Datasheet LTC3850, LTC3850-1 (Analog Devices) - 8
| Manufacturer | Analog Devices |
| Description | Dual, 2-Phase Synchronous Step-Down Switching Controller |
| Pages / Page | 38 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS. Shutdown (RUN) Threshold. Regulated … |
| Revision | D |
| File Format / Size | PDF / 1.2 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Shutdown (RUN) Threshold. Regulated Feedback Voltage. Oscillator Frequency. vs Temperature
Model Line for this Datasheet
- LTC3850EGN#PBF LTC3850EGN#TRPBF LTC3850EGN#WPBF LTC3850EGN#WTRPBF LTC3850EGN-1#PBF LTC3850EGN-1#TRPBF LTC3850EGN-1#WPBF LTC3850EGN-1#WTRPBF LTC3850EUF#PBF LTC3850EUF#TRPBF LTC3850EUFD#PBF LTC3850EUFD#TRPBF LTC3850IGN#PBF LTC3850IGN#TRPBF LTC3850IGN#WPBF LTC3850IGN#WTRPBF LTC3850IGN-1#PBF LTC3850IGN-1#TRPBF LTC3850IGN-1#WPBF LTC3850IGN-1#WTRPBF LTC3850IUF#PBF LTC3850IUF#TRPBF LTC3850IUFD#PBF LTC3850IUFD#TRPBF
Text Version of Document
LTC3850/LTC3850-1
TYPICAL PERFORMANCE CHARACTERISTICS Shutdown (RUN) Threshold Regulated Feedback Voltage Oscillator Frequency vs Temperature vs Temperature vs Temperature
1.5 806 900 VFREQ = INTVCC 804 800 1.4 700 802 1.3 600 ON 800 VFREQ = 1.2V 1.2 500 OFF 798 FREQUENCY (kHz) RUN PIN VOLTAGE (V) 400 1.1 796 300 REGULATED FEEDBACK VOLTAGE (mV) VFREQ = 0V 1.0 794 200 –50 –25 0 25 50 75 100 –50 –25 0 25 50 75 100 –50 –25 0 25 50 75 100 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 38501 G18 38501 G19 38501 G20
Undervoltage Lockout Threshold Oscillator Frequency Shutdown Current (INTVCC) vs Temperature vs Input Voltage vs Input Voltage
5 420 50 4 40 RISING 410 3 30 FALLING 400 VOLTAGE (V) CC 2 20 INTV FREQUENCY (kHz) 390 INPUT CURRENT (µA) 1 10 0 380 0 –50 –25 0 25 50 75 100 5 10 15 20 25 5 10 15 20 25 TEMPERATURE (°C) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 38501 G21 38501 G22 38501 G23
Shutdown Current Quiescent Current vs Temperature vs Temperature without EXTVCC
50 5 VIN = 15V 40 4 30 3 20 2 SHUTDOWN CURRENT (µA) 10 QUIESCENT CURRENT (mA) 1 0 0 –50 –25 0 25 50 75 100 –50 –25 0 25 50 75 100 TEMPERATURE (°C) TEMPERATURE (°C) 38501 G24 38501 G25 Rev. D 8 For more information www.analog.com Document Outline Features Applications Typical Application Description 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 Shutdown (RUN) Threshold Regulated Feedback Voltage Oscillator Frequency vs Temperature vs Temperature vs Temperature
1.5 806 900 VFREQ = INTVCC 804 800 1.4 700 802 1.3 600 ON 800 VFREQ = 1.2V 1.2 500 OFF 798 FREQUENCY (kHz) RUN PIN VOLTAGE (V) 400 1.1 796 300 REGULATED FEEDBACK VOLTAGE (mV) VFREQ = 0V 1.0 794 200 –50 –25 0 25 50 75 100 –50 –25 0 25 50 75 100 –50 –25 0 25 50 75 100 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 38501 G18 38501 G19 38501 G20
Undervoltage Lockout Threshold Oscillator Frequency Shutdown Current (INTVCC) vs Temperature vs Input Voltage vs Input Voltage
5 420 50 4 40 RISING 410 3 30 FALLING 400 VOLTAGE (V) CC 2 20 INTV FREQUENCY (kHz) 390 INPUT CURRENT (µA) 1 10 0 380 0 –50 –25 0 25 50 75 100 5 10 15 20 25 5 10 15 20 25 TEMPERATURE (°C) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 38501 G21 38501 G22 38501 G23
Shutdown Current Quiescent Current vs Temperature vs Temperature without EXTVCC
50 5 VIN = 15V 40 4 30 3 20 2 SHUTDOWN CURRENT (µA) 10 QUIESCENT CURRENT (mA) 1 0 0 –50 –25 0 25 50 75 100 –50 –25 0 25 50 75 100 TEMPERATURE (°C) TEMPERATURE (°C) 38501 G24 38501 G25 Rev. D 8 For more information www.analog.com Document Outline Features Applications Typical Application Description 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
