APW7108NI-TRG Просмотр технического описания (PDF) - Anpec Electronics
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APW7108NI-TRG Datasheet PDF : 28 Pages
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APW7108
Electrical Characteristics (Cont.)
Refer to the typical application circuits. These specifications apply over VCC=5V, VIN=5~24V and TA= -40 ~ 85 °C, unless otherwise
specified. Typical values are at TA=25°C.
Symbol
Parameter
Test Conditions
APW7108
Unit
Min. Typ. Max.
REFERENCE VOLTAGE
VREF
Reference Voltage
Accuracy
Line Regulation
Load Regulation
PWM CONVERTERS
VCC = 4.5V to 5.5V, VIN = 5~24V
0A < IOUT < 5A; 5V < VIN < 24V
-
0.9
-
-1.0
-
+1.0
%
-0.1
-
+0.1
%
-1.0
-
+1.0
%
IVSEN
VSEN Pin Bias Current
Minimum off-time of UGATE
-100
-
+100
nA
-
550
-
ns
VOUT Pin Input Impedance
VUV
VSEN Under-Voltage Threshold
VOV
VSEN Over-Voltage Threshold
SWITCHING FREQUENCY
VOUT = 5V
~ 2µs noise filter, VSEN Falling
~ 2µs noise filter, VSEN Rising
-
134
-
kΩ
65
70
75
%
110
115
120
%
FSW
Switching Frequency in PWM
mode
MOSFET GATE DRIVERS
DC output current
PWM1
PWM2
294
345
396
kHz
217
255
293
UGATE Source Resistance
UGATE Sink Resistance
LGATE Source Resistance
LGATE Sink Resistance
TD
Dead-Time
PGOOD AND CONTROL FUNCTIONS
VBOOT = 5V, IUGATE = 0.1A
VBOOT = 5V, IUGATE = 0.1A
VCC = 5V, ILGATE= 0.1A
VCC = 5V, ILGATE= 0.1A
-
1
2
Ω
-
0.9
1.8
Ω
-
1
2
Ω
-
0.6
1.2
Ω
-
25
-
ns
PGOOD Threshold
POK is high：~ 3µs noise filter, VSEN is 87
92
95
%
from low to target value
POK is high：~ 3µs noise filter, VSEN is
from high to target value
107
112
117
%
POK Hysteresys
-
3
-
%
VPG1, 2
ISEN
PG1, PG2 Leakage Current
VPG1,2 = 5.5V
PG1, PG2 Voltage Low
IPG1,2 = -4mA
ISEN Sourcing Current
By Design
Continuous-Conduction-Mode
(CCM) Enforced (PFM Operation VOUTx pulled low
Inhibited)
-
-
1
µA
-
0.5
1
V
-
-
260
µA
-
-
0.1
V
Automatic CCM/PFM Operation
Enabled
SOFT-START, SOFT-STOP, AND ENABLE
VOUTx connected to the output
0.9
-
-
V
ISTART
ISTOP
VST
Soft-Start Current Source
Soft-Stop Current Sink
SOFTx Pull-Low Impedance
Soft-Start Complete Threshold
Soft-Start Clamp Voltage
EN Voltage Low (OFF)
Sourcing current
Sinking current
Voltage Threshold of SOFT Pin
-
4.5
-
µA
-
2.2
-
µA
-
2
-
kΩ
-
1.5
-
V
-
2.4
-
V
-
-
0.8
V
EN Voltage High (ON)
2.0
-
-
V
Copyright © ANPEC Electronics Corp.
4
Rev. A.4 - Jan., 2009
www.anpec.com.tw
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