RT8205L RICHTEK [Richtek Technology Corporation], RT8205L Datasheet - Page 7

• Manufacturer Part Number: RT8205L
• Description: High Efficiency, Main Power Supply Controller for Notebook Computer
• Manufacturer: RICHTEK [Richtek Technology Corporation]

Electrical Characteristics
DS8205L/M-05 June 2011
Input Supply
(V
VIN Standby Current
VIN Shutdown Supply
Current
Quiescent Power
Consumption
SMPS Output and FB Voltage
FBx Voltage
SECFB Voltage
Output Voltage Adjust
Range
V
Current
On-Time
On-Time Pulse Width
Minimum Off-Time
Ultrasonic Mode
Frequency
Soft-Start
Soft-Start Time
Current Sense
ENTRIPx Source
Current
ENTRIPx Current
Temperature
Coefficient
ENTRIPx Adjustment
Range
Current Limit
Threshold
Zero-Current
Threshold
OUTx
IN
= 12V, V
Parameter
Discharge
EN
= 5V, V
ENTRIP1
V
V
V
I
TC
t
t
t
I
I
P
+P
ON
OFF
SSx
ENTRIPx
VIN_SBY
VIN_SHDN
Symbol
VIN
FBx
SECFB
OUTx
= V
PVCC
IENTRIPx
ENTRIP2
= 2V, No Load, T
V
V
ENTRIPx = EN = GND
Both SMPS On, V
SKIPSEL = REF, V
V
DEM Mode
PWM Mode
Ultrasonic Mode
SMPS1, SMPS2
V
TONSEL = GND
TONSEL = REF
TONSEL =
VREG5
FBx = 1.9V
SKIPSEL = VREG5 or VREG3
Internal Soft-Start
V
In Comparison with 25°C
V
GND − PHASEx, V
GND − PHASEx in DEM
OUTx
ENTRIPx
ENTRIPx
IN
IN
OUT2
= 6V to 25V, ENTRIPx = GND
= 6V to 25V,
= 0.5V, V
= 3.3V
= 0.9V
= I
ENTRIPx
Test Conditions
A
(Note 6)
ENTRIPx
= 25°C, unless otherwise specified)
(Note 5)
FBx
V
V
V
V
V
V
OUT1
ENTRIPx
OUT1
OUT2
OUT1
OUT2
OUT1
OUT2
x R
= 2.1V,
ENTRIPx
= 0V
= 5V,
= 5.05V (200kHz)
= 3.33V (250kHz)
= 5.05V (300kHz)
= 3.33V (375kHz)
= 5.05V (400kHz)
= 3.33V (500kHz)
= 2V
(Note 6)
0.515
1.975
1895
1227
Min
1.92
999
647
895
475
200
180
9.4
22
10
--
--
--
--
--
--
--
--
2
RT8205L/M
2.032
2105
1403
1052
4700
1110
200
Typ
200
740
555
300
20
33
10
45
--
5
2
3
--
2
2
2
To be continued
www.richtek.com
2.025
2315
1221
1579
1209
10.6
Max
2.08
833
635
400
220
40
5.5
--
--
--
--
--
3
--
7
--
--
ppm/°C
Unit
mW
kHz
mV
mV
ms
μA
μA
mA
μA
ns
ns
V
V
V
V
7