参数资料
型号: MAX1997ETJ+T
厂商: Maxim Integrated Products
文件页数: 4/31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)
(Circuit of Figure 1, V IN = 3V, V DDB = 10V, SHDN = ONDC = FREQ = IN, C REF = 0.22μF, PGND = GND, T A = 0 ° C to +85 ° C .
Typical values are at T A = +25 ° C, unless otherwise noted.)
PARAMETER
FBN Effective Load Regulation Error
(Transconductance)
CONDITIONS
V DRVN = -10V, I DRVN = 50μA to 1mA
MIN
TYP
18
MAX
25
UNITS
mV
FBN Line (IN) Regulation Error
Bandwidth
I DRVN = 100μA, 2.7V < V IN < 5.5V
(Note 2)
1000
1
mV
kHz
DRVN Source Current
V FBN = 200mV, V DRVN = -10V
2
4.2
mA
DRVN Leakage Current
Soft-Start Period
Soft-Start Step Size
V FBN = -0.1V, V DRVN = -20V
0.1
4096/f OSC
V REF /32
10
μA
s
V
VCOM BUFFER (MAX1997 only)
V DDB Supply Range
4.5
13
V
V DDB Supply Current
V DDB Shutdown Current
Input Offset Voltage
Input Bias Current
Input Offset Current
Input Common-Mode Range
Power-Supply Rejection Ratio
Common-Mode Rejection Ratio
Gain-Bandwidth Product
Load-Transient Settling Time
Transconductance
V FBPB = V FBNB = 5V, V DDB = 9V
V DDB = 13V, SHDN = ONDC = GND
V FBPB = 2.5V, no load
V FBPB = V FBNB = 1.2V to V DDB - 1.2V
V FBPB = V FBNB = 1.2V to V DDB - 1.2V
V DDB = 4.5V to 13V
V DDB = 4.5V to 13V, V FBPB = 2.25V
V FBPB = V FBNB = 1.2V to V DDB - 1.2V
Small signal
R L = 25 ? , C L = 10nF, V DRIVE = 9V, settle to within
10mV (Note 4)
Small signal ( ± 1mV overdrive)
Large signal ( ± 30mV overdrive)
-5
-100
1.2
70
70
367
3.5
1/6 π C L
5
0.3
7.2
900
13
+5
1
+100
V DDB -
1.2
μA
μA
mV
μA
nA
V
dB
dB
Hz
μs
μS
Output Current Drive
± 100mV overdrive, V OUTB = 3V or 7V
± 150
± 300
mA
LOGIC SIGNALS ( SHDN , ONDC)
Input Low Voltage
Input High Voltage
100mV typ hysteresis
1.6
0.4
V
V
Input Current
0.01
1
μA
CONTROL INPUTS AND OUTPUTS
ONN , ONP , ON2 Comparator Offset
DRVA Sink Current
V ON _ - V CT , V CT = 1.25V ±50mV
V DRVA = 10V, V CT = 1.25V, V ON2 = 2V
-50
5
11
+50
mV
mA
DRVA Off-Leakage
V DRVA = 28V, V CT = 1.25V, V ON2 = 1V
0.1
10
μA
CT Source Current
CT Discharge Resistance
V CT = 1V
V CT = 1V
2.5
5
15
7.5
100
μA
?
FREQ, PFLT Input Low Voltage
FREQ, PFLT Input Middle Voltage
FREQ, PFLT Input High Voltage
V IN - 1
V IN /2
1
V
V
FREQ, PFLT Input Current
FREQ, PFLT = GND or IN
-50
+50
μA
4
_______________________________________________________________________________________
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