HEF4794BT-Q100 [NEXPERIA]
8-stage shift-and-store register LED driverProduction;型号: | HEF4794BT-Q100 |
厂家: | Nexperia |
描述: | 8-stage shift-and-store register LED driverProduction |
文件: | 总14页 (文件大小:231K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
HEF4794B-Q100
8-stage shift-and-store register LED driver
Rev. 2 — 7 November 2018
Product data sheet
1. General description
The HEF4794B-Q100 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-Q100
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-Q100 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.
This product has been qualified to the Automotive Electronics Council (AEC) standard Q100
(Grade 1) and is suitable for use in automotive applications.
2. Features and benefits
•
Automotive product qualification in accordance with AEC-Q100 (Grade 1)
Specified from -40 °C to +85 °C and from -40 °C to +125 °C
•
•
•
•
•
Fully static operation
5 V, 10 V, and 15 V parametric ratings
Standardized symmetrical output characteristics
ESD protection:
•
•
•
MIL-STD-883, method 3015 exceeds 2000 V
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V (C = 200 pF; R = 0 Ω)
•
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-Q100
SO16
plastic small outline package; 16 leads; body width 3.9 mm
SOT109-1
Nexperia
HEF4794B-Q100
8-stage shift-and-store register LED driver
4. Functional diagram
3
1
CP
STR
QS1
9
QS2
QP0
QP1
10
4
2
D
10
9
8-STAGE SHIFT
REGISTER
QS2
QS1
3
5
CP
QP2
QP3
QP4
QP5
QP6
QP7
6
2
D
1
7
8-BIT STORAGE
REGISTER
STR
OE
14
13
12
11
15
OPEN-DRAIN
OUTPUTS
4
5
6
7
14 13 12 11
OE
15
QP0
QP2
QP4
QP6
QP1
QP3
QP5
QP7
001aag798
001aaf111
Fig. 1. Logic symbol
Fig. 2. Functional diagram
STAGE 0
STAGES 1 TO 6
STAGE 7
D
D
Q
D
Q
D
Q
QS1
CP
CP
D
Q
QS2
FF 0
FF 7
CP
CP
LE
LATCH
D
Q
D
Q
LE
LE
LATCH 0
LATCH 7
STR
OE
QP0
QP2
QP4
QP6
aaa-029301
QP1
QP3
QP5
QP7
Fig. 3. Logic diagram
©
HEF4794B_Q100
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 2 — 7 November 2018
2 / 14
Nexperia
HEF4794B-Q100
8-stage shift-and-store register LED driver
5. Pinning information
5.1. Pinning
HEF4794B
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
STR
D
V
DD
OE
CP
QP4
QP5
QP6
QP7
QS2
QS1
QP0
QP1
QP2
QP3
V
SS
001aag800
Fig. 4. Pin configuration
5.2. Pin description
Table 2. Pin description
Symbol
Pin
Description
D
2
serial input
QP0 to QP7
QS1
QS2
CP
4, 5, 6, 7, 14, 13, 12, 11
parallel output (open-drain)
serial output
9
10
3
serial output
clock input
STR
OE
1
strobe input
15
16
8
output enable input
supply voltage
ground (0 V)
VDD
VSS
©
HEF4794B_Q100
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 2 — 7 November 2018
3 / 14
Nexperia
HEF4794B-Q100
8-stage shift-and-store register LED driver
6. Functional description
Table 3. Function table
H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state;
↑ = LOW-to-HIGH clock transition; ↓ = HIGH-to-LOW clock transition.
Input
Parallel output
Serial output
QS1[1]
Q6S
CP
↑
OE
L
STR
X
D
X
X
X
L
QP0
QPn
QS2[2]
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] Q6S = the data in register stage 6 before the LOW to HIGH clock transition.
