MAX774(2002) Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Lista de partido
MAX774
(Rev.:2002)
(Rev.:2002)
Maxim Integrated
MAX774 Datasheet PDF : 16 Pages
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-5V/-12V/-15V or Adjustable, High-Efficiency,
Low IQ Inverting DC-to-DC Controllers
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 5V, ILOAD = 0mA, CREF = 0.1µF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
Efficiency
(Circuit of Figure 2—
Bootstrapped)
SHDN Input Current
SHDN Input Voltage High
SHDN Input Voltage Low
Current-Limit Trip Level
(V+ – CS)
CS Input Current
Switch Maximum On-Time
Switch Minimum Off-Time
EXT Rise Time
EXT Fall Time
SYMBOL
CONDITIONS
MIN TYP MAX
MAX774, V+ = 5V, ILOAD = 1A
82
MAX775, V+ = 5V, ILOAD = 500mA
88
MAX776, V+ = 5V, ILOAD = 400mA
87
V+ = 16.5V, SHDN = 0V or V+
±1
VIH
3V ≤ V+ ≤ 16.5V
1.6
VIL
3V ≤ V+ ≤ 16.5V
MAX77_C/E
MAX77_M
0.4
0.3
VCS
3V ≤ V+ ≤ 16.5V
MAX77_C/E 180 210 240
MAX77_M
160 210 260
±1
tON (max) V+ = 12V
12
16
20
tOFF (max) V+ = 12V
1.8
2.3
2.8
CEXT = 1nF, V+ = 12V
50
CEXT = 1nF, V+ = 12V
50
UNITS
%
µA
V
V
mV
µA
µs
µs
ns
ns
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