MAX17101 查看數據表（PDF） - Maxim Integrated
零件编号
产品描述 (功能)
生产厂家
MAX17101 Datasheet PDF : 31 Pages
| |||
Dual Quick-PWM, Step-Down Controller
with Low-Power LDO, RTC Regulator
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, no load on LDO, RTC, OUT1, OUT2, and REF, VIN = 12V, VDD = VCC = VSECFB = 5V, VREFIN2 = 1.0V, BYP =
LDOSEL = GND, ONLDO = IN, ON1 = ON2 = VCC, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
OUT2 FAULT DETECTION
OUT2 Overvoltage Trip
Threshold
OUT2 Overvoltage
Fault-Propagation Delay
SYMBOL
CONDITIONS
With respect to error-comparator threshold
VOVP(OUT2)
Minimum overvoltage threshold
tOVP OUT2 forced 50mV above trip threshold
MIN TYP MAX UNITS
12
16
20
%
0.7
V
10
μs
OUT2 Undervoltage Protection
Trip Threshold
VUVP(OUT2) With respect to error-comparator threshold
65
70
75
%
OUT2 Overvoltage
Fault-Propagation Delay
tOVP OUT2 forced 50mV above trip threshold
10
μs
OUT2 Output Undervoltage
Fault-Propagation Delay
tUVP OUT2 forced 50mV below trip threshold
10
μs
PGOOD2 Lower Trip Threshold
With respect to error-comparator threshold,
falling edge, hysteresis = 2%
-20
-16
-12
%
PGOOD2 Propagation Delay
tPGOOD2
OUT2 forced 50mV beyond PGOOD1 trip
threshold, falling edge
10
μs
PGOOD2 Output-Low Voltage
PGOOD2 Leakage Current
CURRENT LIMIT
IPGOOD2
VOUT2 = VREFIN2 - 150mV (PGOOD2 low
impedance), ISINK = 4mA
OUT2 = REFIN2 (PGOOD2 high impedance),
PGOOD2 forced to 5.5V, TA = +25°C
0.3
V
1
μA
ILIM_ Adjustment Range
VILIM
0.2
2.0
V
ILIM_ Current
IILIM
5
μA
Valley Current-Limit Threshold
(Adjustable)
VVALLEY VAGND - VLX_
RILIM_ = 100k
RILIM_ = 200k
40
50
60
mV
87
100 113
Current-Limit Threshold
(Negative)
VNEG
With respect to valley current-limit threshold,
SKIP = VCC
-120
%
Ultrasonic Current-Limit
Threshold
VNEG(US) VOUT1 = VOUT2 = VFB1 = 0.77V, VREFIN2 = 0.70V
25
mV
Current-Limit Threshold
(Zero Crossing)
VZX
VAGND - VLX_, SKIP = GND or OPEN/REF
1
mV
_______________________________________________________________________________________ 5
Share Link: 