TB62763FMG Datasheet, PDF (8/15 Pages) Toshiba Semiconductor – Step Up Type DC/DC Converter for White LED

Function diagram
The mode selecting shown below with logic input EN terminal.
EN
MODE
H
Operation mode
L
Shutdown mode
TB62763FMG
State Transition Diagram
(5) ^{OVP detect}
(4)
OVP terminal voltage > protection voltage
(3) _Operation
Mode
(6)
OVP terminal voltage < Recover voltage
(2)
EN=L→H
(7)
EN=H→L
(1) _Shutdown
Mode
State
(1) Shutdown
(2) EN: L to H
(3) Operation
(4) OVP detect
(5) OVP operation
(6) OVP release
(7) EN: H toL
boost
circuit
Stop
－
Operate
－
Stop
－
－
OVP
circuit
Stop
－
Operate
－
Operate
－
－
OSC
circuit
Stop
－
Operate
－
Stop
－
－
Internal
reference circuit
Stop
－
Operate
－
Operate
－
－
Soft start
circuit
Stop
－
Operate
－
Operate
－
－
8
2015-02-27