SC4612 Ver la hoja de datos (PDF) - Semtech Corporation
Número de pieza
componentes Descripción
Fabricante
SC4612 Datasheet PDF : 24 Pages
| |||
POWER MANAGEMENT
Electrical Characteristics
Unless otherwise specified:
VIN = VDD = 12V, FOSC = 600kHz, TA = TJ = -40°C to 125°C.
Parameter
Test Conditions
Bias Supply
VDD
Quiescent Current
VDD Undervoltage Lockout
VDD = 28V, No load, SS/EN = 0
Start Threshold
UVLO Hysteresis
Drive Regulator
DRV
Load Regulation
Oscillator
10V ≤ VDD ≤ 28V, IOUT ≤ 1mA
1mA ≤ IO ≤ 100mA
Operation Frequency Range
Initial Accuracy (1)
Maximum Duty Cycle(2)
COSC = 160pF (Ref only)
Ramp Peak to Valley (1)
Oscillator Charge Current
Current Limit (Low Side Rdson)
Current Limit Threshold Voltage
Error Amplifier
VOUT = 500mV, 3.3V, 5V
Feedback Voltage
Input Bias Current
TJ = 0 to +70°C
TJ = -40 to +85°C
TJ = -40 to +125°C
FB = 0.5V
Open Loop Gain (1)
Unity Gain Bandwidth (1)
Output Sink Current
Open Loop, FB = 0V
Output Source Current
Open Loop, FB = 0.6V
Slew Rate (1)
SC4612
Min
Typ Max
Units
28
V
5
7
mA
4.20
4.50 4.75
V
400
mV
7.3
7.8
8.3
V
100
mV
100
1200
kHz
540
600
660
kHz
85
%
850
mV
90
110
µA
100
mV
0.495
0.492
0.488
7
0.500
0.500
0.500
60
10
900
1100
1
0.505
0.508
0.512
200
V
V
V
nA
dB
MHz
µA
µA
V/µs
2007 Semtech Corp.
3
www.semtech.com
Share Link: 