Motor de Búsqueda de Datasheet de Componentes Electrónicos
Selected language     Spanish  ▼

Delete All
ON OFF
ALLDATASHEET.ES

X  

Preview PDF Download HTML

MAX1858 Datasheet(PDF) 2 Page - Maxim Integrated Products

No. de Pieza. MAX1858
Descripción  Dual 180° Out-of-Phase PWM Step-Down Controller with Power Sequencing and POR
Descarga  21 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Fabricante  MAXIM [Maxim Integrated Products]
Página de inicio  http://www.maxim-ic.com
Logo 

MAX1858 Datasheet(HTML) 2 Page - Maxim Integrated Products

 
Zoom Inzoom in Zoom Outzoom out
 2 / 21 page
background image
Dual 180° Out-of-Phase PWM Step-Down
Controller with Power Sequencing and POR
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.
V+ to GND ..............................................................-0.3V to +25V
PGND to GND .......................................................-0.3V to +0.3V
VL to GND ..................-0.3V to the lower of +6V and (V+ + 0.3V)
BST1, BST2 to GND ...............................................-0.3V to +30V
LX1 to BST1..............................................................-6V to +0.3V
LX2 to BST2..............................................................-6V to +0.3V
DH1 to LX1 ..............................................-0.3V to (VBST1 + 0.3V)
DH2 to LX2 ..............................................-0.3V to (VBST2 + 0.3V)
DL1, DL2 to PGND ........................................-0.3V to (VL + 0.3V)
CKO, REF, OSC, ILIM1, ILIM2,
COMP1, COMP2 to GND ..........................-0.3V to (VL + 0.3V)
FB1, FB2, RST, SYNC, EN to GND...........................-0.3V to +6V
VL to GND Short Circuit..............................................Continuous
REF to GND Short Circuit ...........................................Continuous
Continuous Power Dissipation (TA = +70°C)
24-Pin QSOP (derate 9.4mW/°C above +70°C)...........762mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
ELECTRICAL CHARACTERISTICS
(V+ = 12V, EN = ILIM_ = VL, SYNC = GND, IVL = 0mA, PGND = GND, CREF = 0.22µF, CVL = 4.7µF (ceramic), ROSC = 60k
Ω,
compensation components for COMP_ are from Figure 1, TA = -40°C to +85°C (Note 1), unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
GENERAL
(Note 2)
4.75
23
V+ Operating Range
VL = V+ (Note 2)
4.75
5.5
V
V+ Operating Supply Current
VL unloaded, no MOSFETs connected
3.5
6
mA
V+ Standby Supply Current
EN = LX_ = FB_ = 0V
ROSC = 60k
0.3
0.6
mA
Thermal Shutdown
Rising temperature, typical hysteresis = 10
°C
160
°C
ILIM_ = VL
75
100
125
RILIM_ = 100k
32
50
62
Current-Limit Threshold
PGND - LX_
RILIM_ = 600k
225
300
375
mV
VL REGULATOR
Output Voltage
5.5V < V+ < 23V, 1mA < ILOAD < 50mA
4.75
5
5.25
V
VL Undervoltage Lockout
Trip Level
4.4
4.55
4.7
V
REFERENCE
Output Voltage
IREF = 0µA
1.98
2.00
2.02
V
Reference Load Regulation
0µA < IREF < 50µA
0
4
10
mV
SOFT-START
Digital Ramp Period
Internal 6-bit DAC for one converter to ramp from 0V to
full scale (Note 3)
1024
DC-DC
Clocks
Soft-Start Steps
64
Steps
FREQUENCY
0°C to +85°C
84
100
115
Low End of Range
ROSC = 60k
-40°C to +85°C
80
100
120
kHz
High End of Range
ROSC = 10k
540
600
660
kHz
DH_ Minimum Off-Time
ROSC = 10k
250
303
ns


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21 


Datasheet Download




Enlace URL




Privacy Policy
ALLDATASHEET.ES
Does ALLDATASHEET help your business so far?  [ DONATE ]  

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Favorito   |   Intercambio de Enlaces   |   Lista de Fabricantes
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn