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NCV7429 Datasheet(PDF) 9 Page - ON Semiconductor |
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NCV7429 Datasheet(HTML) 9 Page - ON Semiconductor |
9 / 43 page NCV7429 www.onsemi.com 9 Table 5. ELECTRICAL CHARACTERISTICS (continued) (6 V ≤ Vs ≤ 18 V, 6 V ≤ Vs_out ≤ 18 V, −40°C ≤ Tj ≤ 150°C; unless otherwise specified) Symbol Unit Max Typ Min Conditions Parameter MODE TRANSITION TIMING Tdel_powerup Transition Time from Power-up to Init VS reaching VS_PORH to VR1 startup 15 ms Tdel_norm_stdby Transition Time from Normal/Flash to Standby Mode via SPI CSN going high to Standby mode entry (Note 9) 10 ms Tdel_norm_sleep Transition Time from Normal/Flash to Sleep Mode via SPI CSN going high to Sleep mode entry (Note 9) 10 ms Tdel_stdby_norm Delay of INTN Pulse in Standby af- ter Wakeup 10 ms Tdel_sleep_init Transition from Sleep to Init Mode via Wakeup 10 ms NRES AND INTN SIGNAL TIMING T_NRES NRES Low Pulse Duration, e.g. after a Watchdog Failure or VR1 Undervoltage 1.7 2 2.3 ms T_INTN INTN Low Pulse Duration after Wake-up Event 106 125 144 ms DRIVER TIMING Tdel_OUT1−3_on Activation Delay of OUT1−3 Driver (from CSN rising edge) VS_OUT = 13.2 V; V(OUT1−3) > 0.5·VS_OUT 12 40 ms Tdel_OUT1−3_off De-activation Delay of OUT1−3 Driver (from CSN rising edge) VS_OUT = 13.2 V; V(OUT1−3) < 0.5·VS_OUT 20 55 ms Tdel_LS1/2_on Activation Delay of LS1/2 Driver (from CSN rising edge) VS_OUT = 13.2 V; V(LS1/2) < 0.5·VS_OUT 17 42 85 ms Tdel_LS1/2_off De-activation Delay of LS1/2 Driver (from CSN rising edge) VS_OUT = 13.2 V; V(LS1/2) > 0.5·VS_OUT 17 32 62 ms INTERNAL PWM FOR DRIVERS CONTROL f_PWM_lo PWM Controller Frequency, Low Setting FSEL_OUTx/LSx = 0 127 150 173 Hz f_PWM_hi PWM Controller Frequency, High Setting FSEL_OUTx/LSx = 1 170 200 230 Hz TIMER1/2 TIMING Ttim_acc Timer1/2 Period/On-time Accuracy (see CONTROL_2 register settings) T1_TPER.[2:0], T1_TON, T2_TPER.[2:0], T2_TON.[1:0] −15 +15 % 9. Delays and slopes of LS1/2 drivers not included. |
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