TDF1747 [STMICROELECTRONICS]
INTERFACE CIRCUIT - RELAY AND LAMP - DRIVER; 接口电路 - 继电器和灯 - DRIVER
| 型号： | TDF1747 |
| 厂家： | 
ST |
| 描述： | INTERFACE CIRCUIT - RELAY AND LAMP - DRIVER |
| 文件： | 总11页 (文件大小：168K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TDE1747
TDF1747
INTERFACE CIRCUIT – RELAY AND LAMP – DRIVER
OPEN GROUND PROTECTION
HIGH OUTPUT CURRENT
ADJUSTABLE SHORT-CIRCUIT PROTEC-
TION TO GROUND
THERMAL PROTECTION WITH HYSTERE-
SIS TO AVOID THE INTERMEDIATE OUT-
PUT LEVELS
LARGE SUPPLY VOLTAGE RANGE : + 10 V
TO + 45 V
SHORT-CIRCUIT PROTECTION TO VCC
Minidip (DP)
SO14 (FP)
DESCRIPTION
The TDE/TDF1747 is a monolithic comparator de-
signed for high current and high voltage applica-
tions, specifically to drive lamps, relays, stepping
motors.
ORDERING NUMBERS:
TDE1747DP
These device is essentially blow-out proof. Cur-
rent limiting is available to limit the peak output
current to safe values, the adjustment only re-
quires one external resistor. In addition, thermal
shut down is provided to keep the I.C. from over-
heating. If internals dissipation becomes too
great, the driver will shut down to prevent exces-
sive heating. TDE1747 has an open ground pro-
tection. The output is also protected from short-
circuits with the positive power supply.
TDE1747FP
TDF1747DP
The device operates over a wide range of supply
voltages from standard ± 15 V operational ampli-
fier supplies down to the single + 12 V or + 24
used for industrial electronic systems.
PIN CONNECTIONS (Top view)
Minidip
SO14
November 1991
1/11
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
TDE1747 - TDF1747
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
VCC
VID
VI
Supply Voltage
50 *
Differantial Input Voltage
Input Voltage
50
V
50
1
V
IO
Output Current
A
Ptot
Tstg
Toper
Power Dissipation (Tamb = + 25 °C)
Internally Limited
– 65 to + 150
W
°C
Storage Temperature Range
Operating Ambient Temperature Range
TDE1747
TDF1747
– 25 to + 85
– 40 to + 85
°C
°C
(*) 60V, t â 10ms
THERMAL CHARACTERISTICS
Symbol
Parameter
Value
50
Unit
Rth(j-c)
Rth(j-a)
Rth
Maximum Junction-case Thermal Resistance
°C/W
°C/W
°C/W
Maximum Junction-ambient Thermal Resistance
Junction-ceramic Substrate (case glued to substrate)
120
90
SO14
Rth
Junction-ceramic Substrate (case glued to substrate, substrate temperature
maintened constant)
SO14
65
°C/W
SCHEMATIC DIAGRAM
2/11
TDE1747 - TDF1747
TEST CIRCUIT
SIMPLIFIED CIRCUIT
3/11
TDE1747 - TDF1747
ELECTRICAL CHARACTERISTICS Tj = – 25 to +85 °C, VCC = 8 to 45 V, unless otherwise specified
(note 1).
Symbol
VIO
Parameter
Input Offset Voltage - (note 2)
Min.
Typ.
2
Max.
50
Unit
mV
mA
–
–
IIB
Input Bias Current
0.1
1.5
ICC
Supply Current (VCC = + 24 V, IO = 0)
High Level
Low Level
–
–
4
2
6
4
mA
mA
VI(max)
ISC
Common-mode Input Voltage Range
2
–
VCC–2
V
Short-circuit Current Limit
(Tamb = + 25 °C, VCC = + 24)
RSC = 1.5 Ω
TDE1747
–
–
480
35
–
50
mA
mA
RSC = ∞
VCC–VO
Output Saturation Voltage (output high)
(RSC = 0, VI+–VI– ≥ 50 mV)
IO = 300 mA, Tj = + 25 °C
Tj = + 150 °C
–
–
1.15
1.05
1.4
1.3
V
V
IOL
Low Level Output Current
(VO = 0, VCC = + 24 V)
Tj = + 25 °C
–
0.01
10
µA
Notes :
1) For operating at high temperature, the TDE/TDF1747, must be derated based on a + 150 C maximum junction temperature and a
junction-ambient thermal resistance of 120 °C/W for Minidip and 100 °C/W for the SO14.
2) The offset voltage given is the maximum value of input voltage required to drive the output voltage within 2 V of the ground or the supply
voltage.
Figure 2: Peak Short-circuit Output Current vs.
Figure 1: Available Output Current vs. Limiting
Limiting Resistor
Resistor
4/11
TDE1747 - TDF1747
Figure 4: Minimum Limiting Resistor Value vs.
Figure 3: Short-circuitCurrent vs. Case
Supply Voltage
Temperature
Figure 6: SupplyCurrent vs. Supply Voltage
Figure 5: Output Current vs. Output Saturation
Voltage
Figure 8: Safe OperatingArea (non repetitive
Figure 7: Supply Current vs. Junction
surge)
Temperature
5/11
TDE1747 - TDF1747
Figure 9: Response Time
TYPICAL APPLICATIONS
Figure 10: Base Circuit
6/11
TDE1747 - TDF1747
Figure 11: Output Current Extension (5A)
Figure 12: Driving Low Impedance Relays (IO = 300mA)
The device in the above application operates at: VCC = +45V, IO = 300mA with a heatsink such that Rth(j-a) ≤ 80°C/W. The device supports
an outputvoltage of VCC = VZ during the current cut off time, which is decreased by the zener diode. Thisvoltage must be≤ to the maximum
supply voltage.
7/11
TDE1747 - TDF1747
Figure 13: Waveforms
(FIGURE 13a)
(FIGURE 13b)
8/11
TDE1747 - TDF1747
SO14 PACKAGE MECHANICAL DATA
mm
inch
DIM.
MIN.
TYP.
MAX.
1.75
0.25
1.6
MIN.
TYP.
MAX.
0.069
0.009
0.063
0.018
0.010
A
a1
a2
b
0.1
0.004
0.35
0.19
0.46
0.25
0.014
0.007
b1
C
0.5
0.020
c1
D
45 (typ.)
8.55
5.8
8.75
6.2
0.336
0.228
0.344
0.244
E
e
1.27
7.62
0.050
0.300
e3
F
3.8
0.4
4.0
0.15
0.157
0.050
0.027
L
1.27
0.68
0.016
M
S
8 (max.)
9/11
TDE1747 - TDF1747
MINIDIP PACKAGE MECHANICAL DATA
mm
inch
TYP.
0.131
DIM.
MIN.
TYP.
MAX.
MIN.
MAX.
A
a1
B
3.32
0.51
1.15
0.020
0.045
0.014
0.008
1.65
0.55
0.065
0.022
0.012
0.430
0.384
b
0.356
0.204
b1
D
E
0.304
10.92
9.75
7.95
0.313
e
2.54
7.62
7.62
0.100
0.300
0.300
e3
e4
F
6.6
0.260
0.200
0.150
0.060
I
5.08
3.81
1.52
L
3.18
0.125
Z
10/11
TDE1747 - TDF1747
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications men-
tioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without ex-
press written approval of SGS-THOMSON Microelectronics.
1994 SGS-THOMSON Microelectronics - All RightsReserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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11/11
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