Anpec APW38HC45AJI-TU Cmos current-mode pwm voltage controller Datasheet

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 circuitry allows the APW38HC42A and APW38HC44A
versions to start up at 14.5V and operate down to
9V, and the APW38HC43A and APW38HC45A versions 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 current and bandgap reference. APW38HC4XA is available 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
•
•
COMP
1
8
VREF
FB
2
7
VDD
ISNS
3
6
OUT
RT/CT
4
5
GND
Current-mode , DC-to-DC converters
Various converters ( step-down, step-up, flyback
, forward, and synchronous FET)
Ordering and Marking Information
Package Code
J : DIP - 8
K : SOP-8
Temp. Range
C : 0 to 70 °C
I : -40 to 85 ° C
Handling Code
TU : Tube
TR : Tape & Reel
Lead Free Code
L : Lead Free Device
Blank : Original Device
APW 38HC4XA
Lead Free Code
Handling Code
Temp. Range
Package Code
APW 384XA J :
X - 2/3/4/5
APW 38HC4XA
XXXXX
XXXXX - Date Code
APW 38HC4XA
X - 2/3/4/5
XXXXX - Date Code
APW 384XA K :
XXXXX
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
Copyright  ANPEC Electronics Corp.
Rev. A.7 - Jan., 2003
1
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APW38HC42A/3A/4A/5A
Selection Guide
Startup 8.4V
Minimum Operating 7.6V
APW38HC43A
APW38HC45A
Duty Cycle
0~96%
0~50%
Startup 14.5V
Minimum Operating 9V
APW38HC42A
APW38HC44A
Block Diagram
VDD
VREF
5V
Reference
RT/CT
Oscillator
UVLO
OUT
T
-
FB
2R
E. A.
2.5V
Q
-
+
S
Q
R
R
+
COMP
GND
ISNS
Functional Pin Description
Pin Name
Pin Number
Function Description
1
COMP
2
FB
3
ISNS
4
RT/CT
5
6
7
GND
OUT
VDD
8
VREF
Compensation: Connect external compensation network to
modify the error amplifier output.
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.
Ground: Combined analog and power ground.
Power Output: Totem-pole output.
Analog Supply (Input): Controller circuitry supply input. Return
to analog ground (AGND).
5V Reference (Output): Connect external RC network.
Copyright  ANPEC Electronics Corp.
Rev. A.7 - Jan., 2003
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APW38HC42A/3A/4A/5A
Absolute Maximum Ratings
Symbol
Parameter
Rating
Unit
24
V
VDD
Supply Voltage
VISNS
Current Sense Voltage
-0.3 to 5.5
V
VFB
Feedback Voltage
-0.3 to 5.5
V
TJ
Junction Temperature Range
300
°C
-65 to 150
°C
TSTG
Storage Temperature
TSDR
Soldering Temperature
300,10 Seconds
°C
VESD
Minimum ESD Rating
±3
kV
Thermal Characteristics
Symbol
θJA
Parameter
Thermal Resistance in Free Air
DIP
SOP
Value
Unit
125
175
°C/W
Electrical Characteristics
VDD =15V, Note3 ; RT=9.09KΩ; CT=3.3nF; -40oC ≤ TA ≤ 85oC; unless noted
Symbol
Parameter
REFERENCE VOLTAGE
V REF Reference Voltage
REG line Line Regulation
REG load Load Regulation
Temp. Stability
Total Output Variation
Output Noise Voltage
Long Term Stability
ISC
Output Short Circuit
OSCILLATOR
F OSC Initial Accuracy
Voltage Stability
Temp. Stability
IDISCHG
Clock Ramp Reset
Current
V OSC Amplitude
ERROR AMPLIFIER
Input Voltage
Copyright  ANPEC Electronics Corp.
Rev. A.7 - Jan., 2003
Test Conditions
T A=25°C, IO (Output Current)=1mA
12V≤ V DD ≤ 18V, IO=5µA
1mA≤ IO ≤ 20mA
Line, Load, Temp.
10Hz≤ f ≤10kHz, T A = 25oC
T A = 125 oC, 1000 hrs
APW38HC4XA
Min.
Typ. Max.
