Microchip Technology TC4405EPA, TC4405EOA, TC4405CPA, TC4405COA, TC4405MJA Datasheet
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8
6
5
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OP
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8
6
5
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8
/SOIC/C
P
1.5A Dual Open-Drain MOSFET Drivers
TC4404/TC4405
Features
• Independently Programmable Rise and Fall
Times
• Low Output Impedance – 7Ω Typ.
• High Speed t
, tF – <30nsec with 1000pF Load
R
• Short Delay Times – <30nsec
• Wide Operating Range
- 4.5V to 18V
• Latch-Up Protected: Will Withstand > 500mA
Reverse Current (Either Polarity)
• Input Withstands Negative Swings Up to -5V
Applications
• Motor Controls
• Driving Bipolar Transistors
• Driver for Non-overlapping Totem Poles
• Reach-Up/Reach-Down Driver
Device Selection Table
Part Number Package Temp. Range
TC4404COA 8-Pin SOIC 0°C to +70°C
TC4404CPA 8-Pin PDIP 0°C to +70°C
TC4404EOA 8-Pin SOIC -40°C to +85°C
TC4404EPA 8-Pin PDIP -40°C to +85°C
TC4404MJA 8-Pin CERDIP -55°C to +125°C
TC4405COA 8-Pin SOIC 0°C to +70°C
TC4405CPA 8-Pin PDIP 0°C to +70°C
TC4405EOA 8-Pin SOIC -40°C to +85°C
TC4405EPA 8-Pin PDIP -40°C to +85°C
TC4405MJA 8-Pin CERDIP -55°C to +125°C
General Description
The TC4404/TC4405 are CMOS buffer-drivers
constructed with comple mentary MOS ou tputs, wher e
the drains of the totem-pole output have been left
separated so that individual connections can be made
to the pull-up and pull-down sec tions of the o utput. This
allows the inserti on of d rain - cu rren t-li mi tin g res is to rs in
the pull-up and/ or pull-do wn sectio ns, allo wing the user
to define the r at es of r is e an d fa ll fo r a capac i ti ve lo ad ;
or a reduced outpu t s w ing , if dri vi ng a resistive load, or
to limit base current, when driving a bipolar transistor.
Minimum rise and fall times, with no resistors, will be
less than 30nsec for a 1000pF load.
For driving MOSFETs in motor-control applications,
where slow-ON/fast-OFF operation is desired, these
devices are superior to the previously used technique
of adding a diode-resistor combination between the
driver output and the MOSFET, because they allow
accurate control of tu rn-ON, while maintaining fast turnOFF and maximum noise immu nity for an OFF device.
When used to drive bipolar transistors, these drivers
maintain the high speeds common to other Microchip
drivers. They allow insertion of a base current-limiting
resistor, while pr ovidi ng a se parate half-o utpu t for f ast
turn-OFF. By proper positioning of the resistor, either
npn or pnp transistors can be driven.
For driving many loads in low-power regimes, these
drivers, beca use th ey el imi nate shoot-through currents
in the output stage, require significantly less power at
higher frequencies, and can be helpful in meeting
low-power budgets.
Package Type
-Pin PDIP
V
DD
1
2
IN A
IN B
GND
V
IN A
IN B
DD
TC4404
3
4
18
27
TC4405
36
45
A T
A BOTT
B T
B BOTT
A TOP
A BOTTOM
B TOP
B BOTTOMGND
2002 Microchip Technology Inc. DS21418B-page 1
ERDI
V
DD
1
2
IN A
IN B
GND
V
IN A
IN B
DD
TC4404
3
4
18
27
TC4405
36
45
A T
A BOTT
B T
B BOTT
A TOP
A BOTTOM
B TOP
B BOTTOMGND
TC4404/TC4405
Because neither drain i n an outp ut is depen dent o n the
other, these devices can also be used as open-drain
buffer/drivers where both drains are available in one
device, thus minimizing chip count. Unused open
drains shou ld be returned to the supply rail that their
device sources are connected to (pull-downs to
ground, pul l-ups to V
), to prevent static damage. In
DD
addition, in situations where timing resistors or other
means of limiting crossover currents are used, like
drains may be paralleled for gr eater current carrying
capacity.
Functional Block Diagram
300 mV
2 (3)
Input
4.7V
These devices are built to operate in the mos t demanding electrical enviro nments. They will not latch up under
any conditions within their power and voltage ratings;
they are not subje ct to d am age when up to 5V of noise
spiking of either polarity occurs on their ground pin; an d
they can accept, without damage or logic upset, up to
1/2 amp of reverse current (of either polarity) being
forced back into their outputs. All terminals are fully
protected against up to 2kV of electrostatic discharge.
1
V
DD
TC4404
Inverting
8 (6)
Pull Up
7 (5)
Pull Down
TC4405
Noninverting
GND
4
Effective
Input
C ≤ 12 pF
A (B)
DS21418B-page 2 2002 Microchip Technology Inc.
