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参数资料
| 型号： | TPS65073TRSLRQ1 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | POWER SUPPLY SUPPORT CKT, PQCC48 |
| 封装： | 6 X 6 MM, 0.4 MM PITCH, PLASTIC, QFN-48 |
| 文件页数： | 6/90页 |
| 文件大小： | 1375K |
| 代理商： | TPS65073TRSLRQ1 |
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SLVSAP7 – JANUARY 2011
www.ti.com
PIN FUNCTIONS (continued)
PIN
I/O
DESCRIPTION
NAME
NO.
Analog input2 for A/D converter TPS65070, TPS65073, TPS650731, TPS650732 only:
AD_IN2
44
I
(TSX2)
Input 2 to the x-plate for the touch screen
Analog input3 for A/D converter TPS65070, TPS65073, TPS650731, TPS650732 only:
AD_IN3
45
I
(TSY1)
Input 1 to the y-plate for the touch screen
Analog input4 for A/D converter TPS65070, TPS65073, TPS650731, TPS650732 only:
AD_IN4
46
I
(TSY2)
Input 2 to the y-plate for the touch screen
Connect a 10mF bypass cap from this pin to GND. This pin can optionally be used as a reference output
BYPASS
41
O
(2.26 V). The maximum load on this pin is 0.1mA.
Connect a 2.2mF bypass cap from this pin to GND. The pin is connected to an internal LDO providing the
INT_LDO
48
O
power for the touch screen controller (TSREF).
Open drain interrupt output. An interrupt can be generated upon:
A touch of the touch screen
INT
40
O
Voltage applied or removed at pins AC or USB
PB_IN actively pulled low (optionally actively pulled high)
The output is actively pulled low if the interrupt is active. The output goes high after the Bit causing the
interrupt in register INT has been read. The interrupt sources can be masked in register INT, so no interrupt
is generated and pin INT is pulled high with its external pull-up resistor.
CONVERTERS:
VINDCDC1/2
21
I
Input voltage for DCDC1 and DCDC2 step-down converter. This pin must be connected to the SYS pin.
Feedback voltage sense input. For the fixed voltage option, this pin must directly be connected to Vout1, for
VDCDC1
19
I
the adjustable version, this pin is connected to an external resistor divider.
L1
20
O
Switch Pin for DCDC1. Connect to Inductor
EN_DCDC1
14
I
Enable Input for DCDC1, active high
VDCDC2
23
I
Feedback voltage sense input, connect directly to Vout2
DEFDCDC2
18
I
Select Pin of DCDC2 output voltage.
L2
22
O
Switch Pin of DCDC2. Connect to Inductor.
EN_DCDC2
15
I
Enable Input for DCDC2, active high
VINDCDC3
32
I
Input voltage for DCDC3 step-down converter. This pin must be connected to the SYS pin.
VDCDC3
29
I
Feedback voltage sense input, connect directly to Vout3
DEFDCDC3
17
I
Select Pin of DCDC3 output voltage.
L3
31
O
Switch Pin of DCDC3. Connect to Inductor.
EN_DCDC3
16
I
Enable Input for DCDC3, active high
PGND3
30
Power GND for DCDC3. Connect to PGND (PowerPAD)
AGND
42
Analog GND, connect to PGND (PowerPAD)
VINLDO1/2
3
I
Input voltage for LDO1 and LDO2
VLDO1
4
O
Output voltage of LDO1
VLDO2
2
O
Output voltage of LDO2
L4
37
I
Switch Pin of the white LED (wLED) boost converter. Connect to Inductor and rectifier diode.
FB_wLED
38
I
Feedback input for the boost converter's output voltage.
Connect a resistor from this pin to GND to set the full scale current for Isink1 and Isink2 with Bit Current
Iset1
Level in register WLED_CTRL0 set to 1.
35
I
(AD_IN6)
Analog input6 for the A/D converter.
Connect a resistor from this pin to GND to set the full scale current for Isink1 and Isink2 with Bit Current
Iset2
Level in register WLED_CTRL0 set to 0.
36
I
(AD_IN7)
Analog input7 for the A/D converter.
Isink1
34
I
Input to the current sink 1. Connect the cathode of the LEDs to this pin.
Isink2
33
I
Input to the current sink 2. Connect the cathode of the LEDs to this pin.
Enable input for TPS6507x. When pulled LOW, the DCDC converters and LDOs start with the sequencing
PB_IN
25
I
as programmed internally. Internal 50k
Ω pull-up resistor to AVDD6
14
Copyright 2011, Texas Instruments Incorporated
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