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MAX8792 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Single Quick-PWM Step-Down Controller - Maxim Integrated Products

भाग संख्या MAX8792
समारोह Single Quick-PWM Step-Down Controller
मैन्युफैक्चरर्स Maxim Integrated Products 
लोगो Maxim Integrated Products लोगो 
पूर्व दर्शन
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<?=MAX8792?> डेटा पत्रक पीडीएफ

MAX8792 pdf
Single Quick-PWM Step-Down
Controller with Dynamic REFIN
ABSOLUTE MAXIMUM RATINGS
TON to GND ...........................................................-0.3V to +28V
VDD to GND ..............................................................-0.3V to +6V
VCC to GND ................................................-0.3V to (VDD + 0.3V)
EN, SKIP, PGOOD to GND.......................................-0.3V to +6V
REF, REFIN to GND ....................................-0.3V to (VCC + 0.3V)
ILIM, FB to GND .........................................-0.3V to (VCC + 0.3V)
DL to GND ..................................................-0.3V to (VDD + 0.3V)
BST to GND .................................................(VDD - 0.3V) to +34V
BST to LX..................................................................-0.3V to +6V
BST to VDD .............................................................-0.3V to +28V
DH to LX ....................................................-0.3V to (VBST + 0.3V)
REF Short Circuit to GND ...........................................Continuous
Continuous Power Dissipation (TA = +70°C)
14-Pin 3mm x 3mm TDFN
(derated 24.4mW/°C above +70°C)....................1951mW
Operating Temperature Range (extended) .........-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature.........................................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+240°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and 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 affect device reliability.
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, VIN = 12V, VDD = VCC = VEN = 5V, REFIN = ILIM = REF, SKIP = GND. TA = 0°C to +85°C, unless otherwise spec-
ified. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
PWM CONTROLLER
Input Voltage Range
Quiescent Supply Current (VDD)
Shutdown Supply Current (VDD)
VDD-to-VCC Resistance
On-Time
Minimum Off-Time
TON Shutdown Supply Current
REFIN Voltage Range
FB Voltage Range
FB Voltage Accuracy
FB Input Bias Current
Load-Regulation Error
Line-Regulation Error
Soft-Start/-Stop Slew Rate
Dynamic REFIN Slew Rate
REFERENCE
VIN
IDD + ICC
ISHDN
RCC
tON
tOFF(MIN)
VREFIN
VFB
VFB
IFB
tSS
tDYN
FB forced above REFIN
EN = GND, TA = +25°C
VIN = 12V,
VFB = 1.0V
(Note 3)
RTON = 97.5kΩ (600kHz)
RTON = 200kΩ (300kHz)
RTON = 302.5kΩ (200kHz)
(Note 3)
EN = GND, VTON = 26V,
VCC = 0V or 5V, TA = +25°C
(Note 2)
(Note 2)
VREFIN = 0.5V,
measured at FB,
VIN = 2V to 26V,
SKIP = VDD
TA = +25°C
TA = 0°C to +85°C
VREFIN = 1.0V
TA = +25°C
TA = 0°C to +85°C
VREFIN = 2.0V TA = 0°C to +85°C
VFB = 0.5V to 2.0V, TA = +25°C
ILOAD = 0 to 3A, SKIP = VDD
VCC = 4.5V to 5.5V, VIN = 4.5V to 26V
Rising/falling edge on EN
Rising edge on REFIN
2
118
250
354
0
0
0.495
0.493
0.995
0.993
1.990
-0.1
0.7
0.1
20
139
278
417
200
0.01
0.5
1.0
2.0
0.1
0.25
1
8
26
1.2
2
160
306
480
300
1
VREF
VREF
0.505
V
mA
μA
Ω
ns
ns
μA
V
V
0.507
1.005
1.007
2.010
+0.1
V
μA
%
%
mV/μs
mV/μs
Reference Voltage
VREF
VCC = 4.5V
to 5.5V
No load
IREF = -10μA to +50μA
1.990 2.00 2.010
1.98 2.02
V
2 _______________________________________________________________________________________

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डाउनलोड[ MAX8792 Datasheet.PDF ]


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