MC33340EVK Просмотр технического описания (PDF) - ON Semiconductor

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Компоненты Описание

производитель

MC33340EVK

Battery Fast Charge Controllers

ON Semiconductor 

MC33340 MC33342

Figure 16. Switch Mode Fast Charger

MC34166 or MC34167

ILimit

VCC

4+

AC

Line

Input

Osc

S

Q

Switch

R4

Output

R

PWM

2

Thermal

UVLO

Gnd 3

Ref

EA

Compensation 5

C1

R2

Voltage

Feedback

Input

1

R3

R1

Battery

Pack

Vsen

Gate

2

3

Fast/

Trickle

MC33340/342

Vsen

Gate

F/T

Gnd 4

The MC33340/342 can be used to control the MC34166 or MC34167 power switching regulators to produce an economical and efficient fast charger. These devices

are capable of operating continuously in current limit with an input voltage range of 7.5 to 40 V. The typical charging current for the MC34166 and MC34167 is 4.3

A and 6.5 A respectively. Resistors R2 and R1 are used to set the battery pack fast charge float voltage. If precise float voltage control is not required, components

R1, R2, R3 and C1 can be deleted, and Pin 1 must be grounded. The trickle current level is set by resistor R4. It is recommended that a redundant charge termination

method be employed for end user protection. This is especially true for fast charger systems. For additional converter design information, refer to the MC34166 and

MC34167 data sheets.

MOTOROLA ANALOG IC DEVICE DATA

11

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