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参数资料
| 型号： | L585D1 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| 封装： | SO-16 |
| 文件页数： | 6/8页 |
| 文件大小： | 708K |
| 代理商： | L585D1 |
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Figure 1 : Application Circuit.
PROTECTION
SHORT CIRCUIT PROTECTION
The integrated darlington is protected against short
circuits of the lamp. The short circuit current is lim-
ited at 600 mA and if this condition persistes thermal
protection will intervene.
DUMP PROTECTION
The whole IC is protected against load dump tran-
sients (100 V, 300 ms with a rise time greater than
5 ms) in the typical application circuit. The only com-
ponent to which this transient is directly applied (no
series resistances) is the lamp driver darlington.
During transients the darlington is kept off and can
withstand peak voltages of 100 V. Additionally, the
IC can withstand low energy spikes up to 300 V.
These spikes are clamped by an internal 100 V
zener on the collector of the lamp driver darlington.
THERMAL PROTECTION
When the IC temperature reaches 170
°C the lamp
driver darlington is kept off.
The device is able to withstand all the voltage tran-
sients mentioned in ISO DP7637/1. If voltage tran-
sients more severe than the above ISO standard
have to be withstood, an external protection device
(transil) must be connected between pin 15 and
GND. For transients up to 250V, tpulse = 500
s,
Rsource = 47
, the transil P6KE100P is recom-
mended.
L585
6/8
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