SP7680EB Exar Corporation, SP7680EB Datasheet - Page 2

• Manufacturer Part Number: SP7680EB
• Description: Display Modules & Development Tools Complete Backlight Solution
• Manufacturer: Exar Corporation

Specifications of SP7680EB

• Product: Display Modules

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.
V
Power Dissipation ……………………...………… Internally limited
Storage Temperature..………..…………………….-65°C to 150°C
Unless otherwise specified: V
-40°C to +85°C, Tj=-40°C to +125°C. Bold values apply over the full operating temperature range.
IN
, SDA, SCL, LEDx, V
Operating Input Voltage Range
Operating Input Current
(4 MAIN LEDs operating at 33uA
each, all other LEDs off, in 1X
mode)
Operating Input Current
(Charge pump in 1.5X mode with
all LEDs at 33uA each)
Standby mode Quiescent Current
Maximum Output Current (Note 1)
LED Current accuracy
LED Current matching
Current DAC Resolution
Current for DAC=000000
Current for DAC=000001
Current DAC LSB DAC=00010
Current DAC LSB DAC=00010
LED Dropout Voltage (Note 2)
Maximum LED Current
Maximum LED Current
Switching Frequency
Equivalent Resistance, 1x mode
Equivalent Resistance, 1.5x mode
Control Clock Frequency
Sept 13-07 revI
PARAMETER
OUT
.....................................-0.3V to 6.0V
IN
=
2.7V-5.5V, C
SP7680: Complete Backlight Solution
MIN
2.7
-10
1.6
-3
5
TYP
31.5
300
200
200
31
63
5
6
0
1
2
2
3
6
IN
Page 2
= 2.2μF, C
MAX
400
300
5.5
0.2
2.4
0.4
10
+3
50
10
8
5
Junction Temperature
(T
Ө
JA
J
OUT
= T
(1 square 1oz Cu)……………...…….………….33.3°C/W
A
UNITS
= 1μF, C
+ P
MHz
MHz
bits
mA
mA
mA
mA
mA
mA
mA
μA
μA
μA
%
%
Ω
Ω
V
V
D
•33.3°C/W)……………………….. 40°C to +125°C
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL SPECIFICATIONS
FL2
V
Status = 11000000
CNTRL = 00011110
Main=Sub=Aux=00000000
V
Status = 11000000
CNTRL = 11111110
Main=Sub=Aux=00000001
V
Status = 10000000
CNTRL = 00000000
Main=Sub=Aux=00000000
V
I
I
1x mode only
MAIN and SUB LEDs
AUX LED
I
I
After 63 counts MAIN and SUB
LEDs
After 63 counts AUX LED
V
V
LED
LED
LED
LED
IN
IN
I
IN
IN
IN
n=4.0V
=0.47μF, C
=4.0V, V
=3.4V
=3.4V
= 3.0V, V
= 3.4V, V
= 20mA
= 20mA
=20mA for MAIN and SUB;
=40mA for AUX
CONDITIONS
LED
© 2007 Sipex Corporation
LED
LED
FL2
= 3.3V
= 3.3V
= 3.3V
= 0.47μF, T
A
=