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參數(shù)資料
| 型號： | TPS5602DBT |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | DUAL, FAST, HIGH EFFICIENCY CONTROLLER FOR DSP POWER |
| 中文描述： | 雙通道，快速，高效控制器的DSP電源 |
| 文件頁數(shù)： | 3/24頁 |
| 文件大?。?/td> | 739K |
| 代理商： | TPS5602DBT |
TPS5602
DUAL, FAST, HIGH EFFICIENCY CONTROLLER FOR DSP POWER
SLVS217 – JUNE 1999
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Terminal Functions
TERMINAL
NAME
COMP
CT
GND
INV1
INV2
LH1
LH2
LL1
LL2
NC
OUT1_d
OUT2_d
OUT1_u
OUT2_u
OUTGND1
OUTGND2
REF
REG5V_IN
SOFTSTART1
SOFTSTART2
STBY1
STBY2
TRIP1
TRIP2
VCC
Vref5
VCCSENSE
I/O
DESCRIPTION
NO.
12
5
7
1
15
30
16
28
18
I/O
I/O
Voltage monitor comparator input
The oscillator frequency external capacitor connection
Control GND
CH1 hysteretic comparator inverting input
CH2 hysteretic comparator inverting input
CH2 high-side gate drive boost capacitor input
CH1 high-side gate drive boost capacitor input
CH1 high-side drive and current protection
CH2 high-side drive and current protection
I
I
I/O
I/O
I/O
I/O
2, 4, 6, 14
27
19
29
17
26
20
8
21
3
13
9
10
25
23
11
22
24
I/O
O
O
O
CH1 low-side gate drive output
CH2 low-side gate drive output
CH1 high-side switch output
CH2 high-side switch output
Output GND 1
Output GND 2
1.185-V reference voltage output
External 5-V input
CH1 soft start control external capacitor connection
CH2 soft start control external capacitor connection
CH1 standby control
CH2 standby control
CH1 output current control input
CH2 output current control input
Supply voltage input
5-V internal regulator output
Supply voltage sense input
O
I
I/O
I/O
I
I
I
I
I
O
I
detailed description
vref (1.185 V)
The reference voltage is used for the output voltage setting and the voltage protection (COMP).
vref (5 V)
An internal linear voltage regulator offers a fixed 5-V voltage as the bootstrap voltage so that the design for the
bootstrap is much easier. The tolerance is 6%. The extra current capability can also be used to power external
circuitry.
5-V switch
If the internal 5-V switch senses a 5-V input from REG5V pin, the internal 5-V linear regulator will be
disconnected from the MOSFET drivers. The external 5-V will be used for the low-side driver and the high-side
bootstrap, thus increasing the efficiency.
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