SI9122E Datasheet, PDF (14/20 Pages) Vishay Siliconix – 500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification Drivers

Si9122E
Vishay Siliconix
TYPICAL CHARACTERISTICS
100
90
V_CC = 12 V
t_BBM1
80
t_BBM4
70
60
t_BBM3
50
t_BBM2
40
30
20
25
30
35
40
45
R_BBM (k )
t_BBM vs. R_BBM, V_EP = 0 V, V_LX = 48 V, BST = 60 V,
V_INDET = 4.8 V, f_OSC < 200 kHZ
80
t_BBM1, V_CC = 13 V
t_BBM1, V_CC = 12 V
70
t_BBM1, V_CC = 10 V
60
V_EP = 0 V
R_BBM = 33 k
50
t_BBM2, V_CC = 10 V
40
t_BBM2, V_CC = 12 V
t_BBM2, V_CC = 13 V
30
- 50 - 25 0
25 50 75 100 125
Temperature (°C)
t_{BBM1, 2} vs. Temperature, V_EP = 0 V, f_OSC < 200 kHz
70
V_EP = 0 V
65
R_BBM = 33 k
t_BBM4, V_CC = 10 V
fosc < 200 kHz
60
55
t_BBM4, V_CC = 12 V
50
t_BBM4, V_CC = 13 V
45
t_BBM3, V_CC = 13 V
40
t_BBM3, V_CC = 12 V
35
t_BBM3, V_CC = 10 V
30
- 50 - 25 0
25 50 75 100 125
Temperature (°C)
t_{BBM3, 4} vs. Temperature, V_EP = 0 V, f_osc < 200 kHz
www.vishay.com
14
65
V_CC = 12 V
55
45
35
t_BBM4
t_BBM1
t_BBM2
t_BBM3
25
15
25
30
35
40
45
R_BBM (k )
t_BBM vs. R_BBM, V_EP = 1.65 V, V_LX = 48 V, BST = 60 V,
V_INDET = 4.8 V
60
V_EP = 1.65 V
R_BBM = 33 k
55
t_BBM1, V_CC = 10 V
50
45
t_BBM1, V_CC = 13 V
t_BBM1, V_CC = 12 V
40
t_BBM2, V_CC = 10 V
t_BBM2, V_CC = 12 V
35
t_BBM2, V_CC = 13 V
30
- 50
- 25 0
25 50 75 100 125
Temperature (°C)
t_{BBM1, 2} vs. Temperature, V_EP = 1.65 V
80
V_EP = 1.65 V
R_BBM = 33 k
70
t_BBM4, V_CC = 13 V
60 _{tBBM4, VCC = 12 V}
50
t_BBM4, V_CC = 10 V
40
30
20
- 50
t_BBM3, V_CC = 12 V
t_BBM3, V_CC = 10 V
t_BBM3, V_CC = 13 V
- 25 0
25 50 75 100 125
Temperature (°C)
t_{BBM3, 4} vs. Temperature, V_EP = 1.65 V
Document Number: 73866
S-80112-Rev. D, 21-Jan-08