NXP Semiconductors
SSL3250A
Photo flash dual LED driver
Table 9. Characteristics …continued
V I = 3.0 V to 5.5 V; T amb = ? 40 ° C to +85 ° C, unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ [1]
Max
Unit
I 2 C
interface
V IL
V IH
LOW-level input voltage
HIGH-level input voltage
-
1.2
-
-
0.5
VIN
V
V
V OL
f SCL
LOW-level output voltage
SCL clock frequency
I sink = 3 mA
0
0
-
-
0.4
400
V
kHz
Digital levels: EN1, EN2, STRB, ACT
V IL
V IH
LOW-level input voltage
HIGH-level input voltage
digital
digital
0
1.2
-
-
0.5
-
V
V
Digital levels: IF_SEL pin
V IL
V IH
LOW-level input voltage
HIGH-level input voltage
IF_SEL pin
IF_SEL pin
0
0.5V I
-
-
0.5V I
V I
V
V
Digital levels: INT
V OL
I IH
LOW-level output voltage
HIGH-level input current
I sink = 3 mA
0
0
-
-
0.4
0.5
V
μ A
Temperature
T amb
ambient temperature
? 40
+25
+85
° C
T otp
T otp(hys)
overtemperature protection trip
overtemperature protection trip
temperature rising
temperature falling
-
-
150
20
-
-
° C
° C
hysteresis
[1]
[2]
[3]
[4]
[5]
[6]
[7]
All typical values are measured at T amb = 25 ° C and V I = 3.6 V.
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.
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)
Higher resistor values than the maximum are considered as no resistor is connected and therefore result in the default current setting.
Lower resistor values than the minimum will result in large currents being drawn from the device resulting in bad operation.
To accommodate two LEDs with a spread in V F between 2.7 V and 4.3 V each.
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.
SSL3250A_5
? NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 05 — 16 December 2009
22 of 26
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