APW38HC42AJC-TUL [ANPEC]
CMOS Current-Mode PWM Voltage Controller; CMOS电流模式PWM电压控制器
| 型号： | APW38HC42AJC-TUL |
| 厂家： | 
ANPEC ELECTRONICS COROPRATION |
| 描述： | CMOS Current-Mode PWM Voltage Controller |
| 文件： | 总11页 (文件大小：137K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
APW38HC42A/3A/4A/5A
CMOS Current-Mode PWM Voltage Controller
Features
General Description
•
•
•
Ultralow start-up current (25µA typical)
The APW38HC4XA family are fixed frequency, high
performance, current-mode PWM controller with 1.2
A drive current capability. Undervoltage lockout cir-
cuitry allows the APW38HC42A and APW38HC44A
versions to start up at 14.5V and operate down to
9V, and the APW38HC43A and APW38HC45A ver-
sions start at 8.4V with operateion down to 7.6V. All
versions operate up to 24V. The ultra low start-up
current 25µA (typical), and operating current 2mA
(typical) have been designed to improve the converter
efficiency. High output driving capability up to 1.2A
ensures the fast switching to minimize the switching
losses. The APW38HC4XA features a trimmed and
temperature compensated oscillator discharge cur-
rent and bandgap reference. APW38HC4XA is avail-
able in both 8-pin plastic DIP and SOP packages.
Low operating current (2mA typical)
Fast output rise/fall times :
−15ns rise/10ns fall
•
•
•
•
•
•
•
•
High output drive (1.2A peak current)
CMOS outputs with rail-to-rail swing
Current-mode operation up to 1MHz
Trimmed 5V bandgap reference
Pin-to-pin compatible with MIC38HC4X
Trimmed oscillator discharge current
UVLO with hysteresis
Low cross-conduction currents
Pin Description
Applications
•
Current-mode , Off-line , Switched-mode Power
Supplies
1
2
8
7
COMP
FB
VREF
VDD
OUT
GND
•
•
Current-mode , DC-to-DC converters
6
5
3
4
ISNS
Various converters ( step-down, step-up, flyback
, forward, and synchronous FET)
RT/CT
Ordering and Marking Information
Package Code
APW38HC4XA
J : DIP - 8
K : SOP-8
I : -40 to 85 C
TR : Tape & Reel
Blank : Original Device
Temp. Range
Lead Free Code
Handling Code
°
°
C : 0 to 70 C
Handling Code
TU : Tube
Temp. Range
Package Code
Lead Free Code
L : Lead Free Device
X - 2/3/4/5
XXXXX - Date Code
APW38HC4XA
APW384XA J :
APW384XA K :
XXXXX
APW38HC4XA
XXXXX
X - 2/3/4/5
XXXXX - Date Code
customers to obtain the latest version of relevant information to verify before placing orders.
Copyright ANPEC Electronics Corp.
Rev. A.7 - Jan., 2003
1
www.anpec.com.tw
APW38HC42A/3A/4A/5A
Selection Guide
Startup 8.4V
Minimum Operating 7.6V
Startup 14.5V
Minimum Operating 9V
APW38HC42A
Duty Cycle
0~96%
0~50%
APW38HC43A
APW38HC45A
APW38HC44A
Block Diagram
VDD
5V
VREF
UVLO
Reference
RT/CT
Oscillator
OUT
T
Q
Q
FB
-
2R
E. A.
-
S
2.5V
+
R
R
+
COMP
GND
ISNS
Functional Pin Description
Pin Name
Pin Number
Function Description
1
COMP
Compensation: Connect external compensation network to
modify the error amplifier output.
2
3
4
FB
Feedback (Input): Error amplifier input. Feedback is 2.5V at
desired output voltage.
Current Sense (Input): Current sense comparator input.
Connect to current sensing resistor or current transformer.
Timing Resistor/Timing Capacitor: Connect external RC
network to select switching frequency.
ISNS
RT/CT
5
6
7
GND
OUT
VDD
Ground: Combined analog and power ground.
Power Output: Totem-pole output.
Analog Supply (Input): Controller circuitry supply input. Return
to analog ground (AGND).
8
VREF
5V Reference (Output): Connect external RC network.
Copyright ANPEC Electronics Corp.
