Datasheet LTC3109 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | Auto-Polarity, Ultralow Voltage Step-Up Converter and Power Manager |
| Pages / Page | 24 / 5 — Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. … |
| File Format / Size | PDF / 424 Kb |
| Document Language | English |
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. VAUX Clamp Voltage. PVOUT vs dT and TEG Size,
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LTC3109
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. VAUX Clamp Voltage PVOUT vs dT and TEG Size, VOUT and VLDO vs Temperature vs Shunt Current 1:100 Ratio, VOUT = 5V
1.00 5.5 3.0 0.75 2.5 5.4 0.50 FERROTEC 9500/127/100B 40mm VLDO 2.0 0.25 5.3 (V) 0 VOUT (mW) 1.5 VAUX –0.25 5.2 P VOUT 1.0 –0.50 5.1 CHANGE (%) (RELATIVE TO 25°C) 0.5 –0.75 FERROTEC 9501/071/040B 22mm –1.00 5.0 0 –50 –25 0 25 50 75 100 125 0 3 6 9 12 15 0 1 2 3 4 5 6 7 8 9 10 TEMPERATURE (°C) VAUX SHUNT CURRENT (mA) dT (°K) 3109 G06 3109 G07 3109 G08
Resonant Switching Waveforms LDO Load Regulation LDO Dropout Voltage
0.00 0.20 0.18 C1 A OR B 0.16 –0.25 2V/DIV 0.14 C2 A OR B 0.12 2V/DIV –0.50 0.10 0.08 DROP IN VLDO (%) 0.06 –0.75 DROPOUT VOLTAGE (V) 0.04 20µs/DIV 3109 G9 0.02 –1.00 0.00 0 0.5 1 1.5 2 2.5 3 3.5 4 0 0.5 1 1.5 2 2.5 3 3.5 4 LDO LOAD (mA) LDO LOAD (mA) 3109 G10 3109 G11
VOUT and PGOOD Response Start-Up Voltage Sequencing During a Step Load VOUT Ripple
VIN = 50mV 50mA LOAD STEP 30µA LOAD 1:100 RATIO TRANSFORMER COUT = 220µF COUT = 220µF COUT = 220µF C CH1 STORE = 470µF C VSTORE LDO = 2.2µF 1V/DIV CH2 20mV/ VOUT DIV CH2, VOUT 1V/DIV 1V/DIV CH3, VLDO CH1 1V/DIV PGD 1V/DIV 3109 G12 3109 G13 3109 G14 10SEC/DIV 5ms/DIV 100ms/DIV 3109fb For more information www.linear.com/LTC3109 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. VAUX Clamp Voltage PVOUT vs dT and TEG Size, VOUT and VLDO vs Temperature vs Shunt Current 1:100 Ratio, VOUT = 5V
1.00 5.5 3.0 0.75 2.5 5.4 0.50 FERROTEC 9500/127/100B 40mm VLDO 2.0 0.25 5.3 (V) 0 VOUT (mW) 1.5 VAUX –0.25 5.2 P VOUT 1.0 –0.50 5.1 CHANGE (%) (RELATIVE TO 25°C) 0.5 –0.75 FERROTEC 9501/071/040B 22mm –1.00 5.0 0 –50 –25 0 25 50 75 100 125 0 3 6 9 12 15 0 1 2 3 4 5 6 7 8 9 10 TEMPERATURE (°C) VAUX SHUNT CURRENT (mA) dT (°K) 3109 G06 3109 G07 3109 G08
Resonant Switching Waveforms LDO Load Regulation LDO Dropout Voltage
0.00 0.20 0.18 C1 A OR B 0.16 –0.25 2V/DIV 0.14 C2 A OR B 0.12 2V/DIV –0.50 0.10 0.08 DROP IN VLDO (%) 0.06 –0.75 DROPOUT VOLTAGE (V) 0.04 20µs/DIV 3109 G9 0.02 –1.00 0.00 0 0.5 1 1.5 2 2.5 3 3.5 4 0 0.5 1 1.5 2 2.5 3 3.5 4 LDO LOAD (mA) LDO LOAD (mA) 3109 G10 3109 G11
VOUT and PGOOD Response Start-Up Voltage Sequencing During a Step Load VOUT Ripple
VIN = 50mV 50mA LOAD STEP 30µA LOAD 1:100 RATIO TRANSFORMER COUT = 220µF COUT = 220µF COUT = 220µF C CH1 STORE = 470µF C VSTORE LDO = 2.2µF 1V/DIV CH2 20mV/ VOUT DIV CH2, VOUT 1V/DIV 1V/DIV CH3, VLDO CH1 1V/DIV PGD 1V/DIV 3109 G12 3109 G13 3109 G14 10SEC/DIV 5ms/DIV 100ms/DIV 3109fb For more information www.linear.com/LTC3109 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts
