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參數(shù)資料
| 型號： | IRS2541PbF |
| 廠商： | International Rectifier |
| 英文描述： | LED BUCK REGULATOR CONTROL IC |
| 中文描述： | 發(fā)光二極管降壓穩(wěn)壓器控制IC |
| 文件頁數(shù)： | 4/14頁 |
| 文件大小： | 456K |
| 代理商： | IRS2541PBF |
IRS254(0,1)(S)PbF
Electrical Characteristics
V
CC
= V
BS
= V
BIAS
= 14 V +/- 0.25 V, C
LO
=C
HO
=1000 pF, C
VCC
=C
VBS
=0.1 μF, T
A
=25 °C unless otherwise specified.
Symbol
Definition
www.irf.com Page 4
Min
Typ Max
Units Test Conditions
Supply Characteristics
V
CC
supply undervoltage positive going
threshold
V
CC
supply undervoltage negative going
threshold
V
CCUV+
8.0
9.0
10.0
V
CC
rising from 0 V
V
CCUV-
6.5
7.5
8.5
V
CC
falling from 14 V
V
UVHYS
V
CC
supply undervoltage lockout hysteresis
1.0
1.2
2.0
V
I
QCCUV
UVLO mode quiescent current
---
50
150
μ
A
V
CC
=6 V
I
QCCENN
Diesabled mode quiescent current
---
1.0
2.0
EN>V
ENTH+
I
QCC
Quiescent V
CC
supply current
---
1.0
2.0
I
FB
= 1 V
I
CC50k
V
CC
supply current, f = 50 kHz
---
2.0
3.0
mA
Duty Cycle = 50%
f = 50 kHz
V
CLAMP
V
CC
zener clamp voltage
14.6
15.6
16.6
V
I
CC
= 10 mA
Floating Supply Characteristics
I
QBS0
Quiescent V
BS
supply current
---
1.0
2.0
V
HO
= V
S
I
QBS1
Quiescent V
BS
supply current
---
2.0
3.0
mA
I
FB
= 0 V
V
BSUV+
V
BS
supply undervoltage positive going
threshold
V
BS
supply undervoltage negative going
threshold
6.5
7.5
8.5
V
BSUV-
6.0
7.0
8.0
V
I
LK
Offset supply leakage current
---
1
50
μ
A
IRS2540:V
B
=V
S
=200 V
IRS2541:V
B
=V
S
=600 V
Current Control Operation
V
ENNTH+
ENN pin positive threshold
2.5
2.7
3.0
V
ENNTH-
ENN pin negative threshold
1.7
2.0
2.3
V
V
0.5
0.5 V voltage reference (die level test)
490
500
510
V
IFBTH
IFB pin threshold
455
500
540
mV
f
Maximum frequency
---
500
---
kHz
Gate Driver Output Characteristics
V
OL
Low level output voltage (HO or LO)
---
COM
---
V
HL
High level output voltage (HO or LO)
---
V
CC
---
V
t
r
Turn-on rise time
---
50
120
t
f
Turn-off fall time
---
30
50
ns
I
O+/-
Output source/sink short circuit pulsed current
---
0.5/0.7
---
A
DT
Deadtime
---
140
---
t
LO,ON
Delay between V
IFB
>V
IFBTH
and LO turn-on
---
320
---
t
LO,OFF
Delay between V
IFB
<V
IFBTH
and LO turn-off
---
180
---
t
HO,ON
Delay between V
IFB
<V
IFBTH
and HO turn-on
---
320
---
t
HO,OFF
Delay between V
IFB
>V
IFBTH
and HO turn-off
---
180
---
ns
I
FB
= 50 kHz square
wave, 200 mV pk-pk
DC offset = 400 mV
Duty Cycle = 50%
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| IRS2548 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SMPS/LED DRIVER PFC + HALF-BRIDGE CONTROL IC |
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