tb62730wlg TOSHIBA Semiconductor CORPORATION, tb62730wlg Datasheet - Page 4

• Manufacturer Part Number: tb62730wlg
• Description: Step Up Type Dc-dc Converter For White Led
• Manufacturer: TOSHIBA Semiconductor CORPORATION

TOSHIBA
■ Explanation of the Terminal
■
Pin Assignment (top view)
No.
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
RSENS2
RSENS1
PGND1
PGND2
AGND
Symbol
SW1
SW2
OVP
EN1
EN2
FB+
VIN
13
SS
K2
K1
9
5
1
IL
14
10
TOP VIEW
6
2
Connected to the LED cathode.
Inputting the power supply voltage to the IC. The operating voltage is 2.8 to 5.5V.
Inputting the logic signals which set the modes.
"ON"
"OFF" ：Stop
Detecting the over-voltage.
Connected to the current-setting resistor: R1 for the flash.
Connected to the LED cathode.
Inputting the logic signals which set the modes.
"ON"
"OFF"
Switching the DC-DC converter. Nch MOSFET is built-in.
Connected to the current-setting resistor: R1 for the flash.
Ground terminal for analog.
Switching the DC-DC converter. Nch MOSFET is built-in.
Ground terminal for the power device.
Detecting the voltage of the current-setting resistor: R1 for the flash. It can change
Connected to the ILED setting resistor: R2 in the light mode.
The light-mode-current is changed depending on the setting ratio of R2 and R3.
Setting the constant to limit the current when DC-DC operation starts.
The rising time is changed depending on the constant of the condenser.
Ground terminal for the power device.
15
11
7
3
16
12
8
4
：DC-DC operation
：Flash mode
：Lighting mode
Ａ１
＊＊＊
Tentative
TOP VIEW
Function
13-Jun-07 (Rev0.1) TB62730WLG (Page. 4/11)
TB62730WLG