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PIFE32251B-R68MS 数据表(PDF) 29 Page - Texas Instruments |
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PIFE32251B-R68MS 数据表(HTML) 29 Page - Texas Instruments |
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29 / 157 page  29 TPS650830 www.ti.com SLVSCF4A – DECEMBER 2014 – REVISED JULY 2016 Submit Documentation Feedback Product Folder Links: TPS650830 Specifications Copyright © 2014–2016, Texas Instruments Incorporated Electrical Characteristics (continued) Over recommended free-air temperature range and over recommended input voltage range (typical at an ambient temperature range of 25°C) (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VR2_Powergood Mask time during DVS ramp up (exit DVS) Powergood is kept high and masked during DVS exit, ramp up, and until 100 µs after the internal reference has stepped up to the final voltage setting. ramp- up + 90 ramp- up + 100 ramp- up + 110 μs VR2_Force PWM time during DVS ramp down (enter DVS) PWM is forced during DVS enter, ramp down, and until 10 µs after the internal reference has stepped down to the final voltage setting. Forced PWM allows a fast transient response and smaller output voltage ripple during the transition. ramp- down + 9 ramp- down + 10 ramp- down + 11 μs VR2_Force PWM time during DVS ramp up (exit DVS) PWM is forced during DVS exit, ramp up, and until 10 µs after the internal reference has stepped up to the final voltage setting. Forced PWM allows a fast transient response and smaller output voltage ripple during the transition. ramp- up + 9 ramp- up + 10 ramp- up + 11 μs Over temperature protection THOT 120 140 °C Over temperature hysteresis THOT 10 °C Over temperature protection TSHUT 130 160 °C Over temperature hysteresis TSHUT 10 °C VR3 Controller POWER Input voltage Parametric and functional 5.4 7.4 21 V Input voltage Functional 5.4 7.4 24 V Output voltage Power save mode disabled (STANDBYZ (SLP_S0#) = H, or STANDBYZ (SLP_S0#) = L, V33ADSWCNT[7:6] = 2'b00, V33ADSWCNT[5:4] = 2'b00) 3.399 V Output voltage Power save mode disabled (STANDBYZ (SLP_S0#) = H, or STANDBYZ (SLP_S0#) = L, V33ADSWCNT[7:6] = 2'b00, V33ADSWCNT[5:4] = 2'b01) 3.366 V Output voltage - Default Power save mode disabled (STANDBYZ (SLP_S0#) = H, or STANDBYZ (SLP_S0#) = L, V33ADSWCNT[7:6] = 2'b00, V33ADSWCNT[5:4] = 2'b10) (DEFAULT) 3.3 V Output voltage Power save mode disabled (STANDBYZ (SLP_S0#) = H, or STANDBYZ (SLP_S0#) = L, V33ADSWCNT[7:6] = 2'b00, V33ADSWCNT[5:4] = 2'b11) 3.234 V Output voltage Power save mode enabled, STANDBYZ (SLP_S0#) = STANDBYZ = L, V33ADSWCNT[7:4] = 4'b01XX 3.168 V Output voltage Power save mode enabled, STANDBYZ (SLP_S0#) = STANDBYZ = L, V33ADSWCNT[7:4] = 4'b10XX 3.201 V Output voltage Power save mode enabled, STANDBYZ (SLP_S0#) = L, V33ADSWCNT[7:4] = 4'b11XX 3.234 V Current limit (Vsw - PGND) VTRIP = 0.2 V -30 -25 -20 mV VTRIP = 0.8 V -105 -100 -95 mV VTRIP = 2 V -260 -250 -240 mV |
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