参数资料
型号: LTC4410ES6#TRPBF
厂商: Linear Technology
文件页数: 4/8页
文件大小: 0K
描述: IC POWER MANAGER USB TSOT23-6
标准包装: 2,500
功能: 电源管理
电源电压: 4.35 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: SOT-23-6 细型,TSOT-23-6
供应商设备封装: TSOT-23-6
包装: 带卷 (TR)
LTC4410
PI FU CTIO S
V IN (Pin 1): Positive Input Supply. When V IN > 4.2V, the
internal undervoltage lockout enables the main switch that
connects V IN to V OUT . Bypass V IN with a 10 μ F ceramic
capacitor and a 1 ? resistor in series or use a 10 μ F
capacitor with at least 1 ? minimum ESR. This minimizes
the voltage transient that can occur when the input is hot
switched.
GND (Pin 2): Signal Ground for the LTC4410.
MODE (Pin 3): Mode Select Input. This pin selects the
maximum USB port current of either 100mA or 500mA.
When MODE is high, the current out of CHP will be I VOUT /
1000. When MODE is low, the current out of CHP will be
USBP (Pin 4): USB Voltage Present Output. This pin goes
high when V IN exceeds the undervoltage lockout threshold
(4.2V typical).
CHP (Pin 5): Charger Program Output. This pin sources a
current that is used by the battery charger to control
charge current.
V OUT (Pin 6): LTC4410 Output. Bypass this pin with a
10 μ F or larger X5R ceramic capacitor. This capacitor
may be omitted if other circuitry connected to V OUT
contains a bypass capacitor. When V OUT > V IN , the internal
switch is held off, resulting in very low battery drain
current (1 μ A typical).
I VOUT /1000 + 370 μ A (typical).
BLOCK DIAGRA
V IN
1
VB
M2
370 μ A
M1
× 1
R1
× 1000
BODY
SWITCH
MODE 3
S1
R2
+
USBP
+
R3
M3
THERMAL
SHUTDOWN
REF
1.25V
4 USBP
5
CHP
6
V OUT
2
GND
4410 BD
sn4410 4410fs
4
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