MAX1516 Datasheet, PDF (10/26 Pages) Maxim Integrated Products – TFT-LCD DC-DC Converters with Operational Amplifiers

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