Rainbow Electronics MAX17075 User Manual
Page 2
MAX17075
Boost Regulator with Integrated Charge Pumps,
Switch Control, and High-Current Op Amp
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
VCC
= +5V, Circuit of Figure 1, V
AVDD
= V
SUP
= +13V, T
A
= 0°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°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.
VCC, CTL, RSTIN, RST to AGND ..........................-0.3V to +7.5V
DEL, REF, COMP, FB, FBN,
FBP to AGND .......................................-0.3V to (V
VCC
+ 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 (V
SUP
+ 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 (V
SUP
+ 0.3)
DRVN, DRVP RMS Current ...............................................200mA
LX, PGND RMS Current Rating.............................................2.4A
Continuous Power Dissipation (T
A
= +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
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
CC
Input Supply Range
2.5
5.5
V
V
CC
Undervoltage-Lockout (UVLO) Threshold
V
CC
rising, hysteresis (typ) = 50mV
2.05
2.25
2.45
V
V
CC
Shutdown Current
V
CC
= 2V
100
200
μA
V
FB
= 1.3V, not switching
1
1.5
V
CC
Quiescent Current
V
FB
= 1.0V, switching
4
5
mA
REFERENCE
REF Output Voltage
No external load
1.238
1.250
1.262
V
REF Load Regulation
0n < I
LOAD
< 50μA
6
mV
REF Sink Current
In regulation
10
μA
REF Undervoltage-Lockout Threshold
Rising edge, hysteresis (typ) = 200mV
1
1.17
V
OSCILLATOR AND TIMING
Frequency
1000 1200 1400 kHz
Oscillator Maximum Duty Cycle
87
90
93
%
Duration to Trigger Fault Condition
FB or FBP or FBN below threshold
47
55
65
ms
DEL Capacitor Charge Current
During startup, V
DEL
=
1.0V
4 5 6 μA
DEL Turn-On Threshold
1.19
1.25
1.31
V
DEL Discharge Switch On-Resistance
20
STEP-UP REGULATOR
Output Voltage Range
V
VCC
18 V
FB Regulation Voltage
FB = COMP, C
COMP
= 1nF
1.238
1.250
1.262
V
FB Fault Trip Level
Falling edge
0.96
1
1.04
V
FB Load Regulation
0 < I
LOAD
< full, transient only
-1
%
FB Line Regulation
V
CC
= 2.5V to 5.5V
-0.2
0
+0.2
%/V
FB Input Bias Current
V
FB
= 1.25V
50
125
200
nA
FB Transconductance
I = ±2.5μA at COMP, FB = COMP
75
160
280
μS
FB Voltage Gain
FB to COMP
2600
V/V