参数资料
型号: TPS65148RHBR
厂商: TEXAS INSTRUMENTS INC
元件分类: 电源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32
封装: 5 X 5 MM, GREEN, PLASTIC, QFN-32
文件页数: 26/30页
文件大小: 947K
代理商: TPS65148RHBR
REG_FB
1
2
3
4
5
6
REG_O
REG_I
SUP
OPO
OPI
PowerPAD
-
Exposed ThermalDie
7
OPGND
8
VFLK
VDET
HVS
FREQ
EN
AGND
VIN
9
10
12
13
14
19
11
15
FB
17
18
19
20
21
22
RHVS
NC
PGND
SW
23
SW
24
GD
RE
VGHM
VGH
VDPM
NC
SS
AGND
COMP
32
31
29
28
27
25
30
26
XAO
www.ti.com
SLVS904A – MAY 2009 – REVISED JANUARY 2011
PIN ASSIGNMENT
TERMINAL FUNCTIONS
PIN
I/O
DESCRIPTION
NAME
NO.
REG_FB
1
I
Voltage regulator feedback pin.
REG_O
2
O
Voltage regulator output pin.
REG_I
3
I
Voltage regulator input pin.
SUP
4
I
Input supply pin for the gate voltage shaping and operational amplifier blocks. Also overvoltage
protection sense pin. SUP pin must be supplied by VS voltage.
OPO
5
O
VCOM Buffer output pin.
OPI
6
I
VCOM Buffer input pin.
OPGND
7
VCOM Buffer analog ground.
VFLK
8
I
Input pin for charge/discharge signal of VGHM. VFLK = 'low' discharges VGHM through RE pin.
XAO
9
O
Reset function output pin (open-drain). XAO signal is active low.
VDET
10
I
Reset function threshold pin. Connect a voltage divider to this pin to set the threshold voltage.
HVS
11
I
High Voltage Stress function logic input pin. Apply a high logic voltage to enable this function
FREQ
12
I
Boost converter frequency select pin. Oscillator is 630 kHz when FREQ is connected to GND and
1.2 MHz when FREQ is connected to VIN.
EN
13
I
Shutdown control input. Apply a logic high voltage to enable the device.
AGND
14, 26,
Analog ground.
exposed pad
VIN
15, 16
I
Input supply pin.
GD
17
O
Gate driver pin. Connect the gate of the boost converter's external input-to-output isolation switch to
this pin.
SW
18, 19
Switch pin of the boost converter.
PGND
20, 21
Power ground.
NC
22, 28
Not connected.
Copyright 2009–2011, Texas Instruments Incorporated
5
Product Folder Link(s) :TPS65148
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