UPC494GS-E1 [NEC]
0.25A SWITCHING CONTROLLER, 300kHz SWITCHING FREQ-MAX, PDSO16, 0.300 INCH, PLASTIC, SOP-16;
| 型号： | UPC494GS-E1 |
| 厂家： | 
NEC |
| 描述： | 0.25A SWITCHING CONTROLLER, 300kHz SWITCHING FREQ-MAX, PDSO16, 0.300 INCH, PLASTIC, SOP-16 开关 光电二极管 |
| 文件： | 总19页 (文件大小：246K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
μPC494
SWITCHING REGULATOR CONTROL CIRCUIT
<R>
DESCRIPTION
The μ PC494 is a PWM type switching regulator control circuit.
Included in this device are a 5 V voltage reference, dual error amplifiers, a variable frequency sawtooth-wave
generating oscillator, a comparator for dead-time control, a flip flop, dual alternating output switches, and a buffer to
output source and sink currents.
Error amplifiers have wide common mode input voltage capability, and circuits for voltage feedback and over current
protection are easy to configure. The μ PC494 can be applied to all types of switching regulators, including chopper
type regulators.
<R>
FEATURES
• 250 mA output buffer to output sink and source currents
• Switchable operation mode between a single-end mode and a push-pull mode
• No double pulsing during transient condition
• Adjustable dead-time (0 to 100%)
• Internal 5 V output voltage reference circuit
• Error amplifiers with phase-compensating function
• Providing master-slave operation (synchronizing multiple ICs)
• With malfunction prevention circuit for low level supply voltage
• Package variations available for different applications
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all products and/or types are available in every country. Please check with an NEC Electronics
sales representative for availability and additional information.
Document No. G12649EJ5V0DS00 (5th edition)
Date Published August 2008 NS
Printed in Japan
1988, 2000, 2008
The mark <R> shows major revised points.
The revised points can be easily searched by copying an "<R>" in the PDF file and specifying it in the "Find what:" field.
μPC494
<R>
ORDERING INFORMATION
Part Number
Package
Package Type
• plastic magazine
μ PC494C
16-pin plastic DIP (7.62 mm (300))
16-pin plastic SOP (7.62 mm (300))
16-pin plastic SOP (7.62 mm (300))
μ PC494GS
μ PC494GS-E1
• plastic magazine
• embossed taping
• Pin 1 on draw-out side
• 2500 pcs/reel
μ PC494GS-E2
16-pin plastic SOP (7.62 mm (300))
• embossed taping
• Pin 1 at take-up side
• 2500 pcs/reel
Note
μ PC494GT-A
16-pin plastic SOP (9.53 mm (375))
16-pin plastic SOP (9.53 mm (375))
• plastic magazine
• embossed taping
• Pin 1 on draw-out side
• 1500 pcs/reel
Note
μ PC494GT-E1-A
Note
μ PC494GT-E2-A
16-pin plastic SOP (9.53 mm (375))
• embossed taping
• Pin 1 at take-up side
• 1500 pcs/reel
Note
μ PC494GS-A
16-pin plastic SOP (7.62 mm (300))
16-pin plastic SOP (7.62 mm (300))
• plastic magazine
• embossed taping
• Pin 1 on draw-out side
• 2500 pcs/reel
Note
μ PC494GS-E1-A
Note
μ PC494GS-E2-A
16-pin plastic SOP (7.62 mm (300))
• embossed taping
• Pin 1 at take-up side
• 2500 pcs/reel
Note Pb-free (This product does not contain Pb in the external electrode and other parts.)
