TPS16632RGER datasheet(21/43 Pages) TI1

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IMON

OUT

IMON

GAIN

TPS16632

PŸ

OUT

dVdT

ILIM

P_IN

RILIM

FLT

GND

SHDN

UVLO

PLIM

MODE

IMON

RIMON

PGOOD

Protected supply

To Load

4.5 V - 60 V

Load Monitor

ON/OFF Control

RPLIM

COUT

CdVdT

TPS1663

www.ti.com

SLVSET9D – SEPTEMBER 2018 – REVISED AUGUST 2019

Product Folder Links: TPS1663

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Feature Description (continued)

Figure 24. TPS16632 Typical Application Schematic

(1)

RPLIM = 100 kΩ

RILIM = 3 kΩ

Figure 25. 100 W class 2, Output Power Limiting Response of TPS16632

9.3.6 Current Monitoring Output (IMON)

The TPS1663x devices feature an accurate analog current monitoring output. A current source at IMON terminal

is internally configured to be proportional to the current flowing from IN to OUT. This current can be converted

into a voltage using a resistor R(IMON) from IMON terminal to GND terminal. The IMON voltage can be used as a

means of monitoring current flow through the system. The maximum voltage (V(IMONmax) for monitoring the

current is limited to 4 V. This puts a limitation on maximum value of R(IMON) resistor and is determined by

Equation 6.

Where,

•

GAIN(IMON) is the gain factor I(IMON):I(OUT) = 27.9μA/A (Typical)

•

I(OUT) is the load current

(6)

Refer to Figure 9 for IMON output versus load current plot. Figure 26 illustrates IMON performance.

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