Datasheet
TC4451/TC4452
DS21987B-page 4 2006-2012 Microchip Technology Inc.
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
Supply Voltage .....................................................+20V
Input Voltage ....................(V
DD
+ 0.3V) to (GND – 5V)
Input Current (V
IN
> V
DD
) ...................................50 mA
† Notice: Stresses above those listed under “Absolute Maxi-
mum 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.
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise noted, T
A
= +25°C with 4.5V V
DD
18V.
Parameters Sym Min Typ Max Units Conditions
Input
Logic ‘1’, High Input Voltage V
IH
2.4 1.5 — V
Logic ‘0’, Low Input Voltage V
IL
—1.30.8V
Input Current I
IN
–10 — +10 µA 0VV
IN
V
DD
Input Voltage V
IN
–5 — V
DD
+ 0.3 V
Output
High Output Voltage V
OH
V
DD
– 0.025 — — V DC Test
Low Output Voltage V
OL
— — 0.025 V DC Test
Output Resistance, High R
OH
—1.01.5 I
OUT
= 10 mA, V
DD
= 18V
Output Resistance, Low R
OL
—0.91.5 I
OUT
= 10 mA, V
DD
= 18V
Peak Output Current I
PK
—13—AV
DD
= 18V
Continuous Output Current I
DC
2.6 — — A 10V V
DD
18V (Note 2, Note 3)
Latch-Up Protection
Withstand Reverse Current
I
REV
— >1.5 — A Duty cycle2%, t 300 µs
Switching Time (Note 1)
Rise Time t
R
—3040nsFigure 4-1, C
L
= 15,000 pF
Fall Time t
F
—3240nsFigure 4-1, C
L
= 15,000 pF
Propagation Delay Time t
D1
—4452nsFigure 4-1, C
L
= 15,000 pF
Propagation Delay Time t
D2
—4452nsFigure 4-1, C
L
= 15,000 pF
Power Supply
Power Supply Current I
S
— 140 200 µA V
IN
= 3V
—40100µAV
IN
= 0V
Operating Input Voltage V
DD
4.5 — 18.0 V
V
DD
Ramp Rate SV
DD
0.2 — — V/ms
Note 1: Switching times ensured by design.
2: Tested during characterization, not production tested.
3: Valid for AT and MF packages only. T
A
= +25°C.