capacitor, as shown in the reference design below.
Materials list
Ref
U1
Q1
D1
C1
Value
N/A
Part Number
ZXSC310E5
FMMT618
ZHCS1000
Generic
Manufacture
Comments
Single cell converter, SOT23-5
Low VCE(sat) NPN, SOT23
1A Schottky diode, SOT23
0805 Size
Zetex Semiconductors
Zetex Semiconductors
Zetex Semiconductors
Various
N/A
N/A
2.2F
150m⍀
250m⍀
68µH
(6)
R1
R1
L1
Generic
Various
1206 Size
(7)
(8)
Generic
Various
1206 Size
Surface mount inductor
(6) Used for 3.3V input, ILED set to 20mA Ϯ10%.
(7) Used for 5V input, ILED to 20mA Ϯ10%.
(8) See Application section.
ISSUE 3 - SEPTEMBER 2007
6
SEMICONDUCTORS
ZXSC310
(Notes)
Maximum brightness solution
L1
D1
VBATT
U1
Q1 ZHCS1000
FMMT617
V
CC
V
DRIVE
D2
S
TDN
I
SENSE
C1
G
ND
ZXSC310
R1
This circuit provides a continuous current output to the
LED by rectifying and buffering the DC-DC output. This
ensures maximum LED brightness.
Materials list
Ref
U1
Q1
D1
R1
C1
L1
Value
N/A
Part Number
ZXSC310E5
FMMT617
ZHCS1000
Generic
Manufacturer
Zetex Plc
Zetex Plc
Zetex Plc
Various
Comments
Single cell converter, SOT23-5
Low VCE(sat) NPN, SOT23
1A Shottky diode, SOT23
0805 Size
N/A
1A
100m⍀
2.2F
100µH(8)
Generic
Various
Low ESR ceramic capacitor
Surface mount inductor
(8) See Application section.
ISSUE 3 - SEPTEMBER 2007
7
SEMICONDUCTORS
ZXSC310
(Notes)
Maximum battery life solution
To ensure optimum efficiency, and therefore
maximum batterylife, theLEDissuppliedwitha pulsed
current. Maximum efficiency is ensured with the
removal of rectifier losses experienced in the
maximum brightness solution.
Materials list
Ref
U1
Q1
R1
L1
Value
N/A
Part Number
ZXSC310E5
FMMT617
Generic
Manufacturer
Comments
Single cell converter, SOT23-5
Low VCE(sat) NPN, SOT23
0805 Size
Zetex Semiconductors
Zetex Semiconductors
Various
N/A
330m⍀
100H(8)
Surface mount inductor
(8) See Application section.
ISSUE 3 - SEPTEMBER 2007
8
SEMICONDUCTORS
ZXSC310
APPLICATIONS INFORMATION
The following section is a design guide for optimum Schottky diode selection
converter performance.
For the maximum battery life solution a Schottky
rectifier diode is not required. As with the switching
transistor the Schottky rectifier diode has a major
impact on the converter efficiency. A Schottky diode
with a low forward voltage and fast recovery time
should be used for this application.
Switching transistor selection
The choice of switching transistor has a major impact
on the converter efficiency. For optimum performance,
a bipolar transistor with low VCE(SAT) and high gain is
required.
The diode should be selected so that the maximum
forward current is greater or equal to the maximum
peak current in the inductor, and the maximum reverse
voltage is greater or equal to the output voltage.
The Zetex FMMT618 is an ideal choice of transistor,
having a low saturation voltage. A data sheet for the
FMMT618 is available on Zetex web site or through
your local Zetex sales office. Outline information is
included in the characteristics section of this data
sheet.
The Zetex ZHCS1000 meets these needs. Datasheets
for the ZHCS Series are available on Zetex web site or
through your local Zetex sales office. Outline
information is included in the characteristics section of
this data sheet.
For the maximum brightness solution a pulsed current
is supplied to the LED and thus a Schottky rectifier
diode is required.
0.4
0.
3
Inductor selection
0.2
The inductor value must be chosen to satisfy
performance, cost and size requirements of the overall
solution. For the LCD backlight reference design we
recommend an inductor value of 68uH with a core
saturation current rating greater than the converter
peak current value and low series resistance.
1
0.
0.0
Inductor selection has a significant impact on the
converter performance. For applications where
efficiency is critical, an inductor with a series resistance
of 500m⍀ or less should be used.
A list of recommended inductors is shown in the table
below:
Part No.
Manufacture
Coilcraft
L
IPK
RDC
DO1608C-683
CR54-680
68H
68H
68H
68H
68H
0.4A
0.61A
0.4A
0.61A
0.4
0.86⍀
0.46⍀
0.37⍀
0.46⍀
1.125⍀
Sumida
Pulse
P1174.683
SFOP5845-R61680
SIS43-680
Samwha
Delta
ISSUE 3 - SEPTEMBER 2007
9
SEMICONDUCTORS
ZXSC310
Peak current definition
The peak current rating is a design parameter whose Once IPK is decided the value of RSENSE can be
value is dependent upon the overall application. For determined by:
the high brightness reference designs, a peak current
of 190mA was chosen to ensure that the converter
could provide the required output power to the LED.