Rev. A.7 - Jan., 2003
2
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APW38HC42A/3A/4A/5A
Absolute Maximum Ratings
Symbol
VDD
Parameter
Rating
24
Unit
V
Supply Voltage
VISNS
VFB
Current Sense Voltage
Feedback Voltage
-0.3 to 5.5
-0.3 to 5.5
300
V
V
TJ
Junction Temperature Range
Storage Temperature
Soldering Temperature
Minimum ESD Rating
C
C
C
°
°
°
TSTG
TSDR
VESD
-65 to 150
300,10 Seconds
±3
kV
Thermal Characteristics
Symbol
Parameter
Value
Unit
°C/W
Thermal Resistance in Free Air
θJA
DIP
SOP
125
175
Electrical Characteristics
VDD =15V, Note3 ; RT=9.09KΩ; CT=3.3nF; -40oC ≤ TA ≤ 85oC; unless noted
APW38HC4XA
Symbol
Parameter
Test Conditions
Unit
Min.
Typ. Max.
REFERENCE VOLTAGE
VREF Reference Voltage
4.90
5.00
1
5.10
20
V
TA=25 C, IO(Output Current)=1mA
°
REGline Line Regulation
REGload Load Regulation
Temp. Stability
mV
mV
12V VDD 18V, IO=5 A
≤
≤
µ
6
25
1mA IO 20mA
≤
≤
0.2
mV/ C
°
Total Output Variation Line, Load, Temp.
Output Noise Voltage
4.82
5.18
V
10Hz f 10kHz, TA = 25oC
V
50
5
≤
≤
µ
Long Term Stability
Output Short Circuit
TA = 125oC, 1000 hrs
25
mV
mA
ISC
-25
49
-55
-120
OSCILLATOR
FOSC Initial Accuracy
52
0.2
0.03
8.4
8.4
1.6
55
kHz
%
TA=25 C, Note 4
°
Voltage Stability
Temp. Stability
1.0
12V VDD 18V
≤
≤
TMIN TA TMAX
%/ C
≤
≤
°
7.7
7.2
9.0
9.5
TA=25 C, VRT/CT=2V
°
Clock Ramp Reset
IDISCHG
mA
Current
TA=TMIN to TMAX
VOSC Amplitude
ERROR AMPLIFIER
Input Voltage
VRT/CT peak to peak
VP-P
VCOMP=2.5V
2.42
2.50
2.58
V
Copyright ANPEC Electronics Corp.
Rev. A.7 - Jan., 2003
3
www.anpec.com.tw
APW38HC42A/3A/4A/5A
Electrical Characteristics (Cont.)
VDD =15V, Note3 ; RT=9.09KΩ; CT=3.3nF; -40oC ≤ TA ≤ 85oC; unless noted
APW38HC4XA
Symbol
Parameter
Test Conditions
Unit
Min.
Typ.
Max.
ERROR AMPLIFIER
IFB
Input Bias Current
VFB=5V
2 VO 4V
0.1
A
µ
AVOL Open Loop Gain
BW Unity Gain Bandwidth
PSRR
60
0.7
60
2
70
dB
MHz
dB
mA
mA
V
≤
≤
1.0
12 VDD 18V
≤
≤
Output Sink Current
Output Source Current
VOH Output Voltage (High)
VFB=2.7V, VCOMP=1.1V
VFB=2.3V, VCOMP=5V
7
-0.5
5
-1
VFB=2.3V, RL=15k to GND
VFB=2.7V, RL=15k to VREF
5.4
0.01
VOL
CURRENT SENSE
Gain
Output Voltage (Low)
1.1
V
A
Notes 1,2
2.85
0.9
3.0
1.0
70
3.15
1.1
V/V
V
VTHM Maximum Threshold
PSRR
VCOMP=5V, Note 1
dB
12 VDD 18V, Note 1
≤
≤
IISNS Input Bias Current
VISNS=5V
0.1
A
µ
TD
Delay to Output
120
6.3
250
ns
OUTPUT
RDS(ON) High
Sourcing Current = 200mA
Sinking Current = 200mA
Ω
R DS(ON) Low
Rise Time
Fall Time
4
tR
tF
15
10
30
20
ns
ns
TA=25 C, CL=1nF
°
TA=25 C, CL=1nF
°
UNDERVOLTAGE LOCKOUT
APW38HC42/4A 13.5
APW38HC43/5A 7.8
APW38HC42/4A 8.0
APW38HC43/5A 7.0
14.5
8.4
9.0
15.5
9.0
10.0
8.2
VDD(ST) Start Threshold
V
V
VDD(MIN) Minimum Operating Voltage
PULSE WIDTH MODULATOR
DMAX Maximum Duty Cycle
7.6
APW38HC42/3A 94
APW38HC44/5A 46
96
50
%
%
Minimum Duty Cycle
0
DMIN
TOTAL STANDBY CURRENT
VDD=13V, APW38HC42/4A
30
25
150
150
4.0
IDD(ST) Start-Up Current
A
µ
VDD=7.5V, APW38HC43/5A
VFB =VISNS= 0V, CL=1nF
IDD(OP) Operating Supply Current
2.0
mA
Note 1 : Parameter measured at trip point of latch with VFB=0V.
