LED7706 STMicroelectronics, LED7706 Datasheet - Page 9

• Manufacturer Part Number: LED7706
• Description: IC LED DRIVR WHT BCKLT 24-VFQFPN
• Manufacturer: STMicroelectronics
• Type: Backlight, White LEDr

Specifications of LED7706

• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 6
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 250kHz ~ 1MHz
• Voltage - Supply: 4.5 V ~ 36 V
• Voltage - Output: 36V
• Mounting Type: Surface Mount
• Package / Case: 24-VFQFN, 24-VFQFPN
• Current - Output / Channel: 30mA
• Internal Switch(s): Yes
• Operating Supply Voltage: 4.5 V to 36 V
• Maximum Supply Current: 1 mA
• Maximum Power Dissipation: 2300 mW
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• For Use With: 497-10043 - BOARD EVAL LCD BACKLIGHT LED7706497-8360 - BOARD EVAL FOR LED7707497-6445 - EVALUATION BOARD FOR LED7706
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Efficiency: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

LED7706
Table 5.
1. I
Power switch
OC and OV protections
Soft-start and power management
Current generators section
Thermal shutdown
ΔV
Symbol
V
V
V
ΔK
T
R
ON,min
V
T
FAULT
TH,OVP
TH,FRD
OVP,FRD
V
FAULT,
LOW
ROW
SHDN
DSon
K
rowx,
K
DIM-
IFB
R
B
R
(1)
= K
R
LX current coefficient
Internal MOSFET on-resistance
Over voltage protection
reference threshold (OVSEL)
Floating channel detection
threshold
Voltage gap between OVP and
FRD thresholds
EN, Turn-on threshold
EN, Turn-off threshold
DIM, high level threshold
DIM, low level threshold
EN, pull-up current
SS, charge current
SS, end-of-startup threshold
SS, reduced switching
frequency release threshold
Minimum dimming on-time
Current generators gain
Current generators gain
accuracy
Feedback regulation voltage
Shorted LED fault detection
threshold
FAULT pin low-level voltage
Thermal shutdown
turn-off temperature
Thermal shutdown hysteresis
/ R
Electrical characteristics (continued)
RILIM
, ΔI
Parameter
ROW
/I
ROW
≈
ΔK
R
/K
R
+ ΔR
RILIM
R
MODE tied to SGND
MODE connected to AVCC
I
FAULT,SINK
BILIM
/R
RILIM
= 600 kΩ
Test condition
= 4 mA
1.190
1.100
5·10
Min.
Electrical characteristics
0.8
1.3
2.0
4
5
1.234
1.145
6·10
Typ.
280
500
987
400
200
150
2.5
2.4
0.8
3.4
6.0
90
30
5
5
7·10
1.280
1.190
Max.
±2.0
500
350
1.6
0.8
2.8
6
5
Unit
mΩ
mV
mV
mV
μA
ns
°C
%
9/46
V
V
V
V
V
V