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參數(shù)資料
| 型號： | UCC28089DRB |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | PRIMARY-SIDE PUSH-PULL OSCILLATOR WITH DEAD-TIME CONTROL |
| 中文描述： | 一次側(cè)推拉振蕩器死區(qū)時間控制 |
| 文件頁數(shù)： | 5/19頁 |
| 文件大?。?/td> | 336K |
| 代理商： | UCC28089DRB |
SLUS623 SEPTEMBER 2004
5
www.ti.com
FUNCTIONAL BLOCK DIAGRAM
OUTPUT LOGIC
UCC28089
6
OUTB
7
OUTA
8
VDD
4
CS
2
DIS
1
SYNC
3
CT
5
GND
VDD
UVLO
VDD = 10.5/8.0 V
VDD
OVER
CURRENT
COMP
SS LATCH
0.725 V
SS
COMP
Q
Q
S
R
+
0.2V
56 STEP
START
DELAY
R
GO
7 STEP SOFT
START RAMP
REF
GO
VDD/5
S
Q
Q
R
CK
VDD/5
VDD/19.6
Q
_
Q
T
SOFTSTART & FAULT
OSCILLATOR
UDG-04101
PIN #
NAME
I/O
FUNCTION
1
SYNC
O
Active when OUTA and OUTB are active, logic LO at all other times such as during under-voltage
lock-out and over-current shutdown. When active, SYNC is logic HI (VDD) during the discharge time
of the oscillator and logic LO (GND) at all other times. The pulse occur during the dead time.
Separate oscillator timing capacitor discharge pin that allows the dead time to be externally
programmed.
Oscillator timing capacitor connection.
Current sense pin. An over current shutdown event is triggered when the voltage of this pin rises
above 0.75 V.
Ground pin. Analog and digital signals reference this pin and output drivers return current through
this pin
Driver output, capable of sinking 1 A and sourcing 0.5 A. OUTB signal alternates with OUTA.
Driver output, capable of sinking 1 A and sourcing 0.5 A. OUTA signal alternates with OUTB.
Power input connection for this device.
2
DIS
I
3
CT
I
4
CS
I
5
GND
6
7
8
OUTB
OUTA
VDD
O
O
I
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UCC28089DRBR | 制造商:Texas Instruments 功能描述:PRIMARY SIDE PUSH-PULL DRIVER WITH DEAD-TIME CONTROL - Tape and Reel |
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| UCC2808A-1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW POWER CURRENT MODE PUSH-PULL PWM |
| UCC2808A-1EP | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW POWER CURRENT MODE PUSH-PULL PWM |
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