參數(shù)資料
型號(hào): HEF4794BT
廠商: NXP Semiconductors N.V.
元件分類(lèi): 通用總線功能
英文描述: 8-stage shift-and-store register LED driver
封裝: HEF4794BP<SOT38-4 (DIP16)|<<http://www.nxp.com/packages/SOT38-4.html<1<Always Pb-free,;HEF4794BT<SOT109-1 (SO16)|<<http://www.nxp.com/packages/SOT109-1.html<1<week
文件頁(yè)數(shù): 11/18頁(yè)
文件大?。?/td> 494K
代理商: HEF4794BT
HEF4794B
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 6 — 1 September 2010
11 of 18
NXP Semiconductors
HEF4794B
8-stage shift-and-store register LED driver
Test data is given in
Table 10
.
Definitions for test circuit:
DUT - Device Under Test.
R
L
= Load resistance.
C
L
= load capacitance.
R
T
= Termination resistance should be equal to output impedance of Z
o
of the pulse generator.
V
EXT
= External voltage for measuring switching times.
Fig 10. Test circuit for measuring switching times
001aag804
DUT
V
EXT
RT
CL
RL
t
r
10 %
90 %
t
f
V
I
V
I
V
O
V
DD
V
SS
input pulse
G
Table 10.
Supply
V
DD
5 V to 15 V
Test data
Input
V
I
V
DD
V
EXT
t
PLZ
, t
PZL
V
DD
Load
C
L
50 pF
t
r
, t
f
20 ns
t
PLH
, t
PHL
open
R
L
1 k
Ω
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