參數(shù)資料
型號(hào)： UCD7230RGW
廠商： Texas Instruments, Inc.
英文描述： Digital Control Compatible Synchronous Buck Gate Drivers with Current Sense Conditioning Amplifier
中文描述： 數(shù)字控制兼容同步降壓門驅(qū)動(dòng)器，電流調(diào)節(jié)放大器檢測(cè)
文件頁數(shù)： 7/33頁
文件大?。?/td> 874K
代理商： UCD7230RGW
www.ti.com
UCD7230
SLUS741C–NOVEMBER 2006–REVISED MARCH 2007
ELECTRICAL CHARACTERISTICS (continued)
V
= P
VDD
= 12 V, 4.7-
μ
F from V
DD
to A
, 1
μ
F from P
VDD
to P
, 0.1
μ
F from CSBIAS to AGND, 0.22
μ
F from BST to
SW, T
A
J
= -40°C to +125°C, R
CS+
= 5 k
, R
DLY
= 50 k
over operating free-air temperature range (unless otherwise
noted).
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
CURRENT SENSE COMPARATOR (INPUT SENSE)
R
DLY
= 24.3 k
(CSBIAS-CS+)
R
DLY
= 49.9 k
(CSBIAS-CS+)
R
= 24.3 k
, IN rising to OUT1,
IN falling to OUT2, VDD = 6 V
R
= 49.9 k
, IN rising to OUT1,
IN falling to OUT2, VDD = 6 V
170
90
235
114
300
140
CS threshold
mV
120
CS blanking time
(2)
ns
230
R
DELAY
range
(2)
Propagation delay from CS+ to
OUT1
(2)
Propagation delay from CS+ to
CLF
(2)
CURRENT SENSE AMP
24.3
50.0
100.0
k
80
CS = threshold + 60mV
ns
70
I0 = OPEN; POS = NEG = 1.25 V;
measure AO - IO
I0 = FLOAT; V
= 1.26 V; V
NEG
=
1.25 V, R
POS
= R
NEG
= 0
POS = 1.25 V, NEG = 1.29 V,R =
(POS - NEG) / (I
POS
- I
NEG
)
V
CM(max)
is limited to (V
DD
-1.2V),
R
POS
V
= 1.2 V; V
NEG
= 1.3 V;
A0_I
SINK
= 250
μ
V
POS
=1.3 V; V
NEG
= 1.2 V; A0_
I
SOURCE
= 500
μ
I0 = FLOAT; V
POS
= V
NEG
= 0.8 V to
5.0 V, R
POS
= R
NEG
= 0
V
OO
Output offset voltage
-100
0
100
mV
Closed loop dc gain
46
48
50
V/V
Input impedance
5.5
8.3
12
k
V
CM
Input Common Mode Voltage Range
0
5.6
V
A0_Vol
Minimum Output Voltage
0.15
0.3
V
A0_Voh
Maximum Output Voltage
3
3.1
3.5
Input Bias Current, POS or NEG
-2
30
μ
A
ZERO CURRENT REFERENCE (IO)
Reference voltage
Input transition voltage
I
O
Output impedance
Measured at I0
With respect to IO reference
I
ZERO
= 0.6 V
0.54
10
10
0.6
60
15
0.66
120
21
V
mV
k
(2)
As designed and characterized. Not 100% tested in production.
7
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UCD7231 制造商:TI 制造商全稱:Texas Instruments 功能描述:Digital Control Compatible Synchronous-Buck Gate Driver With Current Sense and Fault Protection
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