CAT32TDI-GT3 ON Semiconductor, CAT32TDI-GT3 Datasheet - Page 2

• Manufacturer Part Number: CAT32TDI-GT3
• Description: IC WHITE LED DRIVER TSOT-23-6
• Manufacturer: ON Semiconductor
• Type: Backlight, White LEDr

Specifications of CAT32TDI-GT3

• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 800kHz ~ 1.6MHz
• Voltage - Supply: 2 V ~ 7 V
• Mounting Type: Surface Mount
• Package / Case: TSOT-23-6, TSOT-6
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 40mA
• Internal Switch(s): Yes
• Efficiency: 83%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Lead Free Status / Rohs Status: Details

Typical Application Circuit
Table 1. PIN DESCRIPTION
Pin Number
SOT23
TSOT−23 Pin Numbers
1
2
3
4
5
6
−
2.7 V
4.2 V
VIN
to
Pin Number
TDFN
8
5
6
4
3
2
1
Figure 1. Li−Ion Driver for Four High−Brightness White LEDs
CONTROL
DIMMING
4.7 mF
C1
PWM
Ground
SHDN
Power
Name
RSET
GND
LED
SW
VIN
5
4
SHDN
6
RSET
VIN
R
1.50 kW
Shutdown pin.
SET
Switch pin. This is the drain of the internal power switch. For minimum EMI, min-
imize 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.
Input supply pin. This pin should be bypassed with a capacitor to ground. A
4.7 mF capacitor mounted close to the pin is recommended.
Power Ground
L
CAT32
1
http://onsemi.com
6.8 mH
GND
SW
LED
2
2
1
3
D1
15 mA
Function
C2
1 mF
C1: Taiyo Yuden JMK212BJ475
C2: Taiyo Yuden EMK212BJ105
D1: Zetez ZHCS400
L1: Sumida CLQ4D106R8
(Panasonic ELJEA6R8)