TSM114

Pin Descriptions

2/14

1

Pin Descriptions

Table 1: This table gives the pin description for DIP14 package

2

Absolute Maximum Ratings

Table 2: Key parameters and their absolute maximum ratings

Table 3: Operating Conditions

Name

Pin #

Type

Function

Fault

1

Open collector

Fault output. Output of the over voltage and under voltage comparators

Gnd

2

Power supply

Signal ground and silicon substrate

PG

3

Open collector

Output of the Tpg comparator. This pin goes low upon an under voltage

condition. Except for the delay set by the Tpg capacitor this pin always

reflects the actual state of the under voltage sensing comparators output.

Tpg

4

Timing capacitor

A capacitor from this pin to Gnd provides a delay between outputs rail

voltage within regulation and PG output going high. Capacitor discharges

whenever Bsense low or Rem high or UVP is detected.

Rem

5

Control Input pin

Pulling this pin high will send the Fault pin high latching off the power sup-

ply, reset the internal latch, discharge the start-up timing capacitors, Tuv

and Tpg capacitors, allowing normal start up of the system. Pulling this pin

low will send the Fault pin low, initiating a normal start up function.

Trem

6

Timing capacitor

A capacitor from this pin to Gnd will delay the Fault signal when the Rem

pin is used to shut down the power supply. The PG will signal a power fail-

ure warming immediately, but the Fault pin shut down of the power will be

delayed.

Tuv

7

Timing capacitor

A capacitor from this pin to Gnd will provide the under voltage blanking

function. This capacitor is charging when the Bsense and Rem signal is in

the right state. As the voltage at this pin is larger than the Vref voltage.

The under voltage function resume.

Bsense

8

Control input pin

Non inverting input to the Bsense voltage sensing comparator. Pulling this

pin lower than 2.5V will cause PG goes low and Tuv goes low.

Vs5

9

Analog input

Over voltage and under voltage detection for +5V rail

Vs12

10

Analog input

Over voltage and under voltage detection for +12V rail

Vs-12

11

Analog input

Over voltage and under voltage detection for -12V rail.

Vs3.3

12

Analog input

Over voltage and under voltage detection for 3.3V rail. This function is dis-

abled by connecting to Vcc

Rcrnt

13

Analog input

A resister from this pin to Gnd will provide the internal constant current.

Vcc

14

Power supply

Supply input voltage

Symbol

DC Supply Voltage

Value

Unit

Vcc

1) All voltage values, except differential voltage are with respect to network ground terminal.

-0.3 to 25

V

Vpmax

Terminal voltage V12, V5, V3.3

-0.3 to 25

V

Vnmax

Terminal voltage V-12

-16 to Vref

V

VDBTT

VTuv, VTpg, VTrem input voltage

-0.3 to 3.3V

V

VTER

Other terminals

-0.3 to Vcc

V

PT

Power dissipation

1

W

Toper

Operational temperature

0 to 95

°C

Tstg

Storage temperature

-55 to 150

°C

Tj

Junction temperature

150

°C

ESD

Electrostatic Discharge

2K

V

Symbol

Parameter

Value

Unit

Vcc

DC Supply Conditions

4.2 to 24

V