Datasheet LT3750 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | Capacitor Charger Controller |
| Pages / Page | 16 / 3 — TYPICAL PERFOR A CE CHARACTERISTICS. VCC Pin Current. VTRANS Pin Current. … |
| File Format / Size | PDF / 228 Kb |
| Document Language | English |
TYPICAL PERFOR A CE CHARACTERISTICS. VCC Pin Current. VTRANS Pin Current. CHARGE Pin Current. CHARGE Pin Enable/Disable Voltage
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Text Version of Document
LT3750
W U TYPICAL PERFOR A CE CHARACTERISTICS VCC Pin Current VTRANS Pin Current CHARGE Pin Current
1.8 225 45 V 40 –50°C TRANS = 24V 1.7 VCC = 24V 200 µA) 35 V µA) TRANS = 12V 30 1.6 VCC = 12V 175 25 25°C VTRANS = 3V 20 1.5 PIN CURRENT ( 150 PIN CURRENT (mA) VCC = 3V 15 125°C CCV TRANSV 1.4 125 CHARGE PIN CURRENT ( 10 5 1.3 100 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 0 4 8 12 16 20 24 TEMPERATURE (°C) TEMPERATURE (°C) VCHARGE (V) 3750 G01 3750 G02 3750 G03
CHARGE Pin Enable/Disable Voltage DONE Output Signal Low GATE High Voltage
0.9 160 25 VDONE = 5V R 0.8 DONE = 100k VCC = 24V 20 140 0.7 CHARGE PIN ENABLE 15 0.6 120 CHARGE PIN DISABLE VCC = 12V 0.5 10 0.4 GATE PIN VOLTAGE (V) CHARGE PIN VOLTAGE (V) DONE PIN VOLTAGE (mV) 100 5 VCC = 5V 0.3 0.2 80 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) 3750 G04 3750 G05 3750 G06
Current Limit Comparator Trip DCM Comparator Trip Voltage VOUT Comparator Trip Voltage Voltage
60 1.240 82 RDCM = 43k 50 1.236 80 40 1.232 78 30 1.228 76 20 COMPARATOR TRIP VOLTAGE (V) 1.224 74 OUT DCM COMPARATOR TRIP VOLTAGE (mV) V 10 1.220 72 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 CURRENT LIMIT COMPARATOR TRIP VOLTAGE (mV) –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3750 G07 3750 G08 3750 G09 3750fa 3
W U TYPICAL PERFOR A CE CHARACTERISTICS VCC Pin Current VTRANS Pin Current CHARGE Pin Current
1.8 225 45 V 40 –50°C TRANS = 24V 1.7 VCC = 24V 200 µA) 35 V µA) TRANS = 12V 30 1.6 VCC = 12V 175 25 25°C VTRANS = 3V 20 1.5 PIN CURRENT ( 150 PIN CURRENT (mA) VCC = 3V 15 125°C CCV TRANSV 1.4 125 CHARGE PIN CURRENT ( 10 5 1.3 100 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 0 4 8 12 16 20 24 TEMPERATURE (°C) TEMPERATURE (°C) VCHARGE (V) 3750 G01 3750 G02 3750 G03
CHARGE Pin Enable/Disable Voltage DONE Output Signal Low GATE High Voltage
0.9 160 25 VDONE = 5V R 0.8 DONE = 100k VCC = 24V 20 140 0.7 CHARGE PIN ENABLE 15 0.6 120 CHARGE PIN DISABLE VCC = 12V 0.5 10 0.4 GATE PIN VOLTAGE (V) CHARGE PIN VOLTAGE (V) DONE PIN VOLTAGE (mV) 100 5 VCC = 5V 0.3 0.2 80 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) 3750 G04 3750 G05 3750 G06
Current Limit Comparator Trip DCM Comparator Trip Voltage VOUT Comparator Trip Voltage Voltage
60 1.240 82 RDCM = 43k 50 1.236 80 40 1.232 78 30 1.228 76 20 COMPARATOR TRIP VOLTAGE (V) 1.224 74 OUT DCM COMPARATOR TRIP VOLTAGE (mV) V 10 1.220 72 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 CURRENT LIMIT COMPARATOR TRIP VOLTAGE (mV) –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3750 G07 3750 G08 3750 G09 3750fa 3
