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High-Efficiency Charger for Li-Ion Batteries

封装信息

CAD 模型: View CAD Model
Pkg. Type: VFQFPN
Pkg. Code: NBG16
Lead Count (#): 16
Pkg. Dimensions (mm): 4.0 x 4.0 x 0.9
Pitch (mm): 0.65

环境和出口类别

Moisture Sensitivity Level (MSL) 1
Pb (Lead) Free Yes
ECCN (US)
HTS (US)

产品属性

Pkg. Type VFQFPN
Lead Count (#) 16
Temp. Range (°C) -40 to 125°C
Carrier Type Reel
Function Li-ion Charger
Input Voltage Range (V) 3.5 - 7.2
Length (mm) 4
MOQ 1000
Moisture Sensitivity Level (MSL) 1
Output Current Max (A) 1.5
Package Area (mm²) 16
Pb (Lead) Free Yes
Pb Free Category e3 Sn
Pitch (mm) 0.65
Pkg. Dimensions (mm) 4.0 x 4.0 x 0.9
Qty. per Carrier (#) 0
Qty. per Reel (#) 1000
Requires Terms and Conditions Does not require acceptance of Terms and Conditions
Tape & Reel Yes
Thickness (mm) 0.9
Width (mm) 4
已发布 No

描述

The ZSPM4551 is a DC/DC synchronous switching lithium-ion (Li-Ion) battery charger with fully integrated power switches, internal compensation, and full fault protection. Its switching frequency of 1MHz enables the use of small filter components, resulting in smaller board space and reduced BOM cost. In Full-Charge Constant-Current Mode, the regulation is for constant current (CC). Once termination voltage is reached, the regulator operates in voltage mode. When the regulator is disabled (the EN pin is low), the device draws 10µA (typical) quiescent current. The ZSPM4551 includes supervisory reporting through the NFLT (inverted fault) open-drain output to interface other components in the system. Device programming is achieved by an I²C interface through the SCL and SDA pins.