HEF4794BT-Q100 [NEXPERIA]

8-stage shift-and-store register LED driverProduction;
HEF4794BT-Q100
型号: HEF4794BT-Q100
厂家: Nexperia    Nexperia
描述:

8-stage shift-and-store register LED driverProduction

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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  
©
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.  
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.  
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  

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