Datasheet LTC3824 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | High Voltage Step-Down Controller With 40µA Quiescent Current |
| Pages / Page | 16 / 5 — Typical perForMance characTerisTics TA = 25°C unless otherwise noted. … |
| File Format / Size | PDF / 385 Kb |
| Document Language | English |
Typical perForMance characTerisTics TA = 25°C unless otherwise noted. Switching Frequency Change
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Text Version of Document
LTC3824
Typical perForMance characTerisTics TA = 25°C unless otherwise noted. Switching Frequency Change (VCC – VCAP) vs IGATE at VDRIVE Low ICC vs VCC vs VCC at RSET = 392kΩ
8.5 3 3 8.4 2 8.3 8.2 2 1 (V) 8.1 CAP V -V (mA) 0 8.0 FB = 0.75V I CC V CC 7.9 1 V FREQUENCY (kHz) –1 FB = 0.85V Δ 7.8 –2 7.7 7.6 0 –3 0 10 20 30 40 50 0 10 20 30 40 50 60 0 10 20 30 40 50 60 IGATE (mA) V V 3824 G01 CC (V) 3824 G02 CC (V) 3824 G03
VREF Change vs VCC Switching Frequency vs RSET
∆
VREF vs Temperature
0.4 700 5 4 600 0.2 3 500 2 (mV) 0 (mV) 400 V REF 1 Δ ∆V REF FREQUENCY (kHz) 300 –0.2 0 200 –1 –0.4 100 –2 0 10 20 30 40 50 60 100 200 300 400 –75 –50 –25 0 25 50 75 100 125 150 VCC (V) R DIE TEMPERATURE (°C) SET(kΩ) 3824 G05 3824 G04 3824 G06 3824fh For more information www.linear.com/LTC3824 5 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Applications Information Typical Application Related Parts
Typical perForMance characTerisTics TA = 25°C unless otherwise noted. Switching Frequency Change (VCC – VCAP) vs IGATE at VDRIVE Low ICC vs VCC vs VCC at RSET = 392kΩ
8.5 3 3 8.4 2 8.3 8.2 2 1 (V) 8.1 CAP V -V (mA) 0 8.0 FB = 0.75V I CC V CC 7.9 1 V FREQUENCY (kHz) –1 FB = 0.85V Δ 7.8 –2 7.7 7.6 0 –3 0 10 20 30 40 50 0 10 20 30 40 50 60 0 10 20 30 40 50 60 IGATE (mA) V V 3824 G01 CC (V) 3824 G02 CC (V) 3824 G03
VREF Change vs VCC Switching Frequency vs RSET
∆
VREF vs Temperature
0.4 700 5 4 600 0.2 3 500 2 (mV) 0 (mV) 400 V REF 1 Δ ∆V REF FREQUENCY (kHz) 300 –0.2 0 200 –1 –0.4 100 –2 0 10 20 30 40 50 60 100 200 300 400 –75 –50 –25 0 25 50 75 100 125 150 VCC (V) R DIE TEMPERATURE (°C) SET(kΩ) 3824 G05 3824 G04 3824 G06 3824fh For more information www.linear.com/LTC3824 5 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Applications Information Typical Application Related Parts
