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TPS650242RHBRG4 Datasheet(PDF) 9 Page - Texas Instruments

No. de pieza TPS650242RHBRG4
Descripción Electrónicos  Power Management ICs for Li-Ion Powered Systems
Download  34 Pages
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS650242RHBRG4 Datasheet(HTML) 9 Page - Texas Instruments

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DEVICE INFORMATION
PIN ASSIGNMENTS
24
23
22
21
20
19
18
17
910111213141516
3231302928272625
VDCDC3
PGND3
L3
VINDCDC3
VINDCDC1
L1
PGND1
VDCDC1
EN_Vdd_alive
MODE
DEFDCDC2
PWRFAIL
EN_DCDC1
EN_DCDC2
EN_DCDC3
EN_LDO
1
2
3
4
5
6
7
8
TPS65024
TPS650240
TPS650241
TPS650242
SLVS774 – JUNE 2007
TERMINAL FUNCTIONS
TERMINAL
I/O
DESCRIPTION
NAME
NO.
SWITCHING REGULATOR SECTION
AGND1
31
Analog ground connection. All analog ground pins are connected internally on the chip.
AGND2
13
Analog ground connection. All analog ground pins are connected internally on the chip.
PowerPad
Connect the power pad to analog ground.
VINDCDC1
5
I
Input voltage for VDCDC1 step-down converter. This must be connected to the same voltage supply as
VINDCDC2, VINDCDC3 and VCC.
L1
6
Switch pin of VDCDC1 converter. The VDCDC1 inductor is connected here.
VDCDC1
8
I
VDCDC1 feedback voltage sense input, connect directly to VDCDC1
PGND1
7
Power ground for VDCDC1 converter
VINDCDC2
28
I
Input voltage for VDCDC2 step-down converter. This must be connected to the same voltage supply as
VINDCDC1, VINDCDC3 and VCC.
L2
27
Switch pin of VDCDC2 converter. The VDCDC2 inductor is connected here.
VDCDC2
25
I
VDCDC2 feedback voltage sense input, connect directly to VDCDC2
PGND2
26
Power ground for VDCDC2 converter
VINDCDC3
4
I
Input voltage for VDCDC3 step-down converter. This must be connected to the same voltage supply as
VINDCDC1, VINDCDC2 and VCC.
L3
3
Switch pin of VDCDC3 converter. The VDCDC3 inductor is connected here.
VDCDC3
1
I
VDCDC3 feedback voltage sense input, connect directly to VDCDC3
PGND3
2
Power ground for VDCDC3 converter
VCC
29
I
Power supply for digital and analog circuitry of DCDC1, DCDC2 and DCDC3 DC-DC converters. This must
be connected to the same voltage supply as VINDCDC3, VINDCDC1 and VINDCDC2.
DEFDCDC1
9
I
Input signal indicating default VDCDC1 voltage, 0 = 2.80 V, 1 = 3.3 V
This pin can also be connected to a resistor divider between VDCDC1 and GND. In this case the output
voltage of the DCDC1 converter can be set in a range from 0.6 V to VINDCDC1
DEFDCDC2
22
I
Input signal indicating default VDCDC2 voltage, 0=1.8V, 1=2.5V
This pin can also be connected to a resistor divider between VDCDC2 and GND. In this case the output
voltage of the DCDC2 converter can be set in a range from 0.6 V to VINDCDC2.
9
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