MAX15001 Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
MAX15001 Datasheet PDF : 18 Pages
| |||
Current-Mode PWM Controllers with
Programmable Switching Frequency
ELECTRICAL CHARACTERISTICS (continued)
(VIN = +12V (for MAX15000, bring VIN up to 23.6V for startup), 10nF bypass capacitors at IN and VCC, R12 = 15kΩ (MAX1500_A), R12
= 7.5kΩ (MAX1500_B), R15 = 1kΩ, C6 = 100nF (see the Typical Application Circuit), NDRV = open, VUVLO/EN = +1.4V, VFB = +1.0V,
COMP = open, VCS = 0V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS
GATE DRIVER
Driver Output Impedance
Driver Peak Sink Current
RON(LOW) Measured at NDRV sinking 100mA
RON(HIGH) Measured at NDRV sourcing 20mA
2
4
Ω
4
10
1
A
Driver Peak Source Current
0.65
A
PWM COMPARATOR
Comparator Offset Voltage
CS Input Bias Current
Comparator Propagation Delay
CURRENT-LIMIT COMPARATOR
Current-Limit Trip Threshold
CS Input Bias Current
Propagation Delay From
Comparator Input to NDRV
VPWM
ICS
tPWM
VCS
ICS
tPDCS
VCOMP - VCS
VCS = 0V
Change in VCS = 0.1V
VCS = 0V
100mV overdrive
1.24
1.38
1.54
V
-4
+4
µA
60
ns
900
1000
1100
mV
-4
+4
µA
60
ns
IN CLAMP VOLTAGE
IN Clamp Voltage
ERROR AMPLIFIER
Voltage Gain
Unity-Gain Bandwidth
Phase Margin
FB Input Offset Voltage
VINC 2mA sink current (Note 2)
RLOAD = 100kΩ
RLOAD = 100kΩ, CLOAD = 200pF
RLOAD = 100kΩ, CLOAD = 200pF
24.1
26.1
29.0
V
80
dB
2
MHz
65
degrees
±1
mV
COMP High Voltage
COMP Low Voltage
Source Current
ICOMP = 0
ICOMP = 0
2.8
V
1.1
0.5
mA
Sink Current
0.5
mA
Reference Voltage
Reference Voltage Accuracy
VREF (Note 3)
1.230
V
-1.5
+1.5
%
FB Input Bias Current
-50
+50
nA
COMP Short-Circuit Current
8
mA
DIGITAL SOFT-START
Soft-Start Duration
tSS
fSW = 350kHz
1984
5.6
NDRV
cycles
ms
Reference Voltage Steps During
Soft-Start
31
steps
Reference Voltage Step
39.67
mV
_______________________________________________________________________________________ 3
Share Link: 