Diodes ZXBM5210 - Manual (Page 10)

ZXBM5210
Document number: DS36765 Rev. 1 - 2
10 of 17
www.diodes.com
December 2013
© Diodes Incorporated
NEW PROD
UC
T
ZXBM5210
Typical Operating Characteristics
Output PWM Duty in PWM Speed Control Mode Output PWM Duty in VREF Speed Control Mode
PWM Oscillator Frequency
0
10
20
30
40
50
60
70
80
90
100
0 10 20 30 40 50 60 70 80 90 100
O
u
tp
u
t PW
M
D
u
ty
(%
)
Input PWM Duty (%)
Output PWM Duty vs Input PWM Duty
12V
3V
18V
T
A
= 25 o C, Mode A PWM, Input PWM Frequency 25kHz
0
10
20
30
40
50
60
70
80
90
100
0 0.2 0.4 0.6 0.8 1
O
u
tp
u
t P
W
M
D
u
ty
(%
)
V
REF
/V
DD
Ratio
OutputPWM Duty vs V
REF
/V
DD
Ratio
12V
3V
18V
T
A
= 25 o C, VREF Mode, No Load
20
22
24
26
28
30
2 4 6 8 10 12 14 16 18 20
Fr
eq
uency
(k
H
z)
Supply Voltage (V)
PWM Oscillator Frequency vs. Supply Voltage
T
A
= 25 o C
20
22
24
26
28
30
-50 -25 0 25 50 75 100 125
Fr
eque
n
cy
(k
H
z)
Temperature (°C)
PWM Oscillator Frequency vs. Temperature
12V
3V
18V