4.90
4.82
-25
T A=25°C, Note 4
12V≤ V DD ≤ 18V
T MIN ≤ T A ≤ T MAX
T A=25°C, V RT/CT=2V
T A=T MIN to T MAX
V RT/CT peak to peak
V COMP=2.5V
49
7.7
7.2
2.42
3
5.00
1
6
0.2
50
5
-55
52
0.2
0.03
8.4
8.4
1.6
2.50
Unit
5.10
20
25
V
mV
mV
5.18
mV/°C
V
25
-120
µV
mV
mA
55
1.0
kHz
%
%/°C
9.0
9.5
mA
V P-P
2.58
V
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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
ERROR
IFB
A VOL
BW
AMPLIFIER
Input Bias Current
Open Loop Gain
Unity Gain Bandwidth
PSRR
Output Sink Current
Output Source Current
V OH Output Voltage (High)
V OL
Output Voltage (Low)
CURRENT SENSE
A
Gain
V THM Maximum Threshold
PSRR
IISNS Input Bias Current
TD
Delay to Output
OUTPUT
R DS(ON) High
R DS(ON) Low
tR
Rise Time
tF
Fall Time
UNDERVOLTAGE LOCKOUT
Test Conditions
APW38HC4XA
Min.
Typ.
Max.
V FB=5V
0.1
2≤ V O ≤ 4V
12≤ V DD ≤ 18V
V FB=2.7V, V COMP =1.1V
V FB=2.3V, V COMP =5V
V FB=2.3V, R L =15k to GND
V FB=2.7V, R L =15k to VREF
Notes 1,2
V COMP=5V, Note 1
12≤ V DD ≤ 18V, Note 1
V ISNS =5V
60
0.7
60
2
-0.5
5
2.85
0.9
70
1.0
7
-1
5.4
0.01
3.0
1.0
70
120
1.1
V/V
V
dB
0.1
250
µA
ns
6.3
Sinking Current = 200mA
T A =25°C, C L=1nF
T A =25°C, C L=1nF
4
15
10
30
20
APW38HC42/4A 13.5
APW38HC43/5A 7.8
APW38HC42/4A 8.0
APW38HC43/5A 7.0
14.5
8.4
9.0
7.6
15.5
9.0
10.0
8.2
APW38HC42/3A
APW38HC44/5A
96
50
V DD(MIN) Minimum Operating Voltage
µA
dB
MHz
dB
mA
mA
V
V
3.15
1.1
Sourcing Current = 200mA
V DD(ST) Start Threshold
Unit
Ω
ns
ns
V
V
PULSE WIDTH MODULATOR
D MAX
Maximum Duty Cycle
D MIN
Minimum Duty Cycle
94
46
%
0
%
150
150
4.0
µA
TOTAL STANDBY CURRENT
V DD=13V, APW38HC42/4A
V DD=7.5V, APW38HC43/5A
IDD(OP) Operating Supply Current
V FB =V ISNS= 0V, C L =1nF
Note 1 : Parameter measured at trip point of latch with VFB=0V.
IDD(ST)
Start-Up Current
30
25
2.0
mA
Note 2 : Gain defined as :
A=
∆VCOMP
, 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
Output Dead Time ( %)
20
F
0p
47
0p
F
1n
F
8n
1.
10
F
7n
4.
F
nF
10
RT Resistance (kΩ)
100
1
10nF
4.7nF
10
1.8nF
200pF
470pF
1nF
1
10
100
1000
10
100
Oscillator Frequency (kHz)
Oscillator Frequency (kHz)
Current Sense Amplifier Threshold vs.
Error Amplifier Output
9.0
Current Sense AMP Threshold (V)
Oscillator Discharge Current (mA)
Oscillator Discharge Current vs.
Temperature
8.8
8.6
8.4
8.2
8.0
7.8
7.6
7.4
VDD = 15V
VRTCT = 2V
7.2
7.0
-60
-30
0
30
60
90
120
150
1.2
-50oC
25oC
1.0
125 oC
0.8
0.6
0.4
0.2
0.0
0
1
2
3
4
5
6
7
Error Amplifier Output (V)
Temperature (°C)
Copyright  ANPEC Electronics Corp.
Rev. A.7 - Jan., 2003
1000
5
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APW38HC42A/3A/4A/5A
Typical Characteristics (Cont.)
Output Waveform
100
30
90
25
80
Output Voltage (V)
VREF Short-Circuit Current (mA)
Short-Circuit Current of VREF vs.
