MAX15035ETL データシートの表示（PDF） - Maxim Integrated
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MAX15035ETL Datasheet PDF : 28 Pages
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MAX15035
15A Step-Down Regulator with Internal Switches
Electrical Characteristics 1 (continued)
(Circuit of Figure 1, VIN = 12V, VDD = VCC = VEN = 5V, REFIN = ILIM = REF, SKIP = GND. TA = 0°C to +85°C, unless otherwise
specified. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
Dynamic REFIN Transition
Fault Blanking Threshold
Thermal-Shutdown Threshold
CURRENT LIMIT
ILIM Input Range
ILIM Input Bias Current
Current-Limit Threshold
Current-Limit Threshold
(Negative)
Current-Limit Threshold
(Zero Crossing)
Ultrasonic Frequency
Ultrasonic Current-Limit
Threshold
Internal BST Switch
On-Resistance
INPUTS AND OUTPUTS
EN Logic-Input Threshold
EN Logic-Input Current
SKIP Quad-Level Input Logic
Levels
SKIP Logic-Input Current
SYMBOL
CONDITIONS
MIN
Fault blanking initiated; REFIN deviation
from the internal target voltage (error
comparator threshold); hysteresis = 10mV
TSHDN Temperature rising, hysteresis = 15°C
0.4
TA = +25°C, ILIM = 0.4V to 2V
-0.1
VILIMIT
VILIM = 0.4V, VGND - VLX
ILIM = REF (2.0V), VGND - VLX
18
92
VINEG VILIM = 0.4V, VGND - VLX
VZX
VILIM = 0.4V,
VGND - VLX, SKIP = GND or open
SKIP = open (3.3V); VFB = VREFIN + 50mV
18
SKIP = open (3.3V); VFB = VREFIN + 50mV,
VGND - VLX
RBST
IBST = 10mA, VDD = 5V
TYP MAX UNITS
±50
mV
160
°C
VREF
V
+0.1
µA
20
22
100
108
mV
-24
mV
1
mV
30
kHz
-35
mV
4
7
Ω
VEN
EN rising edge, hysteresis = 450mV (typ)
1.20
1.7
2.20
V
IEN
EN forced to GND or VDD, TA = +25°C
-0.5
+0.5
µA
High (5V VDD)
VCC -
0.4
VSKIP
Open (3.3V)
Ref (2.0V)
3.0
3.6
V
1.7
2.3
Low (GND)
0.4
ISKIP
SKIP forced to GND or VDD, TA = +25°C
-2
+2
µA
Electrical Characteristics 2
(Circuit of Figure 1, VIN = 12V, VDD = VCC = VEN = 5V, REFIN = ILIM = REF, SKIP = GND. TA = -40°C to +85°C, unless otherwise
specified.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
PWM CONTROLLER
Input Voltage Range
VIN
4.5
Quiescent Supply Current (VDD) IDD + ICC FB forced above REFIN
On-Time
VIN = 12V,
RTON = 97.5kΩ (600kHz) 115
tON
VFB = 1.0V
RTON = 200kΩ (300kHz)
270
(Note 3)
RTON = 302.5kΩ (200kHz) 368
Minimum Off-Time
tOFF(MIN) (Note 3)
REFIN Voltage Range
VREFIN (Note 2)
0
MAX UNITS
26
V
1.2
mA
213
336
ns
516
400
ns
VREF
V
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