MAX1620EEE+ Maxim Integrated Products, MAX1620EEE+ Datasheet - Page 8

• Manufacturer Part Number: MAX1620EEE+
• Description: IC LCD BIAS SUPP DGTL ADJ 16QSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1620EEE+

• Applications: LCD Display
• Current - Supply: 150µA
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Output Current: 0.07 A
• Input Voltage: 1.8 V to 20 V
• Switching Frequency: 300 KHz
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Digitally Adjustable LCD Bias Supplies
8
______________________________________________________________Pin Description
MAX1620
_______________________________________________________________________________________
—
—
—
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
PIN
MAX1621
10
11
12
13
14
15
16
—
—
—
1
2
3
4
5
6
7
8
9
LCDON
NAME
AGND
PGND
SHDN
DOUT
BATT
POK
DLO
SDA
SUS
POL
SCL
REF
V
DHI
DN
UP
FB
LX
DD
Logic-Level Input. A rising edge on DN decreases V
the counter to mid-scale.
System Management Bus Serial-Data Input and Open-Drain Output
Logic-Level Input. A rising edge on UP increases V
the counter to mid-scale.
System Management Bus Serial-Clock Input
Battery Voltage-Sense Input
Logic-Level Shutdown Input (active-low)
System Management Bus Suspend-Mode Input (active-low)
Power OK Voltage-Sense Input, 1V threshold
Reference Voltage Output. Bypass REF with 0.1µF to AGND.
Logic-Level Input. POL selects output voltage polarity: high = positive boost,
low = negative boost.
Open-Drain Output. LCDON controls LCD with external PNP.
Feedback Voltage Input
DAC Output Voltage
IC Input Supply, 3.0V to 5.5V
Analog Ground
Power Ground
Switching-Voltage Sense Input
External Transistor Drive, Low
External Transistor Drive, High
FUNCTION
OUT
OUT
. UP = DN = high resets
. UP = DN = high resets