TC4404/TC4405
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Supply Voltage.....................................................+22V
*Stresses above those listed under "Absolute Maximum
Ratings" may cause permanent damage to the device. These
are stress ratings only and functional operation of the device
at these or any other conditions above those indicated in the
operation sections of the specifications is not implied.
Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability.
Power Dissipation (TA ≤ 70°C)
PDIP........................................................ 730mW
CERDIP................................................... 800mW
SOIC........................................................ 470mW
Package Thermal Resistance
PDIP R
PDIP R
CERDIP R
CERDIP R
SOIC R
SOIC R
............................................. 125°C/W
θJ-A
............................................... 45°C/W
θJ-C
.........................................150°C/W
θJ-A
......................................... 55°C/W
θJ-C
............................................ 155°C/W
θJ-A
.............................................. 45°C/W
θJ-C
Operating Temperature Range
C Version.........................................0°C to +70°C
E Version..................................... -40°C to +85°C
M Ve rsion................................... -55°C to +125°C
Storage Temperature Range ............. -65°C to +150°C
TC4404/TC4405 ELECTRICAL SPECIFICATIONS
Electrical Characteristics: TA = +25°C, with 4.5V ≤ V
Symbol Parameter Min Typ Max Units Test Conditions
Input
V
V
I
IN
Output
V
V
R
I
PK
I
DC
I
R
Switching Ti me (Note 1)
t
R
t
F
t
D1
t
D2
Power Supply
I
S
Note 1: Switching times ensured by design.
Logic 1, High Input Voltage 2.4 —— V
IH
Logic 0, Low Input Voltage ——0.8 V
IL
Input Current -1 — 1 µA0V ≤ V
High Output Voltage VDD – 0.025 —— V
OH
Low Output Voltage ——0.025 V
OL
Output Resistance — 710Ω I
O
Peak Output Current (Any Drain) — 1.5 — A Duty cycle ≤ 2%, t ≤ 300µsec
Continuous Output Current (Any Drain) ——100 mA
Latch-Up Protection (Any Drain)
Withstand Reverse Current
Rise Time — 25 30 nsec Figure 3-1, CL = 1000pF
Fall Time — 25 30 nsec Figure 3-1, CL = 1000pF
Delay Time — 15 30 nsec Figure 3-1, CL = 1000pF
Delay Time — 32 50 nsec Figure 3-1, CL = 1000pF
Power Supply Current —
≤ 18V, unless otherwise noted.
DD
≤ V
IN
DD
= 10mA, VDD = 18V; Any Drain
OUT
— >500 — mA Duty cycle ≤ 2%, t ≤ 300µsec
—
—
—
4.5
0.4
mA VIN = 3V (Both Inputs)
= 0V (Both Inputs)
V
IN
2002 Microchip Technology Inc. DS21418B-page 3
TC4404/TC4405
TC4404/TC4405 ELECTRICAL SPECIFICATIONS (CONTINUED)
Electrical Characteristics: Over operating temperature range with 4.5V ≤ V
Symbol Parameter Min Typ Max Units T est Conditions
V
V
I
IN
Logic 1, High Input Voltage 2.4 —— V
IH
Logic 0, Low Input Voltage ——0.8 V
IL
Input Current -10 — 10 µA0V ≤ V
Output
V
V
R
I
PK
I
DC
I
R
High Output Voltage VDD – 0.025 —— V
OH
Low Output Voltage ——0.025 V
OL
Output Resistance — 912Ω I
O
Peak Output Current (Any Drain) — 1.5 — A Duty cycle ≤ 2%, t ≤ 300µsec
Continuous Output Current (Any Drain) ——100 mA
Latch-Up Protection (Any Drain)
— >500 — mA Duty cycle ≤ 2%, t ≤ 300µsec
Withstand Reverse Current
Switching Time (Note 1)
t
R
t
F
t
D1
t
D2
Rise Time ——40 nsec Figure 3-1, CL = 1000pF
Fall Time ——40 nsec Figure 3-1, CL = 1000pF
Delay Time ——40 nsec Figure 3-1, CL = 1000pF
Delay Time ——60 nsec Figure 3-1, CL = 1000pF
Power Supply
I
S
Note 1: Switching times ensured by design.
Power Supply Current —
—
—
—
≤ 18V, unless otherwise noted.
DD
≤ V
IN
= 10mA, VDD = 18V; Any Drain
OUT
8
0.6
mA VIN = 3V (Both Inputs)
= 0V (Both Inputs)
V
IN
DD
DS21418B-page 4 2002 Microchip Technology Inc.
2.0 PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1: PIN FUNCTION TABLE
Pin No.
(8-Pin PDIP,
SOIC, CERD IP)
1V
2 IN A Control input A, TTL/CMOS compatible input.
3 IN B Control input A, TTL/CMOS compatible input.
4 GND Ground.
5 B BOTTOM Output B, pull down.
6 B TOP Output B, pull up.
7 A BOTTOM Output A, pull down.
8 A TOP Output A, pull up.
Symbol Description
DD
Supply input, 4.5V to 18V.
TC4404/TC4405
2002 Microchip Technology Inc. DS21418B-page 5
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