(Hong Kong)
Product Summary
The TDF1778 is a dual source driver delivering high output currents and capable to drive any type of loads (Electrovalves, contactors, lamps). The TDF1778 is essentially blow-out proof, each output isprotected against short-circuits. If internal dissipation becomes too high, drivers will shut down to prevent excessive heating. An ALARM output is provided to indicate the action of the thermal protection. To reactivate the power outputs, the TDF1778 reset input must be forced to low state. SENSE information of both power outputs are ORed together and then processed internally. A STROBE input is also provided to offer the possibility of disabling the power outputs.
Parametrics
TDF1778 absolute maximum ratings: (1)VCC, Supply Voltage: 35 V (60 V/10 ms); (2)VI, Vreset Input Voltage (pins 7, 10 and 11): – 30 to + 50 V; (3)Vstrobe, Strobe Input Voltage: – 0.5 to VCC; (4)Toper, Operating Ambient Temperature Range: – 40 to + 85℃; (5)Tj, Junction Temperature: + 150℃.
Features
TDF1778 features: (1)output current up to 2.5 A; (2)wide range of supply voltages: + 8 to +32V; (3)can withstand over voltages of as high as 60 V between VCC andground; (4)internal zener diode provides fast switching of inductive loads; (5)output voltage can be lower than ground.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||
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 TDF1778 |
Other |
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Data Sheet |
Negotiable |
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TDF1778SP |
STMicroelectronics |
Power Driver ICs Dual Relay/Lamp |
Data Sheet |
Negotiable |
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