Datasheet CAT4101 (ON Semiconductor) - 2
| 制造商 | ON Semiconductor |
| 描述 | 1 A Constant-Current LED Driver with PWM Dimming |
| 页数 / 页 | 10 / 2 — CAT4101. Table 1. ABSOLUTE MAXIMUM RATINGS. Parameter. Rating. Units. … |
| 文件格式/大小 | PDF / 220 Kb |
| 文件语言 | 英语 |
CAT4101. Table 1. ABSOLUTE MAXIMUM RATINGS. Parameter. Rating. Units. Table 2. RECOMMENDED OPERATING CONDITIONS
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CAT4101 Table 1. ABSOLUTE MAXIMUM RATINGS Parameter Rating Units
VIN, RSET, EN/PWM Voltages 6 V LED Voltage 25 V Storage Temperature Range −65 to +150 _C Junction Temperature Range −40 to +150 _C Lead Temperature 300 _C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Table 2. RECOMMENDED OPERATING CONDITIONS Parameter Rating Units
VIN Voltage 3.0 to 5.5 V LED Pin Voltage V device enabled, continuous operation Up to 6 device disabled or transient when enabled Up to 25 Ambient Temperature Range −40 to +85 _C LED Pin Current Up to 1 A NOTE: Typical application circuit with external components is shown on page 1. 1. For additional temperature options, please contact your nearest ON Semiconductor Sales office.
Table 3. ELECTRICAL OPERATING CHARACTERISTICS
(Min and Max values in
bold
are over recommended operating conditions unless specified otherwise. Typical values are at VIN = 5.0 V, TAMB = 25°C)
Symbol Parameter Conditions Min Typ Max Units
ILED−ACC LED Current Accuracy VLED = 1 V, RSET = 1.47 kW
315
350
385
mA VLED = 1 V, RSET = 750 W 700 VLED = 1 V, RSET = 549 W 1000 VDOUT Dropout Voltage ILED = 1 A 500 mV VRSET RSET Pin Voltage
1.17
1.20
1.23
V IQ Quiescent Current No LED, RSET = Floating 0.8 mA No LED, RSET = 549 W 8.0 IQSHDN Shutdown Current VEN = 0 V
1
mA EN/PWM Pin REN/PWM − Pull−down resistance 200 kW VHI − Logic High Level
1.3
V VLO − Logic Low Level
0.4
V TSD Thermal Shutdown 150 _C THYS Thermal Hysteresis 20 _C ILED/IRSET RSET to LED Current gain ratio 100 mA LED current 400 VUVLO Undervoltage lockout (UVLO) Threshold 2.0 V
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CAT4101 Table 1. ABSOLUTE MAXIMUM RATINGS Parameter Rating Units
VIN, RSET, EN/PWM Voltages 6 V LED Voltage 25 V Storage Temperature Range −65 to +150 _C Junction Temperature Range −40 to +150 _C Lead Temperature 300 _C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Table 2. RECOMMENDED OPERATING CONDITIONS Parameter Rating Units
VIN Voltage 3.0 to 5.5 V LED Pin Voltage V device enabled, continuous operation Up to 6 device disabled or transient when enabled Up to 25 Ambient Temperature Range −40 to +85 _C LED Pin Current Up to 1 A NOTE: Typical application circuit with external components is shown on page 1. 1. For additional temperature options, please contact your nearest ON Semiconductor Sales office.
Table 3. ELECTRICAL OPERATING CHARACTERISTICS
(Min and Max values in
bold
are over recommended operating conditions unless specified otherwise. Typical values are at VIN = 5.0 V, TAMB = 25°C)
Symbol Parameter Conditions Min Typ Max Units
ILED−ACC LED Current Accuracy VLED = 1 V, RSET = 1.47 kW
315
350
385
mA VLED = 1 V, RSET = 750 W 700 VLED = 1 V, RSET = 549 W 1000 VDOUT Dropout Voltage ILED = 1 A 500 mV VRSET RSET Pin Voltage
1.17
1.20
1.23
V IQ Quiescent Current No LED, RSET = Floating 0.8 mA No LED, RSET = 549 W 8.0 IQSHDN Shutdown Current VEN = 0 V
1
mA EN/PWM Pin REN/PWM − Pull−down resistance 200 kW VHI − Logic High Level
1.3
V VLO − Logic Low Level
0.4
V TSD Thermal Shutdown 150 _C THYS Thermal Hysteresis 20 _C ILED/IRSET RSET to LED Current gain ratio 100 mA LED current 400 VUVLO Undervoltage lockout (UVLO) Threshold 2.0 V
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