LED7708 STMicroelectronics, LED7708 Datasheet - Page 13

• Manufacturer Part Number: LED7708
• Description: LED Lighting Drivers 16 Ch 85mA LED 3.6 to 36V 250kHz
• Manufacturer: STMicroelectronics

Specifications of LED7708

• Rohs: yes

LED7708
5
Table 6.
Supply section
Boost controller
V
V
V
UVLO,OFF
Symbol
I
V
t
GATE,Pk
UVLO,ON
t
V
t
VSI,OFF
V
ON,min
K
r,GATE
f,GATE
VSI,ON
f
LDO3
FSW
VDR
SW
Electrical characteristics
(V
Electrical characteristics
LREN turn-on threshold
LREN turn-off threshold
LREN pull-up current
LDO3 undervoltage lockout
upper threshold
LDO3 undervoltage lockout
lower threshold
VSI turn-on threshold
VSI turn-off threshold
3.3 V LDO output voltage
3.3 V LDO load regulation
3.3 V LDO drop-out voltage
5 V LDO output voltage
5 V LDO load regulation
5 V LDO drop-out voltage
Minimum switching on-time
Default switching frequency
Synchronization input
frequency
Switching frequency
constant
Gate driver current capability
Gate driver rise time
(10 to 90%)
Gate driver fall time
(90 to10%)
IN
= 12 V; T
Parameter
AMB
= 25 °C and VSI connected to LDO3 if not otherwise specified.)
I
Doc ID 022698 Rev 1
I
LDO3
VDR
0 mA ≤
I
I
C
LDO3
V
0 mA ≤
VDR
C
3.6 V ≤
V
=
VIN
=
L
6 V ≤
R
L
VIN
40 mA
=3.3 nF, sourcing
FSW to LDO3
40 mA
=3.3 nF, sinking
Conditions
=3.6 V,
FSW
=
C
=6 V,
=
0 mA
I
L
0 mA, DEN=0
LDO3
V
I
=3.3 nF
V
VDR
=
VIN
, V
VIN
, V
100 kΩ
,
DEN=1
≤ 28 V
≤ 40 mA
LDO3
DEN=0
≤ 28 V
DEN=1
VDR
≤ 40 mA
=
=
4.5 V
3.2 V
x10
Min.
180
150
550
180
2.6
2.6
3.2
4.5
4.4
1
10
Electrical characteristics
x10
Typ.
270
200
100
610
2.9
2.7
3.0
2.7
3.3
5.0
5.0
1.9
2.1
30
10
60
3
9
10
x10
Max.
1020
100
200
170
670
1.4
3.0
3.1
3.4
5.5
5.6
10
Hz • Ω
Unit
kHz
mV
mV
mV
µA
ns
ns
V
V
V
A
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