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ATTL7581AAE Datasheet(PDF) 10 Page - Agere Systems |
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ATTL7581AAE Datasheet(HTML) 10 Page - Agere Systems |
10 / 16 page 10 Lucent Technologies Inc. Data Sheet November 1999 L7581 Ringing Access Switch Protection (continued) Integrated SLIC Protection (continued) Table 11. Electrical Specifications, Protection Circuitry * Previous versions of this data sheet specified a Trigger Current of 50 mA minimum. Trigger Current is defined as the minimum current drawn from tip and ring to turn on the SCR. The specification in this data sheet is Gate Trigger Current, which is defined as the maximum current that can flow into the battery before the SCR turns on. † Typical at 25 °C. ‡ Twice ± dynamic current limit of break switches. § In some instances, the typical ON-state voltage can range as low as –25 V. Parameters Related to Diodes (in Diode Bridge) Parameter Test Condition Measure Min Typ Max Unit Voltage Drop @ Continuous Cur- rent (50 Hz/60 Hz) Apply ±dc current limit of break switches Forward Voltage —— 3 V Voltage Drop @ Surge Current Apply ±dynamic cur- rent limit of break switches Forward Voltage —5 — V Parameters Related to Protection SCR Surge Current — — — — ‡ A Gate Trigger Current*† —— — 25 50 mA Gate Trigger Current† Temperature Coefficient — — — –0.5 — %/°C Hold Current — — 70 — mA Gate Trigger Voltage Trigger current — VBAT – 4 — VBAT – 2 V Reverse Leakage Current VBAT —— — 1.0 µA ON-State Voltage§ 0.5 A, t = 0.5 µs 2.0 A, t = 0.5 µs VON — — — –3 –5 — — V V |
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