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参数资料
| 型号： | MAX8798EVCMAXQU+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/31页 |
| 文件大小： | 0K |
| 描述： | KIT EVAL FOR MAX8798 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 主要目的： | 特殊用途 DC/DC，LCD 电源 |
| 输出及类型： | 4，非隔离 |
| 功率 - 输出： | 3.56W |
| 输出电压： | 8V，3.2V，21V，-13V |
| 电流 - 输出： | 300mA，150mA，20mA，20mA |
| 输入电压： | 1.8 ~ 6 V |
| 稳压器拓扑结构： | 升压 |
| 频率 - 开关： | 1.2MHz |
| 板类型： | 完全填充 |
| 已供物品： | 2 板，CD |
| 已用 IC / 零件： | MAX8798 |
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Internal-Switch Boost Regulator with
Integrated 3-Channel Scan Driver for TFT LCDs
ELECTRICAL CHARACTERISTICS (continued)
(V IN = V DD = V SHDN = +3V, circuit of Figure 2, V BOOST = 8V, V GON = 23V, V GOFF = -12V, V POS = 0, V NEG = 1.5V, V OE = V CPV =
V STV = V OECON = 0, T A = -40°C to +85°C , unless otherwise noted.) (Note 6)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
BOOTSTRAP LINEAR REGULATOR (VL)
VL Output Voltage
VL Undervoltage Lockout
I VL = 100 μA
V VL rising, typical hysteresis 100mV
3.15
2.4
3.45
3.0
V
V
MAIN DC-DC CONVERTER
BOOST Supply Current
Operating Frequency
Oscillator Maximum Duty Cycle
FB Regulation Voltage
LX not switching, no load on VL
LX switching, no load on VL
990
88
1.216
2
4
1350
96
1.254
mA
kHz
%
V
FB Line Regulation
FB Transconductance
FB Fault-Timer Trip Threshold
LX On-Resistance
LX Current Limit
V IN = 1.8V to 5.5V, FB to COMP
I = 5 μA at COMP
Falling edge
I LX = 1.2A
Duty cycle = 65%
-0.15
70
0.96
1.6
+0.15
280
1.04
300
2.2
%/V
μS
V
m
A
OPERATIONAL AMPLIFIER
BOOST Supply Range
BOOST Overvoltage Fault Threshold (Note 2)
BOOST Undervoltage Fault Threshold (Note 3)
5
18.1
18
19.9
1.4
V
V
V
Input Offset Voltage
Input Common-Mode Voltage Range
1V < (V NEG , V POS ) < (V BOOST - 1V)
1V < (V NEG , V POS ) < (V BOOST - 1V)
-25
0
+25
V BOOST
mV
V
VCOM Output-Voltage Swing High
VCOM Output-Voltage Swing Low
VCOM Short-Circuit Current
I VCOM = 5mA
I VCOM = -5mA
Short to V BOOST /2, sourcing
Short to V BOOST /2, sinking
V BOOST
- 100
50
50
100
mV
mV
mA
PROGRAMMABLE VCOM CALIBRATOR
GON Input Range
GON Threshold to Enable Program
SET Voltage Resolution
Rising edge, 60mV hysteresis
16.1
7
45.0
16.0
V
V
Bits
SET Differential Nonlinearity
SET Zero-Scale Error
SET Full-Scale Error
SET Current
SET External Resistance
(Note 4)
OUT Voltage Range
EEPROM Write Cycles
Monotonic overtemperature
To GND, V BOOST = 18V
To GND, V BOOST = 6V
(Note 5)
-2
-1
-3
8.5
2.5
V SET +
0.5V
1000
+2
+2
+3
120
170.0
50.0
18
LSB
LSB
LSB
μA
k
V
—
6
_______________________________________________________________________________________
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