MAX1620EEE+ Maxim Integrated Products, MAX1620EEE+ Datasheet - Page 13

• 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

* Initial register state after power-up.
Table 1. MAX1621 Configuration Byte
with REGSEL = 0 (write to
BIT
7
6
5
4
3
2
1
0
SUS-LCDON
SUS-SHDN
D4 (MSB)
REGSEL
NAME
D3
D2
D1
D0
______________________________________________________________________________________
STATE*
POR
Digitally Adjustable LCD Bias Supplies
—
0
0
1
0
0
0
0
Register Select. A zero in
this bit writes the next two
bits into the SUS register
and the remaining five bits
into the DAC register
(Figure 7).
With SUS = low,
1 = operating, and
0 = shutdown.
With SUS = low,
1 = LCD on, and
0 = LCD off.
DAC Input Data
Table 3. MAX1621 Status Bits
BIT
7
6
5
4
3
2
1
0
SUS register)
DESCRIPTION
D4 (MSB)
NAME
POK
D3
D2
D1
D0
—
—
If the voltage applied to POK is
greater than 0.992V and the
MAX1621 is not shut down, this bit
returns 1; otherwise, it returns 0.
Reserved for future use.
Reserved for future use.
DAC Register Data
* Initial register state after power-up.
Table 2. MAX1621 Configuration Byte
with REGSEL = 1 (write to OPR register)
BIT
DESCRIPTION
7
6
5
4
3
2
1
0
OPR-LCDON
OPR-SHDN
D4 (MSB)
REGSEL
NAME
D3
D2
D1
D0
STATE*
POR
—
1
1
1
0
0
0
0
Register Select. A one in
this bit writes the next two
bits into the OPR register
and the remaining five bits
into the DAC register
(Figure 7).
With SUS = high,
1 = operating, and
0 = shutdown.
With SUS = high,
1 = LCD on, and
0 = LCD off.
DAC Input Data
DESCRIPTION
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