Datasheet MAX1795, MAX1796, MAX1797 (Maxim) - 6
| 制造商 | Maxim |
| 描述 | Low-Supply Current, Step-Up DC-DC Converters with True Shutdown |
| 页数 / 页 | 13 / 6 — Typical Operating Characteristics (continued). MAX1795. LOW-BATTERY INPUT … |
| 文件格式/大小 | PDF / 2.1 Mb |
| 文件语言 | 英语 |
Typical Operating Characteristics (continued). MAX1795. LOW-BATTERY INPUT THRESHOLD. MAXIMUM OUTPUT CURRENT
该数据表的模型线
文件文字版本
MAX1795/MAX1796/ Low-Supply Current, Step-Up DC-DC Converters MAX1797 with True Shutdown
Typical Operating Characteristics (continued)
(L = 22μH, CIN = 47μF, COUT = 47μF, TA = +25°C, unless otherwise noted.)
MAX1795 LOW-BATTERY INPUT THRESHOLD LOW-BATTERY INPUT THRESHOLD MAXIMUM OUTPUT CURRENT vs. INPUT BATT VOLTAGE vs. TEMPERATURE vs. BATT INPUT VOLTAGE
0.950 0.950 250 VBATT = +3.6V 0.925 0.925 200 MAX1795/96/97 toc10 MAX1795/96/97 toc11 VOUT = +3.3V MAX1795/96/97 toc12 0.900 0.900 INCREASING VLBI INCREASING VLBI 150 0.875 0.875 VOUT = +5.0V 100 0.850 DECREASING V 0.850 LBI DECREASING VLBI LOAD CURRENT (mA) 0.825 0.825 50 LOW-BATTERY INPUT THRESHOLD (V) LOW-BATTERY INPUT THRESHOLD (V) 0.800 0.800 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 -40 -15 10 35 60 85 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 BATT VOLTAGE (V) TEMPERATURE (°C) BATT VOLTAGE (V)
MAX1796 MAX1797 MAXIMUM OUTPUT CURRENT MAXIMUM OUTPUT CURRENT vs. BATT INPUT VOLTAGE vs. BATT INPUT VOLTAGE
500 1000 400 800 MAX1795/96/97 toc13 MAX1795/96/97 toc14 VOUT = +3.3V 300 600 VOUT = +3.3V 200 400 VOUT = +5.0V LOAD CURRENT (mA) VOUT = +5.0V LOAD CURRENT (mA) 100 200 0 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 BATT VOLTAGE (V) BATT VOLTAGE (V)
OUT LEAKAGE CURRENT vs. OUTPUT VOLTAGE HEAVY-LOAD SWITCHING WAVEFORMS
2.0 MAX1795/96/97 toc16 SHDN = BATT VOUT = +5V VLX 1.6 VBATT = +2.4V 5V/div MAX1795/96/97 toc15 1.2 IINDUCTOR 500mA/div 0.8 VOUT OUT LEAKAGE CURRENT (A) 0.4 OUT BIASED WITH (AC-COUPLED) EXTERNAL VOLTAGE 100mV/div SOURCE 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 4.00µs/div OUTPUT VOLTAGE (V) VIN = +3.6V VOUT = +5.0V ILOAD = 400mA www.maximintegrated.com Maxim Integrated │ 6
Typical Operating Characteristics (continued)
(L = 22μH, CIN = 47μF, COUT = 47μF, TA = +25°C, unless otherwise noted.)
MAX1795 LOW-BATTERY INPUT THRESHOLD LOW-BATTERY INPUT THRESHOLD MAXIMUM OUTPUT CURRENT vs. INPUT BATT VOLTAGE vs. TEMPERATURE vs. BATT INPUT VOLTAGE
0.950 0.950 250 VBATT = +3.6V 0.925 0.925 200 MAX1795/96/97 toc10 MAX1795/96/97 toc11 VOUT = +3.3V MAX1795/96/97 toc12 0.900 0.900 INCREASING VLBI INCREASING VLBI 150 0.875 0.875 VOUT = +5.0V 100 0.850 DECREASING V 0.850 LBI DECREASING VLBI LOAD CURRENT (mA) 0.825 0.825 50 LOW-BATTERY INPUT THRESHOLD (V) LOW-BATTERY INPUT THRESHOLD (V) 0.800 0.800 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 -40 -15 10 35 60 85 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 BATT VOLTAGE (V) TEMPERATURE (°C) BATT VOLTAGE (V)
MAX1796 MAX1797 MAXIMUM OUTPUT CURRENT MAXIMUM OUTPUT CURRENT vs. BATT INPUT VOLTAGE vs. BATT INPUT VOLTAGE
500 1000 400 800 MAX1795/96/97 toc13 MAX1795/96/97 toc14 VOUT = +3.3V 300 600 VOUT = +3.3V 200 400 VOUT = +5.0V LOAD CURRENT (mA) VOUT = +5.0V LOAD CURRENT (mA) 100 200 0 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 BATT VOLTAGE (V) BATT VOLTAGE (V)
OUT LEAKAGE CURRENT vs. OUTPUT VOLTAGE HEAVY-LOAD SWITCHING WAVEFORMS
2.0 MAX1795/96/97 toc16 SHDN = BATT VOUT = +5V VLX 1.6 VBATT = +2.4V 5V/div MAX1795/96/97 toc15 1.2 IINDUCTOR 500mA/div 0.8 VOUT OUT LEAKAGE CURRENT (A) 0.4 OUT BIASED WITH (AC-COUPLED) EXTERNAL VOLTAGE 100mV/div SOURCE 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 4.00µs/div OUTPUT VOLTAGE (V) VIN = +3.6V VOUT = +5.0V ILOAD = 400mA www.maximintegrated.com Maxim Integrated │ 6