2
Data Sheet G12649EJ5V0DS00
μPC494
BLOCK DIAGRAM
Output Control
13
V
CC 12
Reference Low Voltage
Ref Out 14
GND 7
Regulator
Stop
8 C
9 E
11 C
10 E
1
F
T /
1
F
2
R
C
T
T
6
5
Oscillator
2
Dead-Time
+
–
Comparator
Dead-Time
Control
4
+
–
EA I
+
–
+
–
Non-Inv. Input 1
Inv. Input 2
PWM
Comparator
EA II
Non-Inv. Input 16
Inv. Input 15
Feed-Back 3
PIN CONFIGURATION (Top View)
• μ PC494C, 494GS, 494GT-A, 494GS-A
<R>
Non-Inv. Input
Inv. Input
1
2
3
4
5
6
7
8
16
Non-Inv. Input
Inv. Input
15
14
13
12
11
10
9
Feed-Back
Ref Out
Dead-Time
Control
Output Control
C
T
V
CC
R
T
C
2
GND
E
E
2
1
C
1
3
Data Sheet G12649EJ5V0DS00
μPC494
<R> ABSOLUTE MAXIMUM RATINGS (TA = 25°C, unless otherwise noted)
Characteristics
Supply Voltage
Symbol
VCC
μ PC494C
μ PC494GS
μ PC494GT-A
μ PC494GS-A
Unit
V
−0.3 to +41
Error Amplifier Input Voltage
VICM
−0.3 to VCC +0.3
−0.3 to +5.25
V
Dead-time Comparator Input
Voltage
VDTC
V
Output Voltage
VCER
IC
−0.3 to +41
V
Output Current
250
mA
mW
°C
Note
Note
Note
650
780
650
Total Power Dissipation
PT
1000
Operating Ambient Temperature TA
Storage Temperature
−20 to +85
−65 to +150
Tstg
°C
Note With 5 cm x 5 cm x 1.6 mmt glass-epoxy substrate.
Caution Product quality may suffer if the absolute maximum rating is exceeded even momentarily for any
parameter. That is, the absolute maximum ratings are rated values at which the product is on the
verge of suffering physical damage, and therefore the product must be used under conditions that
ensure that the absolute maximum ratings are not exceeded.
RECOMMENDED OPERATING CONDITIONS
Characteristics
Supply Voltage
Symbol
MIN.
7
TYP.
MAX.
40
Unit
V
VCC
Output Voltage
VCER
IC
−0.3
+40
V
Output Current (per output stage)
Error Amplifier Sink Current
Timing Capacitor
<R>
200
mA
mA
nF
kΩ
kHz
°C
IOAMP
CT
−0.3
10000
500
0.47
1.8
1
Timing Resistance
RT
Oscillation Frequency
Operating Ambient Temperature
fOSC
TA
300
−20
+70
Caution The recommended operating range may be exceeded without causing any problems provided that
the absolute maximum ratings are not exceeded. However, if the device is operated in a way that
exceeds the recommended operating conditions, the margin between the actual conditions of use
and the absolute maximum ratings is small, and therefore thorough evaluation is necessary. The
recommended operating conditions do not imply that the device can be used with all values at their
maximum values.
4
Data Sheet G12649EJ5V0DS00
μPC494
ELECTRICAL SPECIFICATIONS (VCC = 15 V, f = 10 kHz, −20°C ≤ TA ≤ +70°C, unless otherwise noted)
(1/2)
Note1
TYP.
Block
Characteristics
Output Voltage
Symbol
Conditions
MIN.
4.75
MAX.
5.25
25
Unit
V
Reference
Section
VREF
IREF = 1 mA, TA = 25°C
7 V ≤ VCC ≤ 40 V,
IREF = 1 mA, TA = 25°C
1 mA ≤ IREF ≤ 10 mA,
TA = 25°C
5
Line Regulation
REGIN
8
mV
Load Regulation
REGL
1
15
mV
Temperature Coefficient
ΔVREF /ΔT −20°C ≤ TA ≤ +85°C,
0.01
0.03
%/°C
IREF = 1 mA
Note2
Short Circuit Output Current
Frequency
ISHORT
VREF = 0 V
50
10
mA
Oscillator
Section
fOSC
CT = 0.01 μF,
RT = 12 kΩ
kHz
Note3
Standard Deviation of Frequency
Frequency Change with Voltage
7 V ≤ VCC ≤ 40 V,
TA = 25°C, under
recommended operating
conditions of CT and RT
constants.