V
ISENSE
RSENSE
=
I
PK
In general, the IPK value must be chosen to ensure that
the switching transistor, Q1, is in full saturation with
maximum output power conditions, assuming
worse-case input voltage and transistor gain under all
operating temperature extremes.
A selection guide of sense resistor and inductor values
for given input voltages, output currents and number
of LED connected in series is provided in the table
below.
Input Voltage
(V)
LED current
No. of LED’s
RSENSE
(m
510
Inductor
H)
68
Efficiency
(%)
80
(mA)
10
10
10
20
20
20
30
30
30
10
10
10
20
20
20
30
30
30
)
(
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
5V
3
4
6
3
4
6
3
4
6
3
4
6
3
4
6
3
4
6
330
150
220
150
77
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
81
79
84
93
79
170
100
47
84
84
77
750
510
330
440
250
150
330
170
100
83
5V
84
5V
79
5V
85
5V
85
5V
82
5V
86
5V
85
5V
83
ISSUE 3 - SEPTEMBER 2007
10
SEMICONDUCTORS
ZXSC310
Output Power Calculation
Capacitor selection
By making the above assumptions for inductance and
peak current theoutputpowercanbedeterminedby:
For pulsed operation, as in the maximum battery life
solution, no capacitors are required at the output to the
LED. For rectified operation, as in the maximum
brightness solution, a small value ceramic capacitor is
required, typically 2.2uF.
T
OFF
P
OUT = (VOUT − VIN)× IAV ×
T
ON + TOFF
Generally an input capacitor is not required, but a small
ceramic capacitor may be added to aid EMC, typically
Note:VOUT=output voltage + Schottky rectifier voltage 470nF to 1uF.
drop.
(notes)
Where
TOFF ≅1.7us (internally set by ZXSC310)
and
T
OFF
VOUT − VIN
(
)
T
ON
=
VIN
and
I
PK + IMIN
2
I
AV
=
Where
V
OUT − VIN × TOFF
(
)
I
MIN = IPK −
L
Operating frequency can be derived by:
1
F =
T
(
ON + TOFF
)
ISSUE 3 - SEPTEMBER 2007
11
SEMICONDUCTORS
ZXSC310
Shutdown Control
Demonstration board
The ZXSC310 offers a shutdown mode that produces a A demonstration board for the LCD backlighting
standby current of less than 5uA when in operation. solution, is available upon request. These can be
When the voltage at the STDN pin is 0.7V or higher the obtained through your local Zetex office or through
ZXSC310 is enabled, hence the driver is in normal Zetex web pages. For all reference designs Gerber files
operation. When the voltage at the STDN pin is 0.1V or and bill of materials can be supplied.
lower the ZXSC310 is disabled, hence the driver is in
shutdown mode. If the STDN pin is open circuit the
ZXSC310 is also enabled.
Layout of LCD backlighting solution
Top Silk
Drill File
Top Copper
Bottom Copper
ISSUE 3 - SEPTEMBER 2007
12
SEMICONDUCTORS
ZXSC310
PINOUT DIAGRAM
VCC
Gnd
1
2
5 VDRIVE
4 ISENSE
STDN 3
Top View
PIN DESCRIPTIONS
Pin No.
Name
Description
1
2
3
4
VCC
Gnd
Supply voltage, generally Alkaline, NiMH or NiCd single cell
Ground
STDN
ISENSE
Shutdown
Inductor current sense input. Internal threshold voltage set to 19mV.
Connect external sense resistor
5
VDRIVE
Drive output for external switching transistor. Connect to base of
external switching transistor.
ISSUE 3 - SEPTEMBER 2007
13
SEMICONDUCTORS
ZXSC310
(NOTES)
ISSUE 3 - SEPTEMBER 2007
14
SEMICONDUCTORS
ZXSC310
Definitions
Product change
Zetex Semiconductors reserves the right to alter, without notice, specifications, design, price or conditions of supply of any product or service.
Customers are solely responsible for obtaining the latest relevant information before placing orders.
Applications disclaimer
The circuits in thisdesign/application note are offered as design ideas. It is the responsibility ofthe user toensure thatthe circuit is fitforthe user's
application and meets with the user's requirements. No representation or warranty is given and no liability whatsoever is assumed by Zetex with
respect to the accuracy or use of such information, or infringement of patents or other intellectual property rights arising from such use or
otherwise. Zetex does not assume any legal responsibility or will not be held legally liable (whether in contract, tort (including negligence),
breach of statutory duty, restriction or otherwise) for any damages, loss of profit, business, contract, opportunity or consequential loss in the use
of these circuit applications, under any circumstances.
Life support
Zetex products are specifically not authorized for use as critical components in life support devices or systems without the express written
approval of the Chief Executive Officer of Zetex Semiconductors plc. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body
or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions
for use provided in the labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Reproduction
The product specifications contained in this publication are issued to provide outline information only which (unless agreed by the company in
writing) may not be used, applied or reproduced for any purpose or form part of any order or contract or be regarded as a representation relating
to the products or services concerned.
