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ACS709LLFTR-35BB-T Datasheet(PDF) 3 Page - Allegro MicroSystems |
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ACS709LLFTR-35BB-T Datasheet(HTML) 3 Page - Allegro MicroSystems |
3 / 16 page High Bandwidth, Fast Fault Response Current Sensor IC In Thermally Enhanced Package ACS709 3 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com IP– VZCR FILTER GND VIOUT Drain IP+ FAULT Signal Recovery VOUT(Q) Trim Sensitivity Trim R Q CLK D VOC VCC POR FAULT Reset 3 mA 2VREF POR Hall Bias Control Logic FAULT_EN + – + – Fault Comparator Hall Amplifier RF(INT) 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 IP+ IP+ IP+ IP+ IP+ IP+ IP– IP– IP– IP– IP– IP– NC NC FAULT_EN VOC VCC FAULT VIOUT FILTER VZCR GND NC NC Terminal List Table Number Name Description 1 through 6 IP+ Sensed current copper conduction path pins. Terminals for current being sensed; fused internally, loop to IP– pins; unidirectional or bidirectional current flow. 7 through 12 IP– Sensed current copper conduction path pins. Terminals for current being sensed; fused internally, loop to IP+ pins; unidirectional or bidirectional current flow. 13, 14, 23, 24 NC No connection 15 GND Device ground connection. 16 VZCR Voltage Reference Output pin. Zero current (0 A) reference; output voltage on this pin scales with VCC. 17 FILTER Filter pin. Terminal for an external capacitor connected from this pin to GND to set the device bandwidth. 18 VIOUT Analog Output pin. Output voltage on this pin is proportional to current flowing through the loop between the IP+ pins and IP– pins. 19 ¯F¯¯A¯U¯¯L¯¯T¯ Overcurrent Fault pin. When current flowing between IP+ pins and IP– pins exceeds the overcurrent fault threshold, this pin transitions to a logic low state. 20 VCC Supply voltage. 21 VOC Overcurrent Input pin. Analog input voltage on this pin sets the overcurrent fault threshold. 22 FAULT_EN Enables overcurrent faulting when high. Resets ¯F¯¯A¯U¯¯L¯¯T¯ when low. Functional Block Diagram Pin-out Diagram |
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