10
%
7 V ≤ VCC ≤ 40 V,
TA = 25°C,
CT = 0.01 μF, RT = 12 kΩ
0°C ≤ TA ≤ 70°C,
CT = 0.01 μF,
1
1
%
%
Frequency Change with Temperature
2
RT = 12 kΩ
Dead- Time Input Bias Current
0 V ≤ VDTC ≤ 5.25 V
VDTC = 0 V
−2
49
3
−10
μA
%
V
Control
Section
Maximum Duty Cycle (Each Output)
Input Threshold Voltage 1
45
0
VTH1
Output pulse 0% duty cycle
3.3
Input Threshold Voltage 2
VTH2
Output pulse maximum duty
cycle
V
Error
Input Offset Voltage
Input Offset Current
Input Bias Current
VIO
IIO
VOAMP = 2.5 V
2
10
250
1
mV
nA
μA
V
Amplifier 1, 2
Section
VOAMP = 2.5 V
25
0.2
VOAMP = 2.5 V
Common Mode
Input Voltage
Low level
High level
VICM
7 V ≤ VCC ≤ 40 V
−0.3
VCC − 2
60
Open Loop Voltage Gain
AV
VOAMP = 0.5 to 3.5 V,
TA = 25°C
80
dB
Unity Gain Bandwidth
TA = 25°C
500
65
830
80
kHz
dB
mA
mA
V
Common Mode Rejection Ratio
Output Sink Current
CMR
VCC = 40 V, TA = 25°C
VOAMP = 0.7 V
0.3
−2
0.7
−10
4
Output Source Current
VOAMP = 3.5 V
PWM
Input Threshold Voltage (Pin 3)
Output pulse 0% duty cycle,
see Figure 1.
4.5
Section
Input Sink Current
V(Pin 3) = 0.7 V
0.3
0.7
mA
Notes 1. The TYP. values are values at TA = 25°C, except for the characteristics of temperature.
2. The short circuit output current flow must be terminated within 1 second.
Repeated operations are allowed while internal heat accumulation is within a safe range.
3. Standard deviation is a measure of the statistical distribution about the mean as derived from the formula;
N
∑ (Xn − X)2
σ =
n = 1
N − 1
Calculation expression of frequency fOSC is as follows ;
1
fOSC ≅
(Hz)
[RT] = Ω, [CT] = F
6
0.817 RT • CT + 1.42 • 10−
5
Data Sheet G12649EJ5V0DS00
μPC494
(2/2)
Note
TYP.
Block
Output
Characteristics
Symbol
Conditions
MIN.
MAX.
100
Unit
Collector Cut-off Current
ICER
VCE = 40 V, VCC = 40 V,
Common Emitter
μA
Section
Emitter Cut-off Current
VCC = VC = 40 V, VE = 0 V,
Emitter Follower
−100
1.3
μA
V
Collector Saturation
Voltage
Common
Emitter
VCE(sat)
IC = 200 mA, VE = 0 V
0.95
Emitter
VCE(ON)
IE = −200 mA, VC = 15 V
1.6
2.5
V
Follower
Output Voltage Rise Time Common
tr1
VCC = 15 V, RL = 150 Ω,
IC ≅ 100 mA, TA = 25°C,
see Figure 1.
100
70
200
200
200
200
12.5
ns
ns
Emitter
Output Voltage Fall Time
tf1
Output Voltage Rise Time Emitter
tr2
VC = 15 V, RL = 150 Ω,
IE ≅ 100 mA, TA = 25°C,
see Figure 1.
100
70
ns
Follower
Output Voltage Fall Time
tf2
ns
Total
Standby Current
ICC(S.B)
VCC = 15 V,
8
mA
Device
all other pins open.
V(Pin 4) = 2 V, see Figure 1.
Bias Current
ICC(BI)
10
mA
Note The TYP. values are values at TA = 25°C, except for the characteristics of temperature.