Temperature
70
60
50
40
30
20
15
10
5
0
20
-5
10
-10
0
-60
-30
0
30
60
90
120
0.0
150
0.1
0.2
0.3
Temperature (°C)
0.4
0.5
0.6
0.7
0.8
Time (µs)
Open Loop test Circuit
REF
RT
A
4.7K Ω
COM P
1K Ω
E rror A m p
A djust
V cc
2N 2222
100K Ω
5K Ω
IS E N S E
A djust
4.7K Ω
REF
A P W 38H C 42A /3A /4A /5A
V FB
V cc
0.1 µ F
0.1 µ F
IS E N S E
O U TP U T
R T/C T
GND
1K Ω , 1W
O utput
GND
CT
Copyright  ANPEC Electronics Corp.
Rev. A.7 - Jan., 2003
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APW38HC42A/3A/4A/5A
Packaging Information
PDIP-8 pin ( Reference JEDEC Registration MS-001)
D
E1
E
1
A2
A
1
E3
A1
L
e2
e1
e3
Dim
A
A1
A2
L
e1
e2
e3
Millimeters
Min.
Max.
5.33
0.38
2.92
9.02
3.68
10.16
Min.
0.36
1.14
2.92
0°
Copyright  ANPEC Electronics Corp.
Rev. A.7 - Jan., 2003
0.145
0.400
0.100BSC
0.56
1.78
0.014
0.045
7.62 BSC
8.26
6.10
Max.
0.210
0.015
0.115
0.355
2.54BSC
E
E1
E3
L
∅1
Inches
0.022
0.070
0.300 BSC
0.325
7.11
10.92
3.81
15°
7
0.240
0.115
0°
0.280
0.430
0.150
15°
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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
L
0.004max.
Dim
A
A1
D
E
H
L
e1
e2
∅1
1
Mi ll imet er s
Min .
1.3 5
0.1 0
4.8 0
3.8 0
5.8 0
0.4 0
0.3 3
Copyright  ANPEC Electronics Corp.
Rev. A.7 - Jan., 2003
Inc hes
Ma x .
1.7 5
0.2 5
5.0 0
4.0 0
6.2 0
1.2 7
0.5 1
1.2 7BS C
8°
Min .
0.0 53
0.0 04
0.1 89
0.1 50
0.2 28
0.0 16
0.0 13
Ma x .
0.0 69
0.0 10
0.1 97
0.1 57
0.2 44
0.0 50
0.0 20
0.5 0BS C
8°
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
C ritical Zone
T L to T P
T e m p e ra tu re
R am p-up
TL
tL
T sm ax
T sm in
R am p-down
ts
Preheat
25
t 25 °C to Peak
T im e
Classificatin Reflow Profiles
Profile Feature
Sn-Pb Eutectic Assembly
Large Body
Small Body
Average ramp-up rate
3°C/second max.
(TL to TP)
Preheat
- Temperature Min (Tsmin)
100°C
- Temperature Mix (Tsmax)
150°C
- Time (min to max)(ts)
60-120 seconds
Tsmax to TL
- Ramp-up Rate
Tsmax to TL
- Temperature(TL)
183°C
- Time (tL)
60-150 seconds
Peak Temperature(Tp)
225 +0/-5°C
240 +0/-5°C
Time within 5°C of actual Peak
10-30 seconds
10-30 seconds
Temperature(tp)
Ramp-down Rate
6°C/second max.
6 minutes max.
Time 25°C to Peak Temperature
Pb-Free Assembly
Large Body
Small Body
3°C/second max.
150°C
200°C
60-180 seconds
3°C/second max
217°C
60-150 seconds
245 +0/-5°C
250 +0/-5°C
10-30 seconds
20-40 seconds
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
ESD
Latch-Up
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
Carrier Tape & Reel Dimensions
t
D
P
Po
E
P1
Bo
F
W
Ko
Ao
D1
T2
J
C
A
B
T1
Application
A
B
C
J
T1
T2
W
P
E
SOP-8
330±1
62 ± 1.5
12.75 +
0.1 5
2 + 0.5
12.4 +0.2
2± 0.2
12 + 0.3
- 0.1
8± 0.1
1.75± 0.1
Application
F
D
D1
Po
P1
Ao
Bo
Ko
t
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
12
Cover Tape Width
9.3
Devices Per Reel
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
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