参数资料
型号: MAX1880EUG+
厂商: Maxim Integrated Products
文件页数: 3/39页
文件大小: 0K
描述: IC DC-DC CONV QUAD LCD 24TSSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 62
应用: 转换器,TFT,LCD
输入电压: 2.7 V ~ 5.5 V
输出数: 4
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: 24-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 24-TSSOP
包装: 管件
MAX1778/MAX1880–MAX1885
Quad-Output TFT LCD DC/DC
Converters with Buffer
ELECTRICAL CHARACTERISTICS (continued)
(V IN = +3.0V, SHDN = IN, V SUPP = V SUPN = V SUPB = V SUPL = 10V, LDOOUT = FBL, BUF- = BUFOUT, BUF+ = FLTSET = TGND =
PGND = GND, C REF = 0.22μF, C BUF = 1μF, T A = 0°C to +85°C . Typical values are at T A = +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAIN STEP-UP CONVERTER
Main Output Voltage Range
V MAIN
V IN
13
V
FB Regulation Voltage
FB Input Bias Current
Operating Frequency
Oscillator Maximum Duty
Cycle
Load Regulation
V FB
I FB
f OSC
Integrator enabled, C INTG = 1000pF
Integrator disabled (INTG = REF)
V FB = 1.25V, INTG = GND
MAX1778/MAX1880/MAX1883
MAX1881/MAX1882/MAX1884/MAX1885
Integrator enabled,
C INTG = 1000pF
I LX = 0 to 200mA,
V MAIN = 10V
Integrator disabled
(INTG = REF)
1.234
1.220
-50
0.85
425
80
1.247
1
500
85
0.01
0.2
1.260
1.280
+50
1.15
575
91
V
nA
MHz
kHz
%
%
Line Regulation
Integrator Transconductance
0.1
317
%/V
μS
LX Switch On-Resistance
LX Leakage Current
LX Current Limit
R LX(ON)
I LX
I LIM
I LX = 100mA
V LX = 13V
Phase I = soft-start (1024/f OSC )
Phase II = soft-start (1024/f OSC )
Phase III = soft-start (1024/f OSC )
Phase IV = fully on (after 3072/f OSC )
0.275
1.15
0.35
0.01
0.38
0.75
1.12
1.5
0.7
20
0.5
1.85
?
μA
A
Maximum RMS LX Current
1
A
Soft-Start Period
t SS
Power-up to the end of Phase III
3072 / f OSC
s
FB Fault Trip Level
Falling edge, FLTSET = GND
Falling edge, FLTSET = 1V
1.07
0.955
1.1
0.99
1.14
1.025
V
POSITIVE CHARGE PUMP (MAX1778/MAX1880/MAX1881/MAX1882 only)
SUPP Input Supply Range
Operating Frequency
V SUPP
f CHP
2.7
0.5 x f OSC
13
V
Hz
FBP Regulation Voltage
V FBP
1.2
1.25
1.3
V
FBP Input Bias Current
DRVP PCH On-Resistance
I FBP
R PCH(ON)
V FBP = 1.5V
-50
5
+50
10
nA
?
DRVP NCH On-Resistance
R NCH(ON)
V FBP = 1.2V
V FBP = 1.3V
20
2
4
?
k ?
Maximum RMS DRVP Current
0.1
A
FBP Power-Ready Trip Level
FBP Fault Trip Level
Rising edge
Falling edge, FLTSET = GND
Falling edge, FLTSET = 1V
1.09
1.08
0.955
1.125
1.11
0.99
1.16
1.16
1.025
V
V
Maxim Integrated
3
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