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LED7707 Datasheet(PDF) 10 Page - STMicroelectronics

Part # LED7707
Description  6-rows 85 mA LEDs driver with boost regulator for LCD panels backlight
PDF  48 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LED7707 Datasheet(HTML) 10 Page - STMicroelectronics

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Electrical characteristics
LED7707
10/48
Symbol
Parameter
Test condition
Min
Typ
Max
Unit
OC and OV protections
VTH,OVP
Over-voltage protection
reference threshold
1.145
V
Soft-start and power management
EN, Turn-on level threshold
1.6
V
EN, Turn-off level threshold
0.8
DIM, high level threshold
1.3
DIM, low level threshold
0.8
EN, pull-up current
2.5
μA
SS, charge current
4
5
6
SS, end-of-startup threshold
2.0
2.4
2.8
V
SS, reduced switching
frequency release threshold
0.8
Current generators section
KR
Current generators gain
1850
V
ΔKR(1)
Current generators gain
accuracy
±2.0
%
VIFB
Feedback regulation voltage
700
750
mV
Irowx,
FAULT
Rows output maximum current
RRILIM = 21 kΩ
85
mA
Vrowx,
FAULT
LED short circuit detection
threshold
MODE tied to SGND
4.0
V
TMASK
LED short circuit detection
masking time
100
μs
VFAULT,
LOW
FAULT pin low-level voltage
IFAULT,SINK = 4 mA
200
350
mV
Thermal shutdown
TSHDN
Thermal shutdown
turn-off temperature
150
°C
Thermal shutdown hysteresis
30
1.
IROW = KR / RRILIM, IROW ≈ KR + RRILIM
Table 6.
Electrical characteristics (continued)
(VIN = 12 V; TA = 0 °C to 85 °C and LDO5 connected to AVCC if not otherwise specified)



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