MAX17075 查看數據表（PDF） - Maxim Integrated
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MAX17075
Maxim Integrated
MAX17075 Datasheet PDF : 23 Pages
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MAX17075
Boost Regulator with Integrated Charge Pumps,
Switch Control, and High-Current Op Amp
ELECTRICAL CHARACTERISTICS (continued)
(VVCC = +5V, Circuit of Figure 1, VAVDD = VSUP = +13V, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
LX Current Limit
LX On-Resistance
LX Leakage Current
Current-Sense Transresistance
Soft-Start Period
VFB = 1.1V, duty cycle = 75%
ILX = 200mA
VLX = 19V, TA = +25°C
7-bit current ramp
2.5
3.0
3.5
A
0.16 0.25
10
20
µA
0.1
0.2
0.3
V/A
14
ms
POSITIVE CHARGE-PUMP REGULATOR
VSUP Input Supply Range
VSUP Overvoltage Threshold
Operating Frequency
FBP Regulation Voltage
VSUP = rising, hysteresis = 200mV
6
18
V
19
20
21
V
0.5 x
Hz
fOSC
-1.5% 1.250 +1.5%
V
FBP Line Regulation Error
FBP Input Bias Current
DRVP Current Limit
DRVP PCH On-Resistance
DRVP NCH On-Resistance
FBP Fault Trip Level
VSUP = 12V to 18V, VGON = 30V
VFBP = 1.5V, TA = +25°C
Not in dropout
Falling edge
0.2
%/V
-50
+50
nA
400
mA
4
6
1.5
3
0.96
1
1.04
V
Positive Charge-Pump Soft-Start Period
7-bit voltage ramp with filtering to prevent
high peak currents
3
5
ms
NEGATIVE CHARGE-PUMP REGULATOR
VSUP Input Supply Range
Operating Frequency
FBN Regulation Voltage (VREF - VFBN)
VREF - VFBN = 1V
6
18
V
0.5 x
Hz
fOSC
-1.5%
1 +1.5%
V
FBN Input Bias Current
VFBN = 0V, TA = +25°C
-50
+50
nA
FBN Line Regulation Error
DRVN PCH On-Resistance
DRVN NCH On-Resistance
DRVN Current Limit
FBN Fault Trip level
VSUP = 9V to 18V, VGOFF = -7V
Not in dropout
Rising edge
0.2
%/V
4
6
1.5
3
400
mA
450
mV
Negative Charge-Pump Soft-Start Period
7-bit voltage ramp with filtering to prevent
high peak currents
3
5
ms
POSITIVE GATE DRIVER TIMING AND CONTROL SWITCHES
CTL Input Low Voltage
0.6
V
CTL Input High Voltage
CTL Input Current
CTL-to-COM Rising Propagation Delay
SRC Input Voltage Range
SRC-to-COM Switch On-Resistance
VCTL = 0V or VVCC, TA = +25°C
CLOAD = 100pF
VDEL = 1.5V, CTL = VCC
2
V
-1
+1
µA
250
ns
36
V
5
10
Maxim Integrated
3
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