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MIC2130 Fiches technique(PDF) 4 Page - Micrel Semiconductor

No de pièce MIC2130
Description  High Voltage Synchronous Buck Control IC with Low EMI Option
Download  20 Pages
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Fabricant  MICREL [Micrel Semiconductor]
Site Internet  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC2130 Fiches technique(HTML) 4 Page - Micrel Semiconductor

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Micrel, Inc.
MIC2130/1
April 2008
4
M9999-042108-C
Absolute Maximum Ratings
(1)
Supply Voltage (VIN).......................................................42V
Boot Strapped Voltage (VBST)..................................VIN + 5V
Logic Inputs...................................................................6.5V
EN Input .........................................................................42V
Ambient Storage Temperature (Ts)...........–65°C to +150°C
ESD Rating
(3)...............................................................1.5kV
Operating Ratings
(2)
Supply Voltage (VIN1, VIN2)................................ +8V to +40V
Output Voltage Range.................................. 0.7V to 0.85VIN
Junction Temperature (TJ) ..................–40°C ≤ TJ ≤ +125°C
Package Thermal Resistance
e-TSSOP (
θJA) ................................................97.5°C/W
e-TSSOP (
θJC) ................................................29.9°C/W
4x4 MLF-16 (
θJA) ............................................50.6°C/W
4x4 MLF-16 (
θJC) ............................................15.8°C/W
Electrical Characteristics
(4)
TJ = 25°C; VEN = VIN = 24V; Frequency = 150kHz; VOUT = 3.3V, unless otherwise specified.
Bold
values indicate –40°C≤ TJ ≤ +125°C.
Parameter
Condition
Min
Typ
Max
Units
VIN, VEN/UVLO, VDD Supply
Total Supply Current,
PWM Mode Supply Current
VFB = 0.7V; Comp = 3V
(Outputs switching but excluding external MOSFET gate
current.)
4
7.5
mA
Shutdown Current
VEN = 0V; VIN = 12V
180
300
µA
VEN/UVLO Turn-On Threshold
1.1
1.3
V
VEN/UVLO Turn-Off Threshold
0.7
1.0
V
VIN UVLO Hysteresis
100
mV
Internal Bias Voltages (AVDD,)
(IDD = 50mA)
4.6
5
5.3
V
Oscillator/PWM Section
PWM Frequency
MIC2130/1-1
130
150
170
kHz
PWM Frequency
MIC2130/1-4
360
400
440
kHz
Maximum Duty Cycle
MIC2130/1-1
92
%
Maximum Duty Cycle
MIC2130/1-4
80
%
Minimum On-Time
Note 5
50
ns
Regulation
Feedback Voltage Reference
(±2%) -40
°C to +125°C
686
700
714
mV
Feedback Bias Current
300
1000
nA
Output Voltage
Line Regulation
VIN = 8V – 40V
0.03
%/V
Output Voltage
Load Regulation
1A
≤ IOUT ≤ 10A
0.5
%
Error Amplifier (each channel)
DC Gain
70
dB
Output Impedance
2
MΩ
Transconductance
1.2
1.6
2.5
ms
Output Over voltage Protection
VFB Threshold
(Latches LSD High)
110
115
120
%Nom
Delay Blanking Time
1
µs
Soft Start/HCL
Internal Soft Start
Source Current
1
2.75
5
µA
HCL (MIC2131) Pin Voltage
High
ILIMIT set to 200% when HCL charges to2.4V
2.4
V


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