HEF4794BP,112 [NXP]
HEF4794B - 8-stage shift-and-store register LED driver DIP 16-Pin;
| 型号： | HEF4794BP,112 |
| 厂家： | 
NXP |
| 描述： | HEF4794B - 8-stage shift-and-store register LED driver DIP 16-Pin 驱动 光电二极管 接口集成电路 |
| 文件： | 总17页 (文件大小：770K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HEF4794B
8-stage shift-and-store register LED driver
Rev. 8 — 4 April 2016
Product data sheet
1. General description
The HEF4794B is an 8-stage serial shift register. It has a storage latch associated with
each stage for strobing data from the serial input (D) to the parallel LED driver outputs
(QP0 to QP7). Data is shifted on the positive-going clock (CP) transitions. The data in
each shift register stage is transferred to the storage register when the strobe input (STR)
is HIGH. Data in the storage register appears at the outputs whenever the output enable
input (OE) signal is HIGH.
Two serial outputs (QS1 and QS2) are available for cascading a number of HEF4794B
devices. Serial data is available at QS1 on positive-going clock edges to allow high-speed
operation in cascaded systems with a fast clock rise time. The same serial data is
available at QS2 on the next negative going clock edge. This is used for cascading
HEF4794B devices when the clock has a slow rise time.
It operates over a recommended VDD power supply range of 3 V to 15 V referenced to VSS
(usually ground). Unused inputs must be connected to VDD, VSS, or another input.
2. Features and benefits
Fully static operation
5 V, 10 V, and 15 V parametric ratings
Standardized symmetrical output characteristics
Specified from 40 C to +85 C and 40 C to +125 C
Complies with JEDEC standard JESD 13-B
3. Ordering information
Table 1.
Ordering information
All types operate from 40 C to +125 C.
Type number
Package
Name
Description
Version
HEF4794BT
SO16
plastic small outline package; 16 leads; body width 3.9 mm
SOT109-1
HEF4794B
Nexperia
8-stage shift-and-store register LED driver
4. Functional diagram
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Fig 1. Logic symbol
Fig 2. Functional diagram
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Fig 3. Logic diagram
HEF4794B
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 8 — 4 April 2016
2 of 17
HEF4794B
Nexperia
8-stage shift-and-store register LED driver
5. Pinning information
5.1 Pinning
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Fig 4. Pin configuration
5.2 Pin description
Table 2.
Symbol
D
Pin description
Pin
Description
serial input
2
QP0 to QP7
QS1
4, 5, 6, 7, 14, 13, 12, 11
parallel output
serial output
serial output
clock input
9
QS2
10
3
CP
STR
1
strobe input
OE
15
16
8
output enable input
supply voltage
ground (0 V)
VDD
VSS
HEF4794B
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 8 — 4 April 2016
3 of 17
HEF4794B
Nexperia
8-stage shift-and-store register LED driver
6. Functional description
Table 3.
Function table[1]
Input
Parallel output
Serial output
QS1[2]
Q6S
CP
OE
L
STR
X
D
X
X
X
L
QP0
QPn
QS2[3]
Z
Z
no change
Q7S
L
X
Z
Z
n.c.
H
H
H
H
L
no change
no change
QPn 1
QPn 1
no change
Q6S
no change
no change
no change
Q7S
H
Z
Q6S
H
H
H
L
Q6S
H
no change
no change
[1] H = HIGH voltage level; L = LOW voltage level; X = don’t care;
= LOW-to-HIGH clock transition; = HIGH-to-LOW clock transition.
[2] Q6S = the data in register stage 6 before the LOW to HIGH clock transition.
[3] Q7S = the data in register stage 7 before the HIGH to LOW clock transition.
