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參數(shù)資料
| 型號： | UCC2626N |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Very low drop voltage regulators with inhibit |
| 中文描述： | 直流電機(jī)控制器/驅(qū)動器 |
| 文件頁數(shù)： | 5/19頁 |
| 文件大小： | 336K |
| 代理商： | UCC2626N |
SLUS318B
–
APRIL 1999
–
REVISED JANUARY 2002
5
www.ti.com
electrical characteristics over recommended operating conditions, VCC = 12 V; CT = 1 nF,
R_TACH = 250 k
, C_TACH = 100 pF, T
A
= T
J
, T
A
=
–
40
°
C to 85
°
C for the UCC2626, and 0
°
C to 70
°
C
for the UCC3626 (unless otherwise noted)
hall buffer inputs
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
High-level input voltage
HALLA, HALLB, HALLC
1.7
1.9
2.1
V
Hysteresis
HALLA, HALLB, HALLC
0.6
1.0
V
μ
A
Input current
0V < VIN < 5 V
–
25
oscillator
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Frequency
RTACH = 250 k
, CT = 1nF
12 V < VCC < 14.5 V
9.0
10.0
11.0
kHz
Frequency change with voltage
3%
CT peak voltage
7.25
7.5
7.75
V
CT peak-to-valley voltage
4.75
5.0
5.25
V
SYNCH pin minimum pulse width
500
ns
tachometer
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
High-level output voltage/VREF
IOUT =
–
10
μ
A
IOUT = 10
μ
A
IOUT =
–
100
μ
A
IOUT = 100
μ
A
99%
100%
Low-level output voltage
0
20
mV
k
k
V
High-level on-resistance
1
1.5
Low-level on-resistance
1
1.5
High-level ramp threshold voltage
2.5
Ramp voltage
2.375
2.500
2.625
V
μ
A
CTACH charge current
RTACH = 49.9 k
See Note 1
48
51
53
On time accuracy
On-time accuracy
UCC3626
–
3%
3%
UCC2626
See Note 1
–
4%
3%
direction output
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
High-level output voltage
IOUT =
–
100
μ
A
IOUT = 100
μ
A
4.5
5.2
V
Low-level output voltage
0
0.5
V
output
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Maximum duty cycle
100%
Low-level output voltage
le el o tp t oltage
IOUT = 2 mA
IOUT = 100
μ
A
IOUT =
–
2 mA
IOUT =
–
100
μ
A
CI = 10 pF
0.0
0.1
0.5
V
0.0
0.1
V
High level output voltage
High-level output voltage
4.0
4.8
5.2
V
4.7
5.2
V
Rise and fall time
100
ns
NOTE 1: tON is calculated using the formula t
ON
C
TACH
V
HI
V
LO
I
CHARGE
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