MAX1621 datasheet(3/20 Pages) MAXIM

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Digitally Adjustable LCD Bias Supplies

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ELECTRICAL CHARACTERISTICS (continued)

(VDD = 3.3V, VBATT = 10V, TA = 0°C to +85°C, unless otherwise noted.)

TIMING CHARACTERISTICS

(TA = 0°C to +85°C, unless otherwise noted.)

-20µA

≤ IDOUT ≤ 0µA

ISDA = -6mA

VIN = 0V or VIN = VDD

VDD = 5.5V

3.0V

≤ VDD ≤ 3.6V

3.0V

≤ VDD ≤ 3.6V

48.39mV step size

VIN = 0V or VIN = VDD

Guaranteed monotonic

0µA

≤ IDOUT ≤ 40µA

0.4

µA

±1

SCL, SDA, SUS Input Leakage Current

0.6

SCL, SDA, SUS Input Low Voltage

2.3

1.4

SCL, SDA, SUS Input High Voltage

±1

0.6

0.007

DOUT Minimum Output Voltage (Note 3)

2.3

1.4

UP, DN, SHDN, POL Input High Voltage

LSB

DOUT Differential Nonlinearity

Bits

DOUT Resolution

±1

REF -

REF +

0.02

DOUT Maximum Output Voltage (Note 3)

UP, DN, SHDN, POL Input Leakage Current

µA

UP, DN, SHDN, POL Input Low Voltage

SDA Output Low Voltage

CONDITIONS

UNITS

MIN

TYP

MAX

PARAMETER

DIGITAL INPUTS AND OUTPUTS

(Note 4)

CONDITIONS

SCL Falling Edge to SDA Valid

Master Clocking in Data

µs

tDV

µs

tHD:STA

Start Condition SDA to SCL

Hold Time

µs

4.7

tSU:STA

Start Condition SCL to SDA

Setup Time

µs

tHIGH

SCL High Time

µs

4.7

tLOW

SCL Low Time

300

SCL/SDA Fall Time

µs

Pulse Width High (UP, DN)

µs

SCL/SDA Rise Time

tHD:DAT

SCL to SDA Data-Hold Time

500

tSU:DAT

SDA to SCL Data-Setup Time

µs

Pulse Width Low (UP, DN)

µs

Pulse Separation (UP, DN)

µs

Counter Reset Time

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

µs

tSU:STO

Stop Condition SCL_ to SDA_

Setup Time

MAX1620 (Figure 1)

MAX1621 (Figures 2 and 3)

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