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Fig 5. Timing diagram
HEF4794B
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 8 — 4 April 2016
4 of 17
HEF4794B
Nexperia
8-stage shift-and-store register LED driver
7. Limiting values
Table 4.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
VDD
IIK
Parameter
Conditions
Min
0.5
-
Max
+18
Unit
V
supply voltage
input clamping current
input voltage
VI < 0.5 V or VI > VDD + 0.5 V
10
mA
V
VI
0.5
-
VDD + 0.5
10
IOK
output clamping current
QSn outputs;
mA
VO < 0.5 V or VO > VDD + 0.5 V
QPn outputs; VO < 0.5 V
-
40
10
10
40
mA
mA
mA
mA
C
II
input leakage current
output current
-
-
IO
QSn outputs
QPn outputs
-
Tstg
Tamb
Ptot
storage temperature
ambient temperature
total power dissipation
65
40
+150
+125
C
Tamb = 40 C to +125 C
SO16 package
[1]
-
-
500
100
mW
mW
P
power dissipation
per output
[1] For SO16 package: Ptot derates linearly with 8 mW/K above 70 C.
8. Recommended operating conditions
Table 5.
Symbol
VDD
Recommended operating conditions
Parameter
Conditions
Min
Max
15
Unit
V
supply voltage
3
VI
input voltage
0
VDD
+125
3.75
0.5
V
Tamb
ambient temperature
input transition rise and fall rate
in free air
40
C
t/V
VDD = 5 V
VDD = 10 V
VDD = 15 V
-
-
-
s/V
s/V
s/V
0.08
HEF4794B
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 8 — 4 April 2016
5 of 17
HEF4794B
Nexperia
8-stage shift-and-store register LED driver
9. Static characteristics
Table 6.
Static characteristics
VSS = 0 V; VI = VSS or VDD; unless otherwise specified.
Symbol Parameter
Conditions
VDD
Tamb = 40 C Tamb = 25 C Tamb = 85 C Tamb = 125 C Unit
Min
Max
-
Min
Max
-
Min
Max
-
Min
Max
-
VIH
HIGH-level
input voltage
IO < 1 A
5 V
3.5
3.5
3.5
3.5
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
10 V
15 V
5 V
7.0
-
7.0
-
7.0
-
7.0
-
11.0
-
11.0
-
11.0
-
11.0
-
VIL
LOW-level
input voltage
IO < 1 A
-
1.5
3.0
4.0
-
-
1.5
3.0
4.0
-
-
1.5
3.0
4.0
-
-
1.5
3.0
4.0
-
10 V
15 V
5 V
-
-
-
-
-
-
-
-
VOH
HIGH-level
output voltage IO < 1 A
QSn outputs;
4.95
4.95
4.95
4.95
10 V
15 V
5 V
9.95
-
9.95
-
9.95
-
9.95
-
14.95
-
14.95
-
14.95
-
14.95
-
VOL
LOW-level
output voltage IO < 1 A
QSn outputs;
-
-
-
-
-
-
0.05
0.05
0.05
0.75
0.75
0.75
-
-
-
-
-
-
0.05
0.05
0.05
0.75
0.75
0.75
-
-
-
-
-
-
0.05
0.05
0.05
1.5
1.5
1.5
-
-
-
-
-
-
0.05
0.05
0.05
1.5
1.5
1.5
10 V
15 V
5 V
QPn outputs;
IO < 20 mA
10 V
15 V
IOH
HIGH-level
output current
QSn outputs
VO = 2.5 V
VO = 4.6 V
VO = 9.5 V
5 V
-
-
-
-
1.7
0.64
1.6
-
-
-
-
1.4
0.5
1.3
3.4
-
-
-
-
1.1
0.36
0.9
-
-
-
-
1.1 mA
0.36 mA
0.9 mA
2.4 mA
5 V
10 V
VO = 13.5 V 15 V
QSn outputs
4.2
2.4
IOL
LOW-level
output current
VO = 0.4 V
VO = 0.5 V
VO = 1.5 V
5 V
0.64
1.6
4.2
-
-
0.5
1.3
3.4
-
-
0.36
0.9
2.4
-
-
0.36
0.9
2.4
-
-
-
-
mA
mA
mA
10 V
15 V
15 V
-
-
-
-
-
-
II
input leakage
current
0.1
0.1
1.0
1.0 A
IOZ
OFF-state
output current is HIGH;
VO = 15 V
QPn output
5 V
10 V
15 V
5 V
10 V
15 V
-
-
-
-
-
-
-
-
2
2
-
-
-
-
-
-
-
2
2
-
15
15
-
-
-
-
-
-
-
15
15
15
A
A
A
-
2
2
-
15
IDD
supply current IO = 0 A
5
5
-
-
150
300
600
-
150 A
300 A
600 A
10
20
-
10
20
-
-
CI
input
7.5
-
pF
capacitance
HEF4794B
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 8 — 4 April 2016
6 of 17
HEF4794B
Nexperia
8-stage shift-and-store register LED driver
10. Dynamic characteristics
Table 7.
