TPS386000

TPS386040

(ThermalPad)

CT4

CT3

CT1

NC

VREF

1

2

3

4

5

15

14

13

12

11

CT2

GND

MR

VCC

RESET1

TPS386020

TPS386060

CT4

CT3

CT1

NC

VREF

1

2

3

4

5

15

14

13

12

11

CT2

GND

MR

VCC

RESET1

(ThermalPad)

TPS386000, TPS386020

TPS386040, TPS386060

PIN CONFIGURATIONS

RGP PACKAGE

QFN-20

(TOP VIEW)

PIN ASSIGNMENTS

PIN

NAME

NO.

DESCRIPTION

VCC

14

Supply voltage. Connecting a 0.1μF ceramic capacitor close to this pin is recommended.

GND

12

Ground

When the voltage at this terminal drops below the

SENSE1

10

Monitor voltage input to SVS-1

When the voltage at this terminal drops below the

SENSE2

9

Monitor voltage input to SVS-2

When the voltage at this terminal drops below the

SENSE3

8

Monitor voltage input to SVS-3

Falling monitor voltage input to SVS-4. When the voltage at this terminal drops below the threshold

SENSE4L

7

Rising monitor voltage input to SVS-4. When the voltage at this terminal exceeds the threshold voltage

SENSE4H

6

in combination with VREF pin.

CT1

5

Reset delay programming pin for SVS-1

Connecting this pin to VCC through a 40kΩ to

200kΩ resistor, or leaving it open, selects a fixed

CT2

4

Reset delay programming pin for SVS-2

CT3

3

Reset delay programming pin for SVS-3

Connecting a capacitor > 220pF between this pin

and GND selects the programmable delay time

CT4

2

Reset delay programming pin for SVS-4

Reference voltage output. By connecting a resistor network between this pin and the negative power

rail, SENSE4H can monitor the negative power rail. This pin is intended to only source current into

VREF

13

resistor(s). Do not connect only capacitors and do not connect resistor(s) to a higher voltage than this

pin.

MR

1

Manual reset input for SVS-1. Logic low level of this pin asserts RESET1 or RESET1.

Watchdog timer (WDT) trigger input. Inputting either a positive or negative logic edge every 610ms (typ)

WDI

20

prevents WDT time out at the WDO or WDO pin. Timer starts from releasing event of RESET1 or

RESET1.

NC

11

Not connected. It is recommended to connect this pin to the GND pin (pin 12), which is next to this pin.

This is the IC substrate. This pad must be connected only to GND or to the floating thermal pattern on

(Thermal Pad)

(PAD)

the printed circuit board (PCB).

8

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