参数资料
型号: MAX1997ETJ+T
厂商: Maxim Integrated Products
文件页数: 6/31页
文件大小: 0K
描述: IC PWR SUPPLY TFT LCD 32TQFN
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: 5
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: 32-WFQFN 裸露焊盘
供应商设备封装: 32-TQFN-EP(5x5)
包装: 带卷 (TR)
Quintuple/Triple-Output TFT LCD Power Supplies
with Fault Protection and VCOM Buffer
ELECTRICAL CHARACTERISTICS (continued)
(V IN = 3V, V DDB = 10V, SHDN = ONDC = FREQ = IN, C REF = 0.22μF, PGND = GND, T A = -40 ° C to +85 ° C , unless otherwise noted.)
(Note 3)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
NEGATIVE LINEAR-REGULATOR CONTROLLER (REG N)
FBN Regulation Voltage
FBN Fault Trip Level
I DRVN = 100μA
V FBN rising
95
325
155
475
mV
mV
FBN Effective Load Regulation Error
(Transconductance)
DRVN Source Current
V DRVN = -10V, I DRVN = 0.05mA to 5mA
V FBN = 200mV, V DRVN = -10V
1
30
mV
mA
VCOM BUFFER (MAX1997 only)
V DDB Supply Range
V DDB Supply Current
V FBPB = V FBNB = 5V, V DDB = 9V
4.5
13
900
V
μA
Input Offset Voltage
Input Bias Current
Input Common-Mode Range
Out Current Drive
V FBPB = 2.5V, no load
V FBPB = V FBNB = 1.2V to V DDB - 1.2V
V DDB = 4.5V to 13V
± 100mV overdrive, V OUTB = 3V or 7V
-5
1.2
± 150
+5
1
V DDB -
1.2
mV
μA
V
mA
LOGIC SIGNALS ( SHDN , ONDC)
Input Low Voltage
Input High Voltage
100mV typ hysteresis
1.6
0.4
V
V
CONTROL INPUTS AND OUTPUTS
FREQ, PFLT Input Low Voltage
FREQ, PFLT Input High Voltage
V IN - 1
1
V
V
FREQ, PFLT Input Current
FREQ, PFLT = GND or IN
-50
+50
μA
Note 1:
Note 2:
Note 3:
Note 4:
Quiescent current does not include switching losses.
Guaranteed by design, not production tested.
Specifications to -40 ° C are guaranteed by design, not production tested.
The VCOM buffer load transient settling time is measured with the following circuit:
V SOURCE
9V
V GAMMA
20k ?
FBPB
V DDB
8.6V
20k ?
FBNB
GND
1 μ F
1 μ F
V DRIVE
8V
MAX1997
OUTB
R L
25 ?
V x
C L
10nF
6
_______________________________________________________________________________________
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