Dynamic characteristics
VSS = 0 V; Tamb = 25 C unless otherwise specified. For test circuit, see Figure 10.
Symbol Parameter
Conditions
VDD
5 V
Extrapolation formula
132 ns + (0.55 ns/pF)CL
53 ns + (0.23 ns/pF)CL
37 ns + (0.16 ns/pF)CL
92 ns + (0.55 ns/pF)CL
39 ns + (0.23 ns/pF)CL
32 ns + (0.16 ns/pF)CL
102 ns + (0.55 ns/pF)CL
44 ns + (0.23 ns/pF)CL
32 ns + (0.16 ns/pF)CL
102 ns + (0.55 ns/pF)CL
49 ns + (0.23 ns/pF)CL
37 ns + (0.16 ns/pF)CL
Min
-
Typ
160
65
Max Unit
320 ns
130 ns
[1]
tPHL
HIGH to LOW
CP to QS1;
see Figure 6
propagation delay
10 V
15 V
5 V
-
-
45
90
ns
CP to QS2;
see Figure 6
-
120
50
240 ns
100 ns
10 V
15 V
5 V
-
-
40
80
ns
[1]
tPLH
tPZL
tPLZ
LOW to HIGH
propagation delay
CP to QS1;
see Figure 6
-
130
55
260 ns
110 ns
10 V
15 V
5 V
-
-
40
80
ns
CP to QS2;
see Figure 6
-
130
60
260 ns
120 ns
10 V
15 V
5 V
-
-
45
90
ns
OFF-state to LOW
propagation delay
CP to QPn;
see Figure 6
-
240
80
480 ns
160 ns
110 ns
280 ns
140 ns
110 ns
340 ns
150 ns
120 ns
200 ns
100 ns
10 V
15 V
5 V
-
-
55
STR to QPn;
see Figure 7
-
140
70
10 V
15 V
5 V
-
-
55
LOW to OFF-state
propagation delay
CP to QPn;
see Figure 6
-
170
75
10 V
15 V
5 V
-
-
60
STR to QPn;
see Figure 7
-
100
40
10 V
15 V
5 V
-
-
35
70
ns
[2]
[2]
ten
tdis
tt
enable time
disable time
transition time
OE to QPn;
see Figure 8
-
100
55
200 ns
110 ns
100 ns
160 ns
10 V
15 V
5 V
-
-
50
OE to QPn;
see Figure 8
-
80
10 V
15 V
5 V
-
40
80
60
ns
ns
-
30
[1][3]
QS1, QS2;
see Figure 6
35 ns + (1.00 ns/pF)CL
19 ns + (0.42 ns/pF)CL
16 ns + (0.28 ns/pF)CL
-
85
170 ns
10 V
15 V
-
40
80
60
ns
ns
-
30
HEF4794B
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 8 — 4 April 2016
7 of 17
HEF4794B
Nexperia
8-stage shift-and-store register LED driver
Table 7.
Dynamic characteristics …continued
VSS = 0 V; Tamb = 25 C unless otherwise specified. For test circuit, see Figure 10.
Symbol Parameter
Conditions
VDD
5 V
Extrapolation formula
Min
60
30
24
80
60
24
60
20
15
+5
20
20
5
Typ
30
15
12
40
30
12
30
10
5
Max Unit
tW
pulse width
CP; LOW and
HIGH;
see Figure 6
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
ns
10 V
15 V
5 V
ns
ns
STR; HIGH;
see Figure 7
ns
10 V
15 V
5 V
ns
ns
tsu
set-up time
hold time
D to CP;
see Figure 9
ns
10 V
15 V
5 V
ns
ns
th
D to CP;
see Figure 9
15
5
ns
10 V
15 V
5 V
ns
5
ns
fclk(max)
maximum clock
frequency
CP; see Figure 6
10
22
28
MHz
MHz
MHz
10 V
15 V
11
14
[1] The typical values of the propagation delay and transition times are calculated from the extrapolation formulas shown (CL in pF).
