SP7680EB Exar Corporation, SP7680EB Datasheet - Page 3

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

Specifications of SP7680EB

• Product: Display Modules

Power-up time from Shutdown
(Note 3)
Soft Start Interval
(Note 4)
Soft Start Interval
(Note 5)
Shutdown Supply Current @ 25 °C
Shutdown Supply Current @ 85 °C
Short LED threshold
Thermal Shutdown Die Temperature
Thermal Shutdown Hysteresis
SDA, SCL low timeout
SDA, SCL input logic low voltage
SDL, SCA input logic high voltage
Note 1: The maximum output current is a derived spec I
Note 2: Dropout is defined when LED current goes 10% below nominal value as V
Sept 13-07 revI
(within 1X mode)
(transition 1X to 1.5X)
(V
PARAMETER
IN
*1.5 – V
LED
- V
DROPOUT
SP7680: Complete Backlight Solution
)/(max Req 1.5X mode).
MIN
1.6
50
– 0.5V
V
TYP
0.01
140
170
1.5
25
65
OUT
Page 3
5
V
MAX
OUT
0.4
1V
2
2
5
OUTMAX
–
ELECTRICAL SPECIFICATIONS continued
UNITS
ms
ms
=
μA
μA
μs
°C
°C
V
V
μs
V
Initial State: Status = 00000000
Final State: Status = 11000000
Main=Sub=Aux=00000000
Time measured from stop bit of
final state I
where V
V
Initial State: Status = 11000000
Main=Sub=Aux=00000000
Final State:
Main=Sub=Aux=11111100
Time measured from the raising
edge of STATUS acknowledge bit
of final state command to the point
where all current is within 5% of its
final value.
V
Initial State: Status = 11000000
Main=Sub=Aux=00000000
Final State: Status = 11000000
Main=Sub=Aux=11111100
Time measured from the raising
edge of CNTRL acknowledge bit of
final state command to the point
where output voltage is within 5%
of its final value.
If both SDA and SCL are low for
50ms, the part goes into shutdown
mode, set
V
If both SDA and SCL are low for
50ms, part goes into shutdown
mode set
V
Regulator turns off
Regulator turns on again @ 150°C
If both SDA and SCL are low for
50ms, part goes into shutdown
mode set STATUS=00000000
Regulator shutdown
Regulator enabled
IN
IN
IN
SUPPLY
SUPPLY
= 4.2V, V
= 4.0V, V
= 3.4V, V
= 4.2V
= 4.2V
OUT
© 2007 Sipex Corporation
CONDITIONS
IN
2
CNTRL = 11111110
= 4.1V
CNTRL = 11111110
CNTRL = 11111110
LED
C command to point
LED
LED
is lowered.
CNTRL = 11111110
CNTRL = 11111110
Status = 11000000
STATUS=00000000,
STATUS=00000000,
=3.3V
=3.3V
= 3.3V