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MAX1640C/D датащи(PDF) 3 Page - Maxim Integrated Products

номер детали MAX1640C/D
подробное описание детали  Adjustable-Output, Switch-Mode Current Sources with Synchronous Rectifier
PDF  12 Pages
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производитель  MAXIM [Maxim Integrated Products]
домашняя страница  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX1640C/D датащи(HTML) 3 Page - Maxim Integrated Products

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Adjustable-Output, Switch-Mode
Current Source with Synchronous Rectifier
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS
(VIN = +12V, VOUT = 6V, Circuit of Figure 1, TA = -40°C to +85°C, unless otherwise noted.)
IREF = 0 to 50µA
VOUT = 2V to 24V (MAX1640)
D0 = D1 = low
D0 or D1 = high
FET Drive Output Resistance
MAX1641
MAX1640
VIN = 5.5V to 26V,
ILOAD = 0 to 20mA
VIN = 5.5V to 26V,
ILOAD = 0 to 20mA
MAX1640
CONDITIONS
µA
1
VSET Input Current
mV
10
Reference Load Regulation
V
1.94
2.06
VREF
Reference Voltage
V
4.0
4.4
VLDOL Undervoltage Lockout
µA
1
Output Current in Off Mode
mA
4
Quiescent VIN Supply Current
%/V
0.4
Output Current Compliance
mV
34
48
Quarter-Scale Current-Sense
Threshold
12
Ω
Off-Time Range
V
5.5
26
VIN
Input Voltage Range
1.5
8
µs
Off-Time Accuracy
RTOFF = 62k
Ω
1.5
2.5
µs
146
154
Pulse-Trickle Mode Duty-Cycle
Period
mV
141
159
Full-Scale Current-Sense
Threshold
V
VIN -VIN -
5.5
4.5
VLDOH
Linear-Regulator Output
Voltage, VIN Referenced
D0 = low, D1 = high, RTOFF = 50k
Ω
25
42
ms
V
4.5
5.5
VLDOL
Linear-Regulator Output
Voltage, Ground Referenced
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
PWM Maximum Duty Cycle
100
%
Input Low Voltage
VIL
D0, D1
0.8
V
Input High Voltage
VIH
D0, D1
2.4
V
Input Leakage Current
IIN
D0, D1
±
1
µA
33
42
MAX1641
ELECTRICAL CHARACTERISTICS (continued)
(VIN = +12V, VOUT = 6V, Circuit of Figure 1, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
CONDITIONS
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
PWM Maximum Duty Cycle
100
%
Input Low Voltage
VIL
D0, D1
0.8
V
Input High Voltage
VIH
D0, D1
2.4
V
Input Leakage Current
IIN
D0, D1
±
1
µA
Note 2: This ratio is generated by a 1:8 clock divider and is not an error source for current calculations.



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