SC486 Ver la hoja de datos (PDF) - Semtech Corporation
Número de pieza
componentes Descripción
Fabricante
SC486 Datasheet PDF : 26 Pages
| |||
SC486
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Test Conditions: VBAT = 15V, VCCA = VDDP = VTTEN = EN/PSV = 5V, VDDQ = VTTIN = 1.8V, RTON = 1MΩ
Parameter
Conditions
25°C
-40°C to 125°C Units
Min Typ Max Min Max
VDDQ Fault Protection (Cont.)
Under Voltage Blank Time
Output Over Voltage Fault
Over Voltage Fault Delay
PGD Low Output Voltage
PGD Leakage Current
PGD UV Threshold
PGD Fault Delay
VCCA Under Voltage
VTT Fault Protection
From EN high
440
With respect to internal reference
+16
FB forced above OV Vth
5
Sink 1mA
FB in regulation, PGD = 5V
With respect to internal reference
-10
FB forced outside PGD window
5
Falling edge, hysteresis 100mV
4.0
clks(3)
+12 +20
%
µs
0.4
V
1
µA
-12
-8
%
µs
3.7
4.3
V
Output Under Voltage Fault
VTT w/rt REF
-12
-16
-8
%
Output Over Voltage Fault
Fault Shutdown Delay
VTT w/rt REF
VTT outside UV/OV window
+12
+8
+16
%
50
µs
Thermal Shutdown (4)(5)
Inputs/Outputs
160
150 170
°C
Logic Input Low Voltage
Logic Input High Voltage
Logic Input High Voltage
EN/PSV Input Resistance
Soft Start
EN & PSV low
VTTEN low
EN high, PSV low
VTTEN high
EN high, PSV high
Sourcing
Sinking
1.2
V
0.6
2.0
V
2.4
3.1
V
1.5
MΩ
1.0
VDDQ Soft Start Ramp Time
EN/PSV high to PGD high
440
VTT Soft Start Ramp Rate (6)
6
Gate Drives
clks(3)
mV/µs
Shoot-thru Protection Delay (4)(7)
DH or DL rising
30
ns
DL Pull-Down Resistance
DL Sink Current
2006 Semtech Corp.
DL low
VDL = 2.5V
4
0.8
1.6
Ω
3.1
A
www.semtech.com
Share Link: 