6
Data Sheet G12649EJ5V0DS00
μPC494
TEST CIRCUIT AND WAVEFORM CHARACTERISTICS
Figure1. Test Circuit
VCC = 15 V
R
L
R
L
(12)
150 Ω 150 Ω
2 W 2 W
VCC
(4)
(3)
(6)
(5)
(1)
(2)
Dead-Time
Control
Feed-Back
(8)
(9)
C
1
1
Output 1
Output 2
Test Input
E
(11)
(10)
12 kΩ
C
E
2
2
RT
Note
μ
0.01
F
CT
Non-Inv. Input
Inv. Input
Non-Inv. Input
Inv. Input
(16)
(15)
(13)
Output ControlRef Out (14)
GND
(7)
50 kΩ
Note Recommend film capacitor.
Caution When the emitter follower is output, connect C1 and C2 to VCC and E1 and E2 to GND via RL.
Figure2. Voltage Waveform
V
CC
C
1
Output Voltage
Output Voltage
0 V
V
CC
C
2
0 V
C
T
Voltage
sawtooth-wave
oscillation output
Threshold Voltage
Dead-Time Control
Input Voltage
0% MAX.
Threshold Voltage
0%
Feed-Back Input
(E.A. Output)
0.7 V
Connection of Output Control Pin (Pin 13)
Output Control Input (Pin 13)
Operation Mode
Ref Out
GND
push-pull
Single-ended operation (common-mode output of C1, C2)
7
Data Sheet G12649EJ5V0DS00
μPC494
TYPICAL PERFORMANCE CHARACTERISTICS
(Unless otherwise specified, TA = 25°C, VCC = 15 V, Reference)
MISS-OPERATION PREVENTION
CIRCUIT CHARACTERISTICS
MAXIMUM POWER DISSIPATION
<R>
1.2
1.0
0.8
0.6
0.4
0.2
0
6
5
4
3
2
1
0
Test Circuit
5 V
Note With 5 cm x 5 cm x 1.6 mmt
glass-epoxy substrate
430 Ω
μPC494C
8
Thermal Resistance
9
VCE
Rth(J-A)125°C/W
μPC494GS,
494GS-A Note
μPC494GT-A Note
25
50
75
100
125
4
5
6
7
T
A
- Operating Ambient Temperature - °C
VCC - Supply Voltage - V
REFERENCE VOLTAGE vs.
OPERATING AMBIENT TEMPERATURE
REFERENCE VOLTAGE vs.
SUPPLY VOLTAGE
40
6
5
4
3
2
1
0
V
CC = 15 V
IREF = 1 mA
20
0
–20
–40
–60
–25
0
25
50
75
100
5
10 15 20 25 30 35 40
CC - Supply Voltage - V
Δ
T
A
- Operating Ambient Temperature - °C
V
FREQUENCY vs.
FREQUENCY vs. R
T
AND C
T
OPERATING AMBIENT TEMPERATURE
4
VCC = 15 V
VCC = 15 V
500
200
R
T
= 12 kΩ
= 0.01 μF
2
CT
0
100
50
–2
–4
–6
20
10
5
2
1
Δ
2
5
10 20 50 100200 500
–25
0
25
50
75
100
R
T
- Timing Resistance - kΩ
TA
- Operating Ambient Temperature - °C
8
Data Sheet G12649EJ5V0DS00
μPC494
OPEN-LOOP VOLTAGE GAIN vs.
FREQUENCY
DUTY CYCLE vs. DEAD-TIME
CONTROL INPUT VOLTAGE
120
100
80
60
40
20
0
0
10
20
30
40
50
V
CC = 15 V
R
C
T
= 12 kΩ
= 0.01 μF
T
0
1
2
3
1
10 100 1 k 10 k 100 k 1 M 10 M
f - Frequency - Hz
V
DTC - Dead-Time Control Input Voltage - V
COLLECTOR SATURATION VOLTAGE
vs. OUTPUT CURRENT
STANDBY AND BIAS CURRENT vs.
