MAX1518 Maxim Integrated Products, MAX1518 Datasheet - Page 10

• Manufacturer Part Number: MAX1518
• Description: (MAX1516 - MAX1518) TFT-LCD DC-DC Converters
• Manufacturer: Maxim Integrated Products

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4
TFT-LCD DC-DC Converters with
Operational Amplifiers
10
PIN
10
11
12
13
14
15
16
17
18
19
1
2
3
4
5
6
7
8
9
______________________________________________________________________________________
MAX1516 MAX1517
AGND
BGND
PGND
OUT1
NEG1
POS1
SRC
N.C.
N.C.
N.C.
N.C.
SUP
N.C.
N.C.
N.C.
N.C.
REF
I. C.
I. C.
AGND
BGND
NAME
PGND
NEG1
NEG2
NEG3
OUT1
POS1
OUT2
POS2
POS3
OUT3
SRC
N.C.
N.C.
SUP
N.C.
REF
I. C.
MAX1518
AGND
PGND
BGND
NEG1
NEG2
NEG4
NEG5
OUT1
POS1
OUT2
POS2
POS3
OUT3
POS4
OUT4
POS5
SRC
SUP
REF
Switch Input. Source of the internal high-voltage p-channel MOSFET. Bypass SRC to
PGND with a minimum 0.1µF capacitor close to the pins.
Reference Bypass Terminal. Bypass REF to AGND with a minimum of 0.22µF close to
the pins.
Analog Ground for Step-Up Regulator and Linear Regulators. Connect to power
ground (PGND) underneath the IC.
Power Ground. PGND is the source of the main step-up n-channel power MOSFET.
Connect PGND to the input-capacitor ground terminals through a short, wide PC board
trace. Connect to analog ground (AGND) underneath the IC.
Operational-Amplifier 1 Output
Operational-Amplifier 1 Inverting Input
Operational-Amplifier 1 Noninverting Input
Operational-Amplifier 2 Output for the MAX1518 and MAX1517. Not Internally
Connected for the MAX1516.
Operational-Amplifier 2 Inverting Input for the MAX1518 and MAX1517. Not Internally
Connected for the MAX1516.
Operational-Amplifier 2 Noninverting Input for the MAX1518 and MAX1517. Internally
Connected for the MAX1516. Connect this pin to GND for the MAX1516.
Analog Ground for Operational Amplifiers. Connect to power ground (PGND)
underneath the IC.
Operational-Amplifier 3 Noninverting Input for the MAX1518. Not Internally Connected
for the MAX1517 and MAX1516.
Operational-Amplifier 3 Output. Not Internally Connected for the MAX1517 and
MAX1516.
Operational-Amplifier Power Input. Positive supply rail for the operational amplifiers.
Typically connected to V
Operational-Amplifier 4 Noninverting Input for the MAX1518. Operational-Amplifier 3
Noninverting Input for the MAX1517. Not Internally Connected for the MAX1516.
Operational-Amplifier 4 Inverting Input for the MAX1518. Operational-Amplifier 3
Inverting Input for the MAX1517. Not Internally Connected for the MAX1516.
Operational-Amplifier 4 Output for the MAX1518. Operational-Amplifier 3 Output for the
MAX1517. Not Internally Connected for the MAX1516.
Operational-Amplifier 5 Noninverting Input for the MAX1518. Internally Connected for
the MAX1517 and MAX1516. Connect this pin to GND for the MAX1517 and MAX1516.
Operational-Amplifier 5 Inverting Input. Not Internally Connected for the MAX1517 and
MAX1516.
MAIN
. Bypass SUP to BGND with a 0.1µF capacitor.
FUNCTION
Pin Description