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参数资料
| 型号： | TB7004FL |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC56 |
| 封装： | 8 X 8 MM, PLASTIC, QFN-56 |
| 文件页数： | 12/16页 |
| 文件大小： | 264K |
| 代理商： | TB7004FL |
TB7004FL
2008-05-23
5
Electrical Characteristics
(VCIN = 12 V, VGIN = 5 V, VDISBL# = 12 V, Ta = 25°C, unless otherwise specified)
Characteristics
Symbol
Pin
Test Condition
Min
Typ.
Max
Unit
Power supply
Operating input voltage
VIN (OPR)
VIN
19
V
Operating input voltage
VCIN (OPR)
VCIN
10
12
14
V
Quiescent current
ICIN (OFF)
VCIN
VDISBL# = 0, VPWM = 0
1.3
mA
Operating VGIN current
IGIN (OPR)
VGIN
fC = 1 MHz, duty = 10%
60
mA
Undervoltage lockout threshold
VUVLO
VCIN
6.5
7.2
7.9
V
Undervoltage lockout hysteresis
Vhys-UVLO
VCIN
2.0
V
PWM signal input
PWM input rising threshold
VH (PWM)
PWM
3.2
3.5
3.8
V
PWM input falling threshold
VL (PWM)
PWM
1.3
1.5
1.7
V
PWM input resistance
RPWM
PWM
VPWM = 5 V
33
50
77
k
Ω
3-state window
VW (PWM)
PWM
VL (PWM)
VH (PWM)
V
3-state shutdown hold-off time
thold
PWM
VPWM = VW (PWM)
200
(Note 2)
ns
DISBL# signal input
DISBL# input rising threshold
VH (DISBL#)
DISBL#
3.2
3.5
3.8
V
DISBL# input falling threshold
VL (DISBL#)
DISBL#
1.3
1.5
1.7
V
DISBL# input current
IDISBL#
DISBL#
VDISBL# = 0
5.0
μA
REG5V output
REG5V output voltage
VOUT(REG5V)
REG5V
IREG5V = 10 mA
4.75
5.0
5.25
V
Line regulation
Reg
line
REG5V
IREG5V = 10 mA,
VCIN = 10 to 14 V
20
mV
Load regulation
Reg
load
REG5V
IREG5V = 0 to 10 mA
20
mV
Thermal shutdown
Thermal shutdown threshold
Ttsdn
165
°C
Thermal shutdown hysteresis
Thys - tsdn
15
(Note 2)
°C
THDN output low voltage
VOUT (THDN)
THDN
ITHDN = 2 mA
0.4
V
THDN sink current
ITHDN
THDN
5
mA
Note 2: Design target only. Not 100% tested in production.
Note 3: Don’t use the TB7004FL after thermal shutdown is tripped, because the thermal shutdown circuitry operates
beyond the rated absolute maximum temperature. The thermal shutdown circuitry cannot always protect the
device from failure. The device may be permanently damaged before thermal shutdown is tripped, depending
on usage conditions. Refer to the description of thermal shutdown on page 13.
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