[2] Q7S = the data in register stage 7 before the HIGH to LOW clock transition.
clock input
data input
strobe input
output enable
input
internal Q0S
(FF0)
Z-state
Z-state
QP0 output
internal Q6S
(FF6)
QP6 output
serial QS1
output
serial QS2
output
001aag801
Fig. 5. Timing diagram
©
HEF4794B_Q100
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 2 — 7 November 2018
4 / 14
Nexperia
HEF4794B-Q100
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. Recommended operating conditions
Symbol
VDD
Parameter
Conditions
Min
Max
15
Unit
V
supply voltage
3
0
VI
input voltage
VDD
+125
3.75
0.5
V
Tamb
Δt/ΔV
ambient temperature
input transition rise and fall rate
in free air
-40
-
°C
VDD = 5 V
VDD = 10 V
VDD = 15 V
μs/V
μs/V
μs/V
-
-
0.08
©
HEF4794B_Q100
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 2 — 7 November 2018
5 / 14
Nexperia
HEF4794B-Q100
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 μA
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 |IO| < 1 μA
voltage
-
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 μA
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 μA
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 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
VO = 4.6 V 5 V
VO = 9.5 V 10 V
VO = 13.5 V 15 V
-4.2
-2.4
IOL
LOW-level
QSn outputs
output current
VO = 0.4 V 5 V
VO = 0.5 V 10 V
VO = 1.5 V 15 V
15 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
-
-
-
-
-
-
II
input leakage
current
±0.1
±0.1
±1.0
±1.0 μA
IOZ
OFF-state
output current is HIGH;
VO = 15 V
QPn output
5 V
-
-
-
-
-
-
-
2
2
-
-
-
-
-
-
-
2
2
-
15
15
-
-
-
-
-
-
-
15 μA
15 μA
15 μA
150 μA
300 μA
600 μA
10 V
15 V
5 V
-
2
2
-
15
IDD
supply current IO = 0 A
5
5
-
-
150
300
600
-
10 V
15 V
-
10
20
-
10
20
-
-
CI
input
7.5
-
pF
capacitance
©
HEF4794B_Q100
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 2 — 7 November 2018
6 / 14
Nexperia
HEF4794B-Q100
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 Fig. 10.
Symbol Parameter
Conditions
VDD
5 V
Extrapolation formula
[1] 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
[1] 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
tPHL
tPLH
tPZL
tPLZ
HIGH to LOW
propagation delay
CP to QS1;
see Fig. 6
-
-
10 V
15 V
5 V
-
45
90
ns
CP to QS2;
see Fig. 6
-
120
50
240 ns
100 ns
10 V
15 V
5 V
-
-
40
80
ns
LOW to HIGH
propagation delay
CP to QS1;
see Fig. 6
-
130
55
260 ns
110 ns
10 V
15 V
5 V
-
-
40
80
ns
CP to QS2;
see Fig. 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 Fig. 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 Fig. 7
-
140
70
10 V
15 V
5 V
-
-
55
LOW to OFF-state
propagation delay
CP to QPn;
see Fig. 6
-
170
75
10 V
15 V
5 V
-
-
60
STR to QPn;
see Fig. 7
-
100
40
10 V
15 V
5 V
-
-
35
70
ns
ten
tdis
tt
enable time
disable time
transition time
pulse width
OE to QPn;
see Fig. 8
[2]
[2]
-
100
55
200 ns
110 ns
100 ns
160 ns
10 V
15 V
5 V
-
-
50
OE to QPn;
see Fig. 8
-
80
10 V
15 V
-
40
80
60
ns
ns
-
30
QS1, QS2;
see Fig. 6
5 V [1][3] 35 ns + (1.00 ns/pF)CL
-
85
170 ns
10 V
15 V
5 V
19 ns + (0.42 ns/pF)CL
16 ns + (0.28 ns/pF)CL
-
40
80
60
-
ns
ns
ns
ns
ns
ns
ns
ns
-
30
tW
CP LOW and
HIGH; see Fig. 6
60
30
24
80
60
24
30
10 V
15 V
5 V
15
-
12
-
STR HIGH;
see Fig. 7
40
-
10 V
15 V
30
-
12
-
©
HEF4794B_Q100
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 2 — 7 November 2018
7 / 14
Nexperia
HEF4794B-Q100
8-stage shift-and-store register LED driver
Symbol Parameter
Conditions
D to CP; see Fig. 9 5 V
10 V
15 V
D to CP; see Fig. 9 5 V
VDD
Extrapolation formula
Min
60
20
15
+5
20
20
5
Typ
30
10
5
Max Unit
tsu
set-up time
-
-
-
-
-
-
-
-
-
ns
ns
ns
th
hold time
-15
5
ns
10 V
15 V
5 V
ns
5
ns
fclk(max)
maximum clock
frequency
CP; see Fig. 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 = 1 200 x fi + Σ(fo x CL) x VDD2 μW
fi = input frequency in MHz;
fo = output frequency in MHz;
CL = output load capacitance in pF;
Σ(fo × CL) = sum of the outputs;
VDD = supply voltage in V.
