参数资料
型号: MAX8759ETI+T
厂商: Maxim Integrated
文件页数: 3/32页
文件大小: 0K
描述: IC CNTRL CCFL BACKLIGHT 28TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: CCFL 控制器
频率: 30 ~ 80 kHz
电流 - 电源: 2.5mA
电源电压: 4.5 V ~ 28 V
工作温度: -40°C ~ 85°C
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-TQFN-EP(5x5)
包装: 带卷 (TR)
Low-Cost, SMBus, CCFL Backlight Controller
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V BATT = 12V, V CC = V DD, T A = 0°C to +85°C . Typical values are at T A = +25 ° C, unless otherwise noted.)
PARAMETER
IFB1, IFB2 Input Bias Current
IFB1, IFB2 Lamp-Out Threshold
IFB1, IFB2 to COMP Transconductance
COMP Output Impedance
COMP Discharge Current During Overvoltage
or Overcurrent Fault
COMP Discharge Current During DPWM
Off-Time
CONDITIONS
0 < V IFB1,2 < 3V
-3V < V IFB1,2 < 0
0.5V < V COMP < 4V
V VFB = 2.6V or V ISEC = 1.5V
V COMP = 1.5V
MIN
-3
-230
575
60
6
500
90
TYP
600
100
12
1000
110
MAX
+3
625
160
24
2000
130
UNITS
μA
mV
μS
M ?
μA
μA
DPWM Rising-to-Falling Ratio
V IFB1,2 = 0
2.5
ISEC Input Voltage Range
-3
+3
V
ISEC Overcurrent Threshold
1.18
1.21
1.26
V
ISEC Input Bias Current
VFB Input Voltage Range
V ISEC = 1.25V
-0.3
-4
+0.3
+4
μA
V
VFB Input Impedance
VFB Overvoltage Threshold
VFB Undervoltage Threshold
VFB Undervoltage Delay
R FREQ = 169k ?
R FREQ = 169k ? , T A = +25°C to +85°C
150
2.2
210
207
300
2.3
240
250
210
450
2.4
280
213
M ?
V
mV
μs
DPWM Oscillator Frequency
R FREQ = 169k ?
R FREQ = 340k ?
205
210
106
215
Hz
R FREQ = 100k ?
343
PWMO Output Impedance
20
40
60
k ?
PWMI Input Low Voltage
PWMI Input High Voltage
PWMI Input Hysteresis
2.1
300
0.7
V
V
mV
PWMI Input Bias Current
PWMI Input Frequency Range
PWMI Full-Range Accuracy
PWMI duty cycle = 100%
-0.3
5
98
100
+0.3
50
5
μA
kHz
LSB
PWMI Brightness Setting
ALS Full-Adjustment Range
PWMI duty cycle = 50%
PWMI duty cycle = 0%
48
9.7
0
50
10.0
52
10.3
1.8
%
V
ALS Full-Range Accuracy
5
LSB
ALS Input Bias Current
-0.1
+0.1
μA
VALS Output Voltage
MAX8759 is enabled, 6V < V BATT < 28V,
I LOAD = 1mA
5.10
5.30
5.50
V
VALS Leakage Current
VALS On-Resistance
MAX8759 is disabled, VALS = GND
MAX8759 is enabled
-3
30
+3
60
μA
?
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