參數(shù)資料
型號(hào)： DS232AR
廠商： DALLAS SEMICONDUCTOR
元件分類(lèi)： Line Driver or Receiver
英文描述： LINE TRANSCEIVER, PDSO16
封裝： 0.150 INCH, SOIC-16
文件頁(yè)數(shù)： 14/14頁(yè)
文件大?。?/td> 300K
代理商： DS232AR
Output Driver
The MAX15018_/MAX15019_ drivers contain low on-
resistance p-channel and n-channel devices in a totem
pole configuration for the driver output stage. This
allows for rapid turn-on and turn-off of high gate-charge
(Qg) external switching MOSFETs.
The drivers exhibit low drain-to-source resistance
(RDS_ON), which decreases for higher values of VDD
and for lower operating temperatures. Lower RDS_ON
means higher source and sink currents from the IC,
and results in faster switching speeds, since the exter-
nal MOSFET gate capacitance will charge and dis-
charge at a quicker rate. The peak source and sink
current provided by the drivers is typically 3A.
Propagation delay from the logic inputs to the driver
outputs is matched to within 8ns (max) between the
low-side and high-side drivers. Turn-on and turn-off
propagation delays are typically 35ns and 36ns. See
Figure 1. The internal drivers also contain break-before-
make logic to eliminate shoot-through conditions that
would cause unnecessarily high operating supply cur-
rents, efficiency reduction, and voltage spikes at VDD.
Voltage at DL is approximately equal to VDD when in a
high state, and zero when in a low state. Voltage from
DH to HS is approximately equal to VDD minus the
diode drop of the integrated bootstrap diode when in a
high state, and zero when in a low state. The high-side
MOSFET’s continuous on-time is limited due to the
charge loss from the high-side driver’s quiescent cur-
rent. The maximum on-time is dependent on the size of
the bootstrap capacitor (CBST), IBST (190A max), and
VBST_UVLO.
Integrated Bootstrap Diode
An integrated diode between VDD and BST is used in
conjunction with an external bootstrap capacitor (CBST)
to provide the voltage required to turn on the high-side
MOSFET (see the
Typical Operating Circuit). The inter-
nal diode charges the bootstrap capacitor from VDD
when the low-side switch is on, and isolates VDD when
HS is pulled high when the high-side driver turns on.
The internal bootstrap diode has a typical forward volt-
age drop of 0.9V and has a 40ns (typ) turn-off/-on time.
The turn-off time (reverse recovery time) depends on
the reverse-recovery current and can be as low as
10ns. If a lower diode voltage-drop between VDD and
BST is needed, connect an external Schottky diode
between VDD and BST.
MAX15018/MAX15019
125V/3A, High-Speed,
Half-Bridge MOSFET Drivers
_______________________________________________________________________________________
9
Figure 1. Timing Characteristics of Logic Inputs (MAX15018A/MAX15019A)
IN_L
DL
tD_OFF1
IN_H
VIL
DH
90%
10%
90%
10%
VIH
tR
tD_ON1
tD_OFF1
tMATCH = (tD_ON2 - tD_ON1) OR (tD_OFF2 - tD_OFF1)
tF
tD_ON2
相關(guān)PDF資料
PDF描述
DS232AR-N LINE TRANSCEIVER, PDSO16
DS232AS-N LINE TRANSCEIVER, PDSO16
DS232AS LINE TRANSCEIVER, PDSO16
DS232A LINE TRANSCEIVER, PDIP16
DS2404S-001 0 TIMER(S), REAL TIME CLOCK, PDSO16
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS232AR/T&R 制造商:Maxim Integrated Products 功能描述:IC TXRX DUAL RS-232 5V 16-SOIC
DS232AR/T&R 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:
DS232AR/T&R/ 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:
DS232AR+ 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:
DS232AR+T&R 制造商:Maxim Integrated Products 功能描述:IC TXRX DUAL RS-232 5V 16-SOIC
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*