PKF4110BR2A Ericsson Microelectronics, PKF4110BR2A Datasheet - Page 7

• Manufacturer Part Number: PKF4110BR2A
• Manufacturer: Ericsson Microelectronics

Operating Information
Remote Control (RC)
Turn-on or turn-off can be realized by using the RC-pin. If pin 11 is
connected to pin 17 the power module turns off. Normal operation
is achieved if pin 11 is open (NC). To ensure safe turn-off the
voltage difference between pin 11 and 17 shall be less than 1.0V.
RC is an TTL open collector compatible output with a sink capacity
>300 µA (see fig. 1).
Turn-on/off Input Voltage
The power module monitors the input voltage and will turn on and
turn off at predetermined levels. This is not adjustable.
Output Voltage Adjust (V
Output voltage, V
other external circuitry. If other circuitry is used, the slew rate has
to be limited to maximum 5 V/ms.
To increase V
To calculate the appropriate resistor use the following formula:
Radj
V
V
To decrease V
(see fig. 2).
Use the following formula to calculate the necessary current.
I
Parallel Operation
Contact Ericsson for more information.
EN/LZT 146 62 R2A © Ericsson Power Modules AB, February 2003
adj
Oi
Od
Figure 1
= 943 × (1- (
is the output voltage initial setting.
is the desired output voltage.
nom
= 4,14 ×
O
O
it is necessary to connect a current source to pin 8.
a resistor should be connected between pin 8 and 17.
(1,28 × V
V
V
O
Oi
Od
, can be adjusted by using an external resistor or
(V
) (µA)
Od
- V
Oi
Oi
- V
)
pin 8
Od
PKF
pin 18
_
adj
)
+
)
(k )
Information given in this data sheet is believed to be accurate and reliable.
No responsibility is assumed for the consequences of its use nor for any infringement
of patents or other rights of third parties which may result from its use.
No license is granted by implication or otherwise under any patent or patent rights of
Ericsson Power Modules. These products are sold only according to Ericsson
Power Modules general conditions of sale, unless otherwise confirmed in writing.
Specifications subject to change without notice.
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