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TC446x Schematic ( PDF Datasheet ) - Microchip

Teilenummer TC446x
Beschreibung Logic-Input CMOS Quad Drivers
Hersteller Microchip
Logo Microchip Logo 




Gesamt 22 Seiten
TC446x Datasheet, Funktion
M TC4467/TC4468/TC4469
Logic-Input CMOS Quad Drivers
Features
• High Peak Output Current: 1.2 A
• Wide Operating Range:
- 4.5 V to 18 V
• Symmetrical Rise/Fall Times: 25 nsec
• Short, Equal Delay Times: 75 nsec
• Latch-proof. Will Withstand 500 mA Inductive
Kickback
• 3 Input Logic Choices:
- AND / NAND / AND + Inv
• ESD Protection on All Pins: 2 kV
Applications
• General Purpose CMOS Logic Buffer
• Driving All Four MOSFETs in an H-Bridge
• Direct Small Motor Driver
• Relay or Peripheral Drivers
• CCD Driver
• Pin-Switching Network Driver
Package Types
14-Pin PDIP/CERDIP
1A 1
1B 2
2A 3
2B 4
3A 5
3B 6
GND 7
TC4467
TC4468
TC4469
14 VDD
13 1Y
12 2Y
11 3Y
10 4Y
9 4B
8 4A
16-Pin SOIC (Wide)
1A
1B
2A
2B
3A
3B
GND
GND
1
2
3
4
5
6
7
8
TC4467
TC4468
TC4469
16 VDD
15 VDD
14 1Y
13 2Y
12 3Y
11 4Y
10 4B
9 4A
General Description
The TC4467/TC4468/TC4469 devices are a family of
four-output CMOS buffers/MOSFET drivers with 1.2 A
peak drive capability. Unlike other MOSFET drivers,
these devices have two inputs for each output. The
inputs are configured as logic gates: NAND (TC4467),
AND (TC4468) and AND/INV (TC4469).
The TC4467/TC4468/TC4469 drivers can continuously
source up to 250 mA into ground referenced loads.
These devices are ideal for direct driving low current
motors or driving MOSFETs in a H-bridge configuration
for higher current motor drive (see Section 5.0 for
details). Having the logic gates onboard the driver can
help to reduce component count in many designs.
The TC4467/TC4468/TC4469 devices are very robust
and highly latch-up resistant. They can tolerate up to
5 V of noise spiking on the ground line and can handle
up to 0.5 A of reverse current on the driver outputs.
The TC4467/4468/4469 devices are available in
commercial, industrial and military temperature ranges.
2002 Microchip Technology Inc.
DS21425B-page 1






TC446x Datasheet, Funktion
TC4467/TC4468/TC4469
2.0 TYPICAL PERFORMANCE CURVES (CONTINUED)
Note: TA = +25°C, with 4.5 V VDD 18 V.
140
120
100
80
60
40
20
0
1
INPUT RISING
INPUT FALLING
tD2
tD1
2 345 67
VDRIVE (V)
VDD = 12 V
8 9 10
FIGURE 2-7:
Times.
Input Amplitude vs. Delay
70
VDD = 17.5 V
60 = 470 pF
VIN
50
40
tD1
tD2
30
20
-60 -40 -20 0 20 40 60 80 100 120
°C)
FIGURE 2-10:
Propagation Delay Times
vs. Temperatures.
2.5
2.0
1.5 OUTPUTS = 0
1.0
0.5 OUTPUTS = 1
0
4 6 8 10 12 14 16 18
VSUPPLY (V)
FIGURE 2-8:
Quiescent Supply Current
vs. Supply Voltage.
3.5
VDD = 17.5 V
3.0
2.5
2.0 OUTPUTS = 0
1.5
OUTPUTS = 1
1.0
0.5
0
-60 -40 -20
0 20 40 60 80 100 120
TJUNCTION (°C)
FIGURE 2-11:
Quiescent Supply Current
vs. Temperature.
35
30
25
20
15
10
5
0
46
FIGURE 2-9:
Resistance.
TJ = +150°C
TJ = +25°C
8 10 12 14
VSUPPLY (V)
16
High-State Output
18
35
30
25
20
TJ = +150°C
15
10
TJ = +25°C
5
0
4 6 8 10 12 14 16
VSUPPLY (V)
FIGURE 2-12:
Resistance.
Low-State Output
18
DS21425B-page 6
2002 Microchip Technology Inc.

6 Page









TC446x pdf, datenblatt
TC4467/TC4468/TC4469
6.0 PACKAGING INFORMATION
6.1 Package Marking Information
14-Lead PDIP (300 mil)
XXXXXXXXXXXXXX
XXXXXXXXXXXXXX
YYWWNNN
Example:
TC4467CPD
YYWWNNN
14-Lead CERDIP (300 mil)
XXXXXXXXXXXXXX
XXXXXXXXXXXXXX
YYWWNNN
16-Lead SOIC (300 mil)
XXXXXXXXXXX
XXXXXXXXXXX
XXXXXXXXXXX
YYWWNNN
Example:
TC4468EJD
YYWWNNN
Example:
TC4469COE
YYWWNNN
Legend:
XX...X
YY
WW
NNN
Customer specific information*
Year code (last 2 digits of calendar year)
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code
Note: In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line thus limiting the number of available characters
for customer specific information.
* Standard OTP marking consists of Microchip part number, year code, week code, facility code, mask
rev#, and assembly code.
DS21425B-page 12
2002 Microchip Technology Inc.

12 Page





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