SUPPLY VOLTAGE
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
12
10
8
6
4
ICC (S.B)
VCC Terminal Biased.
Other Terminal Open.
ICC (BI)
2
VDTC = 2 V (Pin 4)
0
0
40
, I
80
120
160
200
10
20
30
40
I
C
E
- Output Current - mA
VCC - Supply Voltage - V
9
Data Sheet G12649EJ5V0DS00
μPC494
BASIC APPLICATION CIRCUIT
VOUT
Switching regulator
output pin
JP2
GND
rsense
VCC
12 V
VR3
R
13
+
C
47 μF
6
C1
R12
R
110 Ω
11
100 Ω
7.5 kΩ 5 kΩ
JP1
R
14
–Iosense
+Iosense
110 Ω
C
2
R15
E2
E1
C1
0.01 μF
100 Ω
C
2
16
+
15
–
14
13
12
11
10
9
V
osense
R
110 Ω
9
R
110 Ω
10
REFERENCE
REGULATOR
ERROR
AMP
2
R17
R
16
R
3
100 kΩ
C7
F/F
3.9 kΩ R
1
5.1 kΩ
ERROR
AMP
1
OSCILLATOR
+
1
–
2
VR
1
0.1 V
3
4
5
6
7
8
2 kΩ
R
4
C5
2 kΩ
240 kΩ
R2
R
24 kΩ
8
5.1 kΩ
5.1 k
Ω
VR2
R5
C
4
C
3
R
6
R7
+
7.5 kΩ
0.01 μF 24 kΩ
10 μF
+5 V (VREF
)
Remark fOSC ≅ 40 kHz, C5 = 1000 pF (Recommend film capacitor)
10
Data Sheet G12649EJ5V0DS00
μPC494
CONNECTION DIAGRAM
Output Control Input
Operation Mode
Output Mode
Output Voltage Waveform
(Pin 13)
C1
C2
Push-pull
Ref Out (Pin 14)
(JP1 Wired)
Sink (R9, R10 short)
E1
E2
Source (R11, R12 short)
C1, C2
E1, E2
Single-ended operation
GND (Pin 7)
(JP2 Wired)
Sink (R9, R10 short)
Source (R11, R12 short)
11
Data Sheet G12649EJ5V0DS00
μPC494
TYPICAL EXAMPLE OF APPLICATION CIRCUITS
1) Forward Type
+VCC
+
–
+
V
OUT
+12 V
(12)
VCC
(8)
C
1
(13)
Output
Control
To EA II
(Over Current (Vosense
Protection )
To EA I
(9)
(7)
)
E
1
GND
(14)
Ref Out GND
2) Push-pull Type
(Isolated)
+VCC
+
–
+
V
OUT
GND
+12 V
(12)
To EA II
To EA I
(11)
(10)
2 VCC
C
E
E
2
1
(9)
(8)
(7)
C
1
Output
Control
(13)
(14)
GND
Ref Out
(Non Isolated)
+VCC
(40 V MAX.)
(12)
(11)
V
CC
C
2
+
–
(10)
(9)
+
E
E
2
1
V
OUT
(13)
(14)
Output
Control
(8)
Ref Out
GND
C
1
(7)
To EA II
To EA I
GND
12
Data Sheet G12649EJ5V0DS00
μPC494
3) Step-down Chopper
+
–
(40 V MAX.)
(12)
+VCC
+
(11)
V
CC
V
OUT
C
2
(10)
(9)
E
E
C
2
1
Output
Control
GND
(8)
(13)
1
To EA II
To EA I
(7)
(Over Current
Protection)
Remark The dotted line indicates the connection in case of large current.
EXAMPLE OF MASTER-SLAVE CONNECTION
To synchronize μ PC494 ICs, connect the pin 6 (RT) of a slave IC to pin 14 (Ref Out) of the same IC, and connect
both CT pins of master and slave ICs after confirming oscillator of slave IC is stopped.
