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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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PIFE32251B-R68MS 데이터시트(PDF) 26 Page - Texas Instruments |
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PIFE32251B-R68MS 데이터시트(HTML) 26 Page - Texas Instruments |
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26 / 157 page  26 TPS650830 SLVSCF4A – DECEMBER 2014 – REVISED JULY 2016 www.ti.com 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 VR1_Force PWM time (deglitch time) during CCM to DCM transition PWM is forced for 16 switching cycles before PFM is enabled turning off the low- side power MOSFET. Low-side FET current during each cycle must fall below the PFM current comparator valley threshold. Forced PWM allows a fast transient response and smaller output voltage ripple during the transition. 16 16 16 cycles VR1_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 VR1_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 Overtemperature protection 130 145 160 °C Overtemperature hysteresis 10 °C VR2 Converter POWER VVINVR2 power input voltage - Parametric and functional VVINVR2 voltage range, VVIN = 5.4 V to 21 V 3.135 3.3 3.465 V VVINVR2 power input voltage - Functional VVINVR2 voltage range, VVIN = 5.4 V to 24 V 2.97 3.3 3.63 V Output voltage Power save mode disabled ((STANDBYZ (SLP_S0#) = X) and (V18ACNT[7:4] = 4'b0000)) 1.854 V Output voltage Power save mode disabled (STANDBYZ ((SLP_S0#) = X) and (V18ACNT[7:4] = 4'b0001)) 1.836 V Output voltage - Default Power save mode disabled (STANDBYZ ((SLP_S0#) X) and (V18ACNT[7:4] = 4'b0010)) (DEFAULT) 1.8 V Output voltage Power save mode disabled ((STANDBYZ (SLP_S0#) = X) and (V18ACNT[7:4] = 4'b0011 )) 1.764 V Output voltage Power save mode enabled, (STANDBYZ (SLP_S0#) = L) and (V18ACNT[7:4] = 4'b01XX)) 1.728 V Output voltage Power save mode enabled, ((STANDBYZ (SLP_S0#) = L) and (V18ACNT[7:4] = 4'b10XX)) 1.746 V Output voltage Power save mode enabled, ((STANDBYZ (SLP_S0#) = L) and (V18ACNT[7:4] = 4'b11XX)) 1.764 V Maximum average output current range VVINVR2 = 2.97 V to 3.63 V 2500 mA Ripple current range VVINVR2 = 2.97 V to 3.63 V 325 1110 mA Low side valley cycle by cycle positive current limit VVINVR2 = 2.97 V to 3.63 V 2260 3360 mA Low side valley cycle by cycle negative current limit VVINVR2 = 2.97 V to 3.63 V 1400 1875 mA PFM valley current threshold VVINVR2 = 2.97 V to 3.63 V 90 125 mA High side switch on resistance VVINVR2 = 3.3 V, 100% duty cycle 30 105 mΩ |
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