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MAX685 データシート(PDF) 3 Page - Maxim Integrated Products

部品番号 MAX685
部品情報  Dual-Output Positive and Negative, DC-DC Converter for CCD and LCD
PDF  12 Pages
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メーカー  MAXIM [Maxim Integrated Products]
ホームページ  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX685 データシート(HTML) 3 Page - Maxim Integrated Products

  MAX685 Datasheet HTML 1Page - Maxim Integrated Products MAX685 Datasheet HTML 2Page - Maxim Integrated Products MAX685 Datasheet HTML 3Page - Maxim Integrated Products MAX685 Datasheet HTML 4Page - Maxim Integrated Products MAX685 Datasheet HTML 5Page - Maxim Integrated Products MAX685 Datasheet HTML 6Page - Maxim Integrated Products MAX685 Datasheet HTML 7Page - Maxim Integrated Products MAX685 Datasheet HTML 8Page - Maxim Integrated Products MAX685 Datasheet HTML 9Page - Maxim Integrated Products Next Button
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Dual-Output (Positive and Negative),
DC-DC Converter for CCD and LCD
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VDD = VP = 5V, TA = 0°C to +85°C unless otherwise noted. Typical values are at TA = +25°C.)
ELECTRICAL CHARACTERISTICS
(VDD, VP = 5V, TA = -40°C to +85°C unless otherwise noted.) (Note 2)
Note 1: Negative output voltage can be larger magnitude for lower values of VDD. The voltage between VDD and VOUT- must not
exceed 14.5V.
Note 2: Specifications to -40°C are guaranteed by design, not production tested.
VDD = 5.5V (Note 1)
VDD = VP
No load
VDD = rising
VIN = 4.5V, VOUT+ ≥ 14.25V, VOUT- ≤ -7.125V,
Figure 3
SYNC = GND
SYNC = SEQ = SHDN = GND
CONDITIONS
V
-9
-1.27
Negative Output Voltage Range
V
VP
24
V
2.7
5.5
Input Voltage Range
Positive Output Voltage Range
V
1.205
1.275
FBP Threshold Voltage
V
2.35
2.65
UVLO Threshold
mA
10
Maximum Output Current
µA
500
Idle Quiescent Current
µA
10
Shutdown Supply Current
UNITS
MIN
MAX
PARAMETER
CONDITIONS
SYNC = VDD
SYNC = GND
kHz
320
400
480
Oscillator Frequency (internal)
175
220
265
kHz
200
480
Sync Frequency Range (external)
IPOK = 2mA
FBN falling
FBP rising
V
0.4
POK Output Low Voltage
mV
UNITS
MIN
TYP
MAX
54
79
108
PARAMETER
FBN POK Threshold
V
1.090
1.122
1.150
FBP POK Threshold
VPOK = 10V
µA
1
POK Output Off Current
2.7V < VDD ≤ 5.5V
No load
V
0.3 x VDD
Logic-Low Input
mV
-20
40
FBN Threshold Voltage
2.7V < VDD ≤ 5.5V
V
0.7 x VDD
Logic-High Input
FBP rising
V
1.090
1.150
FBP POK Threshold
FBN falling
mV
54
108
FBN POK Threshold
SYNC INPUT
POK COMPARATORS
No load
V
1.225
1.275
VREF Output Voltage
SHUTDOWN
UNDERVOLTAGE LOCKOUT
FB INPUTS AND REFERENCE VOLTAGE
LOGIC INPUTS (SEQ, SHDN, SYNC)
POK COMPARATORS



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