+VCC
(14)
(6)
(12)
(7)
V
CC Ref Out
R
T
T
RT
(M)
C
(5)
GND C
T
(14)
(6)
(12)
(7)
V
CC Ref Out
RT
(S)
(M) : Master
(S) : Slave
(5)
GND C
T
13
Data Sheet G12649EJ5V0DS00
μPC494
PACKAGE DRAWINGS (Unit : mm)
μ PC494C
16-PIN PLASTIC DIP (7.62mm(300))
16
9
1
8
A
J
K
L
P
I
F
C
B
H
R
M
M
N
D
G
NOTES
ITEM MILLIMETERS
1. Each lead centerline is located within 0.25 mm of
its true position (T.P.) at maximum material condition.
A
B
C
D
F
G
H
I
20.32 MAX.
1.27 MAX.
2.54 (T.P.)
0.50 0.10
1.1 MIN.
2. Item "K" to center of leads when formed parallel.
3.5 0.3
0.51 MIN.
4.31 MAX.
5.08 MAX.
7.62 (T.P.)
6.5
J
K
L
+0.10
0.25
M
−0.05
N
P
R
0.25
1.1 MIN.
0∼15°
P16C-100-300B-2
14
Data Sheet G12649EJ5V0DS00
μPC494
μ PC494GT-A
<R>
16-PIN PLASTIC SOP (9.53 mm (375))
16
9
detail of lead end
P
1
8
A
H
I
F
J
G
S
C
B
L
S
N
K
M
D
M
E
NOTE
ITEM MILLIMETERS
Each lead centerline is located within 0.12 mm of
its true position (T.P.) at maximum material condition.
A
B
C
10.2 0.26
0.805 MAX.
1.27 (T.P.)
+0.08
0.42
D
−0.07
E
F
G
H
I
0.125 0.075
2.9 MAX.
2.50 0.2
10.3 0.3
7.2 0.2
J
1.6 0.2
+0.08
0.17
K
−0.07
L
M
N
0.8 0.2
0.12
0.10
+7°
3°
P
−3°
P16GT-50-375B-2
15
Data Sheet G12649EJ5V0DS00
μPC494
μ PC494GS, 494GS-A
16-PIN PLASTIC SOP (7.62 mm (300))
16
9
detail of lead end
P
1
8
A
H
I
F
G
J
S
B
L
N
S
K
C
D
M
M
E
NOTE
ITEM MILLIMETERS
Each lead centerline is located within 0.12 mm of
its true position (T.P.) at maximum material condition.
A
B
C
10.2 0.2
0.78 MAX.
1.27 (T.P.)
+0.08
0.42
D
−0.07
E
F
G
H
I
0.1 0.1
1.65 0.15
1.55
7.7 0.3
5.6 0.2
1.1 0.2
J
+0.08
0.22
K
−0.07
L
M
N
0.6 0.2
0.12
0.10
+7°
3°
P
−3°
P16GM-50-300B-6
16
Data Sheet G12649EJ5V0DS00
μPC494
<R>
RECOMMENDED SOLDERING CONDITIONS
The μ PC494 should be soldered and mounted under the following recommended conditions.
For soldering methods and conditions other than those recommended below, contact an NEC Electronics sales
representative.
For technical information, see the following website.
Semiconductor Device Mount Manual (http://www.necel.com/pkg/en/mount/index.html)
Type of Through-hole Device
μ PC494C: 16-pin plastic DIP (7.62 mm (300))
Process
Conditions
Symbol
Wave Soldering
Solder temperature: 260°C or below, Flow time: 10 seconds or less
WS60-00
(only to leads)
Partial Heating Method
Pin temperature: 300°C or below,
P300
Heat time: 3 seconds or less (Per each side of the device)
Caution For through-hole device, the wave soldering process must be applied only to leads, and make sure
that the package body does not get jet soldered.