[2] ten is the same as tPZL and tdis is the same as tPLZ
[3] tt is the same as tTLH and tTHL
Table 8.
Dynamic power dissipation
PD can be calculated from the formulas shown. VSS = 0 V; tr = tf 20 ns; Tamb = 25 C.
Symbol Parameter
VDD
Typical formula
Where
PD
dynamic power dissipation 5 V
PD = 1200 fi + (fo CL) VDD2 W
fi = input frequency in MHz;
fo = output frequency in MHz;
CL = output load capacitance in pF;
(fo CL) = sum of the outputs;
10 V PD = 5550 fi + (fo CL) VDD2 W
15 V PD = 15000 fi + (fo CL) VDD2 W
VDD = supply voltage in V.
HEF4794B
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 8 — 4 April 2016
8 of 17
HEF4794B
Nexperia
8-stage shift-and-store register LED driver
11. Waveforms
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Parallel output measurement points are given in Table 9.
OL and VOH are typical output voltage levels that occur with the output load.
V
Fig 6. Propagation delay clock (CP) to output (QPn, QS1, QS2), clock pulse width and maximum clock
frequency
Table 9.
Supply
VDD
Measurement points
Input
VM
Output
VM
VX
VY
5 V to 15 V
0.5VDD
0.5VDD
0.1VO
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Measurement points are given in Table 9.
OL is the typical output voltage level that occurs with the output load.
V
Fig 7. Strobe (STR) to output (QPn) propagation delays and the strobe pulse width
HEF4794B
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 8 — 4 April 2016
9 of 17
HEF4794B
Nexperia
8-stage shift-and-store register LED driver
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Measurement points are given in Table 9.
VOL is the typical output voltage level that occurs with the output load.
Fig 8. Enable and disable times for input OE
9
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9
0
9
9
66
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VX
VX
W
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Measurement points are given in Table 9.
The shaded areas indicate when the input is permitted to change for predictable output performance.
VOL is the typical output voltage level that occurs with the output load.
Fig 9. Set-up and hold times for the data input (D)
HEF4794B
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 8 — 4 April 2016
10 of 17
HEF4794B
Nexperia
8-stage shift-and-store register LED driver
9
,
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66
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I
U
9
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Test data is given in Table 10.
Definitions for test circuit:
DUT - Device Under Test.
RL = Load resistance.
CL = load capacitance.
RT = Termination resistance should be equal to output impedance of Zo of the pulse generator.
VEXT = External voltage for measuring switching times.
Fig 10. Test circuit for measuring switching times
Table 10. Test data
Supply
VDD
Input
VI
VEXT
Load
CL
tr, tf
tPLZ, tPZL
VDD
tPLH, tPHL
RL
5 V to 15 V
VDD
20 ns
open
50 pF
1 k
HEF4794B
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 8 — 4 April 2016
11 of 17
HEF4794B
Nexperia
8-stage shift-and-store register LED driver
12. Application information
Application example: serial-to-parallel data converting LED drivers.
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HEF4794B
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 8 — 4 April 2016
12 of 17
HEF4794B
Nexperia
8-stage shift-and-store register LED driver
13. Package outline
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Fig 12. Package outline SOT109-1 (SO16)
HEF4794B
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 8 — 4 April 2016
13 of 17
HEF4794B
Nexperia
8-stage shift-and-store register LED driver
14. Revision history
Table 11. Revision history
Document ID
HEF4794B v.8
Modifications:
HEF4794B v.7
Modifications:
Release date
20160404
Data sheet status
Change notice
Supersedes
Product data sheet
-
HEF4794B v.7
• Type number HEF4794BP (SOT38-4) removed.
