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參數(shù)資料
| 型號： | SP6132CU |
| 英文描述： | Wide Input, 300KHz Synchronous PWM Controller |
| 中文描述： | 寬輸入，300kHz的同步PWM控制器 |
| 文件頁數(shù)： | 3/14頁 |
| 文件大?。?/td> | 314K |
| 代理商： | SP6132CU |
3
Date: 8/4/04
SP6132 Wide Input, 300KHz Synchronous PWM Controller Copyright 2004 Sipex Corporation
PARAMETER
TIMERS: SOFTSTART
SS Charge Current:
SS Discharge Current:
PROTECTION: SHORT CIRCUIT & THERMAL
Short Circuit Threshold Voltage
Hiccup Timeout
Number of Allowable Clock Cycles
at 100% Duty Cycle
Minimum GL Pulse After 20 Cycles
Thermal Shutdown Temperature
Thermal Recovery Temperature
Thermal Hysteresis
OUTPUT: NFET GATE DRIVERS
GH & GL Rise Times
GH & GL Fall Times
GL to GH Non Overlap Time
SWN to GL Non Overlap Time
GH & GL Pull Down Resistance
Driver Pull Down Resistance
Driver Pull Up Resistance
MIN
TYP
MAX
UNITS
CONDITIONS
10
μ
A
mA
1
Fault Present, SS = 0.2V
0.2
0.25
200
20
0.3
V
Measured V
REF
(0.8V) - V
FB
V
FB
= 0.5V
V
FB
= 0.7V
ms
Cycles
0.5
145
135
10
Cycles
°
C
°
C
°
C
V
FB
= 0.7V
35
30
45
25
50
1.5
2.5
50
40
70
40
85
1.9
3.0
ns
ns
ns
ns
K
Measured 10% to 90%
Measured 90% to 10%
GH & GL Measured at 2.0V
Measured SWN = 100mV to GL = 2.0V
15
Note 1
Note 1
ELECTRICAL SPECIFICATIONS: Continued
Unless otherwise specified: 0
°
C < T
AMB
< 70
°
C, 4.5V < V
CC
< 5.5V, BST=V
CC
,SWN = GND = 0V, UVIN = 3.0V, CV
CC
= 10
μ
F,
C
COMP
= 0.1
μ
F, CGH = CGL = 3.3nF, C
SS
= 50nF, Typical measured at V
CC
=5V. The
denotes the specifications which
apply over the -40
°
C to 85
°
C temperature range, unless otherwise specified.
PIN DESCRIPTION
PIN #
1
PIN NAME DESCRIPTION
V
CC
Bias Supply Input. Connect to external 5V supply. Used to power internal circuits and
low side gate driver.
GL
High current driver output for the low side NFET switch. It is always low if GH is high or
during a fault. Resistor pull down ensure low state at low voltage.
GND
Ground Pin. The control circuitry of the IC and lower power driver are referenced to this
pin. Return separately from other ground traces to the (-) terminal of C
OUT
.
V
FB
Feedback Voltage and Short Circuit Detection pin. It is the inverting input of the Error
Amplifier and serves as the output voltage feedback point for the Buck Converter. The
output voltage is sensed and can be adjusted through an external resistor divider.
Whenever V
drops 0.25V below the positive reference, a short circuit fault is detected
and the IC enters hiccup mode.
COMP
Output of the Error Amplifier. It is internally connected to the inverting input of the PWM
comparator. An optimal filter combination is chosen and connected to this pin and either
ground or V
FB
to stabilize the voltage mode loop.
UVIN
UVLO input for V
voltage. Connect a resistor divider between V
IN
and UVIN to set
minimum operating voltage.
SS
Soft Start. Connect an external capacitor between SS and GND to set the soft start rate
based on the 10
μ
A source current. The SS pin is held low via a 1mA (min) current during
all fault conditions.
SWN
Lower supply rail for the GH high-side gate driver. Connect this pin to the switching node
at the junction between the two external power MOSFET transistors.
GH
High current driver output for the high side NFET switch. It is always low if GL is high or
during a fault. Resistor pull down ensure low state at low voltage.
BST
High side driver supply pin. Connect BST to the external boost diode and capacitor as
shown in the Typical Application Circuit on page 1. High side driver is connected between
BST pin and SWN pin.
2
3
4
5
6
7
8
9
10
相關PDF資料 |
PDF描述 |
|---|---|
| SP6132EB | Evaluation Board Manual |
| SP6132EU | Wide Input, 300KHz Synchronous PWM Controller |
| SP6132HV | High Voltage Synchronous Buck Controller |
| SP6133 | Evaluation Board Manual |
| SP6133_06 | Evaluation Board Manual |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SP6132CU/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Wide Input, 300KHz Synchronous PWM Controller |
| SP6132CU-L | 功能描述:開關變換器、穩(wěn)壓器與控制器 Wide Input, 300kHz Synchronous RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| SP6132CU-L/TR | 功能描述:開關變換器、穩(wěn)壓器與控制器 Wide Input, 300kHz Synchronous RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| SP6132EB | 功能描述:電壓模式 PWM 控制器 Dual Supply Sync Buck Controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| SP6132EU | 制造商:Exar Corporation 功能描述:SMPS Controller |
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