ssl3250a NXP Semiconductors, ssl3250a Datasheet - Page 21

• Manufacturer Part Number: ssl3250a
• Description: Photo ?ash Dual Led Driver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 9.
V
SSL3250A_2
Product data sheet
Symbol
High power LED parameters
V
I
I
V
V
Indicator LED parameters
I
I
Power MOSFET
R
Timing
f
t
t
LED
leak(LED)
I_IND
leak(I_IND)
sw
start(soft)
to(acc)
I
max
I
O
LED
ovp
DSon
I_IND
= 3.0 V to 5.5 V; T
Characteristics
Parameter
output voltage
LED current
leakage current on pin LED
voltage on pin LED
overvoltage protection voltage
current on pin I_IND
current variation on pin I_IND
leakage current on pin I_IND
drain-source on-state resistance
switching frequency
maximum duty cycle
soft start time
accuracy of time-out time
amb
= 40 C to +85 C, unless otherwise specified.
…continued
Rev. 02 — 21 April 2009
Conditions
on pin VO
IF_SEL = 0;
current control register = 08h;
STRB = 0
IF_SEL = 0;
current control register = 30h;
STRB = 0
IF_SEL = 0;
current control register = C0h;
STRB = 1
IF_SEL = 0;
current control register = F8h;
STRB = 1
default flash current;
IF_SEL = 1; EN1 = 1; EN2 = 1;
R_FL = High
default torch current;
IF_SEL = 1; EN1 = 0; EN2 = 1;
R_TR = High
ACT = 0; Shut-down mode
boost mode; I
follower mode
IF_SEL = 0 (I
IF_SEL = 1 (direct enable)
default indicator current;
IF_SEL = 1; EN1 = 1; EN2 = 0;
R_IND = High
ACT = 0; Shut-down mode
NFET
ACT = 0 to ACT = 1
response time
the absolute value can be
set with I
2
C
2
LED
C)
= 0.5 A
[6]
[3]
[3]
[7]
[7]
Min
-
40
106
356
450
450
106
-
-
350
9.8
2.5
2.5
-
-
-
-
1.08
-
-
10
Photo flash dual LED driver
Typ
-
50
125
395
500
500
125
-
300
-
10.5
-
-
10
-
-
200
1.2
-
160
-
SSL3250A
[1]
© NXP B.V. 2009. All rights reserved.
Max
9.5
60
144
435
550
550
144
0.5
-
-
11.0
17.5
20
-
15
1
425
1.32
82
400
10
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Unit
V
mA
mA
mA
mA
mA
mA
mV
mV
V
mA
mA
mA
%
mW
MHz
%
%
s
A
A