MAX8728ETJ+T Maxim Integrated Products, MAX8728ETJ+T Datasheet - Page 2

• Manufacturer Part Number: MAX8728ETJ+T
• Description: Display Drivers Low-Cost Multiple-Ou tput Power Supply fo
• Manufacturer: Maxim Integrated Products

Specifications of MAX8728ETJ+T

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ABSOLUTE MAXIMUM RATINGS
IN, INL, SUPP to GND ............................................-0.3V to +14V
SUPP to IN ..........................................................................±0.3V
DRVP to GNDP.........................................-0.3V to V SUPP + 0.3V
CTL, EN,
COMP, FB1, FB2, FBN, FBP, FSEL, DEL,
GND1, GND2, GNDP to GND.............................................±0.3V
BST to GND1 ..........................................................-0.3V to +20V
LX1 to BST................................................................-6V to +0.3V
LX2 to GND2 ..........................................................-0.3V to +19V
DRVN, LX1, GATE to GND1 ..........................-0.3V to V IN + 0.3V
GON, SRC to GND .................................................-0.3V to +40V
SRC to GON ...........................................................-0.3V to +40V
SRC to SUPP ..........................................................-0.3V to +30V
SRC to SUPP (momentary)......................................-14V to +30V
GON to SUPP ..........................................................-14V to +30V
Low-Cost, Multiple-Output
Power Supply for LCD Monitors/TVs
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V
to +85°C. Typical values are at T
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.
2
GENERAL
IN, INL Input Voltage Range
INL Quiescent Current
IN Standby Supply Current
Switching Frequency
Phase Difference Between
Step-Down/Positive and
Step-Up/Negative Regulators
VL REGULATOR
VL Output Voltage
VL Undervoltage Lockout
Threshold
REFERENCE
REF Output Voltage
REF Load Regulation
REF Sink Current
REF Undervoltage Lockout
Threshold
THR, MODE, REF to GND ........................-0.3V to V CC + 0.3V
_______________________________________________________________________________________
SHDN, OUT1, V L , V CC to GND ................-0.3V to +6V
PARAMETER
IN
= V
INL
= V
A
SUPP
= +25°C, unless otherwise noted.)
For VL regulator operation
V
LX2 not switching, LX1 switching
V
FSEL = GND
FSEL = V
FSEL = REF
7V < V
1.9V, V
VL rising, 2.5% hysteresis
No external load
0 < I
REF in regulation
Rising edge, 200mV hysteresis
FB2
IN
= 7V to 13.2V, EN = SHDN = GND
REF
= 12V, V
= V
INL
FBN
< 50µA
FBP
CC
< 13.2V, V
= 0.5V, I
= 2.2V, V
OUT1
CONDITIONS
= +3.3V, V
VL
FB1
FBN
= 25mA
= V
= 0,
FB2
SRC
= V
SRC to DRN............................................................-0.3V to +40V
DRN to GND ...........................................................-0.3V to +40V
GON to DRN...........................................................-0.3V to +30V
V
REF Short Circuit to GND ...........................................Continuous
DRVN RMS Current..........................................................-400mA
DRVP RMS Current.........................................................+100mA
LX2 RMS Current ................................................................+1.6A
GND2 RMS Current ............................................................+1.6A
LX1 RMS Current .................................................................-1.6A
Continuous Power Dissipation (T
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
= 28V, GND1 = GND2 = GNDP = GND = 0, I
L
FBP
32-Pin Thin QFN (derate 34.5mW/°C above +70°C).....2758mW
Short Circuit to GND..............................................Momentary
=
1275
MIN
1.98
850
425
7.0
4.8
3.8
0
1500
1000
TYP
12.0
2.00
530
180
5.0
4.0
1.5
7
A
= +70°C)
MAX
1730
1150
13.2
2.02
610
0.5
5.1
4.1
10
10
REF
= 0, T
Degrees
UNITS
kHz
A
mA
mA
mV
µA
V
V
V
V
V
= 0°C