rt9911 Richtek Technology Corporation, rt9911 Datasheet - Page 9

• Manufacturer Part Number: rt9911
• Description: 6 Channel Dc/dc Converters
• Manufacturer: Richtek Technology Corporation

Absolute Maximum Ratings
Recommended Operating Conditions
Electrical Characteristics
(V
DS9911-04 August 2007
VDDM Minimum Startup Voltage
VDDM Operating Voltage
VDDM Over Voltage Protection
Shutdown Supply Current into VDDM I
CH1 (Sync-Boost or Syn-Buck)
Supply Current into VDDM
CH2 (Sync-Buck) Supply Current into
VDDM
CH3 (Sync-Boost) Supply Current
into VDDM
CH4 (Asyn-Boost) Supply Current
into VDDM
CH5 (Asyn-Inverter) Supply Current
into VDDM
CH6 (Asyn-Boost) Supply Current
into VDDM
Supply Current
Supply Voltage
Supply Voltage, V
Power Switch ---------------------------------------------------------------------------------------------------- −0.3V to (V
The Other Pins -------------------------------------------------------------------------------------------------- −0.3V to 7V
Power Dissipation, P
VQFN−40L 6x6 -------------------------------------------------------------------------------------------------- 2.778W
Package Thermal Resistance (Note 4)
VQFN-40L 6x6, θ
Junction Temperature ------------------------------------------------------------------------------------------ 150°C
Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------- 260°C
Storage Temperature Range --------------------------------------------------------------------------------- −65°C to 150°C
ESD Susceptibility (Note 2)
HBM (Human Body Mode) ----------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ------------------------------------------------------------------------------------------- 200V
Dimming Control Frequency Range, CH6 ---------------------------------------------------------------- 300Hz to 900Hz
Supply Voltage, V
Junction Temperature Range --------------------------------------------------------------------------------- −40°C to 125°C
Operation Temperature Range ------------------------------------------------------------------------------- −40°C to 85°C
DDM
= 3.3V, T
Parameter
A
= 25°C, unless otherwise specified)
JA
DDM
DDM
--------------------------------------------------------------------------------------------- 36°C/W
D
@ T
----------------------------------------------------------------------------------------- −0.3V to 7V
----------------------------------------------------------------------------------------- 2.4V to 5.5V
A
= 25°C
V
V
I
I
I
I
I
I
OFF
Q1
Q2
Q3
Q4
Q5
Q6
Symbol
ST
DDM
(Note 1)
(Note 5)
VDDM Pin Voltage
EN1 = EN2 = EN3 = EN4 = EN5
= EN6 = 0V
V
V
V
V
V
V
DDM
DDM
DDM
DDM
DDM
DDM
= 3.3V, Non-Switching
= 3.3V, Non-Switching
= 3.3V, Non-Switching
= 3.3V, Non-Switching
= 3.3V, Non-Switching
= 3.3V, Non-Switching
Test Conditions
(Note 3)
Min
2.4
5.9
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Typ
6.5
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1
RT9911
To be continued
www.richtek.com
Max
DD
430
350
350
300
300
350
1.6
5.5
10
--
+ 0.3V)
Units
uA
uA
uA
uA
uA
uA
uA
V
V
V
9