TDE3247 Interface circuit (relay and lamp driver) 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 SO-14 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. Order codes June 2006 Part number Package Packaging TDE3247FP SO-14 Tube TDE3247FPT SO-14 Tape & Reel Rev 2 1/15 www.st.com 15 Contents TDE3247 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 2/15 TDE3247 1 Schematic diagram and pin connections Schematic diagram and pin connections Figure 1. Schematic diagram Figure 2. Pin connections 3/15 Electrical ratings 2 TDE3247 Electrical ratings Table 1. Absolute maximum ratings Symbol Value Unit VCC Supply Voltage 36 V VO Differential Input Voltage 36 V VI Input Voltage 36 V IO Output Current 300 mA Internally limited W PTOT Power Dissipation Toper Ambient Temperature Range –25 to 85 °C TSTG Storage Temperature Range –65 to +150 °C Table 2. 4/15 Parameter 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 3 Electrical characteristics Electrical characteristics (-25°C ≤TA 85°C, 8V ≤VCC ≤30V, IO ≤150mA, TJ ≤150°C, unless otherwise specified) Note: 1 Table 3. Symbol Electrical characteristics Parameter VIO Input Offset Voltage IIB Input Bias Current Test Conditions Min. Typ. Max. Unit 2 50 mV 0.1 1.5 µA High Level 4 10 mA Low Level 2 Note 2 VCC = 24V, IO = 0A, Tamb = 25°C ICC Supply Current VCM Common Mode Input Voltage Range ISC Short-circuit Current VCC-2 2 VCC = 24V, Tamb = 25°C RSC = 3.3Ω (VI+- VI-) ≤50mV Output Saturation Voltage IO = 150mA, RSC = 0 VCC - VO (Output High) TJ = 25°C mA 250 V mA 1.2 1.8 V 1 100 µA 500 µA VO = 0V, VCC = 24V IOL Output Leakage Current (Output Low) TJ = 25°C TJ = 85°C IOS Note: Minimum Short-current Output Current Tamb = 25°C, VCC = 24V RSC = ∞ 50 mA 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. 5/15 Electrical characteristics TDE3247 3.1 Electrical characteristics (curves) Figure 3. Available output current vs. limiting Figure 4. resistor Figure 5. Saturation output voltage vs. case temperature and available output current 6/15 Figure 6. Supply current vs. junction temperature Supply current vs. supply voltage TDE3247 Electrical characteristics Figure 7. Supply voltage vs. minimum limiting Figure 8. resistor value Figure 9. Response time Response time 7/15 Application circuit 4 Application circuit Figure 10. Basic application circuit Figure 11. Output current boosting (5A) 8/15 TDE3247 TDE3247 5 Package mechanical data 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 9/15 Package mechanical data Table 4. TDE3247 SO-14 Mechanical data mm. inch Dim. Min. Typ A a1 Max. Typ. 1.75 0.1 0.2 a2 Max. 0.068 0.003 0.007 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 S Figure 12. Package dimensions 10/15 Min. 0.68 0.026 8° (max.) TDE3247 Package mechanical data 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 11/15 Package mechanical data Table 6. TDE3247 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 12/15 TDE3247 Package mechanical data 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 13/15 Revision history 6 TDE3247 Revision history Table 8. 14/15 Revision history Date Revision Changes 20-Apr-2006 1 First release 27-Jun-2006 2 Typo in cover page TDE3247 Revision history Please Read Carefully: Information in this document is provided solely in connection with ST products. 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