參數(shù)資料
型號： L5994A
廠商： STMICROELECTRONICS
元件分類： 穩(wěn)壓器
英文描述： 1 A DUAL SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PQFP32
封裝： TQFP-32
文件頁數(shù)： 20/26頁
文件大?。?/td> 322K
代理商： L5994A
Obsolete
Product(s)
- Obsolete
Product(s)
3/26
L5994 - L5994A
BLOCK DIAGRAM
ELECTRICAL CHARACTERISTICS (Vin = 12V; Tj = 25°C; Vosc = GND; unless otherwise specified.)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
DC CHARACTERISTIC
Vin
Input supply voltage
V1out,4V
4.75
25
V
I2
Operating quiescent current
R1GATE= R2GATE = OPEN
H1GATE = H2GATE = OPEN
RUN1= RUN2 = SREG5
(DRIVERS OFF)
1.1
1.4
mA
I2
Stand by current
RUNQ=RUN2=GND
NOSKIP=GND
Vin=12V
Vin=20V
50
60
90
100
A
SECTION 1 PWM CONTROLLER
V1out
V1SNS feedback voltage
Vin = 5V to 20V
NOSKIP = REG5
Vi1sns-Vv1sns = 0 to 40mA
1.81
1.89
1.97
V
V6-V5
Overcurrent Threshold current
VSOFT1 = 3.1V
37
50
63
mV
V6-V5
Pulse skipping mode threshold
voltage
Vin > 6.8V
Vin < 5.8V
13
6.5
mV
SLOPE
+
-
+
-
+
-
∑
ERROR SUMMING
I1SNS
V1SNS
6
5
VREF
7
COMP1
1
32
31
H1STRAP
H1GATE
H1SRC
30
R1GATE
Hside
Lside
LOGIC
AND
SHOOT-
THROUGH
CONTROL
OVER CURRENT
COMPARATOR
ZERO CROSSING
COMPARATOR
PULSE SKIPPING
COMPARATOR
+
-
+
-
+
-
SOFT
I1SNS
V1SNS
8
SOFT1
SLOPE
+
-
+
-
+
-
∑
ERROR SUMMING
I2SNS
V2SNS
19
20
VREF
18
COMP2
24
25
26
H2STRAP
H2GATE
H2SRC
27
28
R2GATE
PGND
Hside
Lside
LOGIC
AND
SHOOT-
THROUGH
CONTROL
OVER CURRENT
COMPARATOR
ZERO CROSSING
COMPARATOR
PULSE SKIPPING
COMPARATOR
+
-
+
-
+
-
SOFT
I2SNS
V2SNS
17
SOFT2
LINEAR
REGULATOR
SWITCH
COMPARATOR
V5SW
4.7V
W5SW
PREG5
29
SREG5
3
4
2
VIN
VREF
VREF BUFFER
OVERVOLT
COMPARATOR
UNDERVOLT
COMPARATOR
POWER MANAGEMENT
&
SYSTEM SUPERVISOR
12
VREF
13
SGND
+
-
16
11
10
14
9
RUN2
RUN1 PWROK1
NOSKIP
CRST
VDRLIN
21
+
-
VFBLIN
22
VREF
OSCILLATOR &
SYNCHRONIZATION
OSC
15
REG12
LDO
D98IN864A
+
-
REG5
PREG5
23
PWROK2
相關(guān)PDF資料
PDF描述
L5994 1 A DUAL SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PQFP32
L6206PD013TR STEPPER MOTOR CONTROLLER, 5.6 A, PDSO36
L6207PD013TR STEPPER MOTOR CONTROLLER, 5.6 A, PDSO36
L6219DSA STEPPER MOTOR CONTROLLER, 1 A, PDSO24
L6228PDTR STEPPER MOTOR CONTROLLER, 2.8 A, PDSO36
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L5995 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current-Mode SMPS Controller
L5996 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5 BIT DYNAMIC DAC CONTROLLER FOR MOBILE CPU
L-59BL/1EGW 制造商:Kingbright Corporation 功能描述: 制造商:Kingbright Corporation 功能描述:LED 5MM RED/GREEN 40MCD/60MCD 制造商:Kingbright Corporation 功能描述:LED, 5MM, RED/GREEN, 40MCD/60MCD 制造商:Kingbright Corporation 功能描述:LED, 5MM, RED/GREEN, 40MCD/60MCD, LED Colour:Red, Green, Height:7.24mm, Width:7. 制造商:Kingbright Corporation 功能描述:Red/grn r/a cbi,5mm,L-59BL/1EGW
L-59BL/1EYW 制造商:Kingbright Corporation 功能描述: 制造商:Kingbright Corporation 功能描述:LED 5MM RED/YELLOW 40MCD/40MCD 制造商:Kingbright Corporation 功能描述:LED, 5MM, RED/YELLOW, 40MCD/40MCD 制造商:Kingbright Corporation 功能描述:LED, 5MM, RED/YELLOW, 40MCD/40MCD, LED Colour:Red, Yellow, Height:7.24mm, Width:
L-59BL/1GEW 制造商:Kingbright Corporation 功能描述:
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*