Type of Surface Mount Device
μ PC494GS: 16-pin plastic SOP (7.62 mm (300))
Process
Conditions
Symbol
Infrared Ray Reflow
Maximum temperature (package’s surface temperature): 235°C or below,
Time at maximum temperature: 10 seconds or less,
IR35-00-3
Time at temperature higher than 210°C: 30 seconds or less,
Preheating time at 100 to 160°C: 30 to 60 seconds, Times: 3 times,
Flux: Rosin flux with low chlorine (0.2 Wt% or below) recommended.
Maximum temperature (package’s surface temperature): 215°C or below,
Reflow time: 25 to 40 seconds or less (at 200°C or higher),
Preheating time at 120 to 150°C: 30 to 60 seconds, Times: 3 times,
Flux: Rosin flux with low chlorine (0.2 Wt% or below) recommended.
Solder temperature: 260°C or below, Flow time: 10 seconds or less,
Maximum number of flow processes: 1 time,
Vapor Phase Soldering
VP15-00-3
Wave Soldering
WS60-00-1
P350
Preheating temperature: 120°C MAX. (Package surface temperature).
Pin temperature: 350°C or below,
Partial Heating Method
Heat time: 3 seconds or less (Per each side of the device),
Flux: Rosin flux with low chlorine (0.2 Wt% or below) recommended.
Caution Apply only one kind of soldering condition to a device, except for "partial heating method", or the
device will be damaged by heat stress.
17
Data Sheet G12649EJ5V0DS00
μPC494
μ PC494GT-A Note1: 16-pin plastic SOP (9.53 mm (375))
Process
Conditions
Symbol
Infrared Ray Reflow
Maximum temperature (package’s surface temperature): 260°C or below,
Time at maximum temperature: 10 seconds or less,
IR60-207-3
Time at temperature higher than 220°C: 60 seconds or less,
Preheating time at 160 to 180°C: 60 to 120 seconds, Times: 3 times,
Note2
Exposure limit: 7 days
(after that, prebake at 125°C for 20 hours),
Flux: Rosin flux with low chlorine (0.2 Wt% or below) recommended.
Solder temperature: 260°C or below, Flow time: 10 seconds or less,
Maximum number of flow processes: 1 time,
Wave Soldering
WS60-207-1
Preheating temperature: 120°C MAX. (Package surface temperature),
Note2
Exposure limit: 7 days
(after that, prebake at 125°C for 20 hours).
Partial Heating Method
Pin temperature: 350°C or below,
P350
Heat time: 3 seconds or less (Per each side of the device),
Flux: Rosin flux with low chlorine (0.2 Wt% or below) recommended.
Notes 1. Pb-free (This product does not contain Pb in the external electrode and other parts.)
2. After opening the dry pack, store it a 25°C or less and 65% RH or less for the allowable storage period.
μ PC494GS-A Note: 16-pin plastic SOP (7.62 mm (300))
Process
Conditions
Symbol
Infrared Ray Reflow
Maximum temperature (package’s surface temperature): 260°C or below,
Time at maximum temperature: 10 seconds or less,
IR60-00-3
Time at temperature higher than 220°C: 60 seconds or less,
Preheating time at 160 to 180°C: 60 to 120 seconds, Times: 3 times,
Flux: Rosin flux with low chlorine (0.2 Wt% or below) recommended.
Solder temperature: 260°C or below, Flow time: 10 seconds or less,
Maximum number of flow processes: 1 time,
Wave Soldering
WS60-00-1
P350
Preheating temperature: 120°C MAX. (Package surface temperature).
Pin temperature: 350°C or below,
Partial Heating Method
Heat time: 3 seconds or less (Per each side of the device),
Flux: Rosin flux with low chlorine (0.2 Wt% or below) recommended.
Note Pb-free (This product does not contain Pb in the external electrode and other parts.)
Caution Apply only one kind of soldering condition to a device, except for "partial heating method", or the
device will be damaged by heat stress.
18
Data Sheet G12649EJ5V0DS00
μPC494
•
The information in this document is current as of August, 2008. The information is subject to
change without notice. For actual design-in, refer to the latest publications of NEC Electronics data
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•
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(Note)
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M8E 02. 11-1
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