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参数资料
| 型号： | MAX17061ETI+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 5/26页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WHITE BCKLGT 28-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 8 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 车载，背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 1MHz |
| 电源电压： | 4.5 V ~ 26 V |
| 输出电压： | 5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-WFQFN 裸露焊盘 |
| 供应商设备封装： | 28-TQFN-EP（4x4） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
8-String White LED Driver with
SMBus for LCD Panel Applications
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V IN = 12V, C CCV = 0.022μF, R CCV = 5.1k Ω , V ISET = V OSC = V DD = V CC , R FSET = 464k Ω , V PWMI = GND,
T A = -40°C to +85°C , unless otherwise noted. Typical values are at T A = +25°C.) (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
BOOST CONVERTER
LX On-Resistance
LX Leakage Current
20mA from LX_ to PGND
45V on LX_
0.3
1
Ω
μA
V OSC = V CC
0.89
1.10
MHz
Operating Frequency
OSC High-Level Threshold
OSC Midlevel Threshold
OSC Low-Level Threshold
Maximum Duty Cycle
LX Current Limit
V OSC = open
V OSC = GND
Duty cycle = 75%
675
450
V CC -
0.4
1.5
94
1.6
825
560
V CC -
2.0
0.4
97
kHz
kHz
V
V
V
%
A
CONTROL INPUT
SDA, SCL Logic Input-High Level
SDA, SCL Logic Input-Low Level
PWMI Logic Input-High Level
PWMI Logic Input-Low Level
INPUT LEAKAGE
2.1
2.1
0.8
0.8
V
V
V
V
PWMI Leakage Current
ISET, FSET Leakage Current
OV Leakage Current
SDA, SCL Input Bias Current
ISET , FSET to V CC
-0.3
-0.1
-1
+0.3
+1
+0.1
+1
μA
μA
μA
μA
SDA Output-Low Sink Current
V SDA = 0.4V
4
mA
OSC Leakage Current
-3
+3
μA
LED CURRENT
ISET = V CC
24.5
25.5
Full-Scale FB_ Output Current
R ISET = 133k Ω
R ISET = 200k Ω
28.6
19.0
31.4
21.0
mA
ISET High-Level Threshold
R ISET = 266k Ω
14.3
V CC -
0.4
15.7
V
ISET Output Voltage
1.166
1.306
V
Current Regulation Between Strings
Minimum FB_ Regulation Voltage
Maximum FB_ Ripple
FB_ On-Resistance
Full brightness
I FB_ = 25mA
I FB_ = 30mA
I FB_ = 20mA
I FB_ = 15mA
I FB_ = 20mA (C OUT = 1μF, V OSC = V CC )
V FB_ = 50mV (includes 10 Ω sense resistor)
-1.5
425
575
380
285
+1.5
910
1100
740
560
200
28.4
%
mV
mV P/P
Ω
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