MAX16928CGUP/V+T Maxim Integrated, MAX16928CGUP/V+T Datasheet - Page 7

• Manufacturer Part Number: MAX16928CGUP/V+T
• Description: LCD Drivers Automotive TFT Power Supply
• Manufacturer: Maxim Integrated

Specifications of MAX16928CGUP/V+T

• Rohs: yes

Maxim Integrated
PIN
10
11
12
1
2
3
4
5
6
7
8
9
Automotive TFT-LCD Power Supply with Boost
PGOOD
COMPV
PGNDP
NAME
GATE
ENP
N.C.
FBP
LXP
INA
DR
CP
FB
Boost Circuitry and 1.8V/3.3V Regulator Controller Enable Input. ENP has an internal 500kI pulldown
resistor. Drive high for normal operation and drive low to place the device in shutdown.
1.8V or 3.3V Regulator Output. DR has a 4.5mA (min) drive capability. For greater output current capa-
bility, use an external npn bipolar transistor whose base is connected to DR.
1.8V or 3.3V Regulator Feedback Input. FB is regulated to 1.8V or 3.3V. Connect FB to DR when power-
ing loads demanding less than 4.5mA. For greater output current capability, use an external npn bipo-
lar transistor whose emitter is connected to FB.
External p-Channel FET Gate Drive. GATE is an open-drain driver connected to the gate of the external
input series p-channel FET. Connect a pullup resistor between GATE and INA. During a fault condition,
the gate driver turns off and the pullup resistor turns off the FET.
Boost Converter Power Ground
Boost Converter Switching Node. Connect LXP to the inductor and catch diode of the boost converter.
Boost Circuitry and 1.8V/3.3V Regulator Controller Power Input. Connect INA to a 3V to 5.5V supply.
Boost Error Amplifier Compensation Connection. Connect a compensation network between COMPV to
GND.
Boost Converter Feedback Input. FBP is regulated to 1V. Connect FBP to the center of a resistive divid-
er connected between the boost output and GND.
No Connection. Not internally connected.
Open-Drain Power-Good Output. Connect PGOOD to INA through an external pullup resistor.
Positive-Gate Voltage Regulator Power Input. Connect CP to the positive output of the external charge
pump. Ensure that V
Characteristics table.
Converter and Gate Voltage Regulators
COMPV
TOP VIEW
PGNDP
GATE
ENP
N.C.
LXP
FBP
INA
DR
FB
CP
10
1
2
3
4
5
6
7
8
9
does not exceed the CP overvoltage threshold as given in the Electrical
+
TSSOP
MAX16928
EP
FUNCTION
20
19
18
17
16
15
14
13
12
11
SEQ
REF
FBGL
FBGH
COMPI
GND
DRVN
GH
CP
PGOOD
Pin Configuration
MAX16928
Pin Description
7