June 2006 Rev 2 1/15
15
Features
■High output current
■Adjustable short-circuit protection to ground
■Internal thermal protection with hysteresis to
avoid the intermediate output levels
■Large supply voltage range: 8 to 30V
■Short-circuit protection to VCC
■Open ground protection
Description
The TDE3247 is a monolithic amplifier designed
for high current and high voltage applications,
specifically to drive lamps, relays and stepping
motors.
The Device is essentialy blow-out proof. Current
limiting is available to limit the peak output current
to a safe value, the adjustment only required an
external resistor.
In addition, thermal shut-down is provided to keep
the IC from overheating.
If external dissipation becomes too high, the
driver will shut-down to prevent excessive
heating.
The output is also protected against short-circuit
with the positive power supply.
The device operates over a wide range of supply
voltage from standard ±15V operational amplifier
supplies down to the single 12V or 24V used for
industrial electronic systems.
SO-14
TDE3247
Interface circuit (relay and lamp driver)
www.st.com
Order codes
Part number Package Packaging
TDE3247FP SO-14 Tube
TDE3247FPT SO-14 Tape & Reel
Contents TDE3247
2/15
Contents
1 Schematic diagram and pin connections . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1 Electrical characteristics (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
TDE3247 Schematic diagram and pin connections
3/15
1 Schematic diagram and pin connections
Figure 1. Schematic diagram
Figure 2. Pin connections
Electrical ratings TDE3247
4/15
2 Electrical ratings
Table 1. Absolute maximum ratings
Symbol Parameter Value Unit
VCC Supply Voltage 36 V
VODifferential Input Voltage 36 V
VIInput Voltage 36 V
IOOutput Current 300 mA
PTOT Power Dissipation Internally limited W
Toper Ambient Temperature Range –25 to 85 °C
TSTG Storage Temperature Range –65 to +150 °C
Table 2. Thermal data
Rth
Junction-ceramic Substrate
(case glued to substrate)
For SO-14
90 °C/W
Rth
Junction-ceramic Substrate
(case glued to substrate, substrate
temperature maintened constant)
For SO-14
65 °C/W
TDE3247 Electrical characteristics
5/15
3 Electrical characteristics
(-25°C ≤ TA 85°C, 8V ≤ VCC ≤ 30V, IO ≤ 150mA, TJ ≤ 150°C, unless otherwise specified) Note: 1
Note: 1 For operating at high temperatures, the device must be derated based on a 150°C
maximum junction and a junction to ambient thermal resistance of 110°C/W
2 The offset voltage given in the maximum value of input voltage required to drive the output
voltage within 2V of the ground or the supply voltage.
Table 3. Electrical characteristics
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VIO Input Offset Voltage Note 2 250mV
IIB Input Bias Current 0.1 1.5 µA
ICC Supply Current
VCC = 24V, IO = 0A,
Tamb = 25°C
High Level 4 10 mA
Low Level 2 mA
VCM
Common Mode Input
Voltage Range 2V
CC-2 V
ISC Short-circuit Current VCC = 24V, Tamb = 25°C
RSC = 3.3Ω250 mA
VCC - VO
Output Saturation Voltage
(Output High)
(VI+- VI-) ≤ 50mV
IO = 150mA, RSC = 0
TJ = 25°C
1.2 1.8 V
IOL
Output Leakage Current
(Output Low)
VO = 0V, VCC = 24V
TJ = 25°C 1 100 µA
TJ = 85°C 500 µA
IOS
Minimum Short-current
Output Current
Tamb = 25°C, VCC = 24V
RSC = ∞50 mA
Electrical characteristics TDE3247
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3.1 Electrical characteristics (curves)
Figure 3. Available output current vs. limiting
resistor
Figure 4. Supply current vs. junction
temperature
Figure 5. Saturation output voltage vs. case
temperature and available output
current
Figure 6. Supply current vs. supply voltage
TDE3247 Electrical characteristics
7/15
Figure 7. Supply voltage vs. minimum limiting
resistor value
Figure 8. Response time
Figure 9. Response time
Application circuit TDE3247
8/15
4 Application circuit
Figure 10. Basic application circuit
Figure 11. Output current boosting (5A)
TDE3247 Package mechanical data
9/15
5 Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a Lead-free second level interconnect. The category of
second level interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com
Package mechanical data TDE3247
10/15
Table 4. SO-14 Mechanical data
Dim.
mm. inch
Min. Typ Max. Min. Typ. Max.
A 1.75 0.068
a1 0.1 0.2 0.003 0.007
a2 1.65 0.064
b 0.35 0.46 0.013 0.018
b1 0.19 0.25 0.007 0.010
C 0.5 0.019
c1 45° (typ.)
D 8.55 8.75 0.336 0.344
E 5.8 6.2 0.228 0.244
e 1.27 0.050
e3 7.62 0.300
F 3.8 4.0 0.149 0.157
G 4.6 5.3 0.181 0.208
L 0.5 1.27 0.019 0.050
M 0.68 0.026
S 8° (max.)
Figure 12. Package dimensions
TDE3247 Package mechanical data
11/15
Table 5. Tube shipment information
Tube mechanical data
mm. inch.
A 6.60 ±0.10 0.260 ±0.004
B 1.90 ±0.10 0.075 ±0.004
C 0.60 ±0.10 0.024 ±0.004
D 7.80 ±0.10 0.307 ±0.004
E 4.30 ±0.10 0.169 ±0.004
BASE QUANTITY 100 pcs.
BULK QUANTITY 2000 pcs.
Figure 13. Tube dimension
Package mechanical data TDE3247
12/15
Table 6. Tape & reel shipment information
Tape mechanical data
mm. inch
D 1.50 +0.1/0 0.059 +0.004/0
E 1.75 ±0.1 0.069 ±0.004
Po 4.00 ±0.1 0.157 ±0.004
T max. 0.40 0.016
D1 min. 1.50 0.059
F 7.5 ±0.05 0.295 ±0.002
K max. 6.50 0.256
P2 2.00 ±0.05 0.079 ±0.002
R 40 1.575
W 16.00 ±0.30 0.630 ±0.012
P1 12.00 0.472
Ao, Bo, Ko 0.05 min to 0.90 max. 0.002 min to 0.035 max.
Figure 14. Tape specification
TDE3247 Package mechanical data
13/15
Table 7. Reel mechanical data
mm. inch
Tape size 16.0 ±0.30 0.630 ±0.012
A max. 330.0 12.992
B min. 1.5 0.059
C 13.0 ±0.20 0.512 ±0.008
D min. 20.2 0.795
N min. 60 2.362
G 16.4 +2/-0 0.646 +0.079/-0
T max. 22.4 0.882
Figure 15. Tape & reel shipment information
Revision history TDE3247
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6 Revision history
Table 8. Revision history
Date Revision Changes
20-Apr-2006 1 First release
27-Jun-2006 2 Typo in cover page
TDE3247 Revision history
15/15
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