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参数资料
| 型号： | ISL78100ARZ-T |
| 厂商： | Intersil |
| 文件页数： | 2/19页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER AUTOMOTIVE 20-QFN |
| 标准包装： | 6,000 |
| 拓扑： | PWM，降压（降压），升压（升压），切换式电容器（充电泵） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 车载，背光 |
| 频率： | 800kHz ~ 1.2MHz |
| 电源电压： | 2.7 V ~ 16 V |
| 输出电压： | 32V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-VFQFN 裸露焊盘 |
| 供应商设备封装： | 20-QFN（4x4） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 105°C |
ISL78100
Absolute Maximum Ratings (T A = +25°C)
Thermal Information
Maximum pin voltage, all pins except below 6.5V
Thermal Resistance
θ JA (°C/W) / θ JC (°C/W)
VIN , SWS1, SWS2, EN/PWM . . . . . . . . . . . . . . . . . . . . . . . . . . .18V
VBAT, FAULT, FB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24V
|VHI - SWS1, SWS2| . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5V
SWD1, SWD2, OVP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34V
Continuous Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1A
20 Ld QFN Package (Notes 1, 2). . . . . 39 2.5
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +135°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +105°C
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
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: T J = T C = T A
NOTES:
1. θ 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 θ JC , the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
V BAT = V IN = 12V, V DC = 5V, T A = -40°C to +105°C unless otherwise specified.
PARAMETER
VIN
VIN
DESCRIPTION
Input Supply Voltage
Input Supply Voltage
CONDITIONS
I OUT = 350mA, 8 LEDs, BUCK/BOOSTN = GND
I OUT = 350mA, 5 LEDs, BUCK/BOOSTN = GND,
MIN
5
2.7
TYP
MAX
16
12
UNIT
V
V
TMAX disabled
V BAT
Input Supply Monitor
Normal operating range
2.7
16
V
V BATFAULT
Supply Fault Threshold
If V BAT > V BATFAULT , FAULT pin is switched to
17.6
21
24
V
ground
I S E N
I S D IS
R SWITCH
V DC
R OUTOL
Supply Current in V IN
Supply Current in V IN
Power FET On-Resistance
Regulated Auxiliary Supply
Auxiliary Supply Open Loop Output
No switching, EN/PWM = 1
No switching, EN/PWM = 0
I SWITCH = 600mA
V IN < V DC
4.75
2.7
0.6
0.15
5
3.5
2.5
0.25
5.25
40
mA
μA
Ω
V
Ω
Resistance
R OUTCL
Auxiliary Supply Closed Loop Output
V IN > 6V, F < 100Hz
6.5
Ω
Resistance
I OUT
I LIMBOOST
I LIMBUCK
Output Drive Current
Power Switch Current Limit
Power Switch Current Limit
4 LED output string. V IN = V BAT = 10V
BUCK/BOOSTN = GND
BUCK/BOOSTN = VDC
1
3.6
2.4
A
A
A
OVPH
Overvoltage Positive Going Voltage
Upper threshold to enter overvoltage fault mode,
31
32
V
Mode Threshold
T A = +25°C
OVPL
Overvoltage Negative Going Voltage
Lower threshold to exit overvoltage fault mode,
20
23
V
Mode Threshold
T A = +25°C
V GATE
V GATE
V FB
Protection FET VGS (Gate Clamp)
Protection FET VGS (Gate Clamp)
Feedback Voltage
V IN - V FAULT
V FAULT - V IN
System in regulation, V LEVEL = 1V,
9.76
8.16
0.18
12.2
10.2
0.2
14.64
12.24
0.22
V
V
V
V IN = 12V, 6 LEDs
V LEVEL
Light Control Voltage Linear Input
Mode = 1, analog control of LED current
0.25
3
V
Range
FB UV FAULT
Feedback Undervoltage Fault
V LEVEL = 1V, EN/PWM = 3V
100
160
200
mV
2
FN6626.1
December 24, 2013
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