MAX8784ETL+ Maxim Integrated Products, MAX8784ETL+ Datasheet - Page 2

• Manufacturer Part Number: MAX8784ETL+
• Description: IC REG STP UP W/AMP 40-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX8784ETL+

• Applications: LCD TV/Monitor
• Voltage - Supply: 4 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 40-TQFN Exposed Pad
• Operating Supply Voltage: 4 V to 5.5 V
• Maximum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Maximum Power Dissipation: 2857 mW
• Minimum Operating Temperature: + 85 C
• Supply Current: 4 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

ABSOLUTE MAXIMUM RATINGS
V
REF, COMP, FB, FBN, FBP to AGND .........-0.3V to (V
POS1, NEG1, POS2, NEG2, POS3, OUT1, OUT2,
PGND, BGND to AGND.........................................-0.3V to +0.3V
LX, RSET to PGND .................................................-0.3V to +22V
SUP to AGND .........................................................-0.3V to +22V
DRVN to AGND.........................................-0.3V to (V
C1N, C2N to AGND ..................................-0.3V to (V
C1P to AGND .........................................................-0.3V to +30V
POUT to C2P, C1P to C2P......................................-0.3V to +22V
C2P, POUT to AGND..............................................-0.3V to +40V
GON, DRN to AGND ..............................................-0.3V to +40V
Step-Up Regulator, Internal Charge Pumps, Switch
Control, and Operational Amplifier for TFT LCDs
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
(V
2
V
V
V
SHDN Input Low Voltage
SHDN Input High Voltage
SHDN Input Current
REFERENCE
REF Output Voltage
REF Load Regulation
REF Sink Current
REF Undervoltage Lockout Threshold
OSCILLATOR AND TIMING
Frequency
Oscillator Maximum Duty Cycle
Duration to Trigger Fault Condition
AD E L, G D E L C ap aci tor C har g e C ur r ent
ADEL, GDEL Turn-On Threshold
STEP-UP REGULATOR
FB Regulation Voltage
FB Fault-Trip Level
FB Load Regulation
FB Line Regulation
FB Input Bias Current
CC
CC
OUT3 to AGND .......................................-0.3V to (V
CC
CC
CC
, CTL, HVS, SHDN, ADEL, GDEL to AGND ....-0.3V to +7.5V
_______________________________________________________________________________________
= +5V, Circuit of Figure 1, AVDD = SUP = +14V, T
Input Supply Range
Undervoltage Lockout Threshold
Quiescent Current
PARAMETER
V
V
V
V
SHDN = GND
No external load
0 < I
In regulation
Rising edge, typical hysteresis = 200mV
FB = COMP, C
FB = COMP, C
Falling edge
0 < I
V
V
CC
FB
FB
FBP
CC
FB
= 1.3V, not switching
= 1.1V, switching, no load, V
= 1.25V
LOAD
LOAD
rising, typical hysteresis = 50mV
= 4.5V to 5.5V
= V
CC
SUP
SUP
CC
< 50µA
< full
SUP
, V
+ 0.3V)
+ 0.3V)
+ 0.3V)
A
FBN
COMP
COMP
+ 0.3)
= 0°C to +85°C. Typical values are at T
= 0V
CONDITIONS
= 1nF
= 1nF, +25°C to +85°C
DRN to GON............................................................-30V to +30V
REF Short Circuit to AGND.........................................Continuous
RMS V
RMS DRVN Current...........................................................400mA
LX, PGND RMS Current Rating.............................................2.4A
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
Soldering Temperature (reflow) .......................................+260°C
40-Pin TQFN (derate 35.7mW/°C above +70°C) .......2857mW
SUP
CC
Current ................................................................50mA
disconnected,
A
1.238
1.235
1.238
1000
MIN
0.96
4.0
2.4
1.8
10
87
47
-1
= +25°C, unless otherwise noted.)
4
A
= +70°C)
1.250
1.246
1.246
1200
TYP
1.25
1.00
0.25
100
2.6
1.0
1.0
90
55
-1
4
5
1.262
1.256
1.256
MAX
1400
0.05
1.15
1.32
1.04
200
5.5
2.8
0.8
+1
10
93
65
6
6
UNITS
kHz
%/V
mA
mV
ms
µA
µA
µA
nA
%
%
V
V
V
V
V
V
V
V
V