10 V PD = 5 550 x fi + Σ(fo x CL) x VDD2 μW
15 V PD = 15 000 x fi + Σ(fo x CL) x VDD2 μW
10.1. Waveforms and test circuit
1/f
clk(max)
V
I
V
CP input
M
t
V
SS
t
t
W
W
t
PLZ
PZL
V
DD
V
Y
QPn output
QS1 output
V
X
V
OL
t
t
PHL
PLH
V
OH
90 %
V
M
10 %
V
OL
t
t
THL
TLH
t
t
PHL
PLH
V
OH
90 %
V
M
QS2 output
10 %
TLH
V
OL
t
t
THL
001aag222
Parallel output measurement points are given in Table 9.
VOL and VOH are typical output voltage levels that occur with the output load.
Fig. 6. Propagation delay clock (CP) to output (QPn, QS1, QS2), clock pulse width and maximum clock frequency
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HEF4794B_Q100
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 2 — 7 November 2018
8 / 14
Nexperia
HEF4794B-Q100
8-stage shift-and-store register LED driver
Table 9. Measurement points
Supply
VDD
Input
VM
Output
VM
VX
VY
5 V to 15 V
0.5VDD
0.5VDD
0.1VO
0.9VO
V
I
V
M
CP input
V
V
SS
V
I
STR input
V
M
SS
t
W
t
t
PZL
PLZ
V
DD
V
Y
QPn output
V
X
V
OL
001aag802
Measurement points are given in Table 9.
VOL is the typical output voltage level that occurs with the output load.
Fig. 7. Strobe (STR) to output (QPn) propagation delays and the strobe pulse width
V
I
OE input
V
M
V
SS
t
t
PZL
PLZ
V
DD
V
Y
output
LOW to OFF-state
OFF-state to LOW
V
X
V
OL
outputs
enabled
outputs
disabled
outputs
enabled
001aag803
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
V
I
CP input
V
M
V
SS
t
t
su
su
t
h
t
h
V
I
V
D input
M
V
SS
DD
V
QPn output
V
OL
001aag805
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_Q100
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 2 — 7 November 2018
9 / 14
Nexperia
HEF4794B-Q100
8-stage shift-and-store register LED driver
V
I
90 %
input pulse
10 %
V
SS
t
t
f
r
V
EXT
V
DD
R
L
V
V
O
I
G
DUT
C
L
R
T
001aag804
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 kΩ
11. Application information
V
DD
V
DD
QP0
OE
QP7
QP0
QP7
D
S2
D
S2
HEF4794B
HEF4794B
STR
CP
OE
STR
CP
PWM
dimmer input
CONTROL
AND
SYNC
CIRCUITRY
001aag806
data
clock
from remote
control panel
Fig. 11. Application example: serial-to-parallel data converting LED drivers
©
HEF4794B_Q100
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 2 — 7 November 2018
10 / 14
Nexperia
HEF4794B-Q100
8-stage shift-and-store register LED driver
12. Package outline
SO16: plastic small outline package; 16 leads; body width 3.9 mm
SOT109-1
D
E
A
X
v
c
y
H
M
A
E
Z
16
9
Q
A
2
A
(A )
3
A
1
pin 1 index
θ
L
p
L
1
8
e
w
M
detail X
b
p
0
2.5
scale
5 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
A
(1)
(1)
(1)
UNIT
A
A
A
b
c
D
E
e
H
E
L
L
p
Q
v
w
y
Z
θ
1
2
3
p
max.
