MAX17075(2008) 데이터 시트보기 (PDF) - Maxim Integrated
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MAX17075
(Rev.:2008)
(Rev.:2008)
Maxim Integrated
MAX17075 Datasheet PDF : 22 Pages
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Boost Regulator with Integrated Charge Pumps,
Switch Control, and High-Current Op Amp
ABSOLUTE MAXIMUM RATINGS
VCC, CTL, RSTIN, RST to AGND ..........................-0.3V to +7.5V
DEL, REF, COMP, FB, FBN,
FBP to AGND .......................................-0.3V to (VVCC + 0.3V)
PGND, BGND to AGND.........................................-0.3V to +0.3V
LX to PGND ............................................................-0.3V to +20V
SUP to PGND .........................................................-0.3V to +20V
DRVN, DRVP to PGND..............................-0.3V to (VSUP + 0.3V)
SRC, COM, DRN to AGND .....................................-0.3V to +36V
DRN to COM............................................................-30V to +30V
SRC to SUP ............................................................................23V
REF Short Circuit to AGND.........................................Continuous
POS, NEG, OUT to AGND...........................-0.3V to (VSUP + 0.3)
DRVN, DRVP RMS Current ...............................................200mA
LX, PGND RMS Current Rating.............................................2.4A
Continuous Power Dissipation (TA = +70°C)
24-Pin TQFN (derate 27.8mW/°C above +70°C).......2222mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(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
VCC Input Supply Range
VCC Undervoltage-Lockout (UVLO) Threshold
VCC Shutdown Current
VCC Quiescent Current
REFERENCE
REF Output Voltage
REF Load Regulation
REF Sink Current
VCC rising, hysteresis (typ) = 50mV
VCC = 2V
VFB = 1.3V, not switching
VFB = 1.0V, switching
No external load
0n < ILOAD < 50μA
In regulation
2.5
5.5
V
2.05 2.25 2.45
V
100 200
μA
1
1.5
mA
4
5
1.238 1.250 1.262
V
6
mV
10
μA
REF Undervoltage-Lockout Threshold
OSCILLATOR AND TIMING
Rising edge, hysteresis (typ) = 200mV
1
1.17
V
Frequency
Oscillator Maximum Duty Cycle
Duration to Trigger Fault Condition
DEL Capacitor Charge Current
DEL Turn-On Threshold
DEL Discharge Switch On-Resistance
STEP-UP REGULATOR
FB or FBP or FBN below threshold
During startup, VDEL = 1.0V
1000 1200 1400 kHz
87
90
93
%
47
55
65
ms
4
5
6
μA
1.19 1.25 1.31
V
20
Output Voltage Range
FB Regulation Voltage
FB Fault Trip Level
FB Load Regulation
FB Line Regulation
FB Input Bias Current
FB Transconductance
FB Voltage Gain
FB = COMP, CCOMP = 1nF
Falling edge
0 < ILOAD < full, transient only
VCC = 2.5V to 5.5V
VFB = 1.25V
I = ±2.5μA at COMP, FB = COMP
FB to COMP
VVCC
18
V
1.238 1.250 1.262
V
0.96
1
1.04
V
-1
%
-0.2
0
+0.2 %/V
50
125 200
nA
75
160 280
μS
2600
V/V
2 _______________________________________________________________________________________
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