MAX686 데이터 시트보기 (PDF) - Maxim Integrated
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MAX686 Datasheet PDF : 16 Pages
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DAC-Controlled Boost/Inverter
LCD Bias Supply with Internal Switch
ELECTRICAL CHARACTERISTICS (continued)
(VCC = VDD = VIN = +5V, CREF = 0.1µF, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
REFERENCE AND FB INPUT
REF Output Voltage
REF Load Regulation
VREF
VCC = VDD = 2.7V to 5.5V, no load
IREF = 0µA to 25µA, CREF = 0.1µF
IREF = 0µA to 50µA, CREF = 0.47µF
1.225
1.250
1
1.5
1.275
10
FB Set Point
FB Input Bias Current
POL = GND
VFB
POL = VCC
IFB
1.225
-15
1.250
0
1.275
15
±50
POWER OK COMPARATOR, LCDON OUTPUT
POK Threshold
VPOK
VPOK rising
POK Input Current
IPOK
POK Hysteresis
LCDON Sink Current
LCDON Leakage Current
I LCDON
V LCDON = 0.4V, VPOK = 1.25V
V LCDON = 28V, VPOK = GND
DAC OUTPUT (Notes 2, 3)
1.100
2
1.125
12
6
0.02
1.150
±50
1
Full-Scale Output Voltage
VFS
-50µA < IDACOUT < 0µA
VREF -
0.015
VREF
VREF +
0.015
Zero-Scale Output Voltage
Resolution
VZS
0µA < IDACOUT < 20µA
0
15
6
Mid-Scale Accuracy
Differential Nonlinearity
MSA
DNL
Mid-scale = VREF x 32/63
Guaranteed monotonic
-2
2
-1
1
Output Resistance in Shutdown RDACOUT
1.5
LOGIC INPUTS: POL, ISET, UP, DN, SHDN
Input Low Level
VIL
Input High Level
VIH
Input Bias Current
IBIAS
Pulse Width High
tPWH
Pulse Width Low
tPWL
Pulse Separation
tPWS
2.7V < VCC = VDD < 5.5V
2.7V < VCC = VDD < 5.5V
UP, DN, TA = +25°C
UP, DN, TA = +25°C
UP, DN, TA = +25°C
0.7
2.4
±1
1
1
1
UNITS
V
mV
V
mV
nA
V
nA
mV
mA
µA
V
mV
bits
%
LSB
kΩ
V
V
µA
µs
µs
µs
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