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TPS54240DGQR 其他数据使用手册 - TI(德州仪器)
制造商:
TI(德州仪器)
分类:
DC/DC转换器
封装:
PowerPad-MSOP-10
描述:
TEXAS INSTRUMENTS TPS54240DGQR 直流-直流开关降压, 逐步递降稳压器, 可调, 3.5V-42V输入, 800mV-39V/2.5A输出, 2.5MHz, MSOP-10 新
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原理图在P1P13P18P19P20
封装尺寸在P44P46P47
标记信息在P44
封装信息在P43P44P45P46P47
技术参数、封装参数在P4
应用领域在P1
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TPS54240DGQR数据手册
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TPS54240
SLVSAA6B –APRIL 2010–REVISED NOVEMBER 2014
www.ti.com
6.5 Electrical Characteristics
T
J
= –40°C to 150°C, VIN = 3.5 to 42 V (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SUPPLY VOLTAGE (VIN PIN)
Operating input voltage 3.5 42 V
Internal undervoltage lockout threshold No voltage hysteresis, rising and falling 2.5 V
Shutdown supply current EN = 0 V, 25°C, 3.5 V ≤ VIN ≤ 42 V 1.3 4
μA
Operating : nonswitching supply current VSENSE = 0.83 V, VIN = 12 V, 25°C 138 200
ENABLE AND UVLO (EN PIN)
Enable threshold voltage No voltage hysteresis, rising and falling, 25°C 1.15 1.25 1.36 V
Enable threshold +50 mV –3.8
Input current μA
Enable threshold –50 mV –0.9
Hysteresis current –2.9 μA
VOLTAGE REFERENCE
T
J
= 25°C 0.792 0.8 0.808
Voltage reference V
0.784 0.8 0.816
HIGH-SIDE MOSFET
VIN = 3.5 V, BOOT-PH = 3 V 300
On-resistance mΩ
VIN = 12 V, BOOT-PH = 6 V 200 410
ERROR AMPLIFIER (EA)
Input current 50 nA
Error amplifier transconductance (g
M
) –2 μA < I
COMP
< 2 μA, V
COMP
= 1 V 310 μS
–2 μA < I
COMP
< 2 μA, V
COMP
= 1 V,
Error amplifier transconductance (g
M
)
70 μS
during slow start
V
VSENSE
= 0.4 V
Error amplifier dc gain V
VSENSE
= 0.8 V 10,000 V/V
Error amplifier bandwidth 2700 kHz
Error amplifier source/sink V
(COMP)
= 1 V, 100 mV overdrive ±27 μA
COMP to switch current
10.5 A/V
transconductance
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