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參數資料
| 型號： | TPS3808G33MDBVREP |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
| 封裝： | GREEN, PLASTIC, SOT-23, 6 PIN |
| 文件頁數： | 10/15頁 |
| 文件大小： | 530K |
| 代理商： | TPS3808G33MDBVREP |
Adjustable Voltage Version
Fixed Voltage Version
Reset
Logic
Timer
+
90k
V
DD
V
DD
GND
0.4V
V
REF
SENSE
MR
C
T
RESET
TPS3808G01
Adjustable Voltage
Reset
Logic
Timer
+
90k
V
DD
V
DD
GND
0.4V
V
REF
SENSE
MR
C
T
RESET
R
1
R
2
R
1 + R2 = 4M
PIN ASSIGNMENTS
V
DD
SENSE
C
T
RESET
GND
MR
1
2
3
6
5
4
SBVS103C – APRIL 2008 – REVISED NOVEMBER 2008 ................................................................................................................................................. www.ti.com
FUNCTIONAL BLOCK DIAGRAMS
Figure 1. Adjustable and Fixed Voltage Versions
DBV PACKAGE
SOT23
(TOP VIEW)
Table 1. TERMINAL FUNCTIONS
TERMINAL
SOT23 (DBV)
NAME
PIN NO.
DESCRIPTION
RESET
1
RESET is an open-drain output that is driven to a low impedance state when RESET is asserted (either the
SENSE input is lower than the threshold voltage (VIT) or the MR pin is set to a logic low). RESET remains
low (asserted) for the reset period after both SENSE is above VIT and MR is set to a logic high. A pullup
resistor from 10 k
to 1 M should be used on this pin, and allows the reset pin to attain voltages higher
than VDD.
GND
2
Ground
MR
3
Driving the manual reset pin (MR) low asserts RESET. MR is internally tied to VDD by a 90k pullup resistor.
CT
4
Reset period programming pin. Connecting this pin to VDD through a 40-k to 200-k resistor or leaving it
open results in fixed delay times (see Electrical Characteristics). Connecting this pin to a ground referenced
capacitor
≥ 100 pF gives a user-programmable delay time. See the Selecting the Reset Delay Time section
for more information.
SENSE
5
This pin is connected to the voltage to be monitored. If the voltage at this terminal drops below the threshold
voltage VIT, then RESET is asserted.
VDD
6
Supply voltage. It is good analog design practice to place a 0.1-
F ceramic capacitor close to this pin.
4
Copyright 2008, Texas Instruments Incorporated
Product Folder Link(s): TPS3808-EP
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相關代理商/技術參數 |
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| TPS3808G33QDBVRMO | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| TPS3808G33QDBVRQ1 | 功能描述:監控電路 Lo Quies Current Pro Delay Sup Circuit RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| TPS3808G50DBVR | 功能描述:監控電路 Programmable-Delay Supervisory RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| TPS3808G50DBVRG4 | 功能描述:監控電路 Programmable-Delay Supervisory RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| TPS3808G50DBVT | 功能描述:監控電路 Programmable-Delay Supervisory RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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