參數(shù)資料
型號(hào): MAX1874EVKIT
廠商: Maxim Integrated Products, Inc.
英文描述: MAX1874 Evaluation Kit
中文描述: MAX1874評(píng)估板
文件頁數(shù): 7/16頁
文件大?。?/td> 405K
代理商: MAX1874EVKIT
M
Dual-Input, USB/AC Adapter, 1-Cell
Li+ Charger with OVP and Thermal Regulation
_______________________________________________________________________________________
7
OFF-BATTERY LEAKAGE
vs. USB INPUT VOLTAGE
M
V
USB
(V)
I
B
(
μ
A
6
5
3
4
2
1
1
2
3
4
5
6
7
8
9
10
0
0
7
V
EN
= 0
V
DCLV
= V
DC
= 0
V
BATT
= 4.2V
OFF-BATTERY LEAKAGE
vs. DC INPUT VOLTAGE
M
V
DCIN
(V)
I
B
μ
A
6
5
3
4
2
1
1
2
3
4
5
6
7
8
9
10
0
0
7
V
EN
= 0
V
USB
= 0
V
BATT
= 4.2V
V
DC
= V
DCLV
USB LEAKAGE vs. DC INPUT VOLTAGE
M
V
DCIN
(V)
I
U
16
14
12
10
8
6
4
2
100
200
300
400
500
600
0
0
18
LEAKAGE FROM USB TO GND
V
EN
= 5V
BATTERY CURRENT AND VOLTAGE
vs. TIME
MAX1874 toc13
1.5AHr CELL
TIME (MIN)
I
B
200
150
50
100
100
200
300
400
500
600
700
800
900
1000
0
0.8
1.6
2.4
3.2
4.0
4.8
5.6
6.4
7.2
8.0
0
0
300
250
V
B
A
C
(
I
BATT
CHG
V
BATT
RESPONSE TO OVERVOLTAGE INPUT
USB = 0
MAX1874 toc14
40ms/div
20V/div
DC
DCLV
PON
5V/div
5V/div
20V/div
DCOK
DC CONNECT WAVEFORMS
V
USB
= 0, V
BATT
= 3.9V
MAX1874 toc15
40ms/div
10V/div
DC
DCLV
PON
10V/div
10V/div
1A/div
10V/div
DCOK
I
BATT
Typical Operating Characteristics (continued)
(V
USB
= V
DC
= V
DCLV
= V
EN
= 5V, V
BATT
= 4.2V, V
THRM
= V
REF
/ 2, V
DCI
= V
REF
, V
USEL
= 5V, Circuit of Figure 4, T
A
= +25
°
C,
unless otherwise noted.)
DC CONNECT WAVEFORMS
V
USB
= 5V, V
BATT
= 3.9V
MAX1874 toc16
40ms/div
10V/div
DC
DCLV
PON
10V/div
10V/div
1A/div
10V/div
DCOK
I
BATT
USB CONNECT WAVEFORMS
V
DC
= 0, V
BATT
= 3.9V
MAX1874 toc17
40ms/div
5V/div
USB
PON
5V/div
500mA/div
5V/div
UOK
I
BATT
DC STARTUP WAVEFORMS FOR ENABLE
V
BATT
= 3.9V
MAX1874 toc18
10ms/div
5V/div
EN
5V/div
500mA/div
CHG
I
BATT
相關(guān)PDF資料
PDF描述
MAX1875 Dual 180∑ Out-of-Phase PWM Step- Down Controllers with POR
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1875AEEG 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX1875AEEG+ 功能描述:電壓模式 PWM 控制器 Dual 180 Out PWM Step-Down RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX1875AEEG+T 功能描述:電壓模式 PWM 控制器 Dual 180 Out PWM Step-Down RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX1875AEEG-T 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX1875EEG 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK