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參數(shù)資料
| 型號： | TPIC0107 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | PWM CONTROL INTELLIGENT H-BRIDGE |
| 中文描述： | PWM控制智能H橋 |
| 文件頁數(shù)： | 9/14頁 |
| 文件大?。?/td> | 202K |
| 代理商： | TPIC0107 |
TPIC0107B
PWMCONTROL INTELLIGENT H-BRIDGE
SLIS067 – NOVEMBER 1998
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
protective functions and diagnostics
over current/short circuit
The TPIC0107B detects shorts to V
CC
, ground, or across the load being driven, by comparing the V
DS
voltage
drop across the DMOS outputs against the threshold voltage. The DMOS outputs of the TPIC0107B will be
disabled and the fault flags will be generated 10
μ
s after an over-current or short-circuit fault is detected. This
10
μ
s delay is long enough to serve as a de-glitch filter for high current transients, yet short enough to prevent
damage to the DMOS outputs. The DMOS outputs remain latched off until either DIR or PWM input is toggled.
In cases where the outputs have a continuous short-to-ground with a current rise time faster than 0.5 A/
μ
s, the
over-current shutdown threshold will decrease to 3 A to reduce power dissipation. This reduction to 3 A is
achieved since the DMOS outputs will not be fully enhanced when the over-current threshold is reached if the
current rise time exceeds 0.5 A/
μ
s. Over-current and/or short-circuit protection is provided up to V
CC
= 16.5 V
and a junction temperature of 90
°
C.
over temperature
The TPIC0107B disables all DMOS outputs and the fault flags will be set when T
J
≥
140
°
C (min.). The DMOS
outputs remain latched off until either DIR or PWM input is toggled.
under voltage
The TPIC0107B disables all DMOS outputs when V
CC
≤
V
(UVCC)
. The outputs will be re-enabled when
V
CC
≥
V
(UVCC)
. No fault flags are set when under-voltage lockout occurs.
over voltage
In order to protect the DMOS outputs from damage caused by excessive supply voltage, the TPIC0107B
disables all outputs when V
CC
≥
V
(OVCC)
. Once V
CC
≤
V
(OVCC)
, either DIR or PWM input must be toggled to
re-enable the DMOS outputs.
cross conduction
Monitoring circuitry for each transistor detects whether the particular transistor is active to prevent the HSD or
LSD of the corresponding half H-bridge from conducting.
open circuit
During operation, the bridge current is controlled continuously. If the bridge current is >10 mA (min.) for a period
>1 ms (min.), the fault flags are set. However, the output transistors will not be disabled.
All limits mentioned are typical values unless otherwise noted.
If a short circuit occurs (i.e., the over-current detection circuitry is activated) at a supply voltage higher than 16.5 V and a junction temperature
higher than 90
°
C, damage to the device may occur.
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| TPIC1502 | CONNECTOR ACCESSORY |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TPIC0107B | 制造商:TI 制造商全稱:Texas Instruments 功能描述:PWM CONTROL INTELLIGENT H-BRIDGE |
| TPIC0107BDWP | 功能描述:INTEL H-BRIDGE 180 MOHM 20-HSOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 電機和風扇控制器，驅動器 系列:- 標準包裝:1 系列:- 應用:直流電機驅動器，步進電機驅動器 評估套件:- 輸出數(shù):1 或 2 電流 - 輸出:750mA 電壓 - 負載:10 V ~ 40 V 電源電壓:4.5 V ~ 5.5 V 工作溫度:-20°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-BFSOP（0.295"，7.50mm 寬） 供應商設備封裝:24-SOP 包裝:Digi-Reel® 其它名稱:MTS62C19A-HS105DKR |
| TPIC0107BDWPR | 制造商:Texas Instruments 功能描述:IC PWM CONTROL HALF BRIDGE HSOP20 |
| TPIC0108 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:PWM CONTROL INTELLIGENT H-BRIDGE |
| TPIC0108B | 制造商:TI 制造商全稱:Texas Instruments 功能描述:PWM CONTROL INTELLIGENT H-BRIDGE |
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