Note 2 : Gain defined as :
∆VCOMP
A =
, 0<VTH(ISNS)<0.8V
∆VTH(ISNS)
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.
Rev. A.7 - Jan., 2003
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APW38HC42A/3A/4A/5A
Typical Characteristics
Output Dead Time vs. Oscillator Frequency
Oscillator Frequency Configuration
100
100
10nF
4.7nF
1.8nF
10
10
200pF
470pF
1nF
1
1
10
100
1000
10
100
1000
Oscillator Frequency (kHz)
Oscillator Frequency (kHz)
Current Sense Amplifier Threshold vs.
Oscillator Discharge Current vs.
Temperature
Error Amplifier Output
9.0
8.8
8.6
8.4
8.2
8.0
7.8
7.6
7.4
7.2
7.0
1.2
-50oC
1.0
25oC
125oC
0.8
0.6
0.4
0.2
0.0
VDD = 15V
VRTCT = 2V
-60 -30
0
30
60
90 120 150
0
1
2
3
4
5
6
7
Error Amplifier Output (V)
Temperature (°C)
Copyright ANPEC Electronics Corp.
Rev. A.7 - Jan., 2003
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APW38HC42A/3A/4A/5A
Typical Characteristics (Cont.)
Short-Circuit Current of VREF vs.
Output Waveform
Temperature
30
25
20
15
10
5
100
90
80
70
60
50
40
30
20
10
0
0
-5
-10
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
-60 -30
0
30
60
90 120 150
Temperature (°C)
Time (µs)
Open Loop test Circuit
REF
RT
A
Vcc
2N2222
4.7KΩ
COMP
REF
Vcc
0.1µ F
1KΩ
Error Amp
Adjust
100KΩ
APW38HC42A/3A/4A/5A
VFB
0.1µ F
1KΩ ,1W
5KΩ
ISENSE
Adjust
Output
GND
ISENSE
RT/CT
OUTPUT
GND
4.7KΩ
CT
Copyright ANPEC Electronics Corp.
Rev. A.7 - Jan., 2003
6
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APW38HC42A/3A/4A/5A
Packaging Information
PDIP-8 pin ( Reference JEDEC Registration MS-001)
D
E1
E
1
1
A2
A
E3
A1
L
e2
e 1
e 3
Millimeters
Dim
Inches
Min.
Max.
Min.
Max.
5.33
0.210
A
A1
A2
L
0.38
2.92
9.02
0.015
0.115
0.355
3.68
0.145
0.400
10.16
2.54BSC
0.100BSC
e1
e2
e3
0.36
1.14
0.56
1.78
0.014
0.045
0.022
0.070
7.62 BSC
8.26
0.300 BSC
0.325
E
6.10
2.92
7.11
10.92
3.81
0.240
0.115
0.280
0.430
0.150
E1
E3
L
1
0
°
15
0
°
15
°
°
Copyright ANPEC Electronics Corp.
Rev. A.7 - Jan., 2003
7
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APW38HC42A/3A/4A/5A
Package Information
SOP- 8 pin ( Reference JEDEC Registration MS-012)
°
0.015X45
E
H
e
e1
e2
D
A1
A
1
L
0.004max.
Millimeters
Inches
Dim
Min.
1.35
0.10
4.80
3.80
5.80
0.40
0.33
Max.
1.75
0.25
5.00
4.00
6.20
1.27
0.51
Min.
Max.
