Datasheet

−30%
UV
OV
+15%
Ref
758mV
SSx
VFBx
TRIPx
10 µA
GND
LLx
PGNDx
LLx
VOx
LLx
PGNDx
LLx
ONx
ZC
OCP
PWM
+5/10%
−5/10%
ControlLogic
1
Shot
On/OffT ime
MinimumOn/Off
LightLoad,
OVP/UVP,
Discharge
Control
PGNDx
Delay
XCON
T ONSEL
Sdn
Fault
DR VLx
V5IN
V5IN
LLx
DR VHx
VBSTx
THOK
V5OK
PGNDx
PGOODx
V5IN
4V/3.7V
V5OK
THOK
BGR
V5FIL T
VO1
VBST1
DR VH1
LL1
DR VL1
PGND1
SwitcherController
V5DRV
Ref
Fault
Sdn
ON1 SS1
ANALOG/SUBGND
EN/SS
Control
TRIP1
VFB1
PGOOD1
EN1 EN2
GND
PGOOD2
VFB2
TRIP2
SS2
ON2
Sdn
Fault
Ref
V5DRV
SwitcherController
VO2
VBST2
DR VH2
LL2LL2
DR VL2
PGND2
1V
T ONSEL
4V
FrequencyControl
FAST
SLOW
160 °C/
150 °C
MID
TPS59124
SLUSA58 –JULY 2010 www.ti.com
FUNCTIONAL BLOCK DIAGRAM
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