米6体育平台手机版_好二三四

ZHCSOF8C november 2021 – april 2023 TPS2597

PRODUCTION DATA

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机械数据 (封装 | 引脚)

RPW|10
- MPQF568

散热焊盘机械数据 (封装 | 引脚)

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7.8 Typical Characteristics

Figure 7-1 ON-Resistance vs Supply Voltage

Figure 7-3 IN Quiescent Current vs Temperature (TPS25972x Variant)

Figure 7-5 IN Shutdown Current vs Temperature

Figure 7-7 EN/UVLO Rising Threshold vs Temperature

Figure 7-9 EN/UVLO Shutdown Falling Threshold vs Temperature

Figure 7-11 OVLO Falling Threshold vs Temperature (TPS25970x, TPS25974x Variants)

Figure 7-13 Overcurrent Threshold Accuracy (Across Process, Voltage and Temperature)

Figure 7-15 Scalable Fast-Trip Threshold: Current Limit Threshold (I_LIM) Ratio vs Temperature

Figure 7-17 OVC Clamping Voltage (OVCSEL = 390 kΩ to GND) vs Load Current (TPS25972x Variant)

Figure 7-19 OVC Clamping Voltage (OVCSEL = GND) vs Load Current (TPS25972x Variant)

Figure 7-21 ITIMER Discharge Current vs Temperature

Figure 7-23 ITIMER internal Pullup Voltage vs Temperature

Figure 7-25 PGTH Threshold (Rising) vs Temperature (TPS25972x, TPS25974x Variants)

Figure 7-27 FLT Pin Pulldown Resistance vs Temperature

Figure 7-29 Time to Thermal Shut-Down During Steady State

V_EN/UVLO = 2 V, C_OUT = 22 μF, C_dVdt = Open, V_IN ramped from 0 V → 12 V → 0 V

Figure 7-31 Power Up and Down With Input Supply

V_IN = 12 V, C_OUT = 470 μF, C_dVdt = Open, V_EN/UVLO stepped up to 3.3 V

Figure 7-33 Inrush Current Without Slew Rate Control – Capacitive Load

V_IN = 12 V, C_OUT = 470 μF, R_OUT = 10 Ω, C_dVdt = 5100 pF, V_EN/UVLO stepped up to 3.3 V

Figure 7-35 Inrush Current With Slew Rate Control – Resistive and Capacitive Load

R_OVCSEL = GND, C_OUT = 220 μF, I_OUT = 200 mA, V_IN ramped up from 3.3 V to 5.8 V

Figure 7-37 Overvoltage Clamp Response – TPS25972x

R_OVCSEL = 390 kΩ, C_OUT = 220 μF, I_OUT = 200 mA, V_IN ramped up from 12 V to 16.5 V

Figure 7-39 Overvoltage Clamp Response – TPS25972x

V_IN = 12 V, C_ITIMER = 1.3 nF, C_OUT = 220 μF, R_ILM = 715 Ω, I_OUT stepped from 0 A → 11 A

Figure 7-41 Active Current Limit Response Followed by TSD – TPS25970x

V_IN = 12 V, C_ITIMER = 1.3 nF, C_OUT = 470 μF, R_ILM = 715 Ω, I_OUT stepped from 0 A → 11 A

Figure 7-43 Circuit-Breaker Response TPS25974x

V_IN = 12 V, R_ILM = 715 Ω, OUT stepped from Open → Short-circuit to GND

Figure 7-45 Output Short-Circuit During Steady State (Zoomed In)

Figure 7-2 IN Quiescent Current vs Temperature (TPS25970x, TPS25974x Variants)

Figure 7-4 IN OFF State (UVLO) Current vs Temperature

Figure 7-6 IN Undervoltage Threshold vs Temperature

Figure 7-8 EN/UVLO Falling Threshold vs Temperature

Figure 7-10 OVLO Rising Threshold vs Temperature (TPS25970x, TPS25974x Variants)

Figure 7-12 Overcurrent Threshold vs ILM Resistor

Figure 7-14 Analog Current Monitor Gain Accuracy

Figure 7-16 OVC Threshold vs Temperature (TPS25972x Variant)

Figure 7-18 OVC Clamping Voltage (OVCSEL = OPEN) vs Load Current (TPS25972x Variant)

Figure 7-20 ITIMER Discharge Differential Voltage Threshold vs Temperature

Figure 7-22 ITIMER Internal Pullup Resistance vs Temperature

Figure 7-24 DVDT Charging Current vs Temperature

Figure 7-26 PGTH Threshold (Falling) vs Temperature (TPS25972x, TPS25974x Variants)

Figure 7-28 Time to Thermal Shut-Down During Inrush State

V_IN = 12 V, C_OUT = 22 μF, C_dVdt = Open, V_EN/UVLO ramped from 0 V → 1.4 V → 0 V

Figure 7-30 Power Up and Down With EN/UVLO Control

C_OUT = 22 μF, C_dVdt = Open, EN/UVLO connected to IN through resistor ladder, 12 V hot-plugged to IN

Figure 7-32 Input Hot-Plug

V_IN = 12 V, C_OUT = 470 μF, C_dVdt = 5100 pF, V_EN/UVLO stepped up to 3.3 V

Figure 7-34 Inrush Current With Slew Rate Control – Capacitive Load

OV threshold set to 16.7 V, V_IN ramped up from 12 V to 17 V

Figure 7-36 Overvoltage Lockout Response – TPS25970x and TPS25974x

R_OVCSEL = Open, C_OUT = 220 μF, I_OUT = 200 mA, V_IN ramped up from 5 V to 7.5 V

Figure 7-38 Overvoltage Clamp Response – TPS25972x

V_IN = 12 V, C_ITIMER = 1.3 nF, C_OUT = 220 μF, R_ILM = 715 Ω, I_OUT stepped from 0 A → 11 A

Figure 7-40 Active Current Limit Response – TPS25970x

V_IN = 12 V, C_ITIMER = 120 pF, C_OUT = 470 μF, R_ILM = 715 Ω, I_OUT ramped from 0 A → 8 A→ 4 A within 100 μs

Figure 7-42 Transient Overcurrent Blanking Timer Response

V_IN = 12 V, R_ILM = 715 Ω, OUT stepped from Open → Short-circuit to GND

Figure 7-44 Output Short-Circuit During Steady State

V_IN = 12 V, C_OUT = Open, OUT short-circuit to GND, R_ILM = 715 Ω, V_EN/UVLO stepped from 0 V to 3.3 V

Figure 7-46 Power Up into Short-Circuit

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