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.