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Número de pieza | TC4403CPA | |
Descripción | FLOATING LOAD DRIVER | |
Fabricantes | TelCom | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de TC4403CPA (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
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TC4403
1.5A HIGH-SPEED, FLOATING LOAD DRIVER
FEATURES
s Low Quiescent Current ......................... 300µA Max
s Capacitive Inputs With 300mV Hysteresis
s Both Inputs Must Be Driven to Drive Load
s Low Output Leakage
s High Peak Current Capability
s Fast Output Rise Time
s Outputs Individually Testable
APPLICATIONS
s Isolated Load Drivers
s Pulsers
s Safety Interlocks
ORDERING INFORMATION
Part No.
TC4403CPA
TC4403EPA
TC4403MJA
Package
8-Pin PDIP
8-Pin PDIP
8-Pin CerDIP
PIN CONFIGURATION
Temperature
Range
0°C to 70°C
– 40°C to +85°C
– 55°C to +125°C
NC 1
IN (VDD) 2
GND 3
IN (GND) 4
TC4403
(TOP VIEW)
8 NC
7 OUT (VDD)
6 VDD
5 OUT (GND)
FUNCTIONAL BLOCK DIAGRAM
GENERAL DESCRIPTION
The TC4403 is a modified version of the TC4425 driver,
intended to drive floating or isolated loads requiring high-
current pulses. The load is intended to be connected be-
tween the outputs without other reference to supply or
ground. Then, only when both logic inputs and the VDD input
are energized, is power supplied to the load. This construc-
tion allows the implementation of a wide variety of redundant
input controllers.
The low OFF-state output leakage and independence of
the two half-circuits permit a wide variety of testing schemes
to be utilized to assure functionality. The high peak current
capability, short internal delays, and fast output rise and fall
times ensure that sufficient power will be available to the
load when it is needed. The TTL and CMOS compatible
inputs allow operation from a wide variety of input devices.
The ability to swing the inputs negative without affecting
device performance allows negative biases to be placed on
the inputs for greater safety. In addition, the capacitive
nature of the inputs allows the use of series resistors on the
inputs for extra noise suppression.
The TC4403 is built for outstanding ruggedness and
reliability in harsh applications. Input voltage excursions
above the supply voltage or below ground are clamped
internally without damaging the device. The output stages
are power MOSFETs with high-speed body diodes to pre-
vent damage to the driver from inductive kickbacks.
6 VDD
2
3
4
5
6
IN (GND)
IN (VDD)
4
2
GND
3
EFFECTIVE INPUT
C = 20pF
(EACH INPUT)
TELCOM SEMICONDUCTOR, INC.
300mV INPUT
HYSTERESIS
TC4403
7 OUT (VDD)
5 OUT (GND)
7
8
TC4403-6 10/11/96
4-213
1 page 1.5A HIGH-SPEED,
FLOATING LOAD DRIVER
TYPICAL CHARACTERISTICS (Cont.)
Delay Time vs. Supply Voltage
50
C LOAD = 2200pF
45 TA = +25°C
40
35 tD2
30 tD1
25
20
4 6 8 10 12 14 16 18
VDD
Quiescent Current vs. Voltage
TA = +25°C
1
BOTH INPUTS = 1
BOTH INPUTS = 0
0.1
0.01
4 6 8 10 12 14 16 18
VDD
Typical Discharge Characteristics
5.7
5.1
4.5
3.9 2.768V
2.727V
3.3 +
+
2.7
2.1
1.5
0
75 150 225 300
525
75 HOURS
HOURS OF SERVICE
TELCOM SEMICONDUCTOR, INC.
1
TC4403
Delay Time vs. Temperature
50
CLOAD = 2200pF
45
tD2
40
35 tD1
30
25
20
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
Quiescent Current vs. Temperature
1.4
1.2
1.0
0.8 INPUTS = 1
0.6
0.4
0.2 INPUTS = 0
0.0
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
TYPICAL APPLICATION
2
3
4
5
6
POWER
RT
FIRE
+15V
TC4422
6
2
RT
ARM
1 MΩ
TC4403
4
1 MΩ
3
–15V
7
5
RLOAD
7
8
4-217
5 Page |
Páginas | Total 5 Páginas | |
PDF Descargar | [ Datasheet TC4403CPA.PDF ] |
Número de pieza | Descripción | Fabricantes |
TC4403CPA | FLOATING LOAD DRIVER | TelCom |
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