Datasheet LTC4418 (Linear Technology) - 6
| 制造商 | Linear Technology |
| 描述 | Dual Channel Prioritized PowerPath Controller |
| 页数 / 页 | 30 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| 文件格式/大小 | PDF / 1.1 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Validation Time. OV, UV Hysteresis Current
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LTC4418
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Validation Time OV, UV Hysteresis Current OV, UV Threshold vs Temperature vs TMR Capacitance Configuration
1.04 10k 500 V1/2 = 12V 1.03 UV RISING THRESHOLD 400 1.02 1k 1.01 Y (ms) 300 (V) 1.00 100 (nA) V TH VTH I EXT 0.99 TION DELA 200 0.98 VALIDA 10 100 0.97 OV FALLING THRESHOLD 0.96 1 0 –50 –25 0 25 50 75 100 0.1 1 10 100 1k 0 1000 2000 3000 4000 TEMPERATURE (°C) CTMR (nF) IHYS (nA) 4418 G10 4418 G11 4418 G12
INTVCC VALID1, VALID2 vs Input Voltage (V1, V2, VOUT) Pull-Down Strength Deglitched Connection
4.0 1.0 3.5 90°C V2 0.8 3.0 2V/DIV 25°C VOUT 2.5 (V) 0.6 (V) V1 –45°C 2.0 (OL) 2V/DIV V CC INT 1.5 0.4 V VALID 1.0 0.2 4418 G15 0.5 V1/V2 = 12V 5ms/DIV V C OUT = 12V TMR = 1nF 0 0 COUT = 120µF 0 8 16 24 32 40 0 1 2 3 4 5 ILOAD = 1A –40A PCH FDS4685 INPUT VOLTAGE (V) PULL-UP CURRENT (mA) 4418 G13 4418 G14
VOUT Switching from Lower VOUT Switching from Higher to to Higher Voltage with Inrush Lower Voltage Current Limiting Circuitry Reverse Voltage Blocking
V2, VOUT V2 V2 5V/DIV 2V/DIV 4V/DIV V1 V V1 = +15V OUT 5V/DIV VOUT V1 2V/DIV 4V/DIV V1 2V/DIV IV2 10A/DIV V1 = –15V 4418 G17 4418 G18 500µs/DIV 4418 G16 50µs/DIV 2ms/DIV COUT = 120µF RS = 475Ω –40V PCH FDD4685 ILOAD = 2A CS = 47nF C –20V PCH FDS4465 C OUT = 10µF OUT = 120µF I I LOAD = 1A LOAD = 2A –20V PCH FDS4465 4418f 6 For more information www.linear.com/LTC4418 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Timing Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Validation Time OV, UV Hysteresis Current OV, UV Threshold vs Temperature vs TMR Capacitance Configuration
1.04 10k 500 V1/2 = 12V 1.03 UV RISING THRESHOLD 400 1.02 1k 1.01 Y (ms) 300 (V) 1.00 100 (nA) V TH VTH I EXT 0.99 TION DELA 200 0.98 VALIDA 10 100 0.97 OV FALLING THRESHOLD 0.96 1 0 –50 –25 0 25 50 75 100 0.1 1 10 100 1k 0 1000 2000 3000 4000 TEMPERATURE (°C) CTMR (nF) IHYS (nA) 4418 G10 4418 G11 4418 G12
INTVCC VALID1, VALID2 vs Input Voltage (V1, V2, VOUT) Pull-Down Strength Deglitched Connection
4.0 1.0 3.5 90°C V2 0.8 3.0 2V/DIV 25°C VOUT 2.5 (V) 0.6 (V) V1 –45°C 2.0 (OL) 2V/DIV V CC INT 1.5 0.4 V VALID 1.0 0.2 4418 G15 0.5 V1/V2 = 12V 5ms/DIV V C OUT = 12V TMR = 1nF 0 0 COUT = 120µF 0 8 16 24 32 40 0 1 2 3 4 5 ILOAD = 1A –40A PCH FDS4685 INPUT VOLTAGE (V) PULL-UP CURRENT (mA) 4418 G13 4418 G14
VOUT Switching from Lower VOUT Switching from Higher to to Higher Voltage with Inrush Lower Voltage Current Limiting Circuitry Reverse Voltage Blocking
V2, VOUT V2 V2 5V/DIV 2V/DIV 4V/DIV V1 V V1 = +15V OUT 5V/DIV VOUT V1 2V/DIV 4V/DIV V1 2V/DIV IV2 10A/DIV V1 = –15V 4418 G17 4418 G18 500µs/DIV 4418 G16 50µs/DIV 2ms/DIV COUT = 120µF RS = 475Ω –40V PCH FDD4685 ILOAD = 2A CS = 47nF C –20V PCH FDS4465 C OUT = 10µF OUT = 120µF I I LOAD = 1A LOAD = 2A –20V PCH FDS4465 4418f 6 For more information www.linear.com/LTC4418 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Timing Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts