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參數(shù)資料
| 型號： | AMS4106 |
| 廠商： | Advanced Monolithic Systems, Inc. |
| 英文描述： | 5A SYNCHRONUS PWM BUCK CONVERTER |
| 中文描述： | 5A條SYNCHRONUS變換器 |
| 文件頁數(shù)： | 4/11頁 |
| 文件大小： | 440K |
| 代理商： | AMS4106 |
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723
AMS4106
ELECTRICAL CHARACTERISTICS (continued)
Electrical Characteristics at T
J
= -40
°
C to 125
°
C and Vin = 4.5V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
AMS4106
Min. Typ. Max.
Units
Soft Start (SS)
f
= 250 kHz
f
= 500 kHz
2.22
μ
A
4.6
Internal soft start (10% to 90%)
2.3
ms
POWER GOOD (PWRGD PIN)
Power good threshold
Rising edge delay
Rising voltage
f
= 250 kHz
f
= 500 kHz
I
sink
= 1 mA, VIN > 4.5 V
I
sink
= 1
μ
A, VIN = 0 V
Voltage on PWRGD = 6 V
95%
4
2
0.05
0.075
2
ms
Output saturation voltage
Output saturation voltage
Open collector leakage
V
V
μ
A
PWR
GD
CURRENT LIMIT
Current limit
Current limit Hiccup Time
THERMAL SHUTDOWN
Thermal shutdown trip point
Thermal shutdown hysteresis
(1)
VIN = 12
f
= 500 kHz
6.1
6.5
4.5
7.5
A
ms
145
10
°
C
°
C
LOW SIDE EXTERNAL FET DRIVE
Turn on rise time, (10%/90%)
(1)
VIN = 4.5V, Capacitive load = 1000 pF
VIN = 8 V, Capacitive load = 1000 pF
VIN = 12 V
VIN = 4.5 V sink/ source
VIN = 12 V sink/ source
15
12
60
7.5
5
ns
ns
Deadtime
(1)
Driver ON resistance
OUTPUT POWER MOSFETS (LX PIN)
Lx node voltage when disabled
Voltage drop, low side FET and
diode
r
DS (ON)
High side power switch
(1) Specified by design, not production tested.
DC conditions and no load, EN = 0 V
VIN = 4.5 V, Idc = 100 mA
VIN = 12 V, Idc = 100 mA
VIN = 4.5 V, BST-LX = 4.5 V, I
o
= 0.5 A
VIN = 12 V, BST-LX = 8 V, I
o
=
0.5 A
0.5
1.13
1.08
60
40
1.42
1.38
V
V
m
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