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參數(shù)資料
| 型號(hào)： | US3012ACW |
| 廠(chǎng)商： | Unisem Group |
| 英文描述： | 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC |
| 中文描述： | 5位可編程同步降壓控制器芯片 |
| 文件頁(yè)數(shù)： | 2/11頁(yè) |
| 文件大?。?/td> | 75K |
| 代理商： | US3012ACW |
4-2
Rev. 1.0
5/6/98
US3012/3012A
ELECTRICAL SPECIFICATIONS
Unless otherwise specified ,these specifications apply over ,V12 = 12V, V5 = 5V and Ta=0 to 70
°
C. Typical values
refer to Ta =25
°
C. Low duty cycle pulse testing are used which keeps junction and case temperatures equal to the
ambient temperature.
ABSOLUTE MAXIMUM RATINGS
V5 supply Voltage ........................................... 7V
V12 Supply Voltage ............................................ 20V
Storage Temperature Range ................................. -65 TO 150
°
C
Operating Junction Temperature Range .......... 0 TO 125
°
C
PACKAGE INFORMATION
20 PIN WIDE BODY PLASTIC SOIC (W)
θ
JA
=85
°
C/W
PARAMETER
VID Section
DAC output voltage
(note 1)
DAC Output Line Regulation
DAC Output Temp Variation
VID Input LO
VID Input HI
VID input internal pull-up
resistor to V5
Power Good Section
Under voltage lower trip point
Under voltage upper trip point
UV Hysterises
Over voltage upper trip point
Over voltage lower trip point
OV Hysterises
Power Good Output LO
Power Good Output HI
Soft Start Section
Soft Start Current
SYM TEST CONDITION
MIN
TYP
MAX
UNITS
0.99Vs
Vs
1.01Vs
V
0.1
0.5
0.4
%
%
V
V
k
2
27
Vout ramping down
Vout ramping up
0.89Vs
0.90Vs
0.92Vs
.02Vs
1.10Vs
1.08Vs
.02Vs
0.91Vs
V
V
V
V
V
V
V
V
.015Vs
1.09Vs
.025Vs
1.11Vs
Vout ramping up
Vout ramping down
.015Vs
.025Vs
0.4
RL=3mA
RL=5K pull up to 5V
4.8
CS+ =0V , CS- =5V
10
uA
4
3
2
1
7
6
5
18
19
20
TOP VIEW
11
13
12
14
10
15
9
16
8
17
SS
Gnd
Vfb
V12
HDrv
NC
D0
D1
D2
D3
Ct
En
PGd
CS+
CS-
V5
NC
D4
LDrv
PGnd
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| US3012CW | 制造商:UNISEM 制造商全稱(chēng):UNISEM 功能描述:5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC |
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| US3021B | 制造商:UNISEM 制造商全稱(chēng):UNISEM 功能描述:5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS TRIPPLE LDO CONTROLLER |
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