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PDF TC4468 Data sheet ( Hoja de datos )
| Número de pieza | TC4468 | |
| Descripción | (TC4467 - TC4469) LOGIC-INPUT CMOS QUAD DRIVERS | |
| Fabricantes | TelCom Semiconductor | |
| Logotipo |  |
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1TC4467
TC4468
TC4469
LOGIC-INPUT CMOS QUAD DRIVERS
2
FEATURES
s High Peak Output Current ............................... 1.2A
s Wide Operating Range ............................ 4.5 to 18V
s Symmetrical Rise and Fall Times ................ 25nsec
s Short, Equal Delay Times ............................ 75nsec
s Latchproof! Withstands 500mA Inductive Kickback
s 3 Input Logic Choices
— AND / NAND / AND + Inv
s 2kV ESD Protection on All Pins
APPLICATIONS
s General-Purpose CMOS Logic Buffer
s Driving All Four MOSFETs in an H-Bridge
s Direct Small Motor Driver
s Relay or Peripheral Drivers
s CCD Driver
s Pin-Switching Network Driver
GENERAL DESCRIPTION
The TC446X family of four-output CMOS buffer/drivers
are an expansion from our earlier single- and dual-output
drivers. Each driver has been equipped with a two-input
logic gate for added flexibility.
The TC446X drivers can source up to 250 mA into loads
referenced to ground. Heavily loaded clock lines, coaxial
cables, and piezoelectric transducers can all be easily
driven with the 446X series drivers. The only limitation on
loading is that total power dissipation in the IC must be kept
within the power dissipation limits of the package.
The TC446X series will not latch under any conditions
within their power and voltage ratings. They are not subject
to damage when up to 5V of noise spiking (either polarity)
occurs on the ground line. They can accept up to half an amp
of inductive kickback current (either polarity) into their out-
puts without damage or logic upset. In addition, all terminals
are protected against ESD to at least 2000V.
3
4
LOGIC DIAGRAMS
ORDERING INFORMATION
Part No.
Package
Temp. Range
TC446xCOE
TC446xCPD
TC446xEJD
TC446xMJD
16-Pin SOIC (Wide)
14-Pin Plastic DIP
14-Pin CerDIP
14-Pin CerDIP
0° to +70°C
0° to +70°C
– 40° to +85°C
– 55° to +125°C
x indicates a digit must be added in this position to define the device
input configuration: TC446x — 7
NAND
8 AND
9 AND with INV
5
6
TC4467
1
1A
2
1B
3
2A
4
2B
5
3A
6
3B
8
4A
9
4B
VDD
14
7
GND
13 1Y
12 2Y
11 3Y
10 4Y
TC4468
1
1A
2
1B
3
2A
4
2B
5
3A
6
3B
8
4A
9
4B
VDD
14
7
GND
TELCOM SEMICONDUCTOR, INC.
13 1Y
12 2Y
11 3Y
10 4Y
TC4469
1
1A
2
1B
3
2A
4
2B
5
3A
6
3B
8
4A
9
4B
VDD
14
7
GND
TC446X
VDD
13 1Y
12 2Y
OUTPUT
7
11 3Y
10 4Y
8
TC4467/8/9-6 10/21/96
4-261
1 page  
LOGIC-INPUT CMOS
QUAD DRIVERS
TC4467
TC4468
TC4469
1
Transition power dissipation arises in the
complementary configuration (TC446X) because the
output stage N-channel and P-channel MOS transistors
are ON simultaneously for a very short period when the
output changes. The transition power dissipation is
approximately:
PT = f VS (10 ϫ 10–9).
Package power dissipation is the sum of load, quies-
cent and transition power dissipations. An example shows
the relative magnitude for each term:
C = 1000 pF capacitive load
VS = 15V
D = 50%
f = 200 kHz
PD = Package Power Dissipation = PL + PQ + PT
= 45 mW + 35 mW + 30 mW = 110 mW.
Maximum operating temperature:
TJ – θJA (PD) = 141°C,
where: TJ = Maximum allowable junction temperature
(+150°C)
θJA = Junction-to-ambient thermal resistance
(83.3°C/W) 14-pin plastic package.
NOTE: Ambient operating temperature should not exceed +85°C for
"EJD" device or +125°C for "MJD" device.
2
3
4
VDD
1 µF FILM
1A 1
1B 2
2A 3
2B 4
3A 5
3B 6
4A 8
4B 9
0.1 µF CERAMIC
14
13 VOUT
470 pF
12
11
10
7
+5V
INPUT
(A, B)
0V
VDD
OUTPUT
0V
10%
90%
tD1
tR
10%
90%
90%
tD2 tF
10%
Input: 100 kHz, square wave,
tRISE = tFALL ≤ 10nsec
Figure 1. Switching Time Test Circuit
5
6
7
TELCOM SEMICONDUCTOR, INC.
8
4-265
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet TC4468.PDF ] | |
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