参数资料
型号: MAX1889ETE+T
厂商: Maxim Integrated Products
文件页数: 5/32页
文件大小: 0K
描述: IC PWR SUP TRPL LCD 16-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
应用: 控制器,TFT LCD
输入电压: 2.7 V ~ 5.5 V
输出数: 3
输出电压: 2.7 V ~ 13 V
工作温度: 0°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-WQFN 裸露焊盘
供应商设备封装: 16-TQFN-EP(5x5)
包装: 带卷 (TR)
Triple-Output TFT LCD Power Supply
with Fault Protection
ELECTRICAL CHARACTERISTICS (continued)
(V IN = 3V, SHDN = IN, C REF = 0.22μF, PGND = GND, T A = -40 ° C to +85 ° C .) (Note 4)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LOGIC SIGNAL (FREQ)
Input Low Voltage
Input High Voltage
Input Current
I FREQ
0.15 x V IN typical hysteresis
0.7 x V IN
0.3 x V IN
1
V
V
μA
OVERCURRENT COMPARATOR
Input Offset Voltage
-5
+5
mV
Input Bias Current
OCN, OCP Input
Common-Mode Range
I OCN ,
I OCP
V OCN = V OCP = V IN
-50
1.5
+50
0.8 x
V IN
nA
V
FAULT TIMER AND GATE DRIVER
GATE Output Sink Current
GATE Output
Pulldown Resistance
I GATE
V GATE = 1.5V, during turn-on transition
V GATE < 0.5V
6
18
200
μA
?
GATE Output Pullup Resistance
200
?
Note 1: Quiescent current does not include switching losses.
Note 2: FB regulation voltage is tested with no slope compensation ramp. Slope compensation needs to be included when selecting
resisitors for setting the output voltage (see Main Step-Up Regulator and Output Voltage Selection sections).
Note 3: Guaranteed by design. Not production tested.
Note 4: Specifications to -40 ° C are guaranteed by design, not production tested.
Typical Operating Characteristics
(Circuit of Figure 1, V IN = +3.3V, V MAIN = +9V, V PL = +20V, V NL = -7V, SHDN = FREQ = IN, PGND = GND, T A = +25 ° C, unless
otherwise noted.)
100
90
STEP-UP REGULATOR EFFICENCY
vs. LOAD CURRENT (V MAIN = 9V)
9.1
9.0
8.9
STEP-UP REGULATOR OUTPUT VOLTAGE
vs. LOAD CURRENT (V MAIN = 9V)
100
90
STEP-UP REGULATOR EFFICIENCY
vs. LOAD CURRENT (V MAIN = 13V)
80
A
V IN = 2.7V
80
70
60
50
B
C
A: V IN = 2.7V
B: V IN = 3.3V
C: V IN = 5.5V
8.8
8.7
8.6
8.5
V IN = 3.3V
V IN = 5.5V
70
60
50
A
B
C
A: V IN = 2.7V
B: V IN = 3.3V
C: V IN = 5.5V
1
10
100
1000
1
10
100
1000
1
10
100
1000
LOAD CURRENT (mA)
LOAD CURRENT (mA)
LOAD CURRENT (mA)
_______________________________________________________________________________________
5
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