Electrical characteristics, Absolute maximum ratings – Rainbow Electronics MAX17117 User Manual
Page 2
Internal-Switch Boost Regulator with Integrated
7-Channel Scan Driver, Op Amp, and LDO
MAX17117
2 ______________________________________________________________________________________
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.
IN, ENA, FB, COMP, SS, DTS, LDOADJ, ST,
CK1–CK6, LDOO to AGND ...............................-0.3V to +7.5V
PGND to AGND ....................................................-0.3V to +0.3V
LX, OPAS to PGND ...............................................-0.3V to +18V
GHON to PGND ....................................................-0.3V to +45V
VGL to PGND ....................................................... -20V to +0.3V
GHON to VGL .................................................................... +45V
STH, CKH1–CKH6, VGLC, RO,
RE to VGL .........................................-0.3V to (V
GHON
+ 0.3V)
OUT, POS to PGND ..............................-0.3V to (V
OPAS
+ 0.3V)
GHON and VGL RMS Current Rating ..................................0.8A
VGLC, STH, and CKH1–CKH6 RMS Current Rating ...........0.8A
LX, PGND RMS Current Rating ............................................1.6A
Continuous Power Dissipation (T
A
= +70NC)
32-Pin TQFN (derate 24.9mW/NC above +70NC) .......1990mW
Operating Temperature Range .......................... -40NC to +85NC
Junction Temperature .....................................................+150NC
Storage Temperature Range ............................ -65NC to +160NC
Lead Temperature (soldering, 10s) ................................+300NC
Soldering Temperature (reflow) ......................................+260NC
ELECTRICAL CHARACTERISTICS
(V
IN
= +3V, Circuit of Figure 1, V
OPAS
= +8.5V, V
GHON
= +24V, V
VGL
= -6.2V, V
ST
= V
CK
_ = 0V, T
A
= 0NC to +85NC, unless otherwise
noted. Typical values are at T
A
= +25NC.)
ABSOLUTE MAXIMUM RATINGS
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IN Input Voltage Range
2.3
5.5
V
IN Undervoltage-Lockout
Threshold
V
IN
rising, typical hysteresis = 150mV
1.80
2.00
2.20
V
IN Quiescent Current
V
FB
= 1.3V, LX not switching
1.0
2.5
mA
V
FB
= 1.2V, LX switching
2.5
5
IN Standby Current
V
ENA
= V
VGL
= 0V, V
IN
= 5.5V, V
GHON
= 4V
0.7
2
mA
GHON Standby Current
V
ENA
= V
VGL
= 0V, V
IN
= 5.5V, V
GHON
= 4V
100
200
F
A
OPAS Standby Current
V
ENA
= V
VGL
= 0V, V
IN
= 5.5V, V
GHON
= 4V
20
50
F
A
Thermal Shutdown
Temperature rising
145
170
N
C
STEP-UP REGULATOR
Output Voltage Range
V
IN
15
V
OPAS Overvoltage Threshold
OPAS rising
16.5
17
18
V
Operating Frequency
1000
1200
1400
kHz
Oscillator Maximum Duty Cycle
91
94
97
%
FB Regulation Voltage
No load
1.227
1.240
1.252
V
FB Fault-Trip Level
Falling edge
1.05
1.10
1.15
V
Fault-Trigger Delay
160
ms
FB Load Regulation
0 < I
LOAD
< full load
-0.2
%
FB Line Regulation
V
IN
= 2.5V to 5.5V, T
A
= +25NC
0.1
0.25
%/V
FB Input-Bias Current
V
FB
= 1.24V, T
A
= +25NC
65
200
nA
FB Transconductance
D
I
COMP
= Q2.5FA, FB = COMP
75
160
280
F
S
LX Current Limit
R
ENA
= 10k
W, duty cycle = 60%
1.6
2
2.4
A
LX On-Resistance
I
LX
= 1A
200
500
mI
LX Input-Bias Current
V
LX
= 13.5V, T
A
= +25NC
10
20
F
A
Current-Sense Transresistance
0.10
0.20
0.30
V/A
Soft-Start Pullup Current
2
4
6
F
A