0.25
0.10
1.45
1.25
0.49
0.36
0.25
0.19
10.0
9.8
4.0
3.8
6.2
5.8
1.0
0.4
0.7
0.6
0.7
0.3
mm
1.27
0.05
1.05
0.041
1.75
0.25
0.01
0.25
0.1
0.25
0.01
8o
0o
0.0100
0.0075
0.010 0.057
0.004 0.049
0.019
0.014
0.39
0.38
0.16
0.15
0.244
0.228
0.039 0.028
0.016 0.020
0.028
0.012
inches
0.069
0.01 0.004
Note
1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included.
REFERENCES
OUTLINE
EUROPEAN
PROJECTION
ISSUE DATE
VERSION
IEC
JEDEC
JEITA
99-12-27
03-02-19
SOT109-1
076E07
MS-012
Fig. 12. Package outline SOT109-1 (SO16)
©
HEF4794B_Q100
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 2 — 7 November 2018
11 / 14
Nexperia
HEF4794B-Q100
8-stage shift-and-store register LED driver
13. Revision history
Table 11. Revision history
Document ID
Release date
20181107
Data sheet status
Change notice
Supersedes
HEF4794B_Q100 v.2
Modifications:
Product data sheet
-
HEF4794B _Q100 v.1
•
The format of this data sheet has been redesigned to comply with the identity guidelines of
Nexperia.
•
•
Legal texts have been adapted to the new company name where appropriate.
Fig. 5 corrected.
HEF4794B _Q100 v.1
20120807
Product data sheet
-
-
©
HEF4794B_Q100
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 2 — 7 November 2018
12 / 14
Nexperia
HEF4794B-Q100
8-stage shift-and-store register LED driver
equipment, nor in applications where failure or malfunction of an 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.
14. Legal information
Data sheet status
Quick reference data — The Quick reference data is an extract of the
product data given in the Limiting values and Characteristics sections of this
document, and as such is not complete, exhaustive or legally binding.
Document status Product
Definition
[1][2]
status [3]
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.
Objective [short]
data sheet
Development
This document contains data from
the objective specification for
product development.
Preliminary [short]
data sheet
Qualification
Production
This document contains data from
the preliminary specification.
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 [short]
data sheet
This document contains the product
specification.
[1] Please consult the most recently issued document before initiating or
completing a design.
[2] The term 'short data sheet' is explained in section "Definitions".
[3] 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 https://www.nexperia.com.
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 the products or of the application or
use by customer’s third party customer(s). Nexperia does not accept any
liability in this respect.
Definitions
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.
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.
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.
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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.
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.
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.
Disclaimers
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.
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.
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.
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.
Trademarks
Notice: All referenced brands, product names, service names and
trademarks are the property of their respective owners.
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.
Suitability for use in automotive applications — This Nexperia product
has been qualified for use in automotive applications. Unless otherwise
agreed in writing, the product is not designed, authorized or warranted to
be suitable for use in life support, life-critical or safety-critical systems or
©
HEF4794B_Q100
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 2 — 7 November 2018
13 / 14
Nexperia
HEF4794B-Q100
8-stage shift-and-store register LED driver
Contents
1. General description......................................................1
2. Features and benefits.................................................. 1
3. Ordering information....................................................1
4. Functional diagram.......................................................2
5. Pinning information......................................................3
5.1. Pinning.........................................................................3
5.2. Pin description.............................................................3
6. Functional description................................................. 4
7. Limiting values............................................................. 5
8. Recommended operating conditions..........................5
9. Static characteristics....................................................6
10. Dynamic characteristics............................................ 7
10.1. Waveforms and test circuit........................................ 8
11. Application information............................................10
12. Package outline........................................................ 11
13. Revision history........................................................12
14. Legal information......................................................13
© Nexperia B.V. 2018. 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: 7 November 2018
©
HEF4794B_Q100
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 2 — 7 November 2018
14 / 14
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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