參數(shù)資料
型號: TPS2301PW
廠商: Texas Instruments, Inc.
英文描述: DUAL HOT SWAP POWER CONTROLLER WITH INDEPENDENT CIRCUIT BREAKER AND POWER-GOOD REPORTING
中文描述: 雙熱插拔電源與獨(dú)立斷路器及功率控制器,高質(zhì)量的報(bào)告
文件頁數(shù): 16/22頁
文件大?。?/td> 422K
代理商: TPS2301PW
TPS2300, TPS2301
DUAL HOT SWAP POWER CONTROLLER WITH INDEPENDENT
CIRCUIT BREAKER AND POWER-GOOD REPORTING
SLVS265B – FEBRUARY 2000 – REVISED APRIL 2000
16
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
Table 1. Some Available N-Channel MOSFETs
CURRENT RANGE
(A)
PART NUMBER
DESCRIPTION
MANUFACTURER
IRF7601
N-channel, rDS(on) = 0.035
, 4.6 A, Micro-8
N-channel, rDS(on) = 0.040
, 4.6 A, Micro-8
Dual N-channel, rDS(on) = 0.1
, 2.3 A, SO-8
Dual N-channel, rDS(on) = 0.04
, 5 A, SO-8
N-channel, rDS(on) = 0.022
, 7 A, SO-8
N-channel, rDS(on) = 0.025
, 5 A, SO-8
Dual N-channel, rDS(on) = 0.029
, 5.2 A, SO-8
N-channel, rDS(on) = 0.020
, 8 A, SO-8
N-channel, rDS(on) = 0.019
, 29 A, d-Pak
N-channel, rDS(on) = 0.045
, 14 A, d-Pak
International Rectifier
0 to 2
MTSF3N03HDR2
ON Semiconductor
IRF7101
International Rectifier
MMSF5N02HDR2
ON Semiconductor
IRF7401
International Rectifier
2 to 5
MMSF5N02HDR2
ON Semiconductor
IRF7313
International Rectifier
SI4410
Vishay Dale
5 to 10
IRLR3103
IRLR2703
International Rectifier
International Rectifier
timer
For most applications, a minimum capacitance of 50 pF is recommended to prevent false triggering. This
capacitor should be connected between TIMER and ground. The presence of an overcurrent condition on either
channel of the TPS2300/01 causes a 50-
μ
A current source to begin charging this capacitor. If the over-
current condition persists until the capacitor has been charged to approximately 0.5 V, the TPS2300/01 will latch
off the offending channels and will pull the FAULT pin low. The timer capacitor can be made as large as desired
to provide additional time delay before registering a fault condition.
output-voltage slew-rate control
When enabled, the TPS2300/01 controllers supply the gates of each external MOSFET transistor with a current
of approximately 15
μ
A. The slew rate of the MOSFET source voltage is thus limited by the gate-to-drain
capacitance C
gd
of the external MOSFET capacitor to a value approximating:
15
A
Cgd
dvs
dt
If a slower slew rate is desired, an additional capacitance can be connected between the gate of the external
MOSFET and ground.
VREG capacitor
The internal voltage regulator connected to VREG requires an external capacitor to ensure stability. A 0.1-
μ
F
or 0.22-
μ
F ceramic capacitor is recommended.
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