SSL3250A_3

© NXP B.V. 2009. All rights reserved.

Product data sheet

Rev. 03 — 30 June 2009

22 of 26

NXP Semiconductors

SSL3250A

Photo flash dual LED driver

[1]

[2]

When operating in an extended input voltage range, the device will be fully functional but has a reduced performance specification on

certain parameters. An extended input voltage range is entered when the input voltage is dropping below 3.0 V, assuming the device is

not in undervoltage lockout mode.

[3]

When no external resistor is connected, the device will apply a default current setting. See Section 8.3 for details. Corresponding pins

should then be connected to high (> 1.4 V)

[4]

Higher resistor values than the maximum are considered as no resistor is connected and therefore result in the default current setting.

[5]

Lower resistor values than the minimum will result in large currents being drawn from the device resulting in bad operation.

[6]

[7]

Only valid in Boost mode: typically in a dual LED configuration. When in linear mode, used in specific cases of single LED applications,

excess voltage will fall over the LED pin.

LOW-level input voltage

-

-

0.5

V

HIGH-level input voltage

1.2

-

VIN

V

LOW-level output voltage

0

-

0.4

V

SCL clock frequency

0

-

400

kHz

Digital levels: EN1, EN2, STRB, ACT

LOW-level input voltage

digital

0

-

0.5

V

HIGH-level input voltage

digital

1.2

-

-

V

Digital levels: IF_SEL pin

LOW-level input voltage

IF_SEL pin

0

-

V

HIGH-level input voltage

IF_SEL pin

V

Digital levels: INT

LOW-level output voltage

0

-

0.4

V

HIGH-level input current

0

-

0.5

µA

Temperature

ambient temperature

−40

+25

+85

°C

overtemperature protection trip

temperature rising

-

150

-

°C

overtemperature protection trip

hysteresis

temperature falling

-

20

-

°C

Table 9.

Symbol

Parameter

Conditions

Min

Max

Unit