CAT32 Datasheet, PDF (2/14 Pages) Catalyst Semiconductor – CMOS White LED Driver

CAT32
ORDERING INFORMATION
Part Number
CAT32EKT-TE7
CAT32RD4-TE7
CAT32RD4
CAT32TDI-TE7
Package
6-lead, thin SOT23
8-pad TDFN (3x3mm)
8-pad TDFN (3x3mm)
6-lead thin SOT23,
Lead Free
Tube
Quantity
—
—
120
Reel
Quantity
3000
3500
—
Package
Marking Code
BD
CCEM
CCEM
—
3000
LL
PIN CONFIGURATION
SW 1
GND 2
LED 3
CAT32
6 VIN
5 SHDN
4 RSET
Power
GROUND
1
VIN ²
SHDN ³
RSET 4
8 SW
7 NC
6 LED
5 GND
6-Lead SOT-23
1mm maximum height
θ
[Free Air]
PIN DESCRIPTIONS
Pin Number
Pin Number
SOT23
TDFN
1
8
2
5
3
6
4
4
5
3
6
2
—
1
(Top View)
TDFN Package: 3mm x 3mm
0.8mm maximum height
(RD4)
Name
SW
GND
LED
RSET
SHDN
VIN
Power
Ground
Function
Switch pin. This is the drain of the internal power
switch. For minimum EMI, minimize the trace
area connected to this pin.
Ground pin. Connect pin 2 to ground.
LED (cathode) connection pin.
RESET pin. A resistor connected from pin 4 to
ground sets the LED current. This pin is also
used to dim the LEDs.
Shutdown pin.
Input supply pin. This pin should be bypassed
with a capacitor to ground. A 4.7µF capacitor
mounted close to the pin is recommended.
Power Ground
Doc. No. 5001, Rev. AC
2