RT9986 RICHTEK [Richtek Technology Corporation], RT9986 Datasheet - Page 23

• Manufacturer Part Number: RT9986
• Description: 7-CH DC/DC Converter for DSC
• Manufacturer: RICHTEK [Richtek Technology Corporation]

DS9986-00 May 2011
CH3
Step-Down
CH4
Step-Down
CH5
Step-Up
CH6
Inverter
CH7
WLED
Thermal
Current
Limit
FB3 UVP
FB3 Over
Load
Current
Limit
FB4 UVP
FB4 Over
Load
Current
Limit
PVDD5
OVP
FB5 UVP
FB5 Over
Load
Current
Limit
VOUT6
OVP
FB6 UVP
FB6 Over
Load
Current
Limit
PVDD7
OVP
Thermal
Shutdown
Protection
type
P-MOSFET
Current > 1.6A
FB3
soft-start end.
FB3
P-MOSFET
Current > 1.6A
FB4
soft-start end.
FB4 < 0.7V
N-MOSFET
Current > 1.2A
PVDD5 > 21V
FB5
soft-start end.
FB5 < 1.1V
P-MOSFET
Current > 1.5A
VOUT6 < 13V
FB6 >1.2V
FB6 > 0.74V
N-MOSFET
Current > 0.8A
PVDD7 > 15V
Temperature >
160 C
Threshold (typical)
Refer to Electrical
0.4V after
0.7V
0.4V after
0.6V after
spec
N-MOSFET off, P-MOSFET off.
Automatic reset at next clock
cycle.
N-MOSFET off, P-MOSFET off.
IC Shutdown when OL occur
each cycle until 100ms.
N-MOSFET off, P-MOSFET off.
Automatic reset at next clock
cycle.
N-MOSFET off, P-MOSFET off.
IC Shutdown when OL occur
each cycle until 100ms.
N-MOSFET off, P-MOSFET off.
Automatic reset at next clock
cycle.
N-MOSFET off, P-MOSFET off.
N-MOSFET off, P-MOSFET off.
IC Shutdown when OL occur
each cycle until 100ms.
P-MOSFET off. Automatic reset
at next clock cycle.
P-MOSFET off.
P-MOSFET off.
IC Shutdown when OL occur
each cycle until 100ms.
N-MOSFET off, P-MOSFET off.
Automatic reset at next clock
cycle.
Shutdown CH7
All channels stop switching
Protection methods
Shutdown
Delay time
100ms
No-delay
100ms
100ms
No-delay
100ms
100ms
No-delay
No-delay
100ms
100ms
No-delay
No-delay
100ms
100ms
Not
applicable
No-delay
IC
reset or all enable
pins set to low
reset or all enable
pins set to low
reset or all enable
pins set to low
reset or all enable
pins set to low
reset or all enable
pins set to low
reset or all enable
pins set to low
reset or all enable
pins set to low
reset or all enable
pins set to low
reset or all enable
pins set to low
reset or all enable
pins set to low
reset or all enable
pins set to low
pins set to low
reset or all enable
pins set to low
reset or all enable
pins set to low
reset or all enable
pins set to low
reset or all enable
pins set to low
reset or all enable
pins set to low
VDDM power
VDDM power
VDDM power
VDDM power
VDDM power
VDDM power
VDDM power
VDDM power
VDDM power
VDDM power
VDDM power
VDDM power
reset or all enable
VDDM power
VDDM power
VDDM power
VDDM power
VDDM power
Reset method
RT9986
www.richtek.com
23