參數(shù)資料
型號(hào)： MAX1758
廠商： Maxim Integrated Products, Inc.
元件分類(lèi)： 數(shù)字信號(hào)處理
英文描述： Replaced by TMS320C6410 : Digital Signal Processor 100-LQFP
中文描述： 獨(dú)立的開(kāi)關(guān)模式Li+電池充電器，內(nèi)置28V開(kāi)關(guān)
文件頁(yè)數(shù)： 2/17頁(yè)
文件大?。?/td> 224K
代理商： MAX1758
M
Stand-Alone, Switch-Mode
Li+ Battery Charger with Internal 28V Switch
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DCIN, CSSP, CSSN, HSD to GND..........................-0.3V to +30V
CSSP to CSSN.......................................................-0.6V to +0.6V
BST to GND............................................................-0.3V to +36V
BST to LX..................................................................-0.3V to +6V
LX to PGND ..............................................-0.6V to (V
HSD
+ 0.3V)
VL,
SHDN
, ISETIN, ISETOUT, REF, VADJ, CELL, TIMER1,
TIMER2, CCI, CCS, CCV, THM to GND ................-0.3V to +6V
FASTCHG
,
FULLCHG
,
FAULT
to GND ..................-0.3V to +30V
BATT, CS to GND...................................................-0.3V to +20V
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V
DCIN
= V
HSD
= V
CSSP
= V
CSSN
= 18V, V
SHDN
= V
VL
, V
CELL
= GND, V
BATT
= V
CS
= 4.2V, V
VADJ
= V
REF
/ 2,
V
ISETIN
= V
ISETOUT
= V
REF
, R
THM
= 10k
,
T
A
= 0°C to +85°C
, unless otherwise noted. Typical values are at T
A
= +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
CS to BATT Current............................................................±3.5A
PGND to GND .......................................................-0.3V to +0.3V
VL Source Current...............................................................50mA
Continuous Power Dissipation (T
A
= +70°C)
28-Pin SSOP (derate 9.5mW/°C above +70°C) ...........762mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature.........................................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
V
BATT
= 18V, done state
Falling edge
CELL = REF, V
BATT
= 15V, any charging state
V
SHDN
= GND, V
BATT
= 19V
6V < V
DCIN
< 28V
Internal resistor between CS and BATT,
1.5A RMS operating
See
PWM Controller
section
V
BST
= V
LX
+ 4.5V
V
LX
= V
HSD
= V
DCIN
=28V, V
SHDN
= GND
I
REF
= 0 to 1mA
V
LX
= PGND, V
HSD
= V
DCIN
= 28V,
V
SHDN
= GND
V
CSSN
= V
CSSP
= V
DCIN
= 28V, V
SHDN
= GND
6V < V
DCIN
< 28V
Rising edge
6V < V
DCIN
< 28V
I
VL
= 0 to 15mA
6V < V
DCIN
< 28V
In-dropout, f
OSC
/ 4
Nondropout f
OSC
CONDITIONS
μA
150
270
BATT, CS Input Current
μA
280
540
μA
0.1
5
m
110
170
R
CS
CS to BATT Current-Sensing
Resistance
1
2
LX to PGND On-Resistance
m
260
450
HSD to LX On-Resistance
μA
0.1
10
LX Off-State Leakage
μA
0.1
10
HSD Off-State Leakage
μA
2
10
CSSN/CSSP Off-State Leakage
%
97
98
LX Maximum Duty Cycle
kHz
270
300
330
f
OSC
PWM Oscillator Frequency
V
0.075
0.125
0.175
DCIN to BATT Dropout
Threshold, DCIN Falling
mA
5
7
DCIN Quiescent Supply Current
mV
6
14
REF Load Regulation
SWITCHING REGULATOR
mV
2
6
REF Line Regulation
V
4.179
4.20
4.221
V
0.20
0.30
0.40
DCIN to BATT Dropout
Threshold, DCIN Rising
VL Output Voltage
VL Output Load Regulation
V
5.10
5.40
44
5.70
65
mV
V
REF
REF Output Voltage
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
V
6
28
DCIN Input Voltage Range
SUPPLY AND REFERENCE
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