20111116 Product data sheet
-
HEF4794B v.6
• Section Applications removed
• Table 6:
–
IOH minimum values changed to maximum
–
added the unit pF for CI
HEF4794B v.6
HEF4794B v.5
HEF4794B v.4
HEF4794B v.3
HEF4794B v.2
HEF4794B v.1
20100901
20100402
20091222
20080812
19990630
19940701
Product data sheet
Product data sheet
Product data sheet
Product data sheet
Product specification
Product specification
-
-
-
-
-
-
HEF4794B v.5
HEF4794B v.4
HEF4794B v.3
HEF4794B v.2
HEF4794B v.1
-
HEF4794B
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 8 — 4 April 2016
14 of 17
HEF4794B
Nexperia
8-stage shift-and-store register LED driver
15. Legal information
15.1 Data sheet status
Document status[1][2]
Product status[3]
Development
Definition
Objective [short] data sheet
This document contains data from the objective specification for product development.
This document contains data from the preliminary specification.
This document contains the product specification.
Preliminary [short] data sheet Qualification
Product [short] data sheet Production
[1]
[2]
[3]
Please consult the most recently issued document before initiating or completing a design.
The term ‘short data sheet’ is explained in section “Definitions”.
The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status
information is available on the Internet at URL http://www.nexperia.com.
Suitability for use — Nexperia products are not designed,
15.2 Definitions
authorized or warranted to be suitable for use in life support, life-critical or
safety-critical systems or equipment, nor in applications where failure or
malfunction of a Nexperia product can reasonably be expected
to result in personal injury, death or severe property or environmental
damage. Nexperia and its suppliers accept no liability for
inclusion and/or use of Nexperia products in such equipment or
applications and therefore such inclusion and/or use is at the customer’s own
risk.
Draft — The document is a draft version only. The content is still under
internal review and subject to formal approval, which may result in
modifications or additions. Nexperia does not give any
representations or warranties as to the accuracy or completeness of
information included herein and shall have no liability for the consequences of
use of such information.
Short data sheet — A short data sheet is an extract from a full data sheet
with the same product type number(s) and title. A short data sheet is intended
for quick reference only and should not be relied upon to contain detailed and
full information. For detailed and full information see the relevant full data
sheet, which is available on request via the local Nexperia sales
office. In case of any inconsistency or conflict with the short data sheet, the
full data sheet shall prevail.
Applications — Applications that are described herein for any of these
products are for illustrative purposes only. Nexperia makes no
representation or warranty that such applications will be suitable for the
specified use without further testing or modification.
Customers are responsible for the design and operation of their applications
and products using Nexperia products, and Nexperia
accepts no liability for any assistance with applications or customer product
design. It is customer’s sole responsibility to determine whether the Nexperia
product is suitable and fit for the customer’s applications and
products planned, as well as for the planned application and use of
customer’s third party customer(s). Customers should provide appropriate
design and operating safeguards to minimize the risks associated with their
applications and products.
Product specification — The information and data provided in a Product
data sheet shall define the specification of the product as agreed between
Nexperia and its customer, unless Nexperia and
customer have explicitly agreed otherwise in writing. In no event however,
shall an agreement be valid in which the Nexperia product is
deemed to offer functions and qualities beyond those described in the
Product data sheet.
Nexperia does not accept any liability related to any default,
damage, costs or problem which is based on any weakness or default in the
customer’s applications or products, or the application or use by customer’s
third party customer(s). Customer is responsible for doing all necessary
testing for the customer’s applications and products using Nexperia
products in order to avoid a default of the applications and
15.3 Disclaimers
Limited warranty and liability — Information in this document is believed to
be accurate and reliable. However, Nexperia does not give any
representations or warranties, expressed or implied, as to the accuracy or
completeness of such information and shall have no liability for the
consequences of use of such information. Nexperia takes no
responsibility for the content in this document if provided by an information
source outside of Nexperia.
the products or of the application or use by customer’s third party
customer(s). Nexperia does not accept any liability in this respect.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper)
operation of the device at these or any other conditions above those given in
the Recommended operating conditions section (if present) or the
Characteristics sections of this document is not warranted. Constant or
repeated exposure to limiting values will permanently and irreversibly affect
the quality and reliability of the device.
In no event shall Nexperia be liable for any indirect, incidental,
punitive, special or consequential damages (including - without limitation - lost
profits, lost savings, business interruption, costs related to the removal or
replacement of any products or rework charges) whether or not such
damages are based on tort (including negligence), warranty, breach of
contract or any other legal theory.
