Datasheet LT3595 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | 16 Channel Buck Mode LED Driver |
| Pages / Page | 16 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS. Switching Frequency. Schottky … |
| File Format / Size | PDF / 382 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Switching Frequency. Schottky Leakage Current. Current Limit vs Temperature
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Text Version of Document
LT3595
TYPICAL PERFORMANCE CHARACTERISTICS Switching Frequency Schottky Leakage Current Current Limit vs Temperature vs Temperature vs Temperature
150 2.4 1.4 2.3 140 1.2 μA) 2.2 1.0 130 2.1 VIN = 45V 0.8 120 2.0 0.6 1.9 110 VIN = 24V CURRENT LIMIT (mA) 0.4 1.8 100 SWITCHING FREQUENCY (MHz) VIN = 4.5V 1.7 0.2 SCHOTTKY LEAKAGE CURRENT ( 90 1.6 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3595 G09 3595 G10 3595 G11
Switch Saturation Voltage (VCESAT) Schottky Forward Voltage Drop
700 100 600 80 500 T = –40°C 60 400 T = 125°C 300 T = 25°C 40 T = 125°C 200 T = 25°C 20 100 SWITCH SATURATION VOLTAGE (mV) SCHOTTKY FORWARD CURRENT (mA) T = – 40°C 0 0 0 20 40 60 80 100 0 0.2 0.4 0.6 0.8 1 SWITCH CURRENT (mA) SCHOTTKY FORWARD DROP (V) 3595 G13
Transient Response
⎯
O
⎯
P
⎯
E
⎯
N
⎯
L
⎯
E
⎯
D Waveforms
V I SHDN LED 5V/DIV CH 1 20mA/DIV VSW OPENLED 50V/DIV 5V/DIV VSW I CH 1 SW 50mA/DIV 50V/DIV ILED I CH 2 LED 20mA/DIV 20mA/DIV 3595 G14 3595 G15 100μs/DIV 20μs/DIV VIN = 45V V 10 LEDS AT 20mA IN = 45V 10 LEDS AT 20mA 3595f 5
TYPICAL PERFORMANCE CHARACTERISTICS Switching Frequency Schottky Leakage Current Current Limit vs Temperature vs Temperature vs Temperature
150 2.4 1.4 2.3 140 1.2 μA) 2.2 1.0 130 2.1 VIN = 45V 0.8 120 2.0 0.6 1.9 110 VIN = 24V CURRENT LIMIT (mA) 0.4 1.8 100 SWITCHING FREQUENCY (MHz) VIN = 4.5V 1.7 0.2 SCHOTTKY LEAKAGE CURRENT ( 90 1.6 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3595 G09 3595 G10 3595 G11
Switch Saturation Voltage (VCESAT) Schottky Forward Voltage Drop
700 100 600 80 500 T = –40°C 60 400 T = 125°C 300 T = 25°C 40 T = 125°C 200 T = 25°C 20 100 SWITCH SATURATION VOLTAGE (mV) SCHOTTKY FORWARD CURRENT (mA) T = – 40°C 0 0 0 20 40 60 80 100 0 0.2 0.4 0.6 0.8 1 SWITCH CURRENT (mA) SCHOTTKY FORWARD DROP (V) 3595 G13
Transient Response
⎯
O
⎯
P
⎯
E
⎯
N
⎯
L
⎯
E
⎯
D Waveforms
V I SHDN LED 5V/DIV CH 1 20mA/DIV VSW OPENLED 50V/DIV 5V/DIV VSW I CH 1 SW 50mA/DIV 50V/DIV ILED I CH 2 LED 20mA/DIV 20mA/DIV 3595 G14 3595 G15 100μs/DIV 20μs/DIV VIN = 45V V 10 LEDS AT 20mA IN = 45V 10 LEDS AT 20mA 3595f 5
