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SPF7302 Datasheet(PDF) 4 Page - Allegro MicroSystems |
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SPF7302 Datasheet(HTML) 4 Page - Allegro MicroSystems |
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4 / 16 page  Full Bridge DC Motor Driver SPF7302 4 DLY Pin Threshold Voltage VDLY(th) Overcurrent limitation (OCL) activating voltage 1.4 1.6 1.8 V DLY Pin Sourcing Current2 IDLY 15 30 60 μA UVLO Releasing Voltage VUVLO_OFF – – 5.2 V UVLO Activating Voltage VUVLO_ON 4.2 – – V UVLO Hysteresis VUVLOhys – 0.2 – V OVP Protection Activating Voltage VOVP_ON 36 – 42 V OVP Protection Releasing Voltage VOVP_OFF 32 – 38 V OVP Hysteresis VOVPhys –5 – V Thermal Shutdown Activating Temperature3 TTSD_ON Starts at 165°C typical; guaranteed by design 151 165 – ºC Thermal Shutdown Releasing Temperature3 TTSD_OFF Guaranteed by design 136 150 – ºC Thermal Shutdown Hysteresis3 TTSDhys Guaranteed by design – 15 – ºC 1 The parameters at TJ = –40ºC to 150ºC are specified by design. The actual production tests are done at 25ºC and 125ºC. 2 The individual overcurrent limitation of each DMOSFET is masked during the delay period. Therefore, ensure proper thermal design for dissipating transient temperature increase caused by current during this period. 3 TSD (thermal shutdown protection starts at 165ºC typical, and it is specified by design. ELECTRICAL CHARACTERISTICS1 (continued) valid at TJ = –30°C to 125°C, VBB = 14 V, VDI = 5 V, CCP = 47 nF, RDIAG = 5.1 kΩ, unless otherwise specified Characteristic Symbol Test Conditions Min. Typ. Max. Unit Motor Control Truth Table1 Reference Number Status Input Output DMOSFET status DI IN1 IN2 OUT1 OUT2 DIAG HS1 LS1 HS2 LS2 1 Forward rotation2 H H L H L H ON OFF OFF ON 2 Reverse rotation2 H L H L H H OFF ON ON OFF 3 Low-side freewheeling H L L L L H OFF ON OFF ON 4 High-side freewheeling H H H H H H ON OFF ON OFF 5 Output disabled L X X Z Z H OFF OFF OFF OFF 6 Overcurrent limitation (OCL) active (HS1) H H X H X H ON OFF X X 7 Overcurrent limitation (OCL) active (HS2) H XHXH H X X ON OFF 8 Overcurrent limitation (OCL) active (LS1) H L X L X H OFF ON X X 9 Overcurrent limitation (OCL) active (LS2) H X L X L H X X OFF ON 10 Overcurrent protection with latch (OCP) active (HS1) H H X Z Z L OFF OFF OFF OFF 11 Overcurrent protection with latch (OCP) active (HS2) H X H Z Z L OFF OFF OFF OFF 12 Overcurrent protection with latch (OCP) active (LS1) H L X Z Z L OFF OFF OFF OFF 13 Overcurrent protection with latch (OCP) active (LS2) H X L Z Z L OFF OFF OFF OFF 14 Undervoltage lockout (UVLO) protection active X X X Z Z L OFF OFF OFF OFF 15 Overvoltage protection (OVP) active X X X X X L XXXX 16 Open load detected at startup L X X X X L OFF OFF OFF OFF 17 Open load detected in operation H X X X X L XXXX 18 Thermal shutdown protection (TSD) active X X X Z Z L OFF OFF OFF OFF 1 X is "don't care," Z is high impedance. 2 "Forward" and "reverse" only indicate opposite relative direction. Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com |
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