0.069
0.010
0.197
0.157
0.244
0.050
0.020
A
A1
D
0.053
0.004
0.189
0.150
0.228
0.016
0.013
E
H
L
e1
e2
1
1.27BSC
0.50BSC
8
8
°
°
Copyright ANPEC Electronics Corp.
Rev. A.7 - Jan., 2003
8
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APW38HC42A/3A/4A/5A
Physical Specifications
Terminal Material
Lead Solderability
Solder-Plated Copper (Solder Material : 90/10 or 63/37 SnPb), 100%Sn
Meets EIA Specification RSI86-91, ANSI/J-STD-002 Category 3.
Reflow Condition (IR/Convection or VPR Reflow)
tp
TP
Critical Zone
TL to TP
Ramp-up
TL
tL
Tsmax
Tsmin
Ramp-down
ts
Preheat
25
°
t 25 C to Peak
Tim e
Classificatin Reflow Profiles
Sn-Pb Eutectic Assembly
Large Body Small Body
Pb-Free Assembly
Profile Feature
Large Body
Small Body
Average ramp-up rate
(TL to TP)
3°C/second max.
3°C/second max.
Preheat
- Temperature Min (Tsmin)
- Temperature Mix (Tsmax)
- Time (min to max)(ts)
100°C
150°C
60-120 seconds
150°C
200°C
60-180 seconds
Tsmax to TL
3°C/second max
- Ramp-up Rate
Tsmax to TL
- Temperature(TL)
- Time (tL)
183°C
60-150 seconds
217°C
60-150 seconds
Peak Temperature(Tp)
225 +0/-5°C
240 +0/-5°C
245 +0/-5°C
250 +0/-5°C
Time within 5°C of actual Peak
Temperature(tp)
10-30 seconds
10-30 seconds
10-30 seconds 20-40 seconds
Ramp-down Rate
Time 25°C to Peak Temperature
6°C/second max.
6 minutes max.
6°C/second max.
8 minutes max.
Note: All temperatures refer to topside of the package. Measured on the body surface.
Copyright ANPEC Electronics Corp.
Rev. A.7 - Jan., 2003
9
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APW38HC42A/3A/4A/5A
Reliability test program
Test item
SOLDERABILITY
HOLT
PCT
TST
Method
MIL-STD-883D-2003
MIL-STD-883D-1005.7
JESD-22-B, A102
MIL-STD-883D-1011.9
MIL-STD-883D-3015.7
JESD 78
Description
245 C , 5 SEC
°
1000 Hrs Bias @ 125 C
°
168 Hrs, 100 % RH , 121 C
°
-65 C ~ 150 C, 200 Cycles
VHBM > 2KV, VMM > 200V
10ms , Itr > 100mA
°
°
ESD
Latch-Up
Carrier Tape & Reel Dimensions
t
D
P
Po
E
P1
Bo
F
W
Ko
Ao
D1
T2
J
C
A
B
T1
A
B
C
J
T1
T2
0.2
W
P
E
Application
SOP-8
330 1
62 1.5 12.75 +
2 + 0.5 12.4 +0.2
2
12 + 0.3
- 0.1
8 0.1 1.75 0.1
± ±
±
±
±
0.1 5
F
D
D1
Po
P1
Ao
Bo
Ko
t
Application
SOP-8
5.5 0.1 1.55 0.1 1.5+ 0.25 4.0 0.1 2.0 0.1 6.4 0.1 5.2 0.1 2.1 0.1 0.3 0.013
±
±
±
±
±
±
±
±
(mm)
Copyright ANPEC Electronics Corp.
Rev. A.7 - Jan., 2003
10
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APW38HC42A/3A/4A/5A
Cover Tape Dimensions
Application
SOP- 8
Carrier Width
Cover Tape Width
Devices Per Reel
12
9.3
2500
Customer Service
Anpec Electronics Corp.
Head Office :
5F, No. 2 Li-Hsin Road, SBIP,
Hsin-Chu, Taiwan, R.O.C.
Tel : 886-3-5642000
Fax : 886-3-5642050
Taipei Branch :
7F, No. 137, Lane 235, Pac Chiao Rd.,
Hsin Tien City, Taipei Hsien, Taiwan, R. O. C.
Tel : 886-2-89191368
Fax : 886-2-89191369
Copyright ANPEC Electronics Corp.
Rev. A.7 - Jan., 2003
11
www.anpec.com.tw
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