Datasheet LTC3862 (Linear Technology) - 8
| Manufacturer | Linear Technology |
| Description | Multi-Phase Current Mode Step-Up DC/DC Controller |
| Pages / Page | 42 / 8 — Typical perForMance characTerisTics. Oscillator Frequency vs. Input … |
| Revision | C |
| File Format / Size | PDF / 1.0 Mb |
| Document Language | English |
Typical perForMance characTerisTics. Oscillator Frequency vs. Input Voltage. RFREQ vs Frequency. Frequency vs PLLFLTR Voltage
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LTC3862
Typical perForMance characTerisTics Oscillator Frequency vs Input Voltage RFREQ vs Frequency Frequency vs PLLFLTR Voltage
320 1000 1400 315 1200 310 1000 305 800 300 (kΩ) 100 600 295 R FREQ FREQUENCY (kHz) FREQUENCY (kHz) 400 290 285 200 280 10 0 0 4 8 12 16 20 24 28 32 36 0 100 200 300 400 500 600 700 800 900 1000 0 0.5 1 1.5 2 2.5 INPUT VOLTAGE (V) FREQUENCY (kHz) PLLFLTR VOLTAGE (V) 3862 G27 3862 G28 3862 G29
Frequency Voltage vs Minimum On-Time vs Minimum On-Time vs Temperature Temperature Input Voltage
1.235 400 400 1.233 1.231 350 BLANK = 3V8 350 BLANK = 3V8 1.229 1.227 300 300 1.225 BLANK = FLOAT BLANK = FLOAT 1.223 250 250 1.221 FREQ VOLTAGE (V) 1.219 200 200 BLANK = SGND BLANK = SGND 1.217 MINIMUM ON-TIME (ns) MINIMUM ON-TIME (ns) 1.215 150 150 1.213 1.211 100 100 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 4 8 12 16 20 24 28 32 36 TEMPERATURE (°C) TEMPERATURE (°C) INPUT VOLTAGE (V) 3862 G30 3862 G31 3862 G32
Gate Turn-On Waveform Driving Gate Turn-Off Waveform Driving Renesas HAT2266 Renesas HAT2266
GATE GATE 1V/DIV 1V/DIV V 3862 G33 3862 G34 IN = 12V 20ns/DIV VIN = 12V 20ns/DIV VOUT = 48V VOUT = 48V IOUT = 1A IOUT = 1A MOSFET RENESAS HAT2266 MOSFET RENESAS HAT2266 3862fc 8 For more information www.linear.com/LTC3862 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
Typical perForMance characTerisTics Oscillator Frequency vs Input Voltage RFREQ vs Frequency Frequency vs PLLFLTR Voltage
320 1000 1400 315 1200 310 1000 305 800 300 (kΩ) 100 600 295 R FREQ FREQUENCY (kHz) FREQUENCY (kHz) 400 290 285 200 280 10 0 0 4 8 12 16 20 24 28 32 36 0 100 200 300 400 500 600 700 800 900 1000 0 0.5 1 1.5 2 2.5 INPUT VOLTAGE (V) FREQUENCY (kHz) PLLFLTR VOLTAGE (V) 3862 G27 3862 G28 3862 G29
Frequency Voltage vs Minimum On-Time vs Minimum On-Time vs Temperature Temperature Input Voltage
1.235 400 400 1.233 1.231 350 BLANK = 3V8 350 BLANK = 3V8 1.229 1.227 300 300 1.225 BLANK = FLOAT BLANK = FLOAT 1.223 250 250 1.221 FREQ VOLTAGE (V) 1.219 200 200 BLANK = SGND BLANK = SGND 1.217 MINIMUM ON-TIME (ns) MINIMUM ON-TIME (ns) 1.215 150 150 1.213 1.211 100 100 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 4 8 12 16 20 24 28 32 36 TEMPERATURE (°C) TEMPERATURE (°C) INPUT VOLTAGE (V) 3862 G30 3862 G31 3862 G32
Gate Turn-On Waveform Driving Gate Turn-Off Waveform Driving Renesas HAT2266 Renesas HAT2266
GATE GATE 1V/DIV 1V/DIV V 3862 G33 3862 G34 IN = 12V 20ns/DIV VIN = 12V 20ns/DIV VOUT = 48V VOUT = 48V IOUT = 1A IOUT = 1A MOSFET RENESAS HAT2266 MOSFET RENESAS HAT2266 3862fc 8 For more information www.linear.com/LTC3862 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
