AM4963 datasheet(13/16 Pages) DIODES

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Data Sheet

Single Phase Full Wave Direct PWM Motor Driver

AM4963/AM4963R

Sep. 2011 Rev. 1. 0

BCD Semiconductor Manufacturing Limited

2040

6080

100

CC=12V

A=30

A=38

Input Duty Cycle (%)

56789

T=TSM2A103F39H1RZ

R8 (kΩ)

100

120

140

160

180

200

220

240

Input duty cycle=100%

L=30

R9 (kΩ)

100

Input duty cycle=20%

Input duty cycle=50%

Input duty cycle=70%

Input duty cycle=100%

A (

OC)

Typical Application (Note 4, Continued)

Note 4: Some typical performance curves of applications based on circuits above (Figure 10, 11) are shown as

below (R1 to R6 open, R8=8k

Ω, R9=150kΩ).

Figure 12. Output Duty Cycle vs. Input Duty Cycle

Figure 13. Output Duty Cycle vs. TA

Figure 14. Low Corner Temperature vs. R8

Figure 15. High Corner Temperature vs. R9 (Note 5)

Note 5:

1) Low corner temperature (TL) is set by thermal resistor RT and R8; RT=R8 when at temperature TL.

2) High corner temperature (TH) can be expressed as: TH≈TL+5*R9/100k.

3) First, set TL, then TH.

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