SP7685ER-L Exar Corporation, SP7685ER-L Datasheet - Page 2

• Manufacturer Part Number: SP7685ER-L
• Description: LED Drivers 1.2A Bck/Bst Charge Pump LED Driver
• Manufacturer: Exar Corporation
• Series: -r

Specifications of SP7685ER-L

• Low Level Output Current: 0.4 A
• High Level Output Current: 2 A
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: DFN-10
• Minimum Operating Temperature: - 40 C
• Constant Current: -
• Constant Voltage: -
• Topology: PWM, Step-Down (Buck), Step-Up (Boost), Switched Capacitor (Charge Pump)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Backlight, Flash/Torch
• Type - Secondary: High Brightness LED (HBLED), White LED
• Frequency: 2.4MHz
• Voltage - Supply: 2.7 V ~ 5.5 V
• Voltage - Output: -
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

T
♦ denotes the specifications which apply over the full operating temperature range unless otherwise noted.
V
Output Current Pulse (Flash) ................................. 2A
Output Current Continuous (Torch) ..................... 0.4A
Storage Temperature ...................... -65°C to +150°C
Operating Temperature ..................... -40°C to +85°C
V
3x3 10 DFN .........................................O
ESD Rating. ................................................ 2kV HBM
Date: 6/20/06 Rev T
Operating Input Voltage
Quiescent Current
Shutdown Current
Oscillator Frequency
Charge Pump Equivalent
Resistance (x2 mode)
Charge Pump Equivalent
Resistance (x1 mode)
FB Reference Voltage
FB Reference Voltage Range
FB Pin Current
EN, FLASH Logic Low
EN, FLASH Logic High
EN, FLASH Pin Current
V
Thermal Shutdown
Temperature
Maximum Flash ON time
A
IN
EN
OUT
= -40°C to +85°C, V
, V
............................................................ 0.0V to 7V
Turn-on Time
OUT .......................................................................
PARAMETER
IN
=3.6V, C
MIN.
138
100
IN
2.7
1.6
45
1.3
SP7685, 1.2A Buck/BoostCharge Pump LED Driver
= 10μF, C
JA
= 40.5°C/W
-0.3V to 6V
TYP.
150
170
145
0.5
2.4
0.4
2.6
50
2
4
FC
=1.0μF, C
MAX.
400
500
0.7
162
0.4
3.6
5.5
0.5
0.5
55
3
2
2
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.
UNITS
OUT
MHz
mA
mV
mV
mV
μA
μA
μA
Ω
Ω
μs
o
V
V
V
s
C
=10μF. V
ELECTRICAL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
♦ ♦ ♦ ♦
♦ ♦ ♦ ♦
♦ ♦ ♦ ♦
♦ ♦ ♦ ♦
♦ ♦ ♦ ♦
♦ ♦ ♦ ♦
♦ ♦ ♦ ♦
♦ ♦ ♦ ♦
♦ ♦ ♦ ♦
♦ ♦ ♦ ♦
SHDN
V
1X Mode, I
FLASH = High, 2x mode
V
V
V
FLASH = GND
FLASH = High, R
FLASH = High. Guaranteed by design.
V
V
regulation
FLASH = High
IN
IN
FB
IN
FB
IN
= 2.7 - 5.5V FLASH = GND,
= 5.5V, V
= 3.6V
= 3.6V, FB within 90% of
= 0.3V
= 0.0V, V
= V
IN,
typical values at 25°C. The
LOAD
CONDITIONS
EN
IN
= 3.6V
= 100μA
= 0.0V
SET
© 2006 Sipex Corporation
= 53.6kΩ
.