TDK CE-3101

A321_CE_3101
(1/2)
TDK DC-DC Converter
Non-insulation, 8-pin SMD type, 1.2W output
CE-3101
SPECIFICATIONS AND STANDARDS
PART NO.
CE-3101
Maximum output power
W
1.2
INPUT CONDITIONS
Input voltage Edc
V
+4.5 to +5.5(5V typ.)
Efficiency(typ.)∗1
%
72
OUTPUT CHARACTERISTICS
Output voltage Edc
V
+40
Maximum output current
mA
30
Output voltage setting deviation(max.) %
±4
Input variation(max.)
%
±1
Load variation(max.)
%
±1
Temperature variation(max.) %
±1.5
Ripple noise Ep-p(typ.)∗1, ∗2 mV
250
∗1 Typical input voltage, maximum output current, ambient temperature
25°C.
∗2 Measuring frequency: 20MHz
Output ripple noise is measured after connection of the indicated
external capacitor Co to the output terminals.
OUTPUT VOLTAGE VARIABLE CHARACTERISTICS
40
38
36
Vout (V)
34
OUTPUT VOLTAGE CONTROL
[EXTERNAL APPLIED VOLTAGE METHOD]
An external voltage is applied by the external circuit below. This
controls the output voltage(Vout).
R1
External voltage
+
C1
D1
R2
–
Vout=[0.5769–(External voltage–0.75)/R2]×68+0.75
Voltage: V
Resistance: kΩ
R1, C1: For removal of line noise
D1: Fast recovery diode
The external voltage range should be determined by the
following expression:
External voltage<R2×1mA+2.5(Unit: V)
[EXTERNAL RESISTANCE METHOD]: Refer to OUTPUT
VOLTAGE VARIABLE CHARACTERISTICS
An external resistance RA is placed between terminal No.
5(Vout) and No.6(Vset). This controls the output voltage(Vout).
Voltage changes per the following equation.
Vout=0.5769×[68×RA/(69.3+RA)]+0.75
Voltage: V
Resistance: kΩ
Recommended resistance range is 100 to 1000 kΩ.
32
RECOMMENDED SOLDERING CONDITIONS
Method: Infrared(or hot air) reflow method
Reflow temperature and time : 230°C max., 5s min.
: over 200°C, 40s min.
Preheating temperature and time: 130 to 160°C, 90s min.
Reflow cycle: 1 time(Vibrations should be avoided during reflow.)
30
28
26
24
100
200
300 400 500
RA(kΩ)
1000
PACKAGING STYLE AND QUANTITY
• Tray(1 layer: 50 pieces, 1 carton: 450 pieces max.)
• Taping(500 pieces)
All specifications are subject to change without notice.
PRECAUTIONS
• Install the components according to CIRCUIT DIAGRAM.
• This product operates only after the input-capacitor is
connected.
• Parallel operation to increase output current is not possible.
• Input fuse
A fuse should be connected to the input with a current rating 3
times that of the rated(normal) input current.
Vs
A321_CE_3101
(2/2)
TDK DC-DC Converter
Non-insulation, 8-pin SMD type, 1.2W output
CE-3101
SHAPES AND DIMENSIONS
Marking
2
7
8×R0.4
3
6
4
5
11.8±0.3
8
1
4.5max.
18±0.3
P
2.9±0.25
P
P
6±0.25
P=2±0.25
2.9±0.25
CIRCUIT DIAGRAM
RECOMMENDED PC BOARD PATTERN
Control
1.0
Vout (GND) 8
1
NC 7
2
DC power
supply
1.0
+ C1
Vin
3
Vset 6
4 NC
Vout 5
C2
+
RA
Load
resistance
Iout
15.4
C 1:2.2µF/6.3V
C 2:15µF/50V
(19.4)
Dimensions in mm
Oscillating method: Stable frequency method
Oscillating frequency: Approx. 400kHz
MTTF: 270Fit(3700000h)
Terminal connection
No. 1
Control
ON/OFF control
No. 2
+Vin
Input voltage(4.4 to 5.5V)
No. 3
–Vin(GND)
Input(GND)
No. 4
NC
No. 5
+Vout
Output(40V)
No. 6
Vset
Output voltage adjustable
No. 7
NC
No. 8
–Vout(GND)
Output(GND)
• Terminal No.3 and No.8 are connected internally.
• Control voltage.
High level(Vin–0.6 to Vin, or open): Output OFF.
Low level(0 to Vin–2.5V): Output ON.
• Control current: 150µA max.
COMMON SPECIFICATIONS
AUXILIARY FUNCTIONS
Overcurrent protection
Yes(Latch)
Remote ON-OFF
Yes
CONSTRUCTIONS
External dimensions
mm
18×4.5×11.8(W×H×D)
Weight
g
1.5
TEMPERATURE AND HUMIDITY
Operating temperature range
°C
–10 to +60
Storage temperature range
°C
–30 to +85
Operating humidity range
(%)RH
20 to 95[Maximum wet-bulb temperature: 38°C, without dewing]
Storage humidity range
(%)RH
20 to 95[Maximum wet-bulb temperature: 38°C, without dewing]
A321_CE_3101
001127
All specifications are subject to change without notice.