BA3960 Rohm Semiconductor, BA3960 Datasheet

IC REG DUAL ADJ ON/OFF HSIP-B12

BA3960

Manufacturer Part Number
BA3960
Description
IC REG DUAL ADJ ON/OFF HSIP-B12
Manufacturer
Rohm Semiconductor
Datasheet

Specifications of BA3960

Regulator Topology
Positive Adjustable
Voltage - Output
1.5 ~ 21 V
Voltage - Input
4.5 ~ 22 V
Number Of Regulators
2
Current - Output
500mA (Min), 800mA (Min)
Operating Temperature
-25°C ~ 75°C
Mounting Type
Through Hole
Package / Case
12-SIP + Tab
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Dropout (typical)
-
Current - Limit (min)
-

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The BA3960 is a dual circuit, variable output, series regulator. PNP output transistors allow minimum voltage differential
between input and output. Each of the two circuits can be turned on or off independently by using the system logic control.
When both circuits are off, the IC keeps a standby state with no supply current.
FApplications
Audio and video systems, CD and CD-ROM systems, computer peripheral devices, industrial equipment
FFeatures
1) Containing two circuits of variable-output series reg-
2) PNP output transistor characterized by low satura-
3) Logic control allowing ON / OFF switching of output.
4) No supply current when both circuits are off.
FBlock diagram
136
Dual circuit, variable output voltage
regulator
BA3960
Regulator ICs
ulator.
tion voltage.
5) Output current limit circuit protects the IC against
6) Compact HSIP-B12 package allows a large power
7) Thermal protection circuit prevents heat damage to
short-circuiting damage.
dissipation.
the IC.

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BA3960 Summary of contents

Page 1

... BA3960 The BA3960 is a dual circuit, variable output, series regulator. PNP output transistors allow minimum voltage differential between input and output. Each of the two circuits can be turned on or off independently by using the system logic control. When both circuits are off, the IC keeps a standby state with no supply current. ...

Page 2

... Regulator ICs FAbsolute maximum ratings (Ta = 25_C) FElectrical characteristics (unless otherwise noted 25_C, V and R12, R22=3.9k ) FRecommended operating conditions = 12.0V, ACTIVE 640mA, ACTIVE BA3960 = 400mA O 137 ...

Page 3

... Regulator ICs FInput pin descriptions and equivalent circuits 138 FOutput voltage setting Output voltage setting R11 (21) ) R12 (22) Vref S R12 (22) (1.26V) Example of output voltage setting resistance ( 6V 8V R11 = 15k R21 = 22k R12 = 3.9k R22 = 3.9k BA3960 ...

Page 4

... See Fig. 5 for thermal derating characteristics, including some cases where heat sinks are used. P calculation MAX. S Power consumed by ACTIVE Power consumed by ACTIVE Power consumed internally by each circuit MAX. 1 FApplication example * set output voltage) maximum output voltage = ( set output voltage) maximum output voltage = ( circuit current BA3960 139 ...

Page 5

... Note that making a large change to the R12 and R22 values will affect the current capacity. (8) MODE voltage Due to the IC’s internal structure, a reverse current flow will occur if the MODE voltage exceeds the V Make sure to avoid this. FExternal dimensions (Units: mm lower). F BA3960 voltage. CC ...

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