SI-8205NHD_11 SANKEN [Sanken electric], SI-8205NHD_11 Datasheet
SI-8205NHD_11
Manufacturer Part Number
SI-8205NHD_11
Description
Surface-Mount, Current Mode Control, Synchronous Rectifier Step-down Switching Mode Regulator ICs
Manufacturer
SANKEN [Sanken electric]
Datasheet
1.SI-8205NHD_11.pdf
(2 pages)
■Electrical Characteristics
1-1-3 DC/DC Converter ICs
■Features
■Applications
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Reference Voltage
Temperature Coefficient of Reference Voltage
Efficiency
Oscillation Frequency 1
Oscillation Frequency 2
Line Regulation
Load Regulation
Overcurrent Protection Starting Current
Quiescent Circuit Current
EN/SS Pin
OVP Start Voltage
Thermal Protection Start Temperature
Error Amplifier Voltage Gain
Error Amplifier Transformer Conductance
Current Sense Amplifier Impedance
Maximum ON Duty
Minimum ON Time
SI-8205NHD
50
Compact surface-mount (HSOP8) package
Wide input voltage range (V
Synchronous rectifier mode
Output current: 3 A
Reference voltage and accuracy of 0.5 V ±1%
Oscillation frequency: 200 kHz to 1 MHz
A ceramic capacitor can be used for output
Output can be disabled
Undervoltage Lock Out
Soft start function
Power supply for LCD module
Power supply for notebook PC
Onboard local power supplies
Power supply for LBP/PPC
ICs
Open Voltage
Outflow Current at Low Voltage
On Threshold Voltage
Parameter
IN
): Vo + 3 to 43 V
Full-Mold, Separate Excitation Step-down Switching Mode Regulator ICs
Surface-Mount, Current Mode Control, Synchronous Rectifier Step-down Switching Mode
*: The minimum value of the input voltage range is 8 V or Vo + 3V, whichever is higher.
∆V
■Absolute Maximum Ratings
■Recommended Operating Conditions
∆Vo
Symbol
∆Vo
Input Voltage (VIN Pin)
Power Dissipation
Junction Temperature
Storage Temperature
Thermal Resistance (Junction to Lead <1 pin>)
Thermal Resistance (Junction to Ambient Air)
Input Voltage Range
Output Current Range
Output Voltage Range
Operating Junction Temperature Range
Operating Temperature Range
I
DMAX
DMIN
IN(OFF)
I
V
V
GEA
GCS
EN/SS
AEA
V
V
REF
fo1
fo2
I
C/EH
SSH
T
η
I
IN
ovp
ref
LOAD
s
LINE
j
/∆T
Parameter
Parameter
0.495
min.
0.57
151
3.1
3.0
0.6
80
Ratings
0.500
±0.05
0.60
3.33
typ.
200
160
800
800
150
4.5
1.3
90
50
50
90
1
8
5
Symbol
T
V
θ
P
θ
T
stg
j-c
j-a
IN
D
j
0.505
max.
0.63
6.0
6.0
2.0
40
Symbol
T
V
T
V
I
jop
o
op
IN
o
–40 to +150
–40 to +150
Ratings
1.35
46
40
74
mV/°C
MHz
µ A/V
nsec
Unit
kHz
mV
mV
mA
V/V
A/V
µ A
µ A
%
°C
%
V
A
V
V
V
°C/W
°C/W
Unit
°C
°C
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
W
V
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
EN
IN
IN
IN
IN
(T
8 or Vo+3 to 43
=12V, Io=1.0A
=12V, Io=1.0A, Ta=–40 to +85°C
=12V, Vo=5V, Io=1.0A
=12V, Vo=5V, Io=1A, Rfset=375kΩ
=12V, Vo=5V, Io=1A, Rfset=75kΩ
=8 to 43V, Vo to 5V, Io=1A
=12V, Vo=5V, Io=0.1 to 3.0A
=12V, Vo=5V
=12V, Vcomp=0V
=12V, V
=12V
=12V
=12V
=12V
/
–40 to +125
a
SS
–40 to +85
= 25°C and f
0.5 to 24
Ratings
0 to 3.0
=0V, V
When mounted on a 30 × 30 mm glass-epoxy board (with a 25 × 25 mm copper area)
When mounted on a 30 × 30 mm glass-epoxy board (with a 25 × 25 mm copper area)
EN
/ss=0V
IN
=12V
o
= 500kHz, unless otherwise specified)
Conditions
Conditions
Unit
°C
°C
V
A
V
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SI-8205NHD_11 Summary of contents
Page 1
... Input Voltage (VIN Pin Power Dissipation P 1.35 D Junction Temperature T –40 to +150 j Storage Temperature T –40 to +150 stg Thermal Resistance (Junction to Lead <1 pin>) θ 40 j-c Thermal Resistance (Junction to Ambient Air) θ 74 j-a ■Recommended Operating Conditions Parameter Symbol Input Voltage Range V IN Output Current Range I ...
Page 2
... Dimensions (HSOP8) Pin 1 Mark 1.27 ■Block Diagram REG REG_BIAS STANDBY REG VinOK Set PH Fere Off Ramp OSC_RAMP FB FSET④ REG_BIAS EN_SS ■Typical Connection Diagram VIN 3 VIN 2 EN/SS C1 SI-8205NHD 4 FSET GND GND Open Enlarged View of A 0.695 TYP 5.20 A 0.4 0.40 2.90 REG REG_DRV DRV_REG ...