APW38HC4XA View Datasheet(PDF) - Anpec Electronics
Part Name
Description
Manufacturer
APW38HC4XA Datasheet PDF : 11 Pages
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APW38HC42A/3A/4A/5A
Electrical Characteristics (Cont.)
VDD =15V, Note3 ; RT=9.09KΩ; CT=3.3nF; -40oC ≤ TA ≤ 85oC; unless noted
Symbol
Parameter
Test Conditions
APW38HC4XA
Min. Typ. Max.
ERROR AMPLIFIER
IFB Input Bias Current
VFB=5V
0.1
AVOL Open Loop Gain
BW Unity Gain Bandwidth
2≤ VO ≤ 4V
60 70
0.7 1.0
PSRR
Output Sink Current
Output Source Current
VOH Output Voltage (High)
VOL Output Voltage (Low)
CURRENT SENSE
A Gain
VTHM Maximum Threshold
PSRR
IISNS Input Bias Current
12≤ VDD ≤ 18V
60
VFB=2.7V, VCOMP=1.1V
2
7
VFB=2.3V, VCOMP=5V
-0.5 -1
VFB=2.3V, RL=15k to GND
5
5.4
VFB=2.7V, RL=15k to VREF
0.01 1.1
Notes 1,2
VCOMP=5V, Note 1
12≤ VDD ≤ 18V, Note 1
VISNS=5V
2.85 3.0 3.15
0.9 1.0 1.1
70
0.1
TD Delay to Output
OUTPUT
RDS(ON) High
Sourcing Current = 200mA
120 250
6.3
R DS(ON) Low
tR Rise Time
tF Fall Time
UNDERVOLTAGE LOCKOUT
VDD(ST) Start Threshold
VDD(MIN) Minimum Operating Voltage
PULSE WIDTH MODULATOR
DMAX Maximum Duty Cycle
DMIN Minimum Duty Cycle
Sinking Current = 200mA
TA=25°C, CL=1nF
TA=25°C, CL=1nF
APW38HC42/4A
APW38HC43/5A
APW38HC42/4A
APW38HC43/5A
13.5
7.8
8.0
7.0
APW38HC42/3A 94
APW38HC44/5A 46
4
15
30
10
20
14.5
8.4
9.0
7.6
15.5
9.0
10.0
8.2
96
50
0
TOTAL STANDBY CURRENT
IDD(ST) Start-Up Current
VDD=13V, APW38HC42/4A
VDD=7.5V, APW38HC43/5A
IDD(OP) Operating Supply Current VFB =VISNS= 0V, CL=1nF
Note 1 : Parameter measured at trip point of latch with VFB=0V.
30 150
25 150
2.0 4.0
Note 2 : Gain defined as :
Unit
µA
dB
MHz
dB
mA
mA
V
V
V/V
V
dB
µA
ns
Ω
ns
ns
V
V
%
%
µA
mA
∆VCOMP
A = ∆VTH(ISNS) , 0<VTH(ISNS)<0.8V
Note 3 : Adjust VDD above the start threshold before setting at 15V.
Note 4 : Output frequency equals oscillator frequency for the APW38HC42A and APW38HC43A. Output
frequency for APW38HC44A and APW38HC45A equals one half of the oscillator frequency.
Copyright ANPEC Electronics Corp.
4
Rev. A.7 - Jan., 2003
www.anpec.com.tw
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