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BAxxJC5 Series(Fixed)

BA00JC5WT(Variable)

Datasheet

TSZ02201-0R6R0A600140-1-2

© 2012 ROHM Co., Ltd. All rights reserved.

TSZ22111･15･001

www.rohm.com

14.Feb.2012 Rev.001

●I/O equivalence circuit

●Power Dissipation

• TO220FP-3/TO220FP-5

The characteristics of the IC are greatly influenced by the operating temperature. If the temperature exceeds the maximum

dissipation is within the permissible range in order to prevent instantaneous damage resulting from heat and maintain the

reliability of the IC for long-term operation.

The following method is used to calculate the power consumption Pc (W):

Pc = (Vcc – Vo)

× Io + Vcc × Icca

Power dissipation Pd

≥ Pc

The load current Io is calculated:

Calculation Example:

Vcc = 6.0V and Vo = 5.0V at Ta = 85℃

31k

Ω

2k

Ω

27k

Ω

CTL

Vcc

R2

R1

Vcc

OUT

* For the BA00JC5WT, connect R1 and R2

externally between the ADJ and GND pins

and between the OUT and ADJ pins.

(Vc = 1.25V (Typ.))

The recommended R1 value is approximately

30 k

Ω to 150 kΩ.

Fig.15

Fig.16

θja = 62.5°C/W → −16.0mW/°C

25°C = 2000mW

→ 85°C = 1040mW

Vcc : Input voltage

Vo

: Output current

: Load current

Icca : Circuit current

Io

≤ 860mA (Icca

≈ 30mA)

Fig.17

0

15

25

20

10

5

25

50

75

125

150

100

0

(1)20.0

(2)2.0

(2) During IC without heat sink operation.

θj-a = 62.5 (°C/W)

(1) When using an infinite heat sink.

θj-c = 6.25 (°C/W)

Io

≤

Pd

− Vcc

× Icca

Vcc

− Vo

1.040

− 6.0

× Icca

6.0

− 5.0

Io

≤