Datasheet LT3595A (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | 16 Channel Buck Mode LED Driver |
| 页数 / 页 | 16 / 3 — ELECTRICAL CHARACTERISTICS. The. denotes the specifi cations which apply … |
| 文件格式/大小 | PDF / 392 Kb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS. The. denotes the specifi cations which apply over the full operating
该数据表的模型线
文件文字版本
LT3595A
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C, VIN = 45V, VCC = 3.3V, PWM = SHDN = OPENLED = 3.3V, RSET = 75k
Ω
, GND = 0V, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Operating Voltage 4.5 V VCC Operating Voltage 3 5.5 V VCC Input Under Voltage Lockout 2.6 2.9 V IVIN Quiescent Current ON, No Switching 0.25 mA IVIN Quiescent Current in Shutdown SHDN = 0V 15 40 μA IVCC Quiescent Current ON, No Switching VCC = 3.3V 17 mA IVCC Quiescent Current in Shutdown VCC = 3.3V, SHDN = 0V 3 10 μA IL1-16 Output Current Accuracy RSET = 75kΩ 18.6 20 21.4 mA IL1-16 Channel-to-Channel Matching RSET = 75kΩ l ±1 ±4 % Switching Frequency 1.6 2 2.4 MHz Maximum Duty Cycle l 80 85 % Switch Current Limit l 90 120 150 mA Switch VCESAT ISW1-16 = 50mA 450 mV Switch Leakage Current VSW1-16 = 45V 0.1 6 μA Schottky Forward Drop ISCHOTTKY = 50mA 0.8 V Schottky Leakage Current VSW1-16 = 0.7V, SHDN = 0V 0.1 4 μA SHDN, PWM1-16 Input Low Voltage 0.4 V SHDN, PWM1-16 Input High Voltage 1.6 V SHDN Pin Bias Current SHDN = 3.3V 35 μA PWM1-16 Pin Bias Current PWM1-16 = 3.3V 0.1 1 μA OPENLED Pin Voltage VCC = 3.3V, IOPENLED = 200μA 0.12 V OPENLED Pin Input Leakage Current OPENLED = 3.3V 0.1 1 μA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 2:
The LT3595A is guaranteed to meet performance specifi cations may cause permanent damage to the device. Exposure to any Absolute from 0°C to 125°C junction temperature. Specifi cations over the –40°C Maximum Rating condition for extended periods may affect device to 125°C operating junction temperature range are assured by design, reliability and lifetime. characterization and correlation with statistical process controls. 3595af 3
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C, VIN = 45V, VCC = 3.3V, PWM = SHDN = OPENLED = 3.3V, RSET = 75k
Ω
, GND = 0V, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Operating Voltage 4.5 V VCC Operating Voltage 3 5.5 V VCC Input Under Voltage Lockout 2.6 2.9 V IVIN Quiescent Current ON, No Switching 0.25 mA IVIN Quiescent Current in Shutdown SHDN = 0V 15 40 μA IVCC Quiescent Current ON, No Switching VCC = 3.3V 17 mA IVCC Quiescent Current in Shutdown VCC = 3.3V, SHDN = 0V 3 10 μA IL1-16 Output Current Accuracy RSET = 75kΩ 18.6 20 21.4 mA IL1-16 Channel-to-Channel Matching RSET = 75kΩ l ±1 ±4 % Switching Frequency 1.6 2 2.4 MHz Maximum Duty Cycle l 80 85 % Switch Current Limit l 90 120 150 mA Switch VCESAT ISW1-16 = 50mA 450 mV Switch Leakage Current VSW1-16 = 45V 0.1 6 μA Schottky Forward Drop ISCHOTTKY = 50mA 0.8 V Schottky Leakage Current VSW1-16 = 0.7V, SHDN = 0V 0.1 4 μA SHDN, PWM1-16 Input Low Voltage 0.4 V SHDN, PWM1-16 Input High Voltage 1.6 V SHDN Pin Bias Current SHDN = 3.3V 35 μA PWM1-16 Pin Bias Current PWM1-16 = 3.3V 0.1 1 μA OPENLED Pin Voltage VCC = 3.3V, IOPENLED = 200μA 0.12 V OPENLED Pin Input Leakage Current OPENLED = 3.3V 0.1 1 μA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 2:
The LT3595A is guaranteed to meet performance specifi cations may cause permanent damage to the device. Exposure to any Absolute from 0°C to 125°C junction temperature. Specifi cations over the –40°C Maximum Rating condition for extended periods may affect device to 125°C operating junction temperature range are assured by design, reliability and lifetime. characterization and correlation with statistical process controls. 3595af 3