tb62730wlg TOSHIBA Semiconductor CORPORATION, tb62730wlg Datasheet - Page 7

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

TOSHIBA
Characteristics of constant-current of SINK（Topr = 25°C, Vcc = 3.6V if not specified.）
Input Logic level
Output Current of SS terminal
Lighting time in flash mode
K1-3 and RSENS1-3
Resistance between
ISET output voltage
ISET output current
Characteristics
(Light mode)
(Light mode)
VIN(2.8∼4.2V)
3300pF
H level
L level
22µF
V
I
(LMODE)
(LMODE)
Symbol
I
(FB+)
VIH
VIL
I
SS
EN2
EN1
SS
VIN
GND
Recommended Application
PGND1 PGND2
R2=47kΩ, R3=8.2kΩ
EN1 = “H”, EN2 = “L”
EN1 = “H”, EN2 = “L”
EN1=”H”, EN2=”H”
L
SW1
VIN=3.0∼4.2V
EN1,EN2,EN3
EN1,EN2,EN3
Test Conditions
V
R2=47kΩ
EN1 = “H”
At start up
EN2 = “L”
VIN=3.6V
LED
＝4.2V
SW2
IL
S-Di
47kΩ
RSENS1
RSENS2
OVP
Tentative
FB+
K1
K2
13-Jun-07 (Rev0.1) TB62730WLG (Page. 7/11)
17.55
0.865
-0.15
18.5
2.00
Min.
1.3
-
8.2kΩ
800mA (Typ.)
19.50
0.910
19.5
0.25
2.50
Typ.
TB62730WLG
-
-
V
0.375Ω
VIN +0.15
LED
21.45
0.955
Max.
20.5
3.00
0.4
-
10µF
Unit
ms
µA
µA
Ω
V
V