SP6887 Datasheet, PDF (3/10 Pages) Exar Corporation – 4 CHANNEL REGULATED CHARGE PUMP WLED DRIVER

Thin QFN-16 3mmx3mm
PIN DESCRIPTION
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Name
EN
CTR0
CTR1
CTR2
RSET
VOUT
VIN
C1+
C1-
C2-
C2+
GND
LED4
LED3
LED2
LED1
Description
Enable Input, Active High
Digital Control Input 0
Digital Control Input 1
Digital Control Input 2
Set Resistance
Charge pump output connected to the LED anodes
Supply Voltage
Bucket Capacitor 1 Terminal
Bucket Capacitor 1 Terminal
Bucket Capacitor 2 Terminal
Bucket Capacitor 2 Terminal
Ground Reference
LED4 Cathode Terminal
LED3 Cathode Terminal
LED2 Cathode Terminal
LED1 Cathode Terminal
ELECTRICAL SPECIFICATIONS
Absolute Maximum Ratings
These are stress ratings only and functional operation is not implied. Exposure to absolute maximum ratings for
prolonged time periods may affect device reliability. All voltages are with respect to ground.
V_IN, V_OUT, LEDx, Pin Voltage............. -0.3V to 6V
EN, CTRx Pin Voltage ..................... -0.3V to V_IN
RSET Pin Voltage ........................... -0.3V to V_IN
Ambient Temperature Range ..... -40ºC to +85ºC
Storage Temperature Range .... -65ºC to +160ºC
Lead Temperature ................................. 300ºC
ESD Ratings – Human Body Model ........... 2000V
Recommended Operating Conditions
Vin ........................................ +2.7V to +5.5V
Input/Output/Bucket Capacitors...1±20%µF(typ)
Ambient Temperature ...............-40ºC to +85ºC
ILED per LED ..............................0mA to 30mA
Thermal Information
Parameter
Thermal Resistance (Junction to Ambient)
Power Dissipation P_D@T_A=25ºC
Symbol
θ_JA
P_D
Package
TQFN-16
TQFN-16
Max
34
2.9
Unit
ºC
W
Rev. C – 10/31/2007
SP6887 4 Channel WLED Driver
3/10
© 2007 Exar Corporation