B340L 데이터 시트보기 (PDF) - Orister Corporation
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B340L Datasheet PDF : 11 Pages
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Page No. : 4/11
Electrical Characteristics (VIN=12V, TA=25°C, unless otherwise specified)
Symbol
VIN
VFB
RDS(ON)1
RDS(ON)2
ISw
ILIM
GCS
AVEA
GEA
FS
FOSC1
‐
DMAX
tON
‐
‐
‐
‐
ISD
IQ
TSD
Parameter
Input Voltage
Feedback Voltage
Upper Switch On Resistance
Lower Switch On Resistance
Upper Switch Leakage
Current Limit (NOTE 1)
Current Sense Transconductance Output
Current to Comp Pin Voltage
Error Amplifier Voltage Gain
Error Amplifier Transconductance
Oscillator Frequency
Short Circuit Frequency
Soft‐Start Pin Equivalent Output Resistance
Maximum Duty Cycle
Minimum On Time
EN Shutdown Threshold
Enable Pull Up Current
EN UVLO Threshold Rising
EN UVLO Threshold Hysteresis
Supply Current (Shutdown)
Supply Current (Quiescent)
Thermal Shutdown
Conditions
‐
4.75V ≤ VIN ≤ 21V
‐
‐
VEN = 0V, VSW = 0V
‐
‐
‐
‐
‐
VFB = 0V
‐
VFB = 1.0V
‐
ICC＞100uA
VEN = 0V
VIN Rising
‐
VIN ≤0.4V
VEN ≥3V
‐
Min.
4.75
0.898
‐
‐
‐
3.0
‐
‐
550
‐
‐
‐
‐
‐
0.7
‐
2.35
‐
‐
‐
‐
Typ.
‐
0.925
0.22
10
‐
‐
1.95
400
830
400
240
9
90
100
1.0
1.0
2.50
210
23
1.1
160
Max.
20
0.952
‐
‐
10
‐
‐
‐
1150
‐
‐
‐
‐
‐
1.3
‐
2.65
‐
36
1.3
‐
Unit
V
V
Ω
Ω
uA
A
A/V
V/V
uA/V
KHz
KHz
KΩ
%
ns
V
uA
V
mV
uA
mA
oC
Notes:
1. Slope compensation changes current limit above 40% duty cycle.
2. Stresses listed as the above "Absolute Maximum Ratings" may cause permanent damage to the device. These are for
stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended
periods may remain possibility to affect device reliability.
3. Devices are ESD sensitive. Handling precaution is recommended.
4. The device is not guaranteed to function outside its operating conditions.
5. θJA is measured in the natural convection at TA = 25°C on a high effective four layers thermal conductivity test board of
JEDEC 51‐7 thermal measurement standard.
DS‐RS6515‐08 JULY, 2010
www.Orister.com
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