TSI200B1 STMICROELECTRONICS [STMicroelectronics], TSI200B1 Datasheet - Page 4

• Manufacturer Part Number: TSI200B1
• Description: TERMINAL SET INTERFACE PROTECTION AND DIODE BRIDGE
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

TSIxxB1
TEST # 1
LIGHTNING SIMULATION
This test concerns the 10/700 s waveform surge,
Fig. 2 : 10/700 s waveform surge generator circuit
The behaviour of the TSI200B1 to this lightning surge is given below (fig. 3).
Fig. 3 : Voltage across the TSI200B1 at the + and - terminations and current throught it
for a 1.5 kV positive surge (fig.3a) and negative surge (fig. 3b)
These curves show the peak voltage the surge
generates across the TSI200B1 + and -
terminations. This lasts a short time ( 2 s) and
after, as the internal protection gehaves like a
short circuit. The voltage drop across the TSIxxB1
becomes a few volts. In the meanwhile all the
surge current flows in the protection.
As far as the 10/700 s waveform surge test is
concerned,the TSIxxB1 withstand the ±1.5 kV test.
4/9
1.5 kV.
The surge generator used for the test has the
following circuitry (fig.2).