LED7707TR STMicroelectronics, LED7707TR Datasheet - Page 8

• Manufacturer Part Number: LED7707TR
• Description: IC LED DRIVR WHT BCKLT 24-VFQFPN
• Manufacturer: STMicroelectronics
• Type: Backlight, White LEDr

Specifications of LED7707TR

• 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
• Operating Temperature: 0°C ~ 85°C
• Current - Output / Channel: 85mA
• Internal Switch(s): Yes
• High Level Output Current: 85 mA
• Operating Supply Voltage: 4.5 V to 36 V
• Maximum Supply Current: 1 mA
• Maximum Power Dissipation: 2.3 W
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• For Use With: 497-10044 - BOARD EVAL LCD BACKLIGHT LED7707
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Efficiency: -
• Lead Free Status / Rohs Status: Details
• Other names: 497-8492-2

Electrical characteristics
4
Table 5.
8/47
Supply section
LDO linear regulator
Boost section
V
V
Symbol
I
UVLO,OFF
IN,SHDN
t
UVLO,ON
V
V
ON,min
V
I
V
AVCC
f
LDO5
IN,Q
SW
BST
IN
Input voltage range
Boost section output voltage
LDO output and IC supply
voltage
Operating quiescent current
Operating current in shutdown
LDO5 under voltage lock out
upper threshold
LDO5 under voltage lock out
lower threshold
Line regulation
LDO dropout voltage
LDO maximum output current
Minimum switching on-time
Default switching frequency
Minimum FSW sync frequency
FSW sync input low level
FSW sync input high level
FSW sync input hysteresis
FSW sync min ON time
SYNC output duty-cycle
SYNC output high level
SYNC output low level
Electrical characteristics
V
Electrical characteristics
a. Specification referred to T
IN
design, characterization and statistical correlation.
= 12 V; T
Parameter
J
= 25 °C and LDO5 connected to AVCC if not otherwise specified
J
from 0 °C to +85 °C. Specification over the 0 to +85 °C T
EN high
I
R
R
DIM tied to SGND.
EN low
6 V
I
V
V
FSW connected to AVCC
FSW connected to AVCC
(Internal oscillator selected)
I
I
LDO5
LDO5
SYNC
SYNC
LDO5
LDO5
RILIM
SLOPE
≤
= 0 mA
V
= 10 mA (-10 % drop)
= 10 μA
= -10 μA
> V
< V
= 51 kΩ, R
IN
= 680 kΩ
≤
UVLO,ON
UVLO,OFF
Test condition
36 V, I
BILIM
LDO5
= 220 kΩ,
= 30 mA
V
-20V
Min.
570
240
AVCC
4.5
4.4
3.5
25
J
Typ.
range are assured by
660
220
4.0
3.7
20
80
40
20
30
34
5
1
(a)
Max.
120
200
770
350
270
5.5
4.3
36
36
30
30
60
30
40
20
LED7707
Unit
kHz
mA
mV
mA
mV
mV
μA
ns
%
%
V
V
V
V