SP7682 EXAR [Exar Corporation], SP7682 Datasheet - Page 2

• Manufacturer Part Number: SP7682
• Description: Backlight and Flash Driver in QFN 3mm x 3mm
• Manufacturer: EXAR [Exar Corporation]

Unless otherwise specified: V
Bold values apply over the full operating temperature range (-40°C to 85°C).
Operating VIN Range
Operating Input Current
Quiescent Current
Shutdown Supply Current
ILED Voltage for DAC=000000
I
I
I
I
Current DAC Resolution
Backlight Current DAC LSB
Flash Current DAC LSB
DAC Current Accuracy
Switching Frequency
Equivalent Resistance, 1x mode
Equivalent Resistance, 1.5x mode
Equivalent Resistance, 2x mode
LEDx Pin dropout voltage
FLASH Pin dropout voltage
Thermal Regulation
Thermal Shutdown Die Temperature
Thermal Shutdown Hysteresis
Over-current Protection
Over-voltage protection
Settle time (T
SDA, SCL, SETB, SETFL input logic low
voltage
SDA, SCL, SETB, SETFL input logic
high voltage
Turn-off time (T
Time Duration before standby, SP7682
Time Duration before standby, SP7682A
Enable logic low voltage
Enable logic high voltage
LED
LED
FLASH
FLASH
for DAC=000001
for DAC=111111
These are stress ratings only and functional operation of the
device at these ratings or any other above those indicated in the
operation sections of the specifications below is not implied.
Exposure to absolute maximum rating conditions for extended
periods of time may affect reliability.
for DAC=000001
for DAC=110010
Sept 27-07 rev G
S
PARAMETER
) after last count
OFF
) into shutdown
IN
=3.6V, C
30.2
MIN
IN
465
150
2.7
1.9
0.7
5.4
1.6
1.6
-7
2
1
=4.7uF, C
SP7682: Backlight and Flash Driver
TYP
0.01
31.5
500
160
0.5
0.5
2.4
1.0
10
10
20
25
10
2
6
8
4
2
OUT
Page 2
=2.2uF, C
MAX
34.8
0.25
0.25
0.01
535
170
100
5.5
2.9
1.8
1.2
6.0
0.4
0.4
50
1
0
7
6
3
UNITS
FLY
%/°C
Ohm
Ohm
Ohm
MHz
V
Power Dissipation………………………….Internally limited
Storage Temperature..……..………………-65 °C to 150 °C
Junction Temperature................................-40°C to +125°C
ESD @ LED pins……………...…………………+/-4kV HBM
ESD all other pins………….…………………....+/-2kV HBM
mA
mA
mA
mA
mA
mA
mA
mA
μA
μA
Bit
°C
°C
μs
μs
%
CC
V
V
V
A
V
V
V
V
V
s
s
=1uF, T
, Enable, SCL, SDA, V
Standby Mode
V
Measure LED1-LED4 and FLASH pins
Measure current into LED1-LED4
Measure current into LED1-LED4
Measure current into FLASH
Measure current into FLASH
5mA< I
Iout=200mA
Iout=80mA
Iout=500mA
I
I
Driver turns off
Driver turns on again
Vout =0V
Vout open
To 1x mode from STANDBY mode
EN pin high to low
TD0=TD1=0V, I
bits TOUT0, TOUT1)
I
Driver shutdown
Driver enabled
LED
FLASH
FLASH
EN
A
=20mA, measure mode switching
= -40°C to +85°C, Tj=-40°C to +125°C.
= 0V (shutdown), Ta = 25°C
=200mA, measure mode switching
>I
LED
THRESHOLD
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL SPECIFICATIONS
<30mA, 80mA< I
FLASH
FLASH
CONDITIONS
= 230mA
, V
© 2007 Exar Corporation
LED
>I
THRESHOLD
..............-0.3V to 6.0V
FLASH
<500mA
(defined by
1