Datasheet ISL97801 (Intersil) - 2
| 制造商 | Intersil |
| 描述 | High Power LED Driver |
| 页数 / 页 | 20 / 2 — Absolute Maximum Ratings. Thermal Information. Operating Conditions. … |
| 文件格式/大小 | PDF / 1.3 Mb |
| 文件语言 | 英语 |
Absolute Maximum Ratings. Thermal Information. Operating Conditions. Electrical Specifications. PARAMETER. DESCRIPTION. CONDITIONS
该数据表的模型线
文件文字版本
link to page 2 link to page 2 ISL97801
Absolute Maximum Ratings
(TA = +25°C)
Thermal Information
Maximum pin voltage, all pins except below 6.5V Thermal Resistance JA (°C/W) / JC (°C/W) VIN, SWS1, SWS2, EN/PWM . .18V QFN-20 Package (Notes 1, 2) . 39 2.5 VBAT, FAULT, FB . .24V Maximum Junction Temperature . +135°C |VHI - SWS1, SWS2| . 6.5V Storage Temperature . .-65°C to +150°C SWD1, SWD2, OVP. .34V Continuous Output Current . .1A
Operating Conditions
Temperature Range . .-40°C to +105°C CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: TJ = TC = TA Operating continuously at a junction temperature of +135°C will shorten the life of the device while the thermal shutdown may trigger at a higher temperature than +135°C since it is a typical number. NOTE: 1. JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech Brief TB379. 2. For JC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
VBAT = VIN = 12V, VDC = 5V, TA = -40°C to +105°C unless otherwise specified.
PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT
VIN Input Supply Voltage IOUT = 350mA, 8 LEDs, BUCK/BOOSTN = 5 16 V GND VIN Input Supply Voltage IOUT = 350mA, 5 LEDs, BUCK/BOOSTN = 2.7 12 V GND, TMAX disabled VBAT Input Supply Monitor Normal operating range 2.7 16 V VBATFAULT Supply Fault Threshold If VBAT > VBATFAULT, FAULT pin is 17.6 21 24 V switched to ground ISEN Supply Current in VIN No switching, EN/PWM = 1 2.7 3.5 mA ISDIS Supply Current in VIN No switching, EN/PWM = 0 0.6 2.5 µA RSWITCH Power FET On Resistance ISWITCH = 600mA 0.15 0.25 VDC Regulated Auxiliary Supply 4.75 5 5.25 V ROUTOL Auxiliary Supply Open Loop Output VIN < VDC 40 Resistance ROUTCL Auxiliary Supply Closed Loop Output VIN > 6V, F < 100Hz 6.5 Resistance IOUT Output Drive Current 4 LED output string. VIN = VBAT = 10V 1 A ILIMBOOST Power Switch Current Limit BUCK/BOOSTN = GND 3.6 A ILIMBUCK Power Switch Current Limit BUCK/BOOSTN = VDC 2.4 A OVPH Over Voltage Positive Going Voltage Upper threshold to enter overvoltage fault 31 32 V Mode Threshold mode, TA = +25°C OVPL Over Voltage Negative Going Voltage Lower threshold to exit overvoltage fault 20 23 V Mode Threshold mode, TA = +25°C VGATE Protection FET VGS (gate clamp) VIN - VFAULT 9.76 12.2 14.64 V VGATE Protection FET VGS (gate clamp) VFAULT - VIN 8.16 10.2 12.24 V VFB Feedback Voltage System in regulation, VLEVEL = 1V, 0.19 0.2 0.21 V VIN = 12V, 6 LEDs FN6428 Rev 1.00 Page 2 of 20 April 2, 2007
Absolute Maximum Ratings
(TA = +25°C)
Thermal Information
Maximum pin voltage, all pins except below 6.5V Thermal Resistance JA (°C/W) / JC (°C/W) VIN, SWS1, SWS2, EN/PWM . .18V QFN-20 Package (Notes 1, 2) . 39 2.5 VBAT, FAULT, FB . .24V Maximum Junction Temperature . +135°C |VHI - SWS1, SWS2| . 6.5V Storage Temperature . .-65°C to +150°C SWD1, SWD2, OVP. .34V Continuous Output Current . .1A
Operating Conditions
Temperature Range . .-40°C to +105°C CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: TJ = TC = TA Operating continuously at a junction temperature of +135°C will shorten the life of the device while the thermal shutdown may trigger at a higher temperature than +135°C since it is a typical number. NOTE: 1. JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech Brief TB379. 2. For JC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
VBAT = VIN = 12V, VDC = 5V, TA = -40°C to +105°C unless otherwise specified.
PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT
VIN Input Supply Voltage IOUT = 350mA, 8 LEDs, BUCK/BOOSTN = 5 16 V GND VIN Input Supply Voltage IOUT = 350mA, 5 LEDs, BUCK/BOOSTN = 2.7 12 V GND, TMAX disabled VBAT Input Supply Monitor Normal operating range 2.7 16 V VBATFAULT Supply Fault Threshold If VBAT > VBATFAULT, FAULT pin is 17.6 21 24 V switched to ground ISEN Supply Current in VIN No switching, EN/PWM = 1 2.7 3.5 mA ISDIS Supply Current in VIN No switching, EN/PWM = 0 0.6 2.5 µA RSWITCH Power FET On Resistance ISWITCH = 600mA 0.15 0.25 VDC Regulated Auxiliary Supply 4.75 5 5.25 V ROUTOL Auxiliary Supply Open Loop Output VIN < VDC 40 Resistance ROUTCL Auxiliary Supply Closed Loop Output VIN > 6V, F < 100Hz 6.5 Resistance IOUT Output Drive Current 4 LED output string. VIN = VBAT = 10V 1 A ILIMBOOST Power Switch Current Limit BUCK/BOOSTN = GND 3.6 A ILIMBUCK Power Switch Current Limit BUCK/BOOSTN = VDC 2.4 A OVPH Over Voltage Positive Going Voltage Upper threshold to enter overvoltage fault 31 32 V Mode Threshold mode, TA = +25°C OVPL Over Voltage Negative Going Voltage Lower threshold to exit overvoltage fault 20 23 V Mode Threshold mode, TA = +25°C VGATE Protection FET VGS (gate clamp) VIN - VFAULT 9.76 12.2 14.64 V VGATE Protection FET VGS (gate clamp) VFAULT - VIN 8.16 10.2 12.24 V VFB Feedback Voltage System in regulation, VLEVEL = 1V, 0.19 0.2 0.21 V VIN = 12V, 6 LEDs FN6428 Rev 1.00 Page 2 of 20 April 2, 2007