Rainbow-electronics MAX1715 Manual do Utilizador Página 2
- Página / 25
- Índice
- MARCADORES
Avaliado. / 5. Com base em avaliações de clientes
MAX1715
Ultra-High Efficiency, Dual Step-Down
Controller for Notebook Computers
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 AGND..............................................................-0.3 to +30V
V
DD
, V
CC
to AGND..................................................-0.3V to +6V
PGND to AGND or V
CC
to V
DD
...........................................±0.3V
PGOOD, OUT_ to AGND..........................................-0.3V to +6V
ILIM_, FB_, REF, SKIP, TON,
ON_ to AGND...........................................-0.3V to (V
DD
+ 0.3V)
DL_ to PGND..............................................-0.3V to (V
DD
+ 0.3V)
BST_ to AGND........................................................-0.3V to +36V
DH1 to LX1 ...............................................-0.3V to (BST1 + 0.3V)
DH2 to LX2 ...............................................-0.3V to (BST2 + 0.3V)
LX1 to BST1..............................................................-6V to +0.3V
LX2 to BST2..............................................................-6V to +0.3V
REF Short Circuit to AGND.........................................Continuous
Continuous Power Dissipation (T
A
= +70°C)
28-Pin QSOP (derate 8.0mW/°C above +70°C).....640mW/°C
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
(Circuit of Figure 1, 4A components from Table 1, V
CC =
V
DD
= +5V, SKIP = AGND, V+ = 15V, T
A
= 0°C to +85°C, unless otherwise
noted.) (Note 1)
I
LOAD
= 0 to 4A, each output %0.4
FB2 = GND
Battery voltage, V+
Input Voltage Range
V+ = 24V, OUT2 = 2V
Load Regulation Error
V
CC
= 4.5V to 5.5V, V+ = 4.5V to 28V
V+ = 24V, OUT1 = 2V
Adjustable mode, each output
Output 2 Error Comparator
Threshold (DC Output Voltage
Accuracy) (Note 2)
TON = GND
FB_ Input Bias Current
TON = GND
TON = open
V
OUT
_ = AGND
210 247 280
CONDITIONS
V
TON = REF
142 173 205
ms
TON = V
DD
OUT_ Input Resistance
µA
Soft-Start Ramp Time
ΩFB_ = AGND
Rising edge of ON_ to full current limit
2.475 2.5 2.525
V+ = 2V to 28V,
SKIP = V
CC
, T
A
= +25°C
I
LOAD
= 0 to 4A
V+ = 2V to 28V,
SKIP = V
CC
, T
A
= +25°C
I
LOAD
= 0 to 4A
ns
154 182 215
V
On-Time (PWM2)
ns
112 136 160
0.99 1.00 1.01
On-Time (PWM1)
V
1.7
0.99 1.00 1.01
300 353 407
1.782 1.8 1.818
-0.1 0.1
TON = open
292 336 380
TON = REF
75k
3.267 3.3 3.333
FB1 = V
CC
FB1 = AGND
FB1 = OUT1
228
FB2 = OUT2
V
15.5
Output Voltage Range
%0.2
198 234 270
Line Regulation Error
TON = V
DD
420 484 550
UNITSMIN TYP MAXPARAMETER
Output 1 Error Comparator
Threshold (DC Output Voltage
Accuracy) (Note 2)
4.5 5.5
V
DD,
V
CC
Output 1 Error Comparator
Threshold (DC Output Voltage
Accuracy) (Note 2)
V+ = 2V to 28V,
SKIP = V
CC
, T
A
= 0°C to +85°C
I
LOAD
= 0 to 4A
V
0.985 1.00 1.105
1.773 1.8 1.827
3.250 3.3 3.350
FB1 = V
CC
FB1 = AGND
FB1 = OUT1
FB2 = GND
Output 2 Error Comparator
Threshold (DC Output Voltage
Accuracy) (Note 2)
2.463 2.5 2.538
V+ = 2V to 28V,
SKIP = V
CC
, T
A
= 0°C to +85°C
I
LOAD
= 0 to 4A
V
0.985 1.00 1.105
FB2 = OUT2
- General Description 1
- Applications 1
- Features 1
- Ordering Information 1
- Minimal Operating Circuit 1
- ABSOLUTE MAXIMUM RATINGS 2
- ELECTRICAL CHARACTERISTICS 2
- MAX1715-01 5
- MAX1715-02 5
- MAX1715-03 5
- EFFICIENCY (%) 6
- Pin Description 8
- Pin Description (continued) 9
- +5V Bias Supply (V 10
- Table 2. Component Suppliers 11
- On-Time One-Shot (TON) 12
- ON IN DROP 14
- OUT DROP 14
- Forced-PWM Mode ( 15
- SSKKIIPP 15
- Current-Limit Circuit (ILIM) 15
- MOSFET Gate Drivers (DH, DL) 16
- POR, UVLO, and Soft-Start 16
- Power-Good Output (PGOOD) 16
- No-Fault Test Mode 17
- Inductor Selection 18
- Determining the Current Limit 18
- Output Capacitor Selection 18
- Input Capacitor Selection 19
- Power MOSFET Selection 19
- MOSFET Power Dissipation 19
- Dropout Performance 20
- Fixed Output Voltages 21
- Setting V 21
- CPU Buck Regulator 21
- PC Board Layout Guidelines 22
- Layout Procedure 23
- Pin Configuration 24
- Package Information 25
Manuais e produtos relacionados com Sensores Rainbow-electronics MAX1715
(16 páginas)© 2020, manymanuals-pt.com. Todos os direitos reservados. | 0.032 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comentários a estes Manuais