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A321_CE_3101 (1/2)
Non-insulation, 8-pin SMD type, 1.2W output
TDK DC-DC Converter
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 25C. 2 Measuring frequency: 20MHz Output ripple noise is measured after connection of the indicated external capacitor Co to the output terminals.
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 Vs
Vout=[0.5769-(External voltage-0.75)/R2]x68+0.75 Voltage: V Resistance: k R1, C1: For removal of line noise D1: Fast recovery diode
The external voltage range should be determined by the following expression:
External voltageOUTPUT VOLTAGE VARIABLE CHARACTERISTICS
40 38 36 34 Vout (V) 32 30 28 26 24 100 200 300 400 500 RA(k) 1000
[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=0.5769x[68xRA/(69.3+RA)]+0.75 Voltage: V Resistance: k Recommended resistance range is 100 to 1000 k. RECOMMENDED SOLDERING CONDITIONS Method: Infrared(or hot air) reflow method Reflow temperature and time : 230C max., 5s min. : over 200C, 40s min. Preheating temperature and time: 130 to 160C, 90s min. Reflow cycle: 1 time(Vibrations should be avoided during reflow.) 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.
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.
A321_CE_3101 (2/2)
Non-insulation, 8-pin SMD type, 1.2W output
TDK DC-DC Converter
CE-3101
SHAPES AND DIMENSIONS
Marking
1 2 3 4 180.3 8xR0.4
8 7 6 5 11.80.3
4.5max.
P 2.90.25
P
P 2.90.25
60.25 P=20.25
RECOMMENDED PC BOARD PATTERN
CIRCUIT DIAGRAM
1.0
Control
1 2 Vin 3 4 NC
Vout (GND) 8 NC 7 Vset 6 Vout 5 Iout C2 + RA Load resistance
1.0
DC power supply
+ C1
15.4 (19.4) Dimensions in mm
C1:2.2F/6.3V C2:15F/50V
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: 150A max.
Oscillating method: Stable frequency method Oscillating frequency: Approx. 400kHz MTTF: 270Fit(3700000h)
COMMON SPECIFICATIONS
AUXILIARY FUNCTIONS Overcurrent protection Remote ON-OFF CONSTRUCTIONS External dimensions Weight Operating temperature range Storage temperature range Operating humidity range Storage humidity range mm g C C (%)RH (%)RH 18x4.5x11.8(WxHxD) 1.5 -10 to +60 -30 to +85 20 to 95[Maximum wet-bulb temperature: 38C, without dewing] 20 to 95[Maximum wet-bulb temperature: 38C, without dewing] Yes(Latch) Yes
TEMPERATURE AND HUMIDITY
A321_CE_3101 001127
All specifications are subject to change without notice.

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