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AAT4901IJS-1-T1 Datasheet(PDF) 8 Page - Advanced Analogic Technologies |
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AAT4901IJS-1-T1 Datasheet(HTML) 8 Page - Advanced Analogic Technologies |
8 / 16 page AAT4901 Buffered Power Full-Bridge FastSwitch TM PRODUCT DATASHEET 8 4901.2008.03.1.0 www .analogictech.com Options AAT4901-1 H-bridge configuration with two enables. Enable B is active high and enables the H-bridge output. Enable A toggles the H-bridge outputs A and B in anti-phase. In steady state, this can provide forward/reverse motor drive signals. AAT4901-2 H-bridge configuration with two enables. Enable A and Enable B are in anti-phase and provide forward/reverse and braking. AAT4901-3 Dual independent half-bridge configuration with four enables. Function similar to 2 x AAT4900. AAT4901-4 H-bridge with two enables. Enable A and Enable B are in anti-phase and toggle the H-bridge outputs A and B in anti-phase respectively. In steady state, this can provide forward/reverse motor drive signals to adjust the motor speed by various duty cycles. AAT4901-1/-4 Logic Table -1 -4 OUTA OUTB ENA ENB ENA ENB 0 0 0 0 Hi Z Hi Z 1 0 1 1 Hi Z Hi Z 0 1 1 0 IN GND 1 1 0 1 GND IN AAT4901-2 Logic Table ENA ENB OUTA OUTB 0 0 Hi Z Hi Z 1 0 IN GND 0 1 GND IN 1 1 IN IN AAT4901-3 Logic Table ENA/C ENB/D OUTA/B 0 0 Hi Z 1 0 Hi Z 01 IN 1 1 GND Timing Diagram V_ENA V_OUTA TON-DLY-R TON-DLY-F 50% 50% TON-DLY-R TON-DLY-F 50% 50% THIZ_GND TON-DLY-R THIZ_IN TON-DLY-F 50% 50% 50% 50% 10% 90% 90% 10% V_ENB V_OUTB Hi Z Hi Z Hi Z Hi Z (OFF) (OFF) (OFF) (OFF) Figure 1: AAT4901-4 Timing Diagram. |
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