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器件3D模型￥ 1.157
TPS2412PWR 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
DC/DC转换器
封装:
TSSOP-8
描述:
N1和的ORing电源导轨控制器 N1 and ORing Power Rail Controller
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P3Hot
典型应用电路图在P1P10P11P14P15
原理图在P9
封装尺寸在P20P22P23P24
焊盘布局在P18P25
标记信息在P20P21
封装信息在P19P20P21P22P23
技术参数、封装参数在P4
应用领域在P1P14P29
电气规格在P5
导航目录
TPS2412PWR数据手册
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C
+
-
+
-
A
GATE
HVUV
EN
HVUV
RSET
A
BYP
C
GND
EN
A
RSVD
EN
FAST
COMP.
T >135°C
V
(DD)
V
(DD)
V
(BIAS)
0.5V
3mV
10mV
10V
‘12: AMP
‘13:COMP
BIAS
and
Control
ChargePump
andBiasSupply
TPS2412
,
TPS2413
www.ti.com
SLVS728C –JANUARY 2007–REVISED NOVEMBER 2015
8.2 Functional Block Diagram
8.3 Feature Description
8.3.1 Definitions
The following descriptions refer to the pinout and the functional block diagram.
A, C: The A pin serves as the simulated diode anode and the C as the cathode. GATE is driven high when V
(AC)
exceeds 10 mV. Both devices provide a strong GATE pulldown when V
(AC)
is less than the programmable fast
turnoff threshold. The TPS2412 has a soft pulldown when V
(AC)
is less than 10 mV but above the fast turnoff
threshold.
Several internal comparator and amplifier circuits monitor these two pins. The inputs are protected from excess
differential voltage by a clamp diode and series resistance. If C falls below A by more than about 0.7 V, a small
current flows out of C. Protect the internal circuits with an external clamp if C can be more than 6 V lower than A.
The internal charge pump output, which provides bias power to the comparators and voltage to drive GATE, is
referenced to A. Some charge pump current appears on A due to this topology. The A and C pins should be
Kelvin connected to the MOSFET source and drain. A and C connections should also be short and low
impedance, with special attention to the A connection. Residual noise from the charge pump can be reduced with
a bypass capacitor at A if the application permits.
BYP: BYP is the internal charge pump output, and the positive supply voltage for internal comparator circuits and
GATE driver. A capacitor must be connected from BYP to A. While the capacitor value is not critical, a 2200-pF
ceramic is recommended. Traces to this part must be kept short and low impedance to provide adequate filtering.
CAUTION
Shorting this pin to a voltage below A damages the TPS241x.
Copyright © 2007–2015, Texas Instruments Incorporated Submit Documentation Feedback 9
Product Folder Links: TPS2412 TPS2413
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