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A3935KJP Datasheet(PDF) 7 Page - Allegro MicroSystems |
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A3935KJP Datasheet(HTML) 7 Page - Allegro MicroSystems |
7 / 16 page 3935 THREE-PHASE POWER MOSFET CONTROLLER www.allegromicro.com 7 ELECTRICAL CHARACTERISTICS: unless otherwise noted at T J = -40°C to +150°C, VBAT = 7 V to 16 V, V DD = 4.75 V to 5.25 V, ENABLE = 22.5 kHz, 50% Duty Cycle, Two Phases Active. Limits Characteristics Symbol Conditions Min Typ Max Units Fault Logic VDD Undervoltage V DD(uv) Decreasing V DD 3.8 – 4.3 V VDD Undervoltage Hysteresis ∆V DD(uv) V DD(recovery) - VDD(uv) 100 – 300 mV OVSET Operating Volt. Range V SET(ov) 0– V DD V OVSET Calibrated Volt. Range V SET(ov) 0 – 2.5 V OVSET Input Current Range I SET(ov) -1.0 – +1.0 µA VBAT Overvoltage Range V BAT(ov) 0 V < V SET(ov) < 2.5 V 19.4 – 40 V VBAT Overvoltage V BAT(ov) Increasing V BAT, VSET(ov) = 0 V 19.4 22.4 25.4 V VBAT Overvoltage Hysteresis ∆V BAT(ov) Percent of V BAT(ov) value set by VSET(ov) 9.0 – 15 % VBAT Overvoltage Gain Constant K BAT(ov) V BAT(ov) = (KBAT(ov) x VSET(ov)) + VBAT(ov) [0] – 12 – V/V VBAT Undervoltage V BAT(uv) Decreasing V BAT 5.0 5.25 5.5 V VBAT Undervoltage Hysteresis ∆V BAT(uv) Percent of V BAT(uv) 8.0 – 12 % VREG Undervoltage V REG(uv) Decreasing V REG 9.9 – 11.1 V VDSTH Input Range V DSTH 0.5 – 3.0 V VDSTH Input Current I DSTH V DSTH > 0.8 V 40 – 100 µA Short-to-Ground Threshold V STG(th) With a high-side driver “on”, as V SX decreases, V DSTH-0.3 – V DSTH+0.2 V V DRAIN - VSX > VSTG causes a fault Short-to-Battery Threshold V STB(th) With a low-side driver “on”, as V SX increases, V DSTH-0.3 – V DSTH+0.2 V V SX - VLSS > VSTB causes a fault V DRAIN /Open Bridge Oper. Range V DRAIN 7 V < V BAT < 40 V -0.3 – V BAT+2.0 V V DRAIN /Open Bridge Current I VDRAIN 7 V < V BAT < 40 V 0 – 1.0 mA V DRAIN /Open Bridge Threshold Volt. V BDGO(th) If V DRAIN < VBDGOTH then a bridge fault occurs 1.0 – 3.0 V Thermal Shutdown Temp. T J 160 170 180 °C Thermal Shutdown Hysteresis ∆T J 7.0 10 13 °C NOTES: Typical Data and Typical Characteristics are for design information only. Negative current is defined as coming out of (sourcing) the specified device terminal. |
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