參數(shù)資料
型號: TPS61059DRC
廠商: Texas Instruments, Inc.
英文描述: SYNCHRONOUS BOOST CONVERTER WITH DOWN MODE HIGH POWER WHITE LED DRIVER
中文描述: 同步升壓轉(zhuǎn)換器斷電模式高功率白光LED驅(qū)動
文件頁數(shù): 3/30頁
文件大?。?/td> 1684K
代理商: TPS61059DRC
www.ti.com
ELECTRICAL CHARACTERISTICS
V
IN
= 3.6 V, I
LED
= 500 mA, EN = V
IN
, L = 4.7 μH, C
O
= 3x 22 μF, T
A
= –40
°
C to 85
°
C, typical values are at T
A
= 25
°
C (unless
otherwise noted)
TPS61058
TPS61059
SLVS572B–APRIL 2005–REVISED DECEMBER 2005
DC/DC STAGE
PARAMETER
TEST CONDITIONS
V
O
> 2.0 V @ I
LED
= 50 mA
MIN
2.7
2.5
5.9
490
550
900
1200
TYP
MAX
5.5
5.5
6.3
510
750
1300
1800
UNIT
V
V
V
mV
kHz
mA
mA
mA
m
m
V
IN
V
OUT
V
OVP
V
FB
f
I
SW
Input voltage range
TPS61058/9 output voltage range
Output overvoltage protection
TPS61058/9 feedback voltage
Oscillator frequency
Switch current limit (TPS61058)
Switch current limit (TPS61059)
Pre-charge current
SWN switch on resistance
SWP switch on resistance
Total accuracy (including line and load regulation)
6.1
500
650
1100
1500
V
O
= 3.3 V
V
O
= 3.3 V
V
O
= 2.5 V, T
A
= -10
°
C to 85
°
C
V
O
= 3.3V
V
O
= 3.3 V
84
r
DS(on)
260
290
-3%
3%
I
= 0 mA, V
= 5.0 V,
Device switching at 650 kHz
EN = GND, T
A
= 25
°
C
I
Q
Quiescent current
5.5
mA
I
(SD)
CONTROL STAGE
Shutdown current
0.1
1
μA
IOK switch on-resistance
IOK output low current
IOK output leakage current
EN low-level input voltage
EN high-level input voltage
EN input leakage current
EN pull-down resistance
Overtemperature protection
Overtemperature hysteresis
V
O
= 5.0 V, I
IOK
= 100 μA
0.6
0.8
100
0.01
1
k
μA
μA
V
V
μA
k
°
C
°
C
300
0.1
0.4
V
IOK
= 7 V
V
(IL)
V
(IH)
I
(I)
1.4
Input tied to GND
0.01
400
140
20
0.1
3
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