MAX8741 데이터 시트보기 (PDF) - Maxim Integrated
부품명
상세내역
일치하는 목록
MAX8741 Datasheet PDF : 34 Pages
| |||
500kHz Multi-Output Power-Supply Controllers
with High Impedance in Shutdown
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 15V, both PWMs on, SYNC = VL, VL load = 0, REF load = 0, SKIP = 0, TA = 0°C to +85°C, unless otherwise noted. Typical
values are at TA = +25°C.)
PARAMETER
FAULT DETECTION
Overvoltage Trip Threshold
CONDITIONS
With respect to unloaded output voltage
MIN TYP MAX UNITS
4
7
10
%
Overvoltage Fault Propagation Delay
Output Undervoltage Threshold
CSL_ driven 2% above overvoltage trip
threshold
With respect to unloaded output voltage
1.5
µs
60
70
80
%
Output Undervoltage-Lockout Time
Thermal-Shutdown Threshold
RESET
From each SMPS enabled, with respect to
fOSC
Typical hysteresis = 10°C
3300 4096 4700 Clks
+150
°C
RESET Trip Threshold
RESET Propagation Delay
RESET Delay Time
INPUTS AND OUTPUTS
Feedback-Input Leakage Current
Logic Input-Low Voltage
Logic Input-High Voltage
With respect to unloaded output voltage,
falling edge; typical hysteresis = 1%
-7
-5.5
-4
%
Falling edge, CSL_ driven 2% below RESET
1.5
µs
trip threshold
With respect to fOSC
27,000 32,000 37,000 Clks
FB3, FB5; SECFB = 2.6V
RUN/ON3, SKIP, TIME/ON5 (SEQ = REF),
SHDN, STEER, SYNC
RUN/ON3, SKIP, TIME/ON5 (SEQ = REF),
SHDN, STEER, SYNC
1
50
nA
0.6
V
2.4
V
Input Leakage Current
Logic Output-Low Voltage
Logic Output-High Current
TIME/ON5 Input Trip Level
TIME/ON5 Source Current
TIME/ON5 On-Resistance
Gate-Driver Sink/Source Current
Gate-Driver On-Resistance
RUN/ON3, SKIP, TIME/ON5 (SEQ = REF),
SHDN, STEER, SYNC, SEQ; VPIN = 0V or 3.3V
RESET, ISINK = 4mA
RESET = 3.5V
1
±1
µA
0.4
V
mA
SEQ = 0 or VL
2.4
2.6
V
TIME/ON5 = 0, SEQ = 0 or VL
TIME/ON5; RUN/ON3 = 0, SEQ = 0 or VL
2.5
3
3.5
µA
15
80
Ω
DL3, DH3, DL5, DH5; forced to 2V
1
A
High or low (Note 5)
SSOP package
QFN package
1.5
7
Ω
1.5
8
4 _______________________________________________________________________________________
Share Link: 