由于采用了內部PMOSFET架構，加上防倒充電路，所以不需要外部檢測電阻器和隔離二極管。熱反饋可對充電電流進行自動調節，以便在大功率操作或高環境溫度條件下對芯片溫度加以限制。充滿電壓會因不同的鋰電池而不同，而充電電流可通過一個電阻器進行外部設置。當電池達到充滿電壓后，充電電流降至設定值1/10，PT4055C將自動終止充電。當輸入電壓（交流適配器或USB電源）被拿掉時，PT4055C自動進入一個低電流狀態，電池漏電流在7uA以下。PT4055C的其他特點包括充電電流監控器、欠壓閉鎖、自動再充電和一個用于指示充電結束和輸入電壓接入的狀態引腳。
特點
●2.4V鋰電池充電
●鋰電池正負極反接保護
●高達600mA的可編程充電電流
●無需MOSFET、檢測電阻器或隔離二極管
用●于單節鋰離子電池
●恒定電流/恒定電壓操作，并具有可在無過熱危險的情況下實現充電速率最大化的熱調節功能
●可直接從USB端口給單節鋰離子電池充電
●最高輸入可達7V
●精度達到±1%的預設充電電壓
●自動再充電
●1個充電狀態開漏輸出引腳
●C/10充電終止
●待機模式下的供電電流為250uA
●欠壓時涓流充電
●軟啟動限制了浪涌電流
●采用5引腳SOT-23封裝
IRFD220
IRFD9020
HD6805U1A78P
ULA6DVA014CCG
118-019-A
V4911BCH
2SA1380-F
AHC2G32HDCTR-1
B39192-B4689-Z610
B4689
EM51L256A-15J
SST39SF020A-70-4C-NH-T
TCM9108APTAR ROP101697/3CR3A
TDA6130-5
TLP627
MC34119
IR1282
AK8911
MLX12106F
1000DN2
L1000DN2
LUCENT1000DN2
T1000DN2
EL6291CL
GBDA-2130-0970
TDA1517
LH1061
T65118ACP
76R03
TP5299M
AT89C2051-24PC
AM186EM-20VC
AM186EM-25VC
AM186EM-33VC
AM186EM-50VC
SM5087EP
TCD2557D
TDF5140AP
TAE2453A
PEB2047-16NV2.1
PEB2047NV2.1
PEB2047NV2.1-16
TAB2453A
ILX348KA
TA31161FN
T7290EL2
L9950
RYT3056002/2
B1966
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3770044
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MC33179DR2
UPA1428AH
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LC74781
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315-6211-AT
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IDT71342LA55J
IDT71342LA70J
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IDT71342S45J
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IDT71342SA100J
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CY7C371-66JC
CY7C371-83JC
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11000
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RMUC1900B
24LC128T-I/STA37
SP4740
PIC24LC128T-I/STA37
MP4102
6004BCJG
AME6004BCJG
CL43B226KPJNNNF