Terms and conditions of commercial sale — Nexperia
products are sold subject to the general terms and conditions of commercial
sale, as published at http://www.nexperia.com/profile/terms, unless otherwise
agreed in a valid written individual agreement. In case an individual
agreement is concluded only the terms and conditions of the respective
agreement shall apply. Nexperia hereby expressly objects to
applying the customer’s general terms and conditions with regard to the
purchase of Nexperia products by customer.
Notwithstanding any damages that customer might incur for any reason
whatsoever, Nexperia’s aggregate and cumulative liability towards
customer for the products described herein shall be limited in accordance
with the Terms and conditions of commercial sale of Nexperia.
Right to make changes — Nexperia reserves the right to make
changes to information published in this document, including without
limitation specifications and product descriptions, at any time and without
notice. This document supersedes and replaces all information supplied prior
to the publication hereof.
No offer to sell or license — Nothing in this document may be interpreted or
construed as an offer to sell products that is open for acceptance or the grant,
conveyance or implication of any license under any copyrights, patents or
other industrial or intellectual property rights.
HEF4794B
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 8 — 4 April 2016
15 of 17
HEF4794B
Nexperia
8-stage shift-and-store register LED driver
Export control — This document as well as the item(s) described herein
may be subject to export control regulations. Export might require a prior
authorization from competent authorities.
Nexperia’s specifications such use shall be solely at customer’s
own risk, and (c) customer fully indemnifies Nexperia for any
liability, damages or failed product claims resulting from customer design and
use of the product for automotive applications beyond Nexperia’s
standard warranty and Nexperia’s product specifications.
Non-automotive qualified products — Unless this data sheet expressly
states that this specific Nexperia product is automotive qualified,
the product is not suitable for automotive use. It is neither qualified nor tested
in accordance with automotive testing or application requirements. Nexperia
accepts no liability for inclusion and/or use of
Translations — A non-English (translated) version of a document is for
reference only. The English version shall prevail in case of any discrepancy
between the translated and English versions.
non-automotive qualified products in automotive equipment or applications.
In the event that customer uses the product for design-in and use in
automotive applications to automotive specifications and standards, customer
(a) shall use the product without Nexperia’s warranty of the
product for such automotive applications, use and specifications, and (b)
whenever customer uses the product for automotive applications beyond
15.4 Trademarks
Notice: All referenced brands, product names, service names and trademarks
are the property of their respective owners.
16. Contact information
For more information, please visit: http://www.nexperia.com
For sales office addresses, please send an email to: salesaddresses@nexperia.com
HEF4794B
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 8 — 4 April 2016
16 of 17
HEF4794B
Nexperia
8-stage shift-and-store register LED driver
17. Contents
1
2
3
4
General description. . . . . . . . . . . . . . . . . . . . . . 1
Features and benefits . . . . . . . . . . . . . . . . . . . . 1
Ordering information. . . . . . . . . . . . . . . . . . . . . 1
Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2
5
5.1
5.2
Pinning information. . . . . . . . . . . . . . . . . . . . . . 3
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3
6
Functional description . . . . . . . . . . . . . . . . . . . 4
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 5
Recommended operating conditions. . . . . . . . 5
Static characteristics. . . . . . . . . . . . . . . . . . . . . 6
Dynamic characteristics . . . . . . . . . . . . . . . . . . 7
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Application information. . . . . . . . . . . . . . . . . . 12
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 13
Revision history. . . . . . . . . . . . . . . . . . . . . . . . 14
7
8
9
10
11
12
13
14
15
Legal information. . . . . . . . . . . . . . . . . . . . . . . 15
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 15
Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 16
15.1
15.2
15.3
15.4
16
17
Contact information. . . . . . . . . . . . . . . . . . . . . 16
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
© Nexperia B.V. 2017. All rights reserved
For more information, please visit: http://www.nexperia.com
For sales office addresses, please send an email to: salesaddresses@nexperia.com
Date of release: 04 April 2016
相关型号：
HEF4794BT-T
IC LED DISPLAY DRIVER, DSO16, 3.90 MM, PLASTIC, MS-012, SOT109-1, SOP-16, Display Driver
NXP
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