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| 型号： | MAX1897ETP+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/33页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 20-TQFN |
| 标准包装： | 2,500 |
| 系列： | Quick-PWM™ |
| PWM 型： | 控制器 |
| 输出数： | 1 |
| 频率 - 最大： | 550kHz |
| 电源电压： | 4.5 V ~ 5.5 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | 0°C ~ 85°C |
| 封装/外壳： | 20-WQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
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Quick-PWM Slave Controllers for
Multiphase, Step-Down Supplies
ABSOLUTE MAXIMUM RATINGS
V+ to GND ..............................................................-0.3V to +30V
V CC , V DD to GND (Note 3) .......................................-0.3V to +6V
PGND to GND.....................................................................±0.3V
TRIG, LIMIT to GND .................................................-0.3V to +6V
SHDN to GND (MAX1897)........................................-0.3V to +6V
ILIM, CM+, CM-, CS+, CS-, COMP
to GND....................................................-0.3V to (V CC + 0.3V)
TON, POL to GND (MAX1897) ...................-0.3V to (V CC + 0.3V)
DL to PGND................................................-0.3V to (V DD + 0.3V)
BST to GND ............................................................-0.3V to +36V
DH to LX ....................................................-0.3V to (V BST + 0.3V)
LX to BST..................................................................-6V to +0.3V
Continuous Power Dissipation (T A = +70 ° C)
16-Pin QSOP (derate 8.3mW/ ° C above +70 ° C)...........667mW
20-Pin 5mm x 5mm QFN (derate 20.0mW/ ° C
above +70 ° C)..............................................................1.60W
Operating Temperature Range ...........................-40 ° C to +85 ° C
Junction Temperature ......................................................+150 ° C
Storage Temperature Range .............................-65 ° C to +150 ° C
Lead Temperature (soldering, 10s) .................................+300 ° 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.
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V+ = 15V, V CC = V DD = 5V, V OUT = V COMP = 1.2V, V CM+ = V CM- = V CS+ = V CS- = 1.2V, SHDN = V CC
(MAX1897), T A = 0°C to +85°C , unless otherwise noted. Typical values are at T A = +25 ° C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
PWM CONTROLLER
Input Voltage Range
Battery voltage, V+
V CC , V DD
MAX1887 (300kHz), V+ = 12V, V COMP = 1.2V
4.0
4.5
320
355
28.0
5.5
390
V
On-Time (Note 1)
t ON
MAX1897,
V+ = 12V,
TON = GND
TON = open
171
320
190
355
209
390
ns
Trigger Delay (Note 2)
t TRIG
V COMP = 1.2V
TON = V CC
464
515
75
566
ns
SUPPLY CURRENTS
Quiescent Supply Current (V+)
I+
Measured at V+; V ILIM > 0.35V
25
40
μA
Quiescent Supply Current (V DD )
(Note 3)
I DD
Measured at V DD ; V ILIM
> 0.35V
MAX1887
MAX1897
525
<1
800
5
μA
Quiescent Supply Current (V CC )
(MAX1897, Note 3)
Standby Supply Current (V+)
I CC
Measured at V CC ; V ILIM > 0.35V
Measured at V+; ILIM = GND
525
<1
800
5
μA
μA
Standby Supply Current (V DD )
(Note 3)
Measured at V DD ; ILIM
= GND
MAX1887
MAX1897
20
<1
40
5
μA
Standby Supply Current (V CC )
(MAX1897, Note 3)
Shutdown Supply Current (V+)
(MAX1897)
Shutdown Supply Current (V DD )
(MAX1897, Note 3)
Shutdown Supply Current (V CC )
(MAX1897, Note 3)
Measured at V CC ; ILIM = GND
Measured at V+; V CC = V DD = 0 or 5V,
SHDN = GND
Measured at V DD ; SHDN = GND
Measured at V CC ; SHDN = GND
20
<1
<1
<1
40
5
5
5
μA
μA
μA
μA
2
_______________________________________________________________________________________
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| MAX1898EUB41 | 功能描述:电池管理 Linear Charger for 1-Cell Li+ Battery RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX1898EUB41+ | 功能描述:电池管理 Linear Charger for 1-Cell Li+ Battery RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX1898EUB41+T | 功能描述:电池管理 Linear Charger for 1-Cell Li+ Battery RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX1898EUB41-T | 功能描述:电池管理 Linear Charger for 1-Cell Li+ Battery RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX1898EUB42 | 功能描述:电池管理 Linear Charger for 1-Cell Li+ Battery RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
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