Terms and Conditions
All products are sold subjects to Zetex' terms and conditions of sale, and this disclaimer (save in the event of a conflict between the two when the
terms of the contract shall prevail) according to region, supplied at the time of order acknowledgement.
For the latest information on technology, delivery terms and conditions and prices, please contact your nearest Zetex sales office.
Quality of product
Zetex is an ISO 9001 and TS16949 certified semiconductor manufacturer.
To ensure quality of service and products we strongly advise the purchase of parts directly from Zetex Semiconductors or one of our regionally
authorized distributors. For a complete listing of authorized distributors please visit: www.zetex.com/salesnetwork
Zetex Semiconductors does not warrant or accept any liability whatsoever in respect of any parts purchased through unauthorized sales
channels.
ESD (Electrostatic discharge)
Semiconductor devices are susceptible to damage by ESD. Suitable precautions should be taken when handling and transporting devices. The
possible damage to devices depends on the circumstances of the handling and transporting, and the nature of the device. The extent of damage
can vary from immediate functional or parametric malfunction to degradation of function or performance in use over time. Devices suspected of
being affected should be replaced.
Green compliance
Zetex Semiconductors is committed to environmental excellence in all aspects of its operations which includes meeting or exceeding regulatory
requirements with respect to the use of hazardous substances. Numerous successful programs have been implemented to reduce the use of
hazardous substances and/or emissions.
All Zetex components are compliant with the RoHS directive, and through this it is supporting its customers in their compliance with WEEE and
ELV directives.
Product status key:
"Preview"Future device intended for production at some point. Samples may be available
"Active"Product status recommended for new designs
"Last time buy (LTB)"Device will be discontinued and last time buy period and delivery is in effect
"Not recommended for new designs"Device is still in production to support existing designs and production
"Obsolete"Production has been discontinued
Datasheet status key:
"Draft version"This term denotes a very early datasheet version and contains highly provisional
information, which may change in any manner without notice.
"Provisional version"This term denotes a pre-release datasheet. It provides a clear indication of anticipated performance. However, changes to
the test conditions and specifications may occur, at any time and without notice.
"Issue"This term denotes an issued datasheet containing finalized specifications. However, changes to specifications may occur, at any time and
without notice.
ISSUE 3 - SEPTEMBER 2007
15
SEMICONDUCTORS
ZXSC310
SOT23-5 PACKAGE OUTLINE
SOT23-5 PACKAGE DIMENSIONS
DIM
Millimeters
Inches
MIN
MAX
1.45
0.15
1.3
MIN
0.035
0.00
MAX
0.057
0.006
0.051
0.020
0.008
0.118
0.118
0.069
A
A1
A2
b
0.90
0.00
0.90
0.35
0.09
2.80
2.60
1.50
0.035
0.014
0.50
0.20
3.00
3.00
1.75
C
0.0035
0.110
0.102
0.059
D
E
E1
e
0.95 REF
1.90 REF
0.10
0.037 REF
0.075 REF
e1
L
0.60
10
0.004
0.024
10
a°
0
0
© Zetex Semiconductors plc 2007
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Americas
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Corporate Headquarters
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Kustermannpark
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D-81541 München
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Zetex Inc
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Zetex Semiconductors plc
Zetex Technology Park
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Telefon: (49) 89 45 49 49 0
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Telephone: (1) 631 360 2222
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Telephone: (852) 26100 611
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Telephone (44) 161 622 4444
Fax: (44) 161 622 4446
hq@zetex.com
ISSUE 3 - SEPTEMBER 2007
SCZXSC310DS1
16
SEMICONDUCTORS
相关型号：
ZHCS750/TA
DIODE SCHOTTKY SOT-23Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
ETC
ZHCS750TA
Rectifier Diode, Schottky, 1 Element, 0.75A, Silicon, MINIATURE PACKAGE-3Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
ZETEX
ZHCS750TC
Rectifier Diode, Schottky, 1 Element, 0.75A, Silicon, MINIATURE PACKAGE-3Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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DIODES
ZHCS750TC
Rectifier Diode, Schottky, 1 Element, 0.75A, Silicon, MINIATURE PACKAGE-3Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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ZETEX
ZHCS756
SILICON HIGH CURRENT SCHOTTKY BARRIER DIODE “SuperBAT”Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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ZETEX
ZHCS756
SOT23 SILICON HIGH CURRENT SCHOTTKY BARRIER DIODE “SuperBAT”Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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DIODES
ZHCS756TA
SURFACE MOUNT SCHOTTKY BARRIER DIODEWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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DIODES
ZHCS756TC
Rectifier Diode, Schottky, 1 Element, 0.75A, Silicon, MINIATURE PACKAGE-3Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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DIODES
ZHDC-10-63
Directional CouplerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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MINI
ZHDC-10-63+
Directional CouplerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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MINI
ZHDC-10-63-NS+
Directional CouplerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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MINI
ZHDC-10-63-S+
Directional CouplerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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MINI
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