參數(shù)資料
型號： TPS61062YZF
廠商： Texas Instruments, Inc.
英文描述： Male Bullet Solderless Terminal; Wire Size (AWG):16-14; Insulator Color:Blue; Leaded Process Compatible:No; Peak Reflow Compatible (260 C):No RoHS Compliant: No
中文描述： 恒定電流LED驅(qū)動器，帶有數(shù)字和PWM亮度控制
文件頁數(shù)： 4/22頁
文件大?。?/td> 609K
代理商： TPS61062YZF
www.ti.com
DISSIPATION RATINGS
RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
V
in
= 3.6 V, EN = V
IN
, T
A
= –40
°
C to 85
°
C, typical values are at T
A
= 25
°
C (unless otherwise noted)
TPS61060
TPS61061
TPS61062
SLVS538–NOVEMBER 2004
T
≤
25
°
C
POWER RATING
370 mW
1.6W
454 mW
909 mW
T
= 70
°
C
POWER RATING
204 mW
916mW
250 mW
500mW
T
= 85
°
C
POWER RATING
148 mW
666mW
181 mW
363 mW
PACKAGE
R
θ
JA
QFN
(1)
QFN
(2)
CSP
(3)
CSP
(4)
270
°
C/W
60
°
C/W
220
°
C/W
110
°
C/W
(1)
(2)
(3)
(4)
Soldered PowerPAD on a standard 2-layer PCB without vias for thermal pad.
Soldered PowerPAD on a standard 4-layer PCB with vias for thermal pad.
R
θ
is based on a 1-layer PCB according to JEDEC standard.
R
is based on a 2-layer PCB according to JEDEC standard. Refer to application section on how to
improve thermal resistance R
θ
JA
.
MIN
2.7
TYP
MAX
6.0
UNIT
V
μH
μF
μF
°
C
°
C
V
I
L
C
I
C
O
T
A
T
J
Input voltage range
Inductor
(1)
Input capacitor
(1)
Output capacitor
(1)
Operating ambient temperature
Operating junction temperature
22
1
1
0.22
-40
-40
85
125
(1)
Refer to application section for further information
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
V
IN
I
Q
I
SD
V
UVLO
V
HYS
ENABLE AND ILED
V
EN
V
EN
R
EN
t
shtdn
t
PWML
V
ILED
V
ILED
I
ILED
Input voltage range
Operating quiescent current into Vin
Shutdown current
Undervoltage lockout threshold
Undervoltage lockout hysteresis
2.7
6.0
V
Device not switching
EN = GND
V
IN
falling
1
mA
μA
V
mV
1
10
1.8
1.65
50
Enable high-level voltage
Enable low-level voltage
Enable pulldown resistor
Enable-to-shutdown delay
(1)
PWM low-level signal time
(1)
ILED high-level voltage
ILED low-level voltage
ILED input leakage current
DAC resolution
Increase feedback voltage one step
Decrease feedback voltage one step
Delay time between up/down steps
Digital programming off, VFB=500mV
V
IN
= 2.7 V to 6.0 V
V
IN
= 2.7 V to 6.0 V
1.2
V
V
k
ms
ms
V
V
μA
mV
us
us
us
us
0.4
200
300
EN = high to low
PWM signal applied to EN
V
IN
= 2.7 V to 6.0 V
V
IN
= 2.7 V to 6.0 V
ILED = GND or VIN
5 Bit
ILED = high to low
ILED = high to low
ILED = low to high
ILED = high to low
50
25
1.2
0.4
0.1
15.6
3
tup
tdown
tdelay
toff
1
75
180
1.5
720
300
(1)
A PWM low signal applied to EN for a period of time (
≥
25 ms) could cause a device shutdown. After a period of
≥
50 ms the device
definitely enters shutdown mode.
4
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