TCFG_A Datasheet, PDF (11/13 Pages) Rohm – Chip tantalum capacitors (Fail-safe open structure type)

Tantalum capacitors
1000
100
LC 1WV
10V−1μF P case (2012)
4V−4.7μF A case (3216)
4V−33μF B case (3528)
TCFG Series A Case
3
IMPEDANCE 100kHz
10V−1μF P case (2012)
4V−4.7μF A case (3216)
4V−33μF B case (3528)
2
10
1
−⁰⁵⁵
25
85
125
TEMPERATURE (°C)
Fig.11
−⁰⁵⁵
25
85
125
TEMPERATURE (°C)
Fig.12
Inrush current
Beware of inrush current.
Inrush currents are inversely proportional ESR. Large inrush currents can cause components failure.
100
10
1
0.1
0.1
33μF
33μF
15μF
4.7μF
100μF
4.7μF
47μF
22μF
tantalum capacitor
aluminum electrolysis
Vpp=10V llimit=20A
Pulse Width=500μs
Power OP Amp Slew Rate=10V/6μs
1
10
100
ESRΩ (100kHz)
Fig. 13 Maximum inrush current and ESR
Inrush current can be limited by means of a protective resistor.
100
10
R
I
=
V
0.476
1
I=
V
0.476+R
R=0Ω
SAMPLE 16V−3.3μF
Pulse width=500μs
Slew rate=10V−6μc
Current limit=20A
0.25
0.5
1.0
2.0
5.0
0.1
0.1
1
10
100
V (V)
Fig. 14 Imax change due to protective resistor R
Rev.D 11/12