SI9135 Datasheet, PDF (2/14 Pages) Vishay Siliconix – SMBus Multi-Output Power-Supply Controller

Si9135
Vishay Siliconix
New Product
ABSOLUTE MAXIMUM RATINGS
V_IN to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +36 V
P_GND to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±2 V
V_L to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6.5 V
BST₃, BST₅, BSTFY to GND . . . . . . . . . . . . . . . . . . . -0.3 V to +36 V
V_L Short to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
LX₃ to BST₃; LX₅ to BST₅; LXFY to BST . . . . . . . . . . . -6.5 V to 0.3 V
Inputs/Outputs to GND
(SYNC, CS₃, CS₅, CSP, CSN) . . . . . . . . . . . . . . -0.3 V to (V_L +0.3 V)
SDA, SCL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 V to +5.5 V
DL3, DL5, DLFY to PGND . . . . . . . . . . . . . . . . . -0.3 V to (V_L +0.3 V)
DH3 to LX₃, DH5 to LX₅,
DHFY to LXFY . . . . . . . . . . . . . . . . . . . . . . . . -0.3 V to (BSTX +0.3 V)
Continuous Power Dissipation (T_A = 90°C)^a
28-Pin SSOP^b . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 572 mW
Operating Temperature Range. . . . . . . . . . . . . . . . . . . . . 0°C to 90°C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . -40°C to 125°C
Lead Temperature (Soldering, 10 Sec.) . . . . . . . . . . . . . . . . . . . 300°C
Notes
a. Device mounted with all leads soldered or welded to PC board.
b. Derate 9.52 mW/°C above 90°C.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
SPECIFICATIONS
Parameter
3.3-V Buck Controller
Total Regulation (Line, Load, and
Temperature)
Line Regulation
Load Regulation
Current Limit
Bandwidth
Phase Margin
5-V Buck Controller
Total Regulation (Line, Load, and
Temperature)
Line Regulation
Load Regulation
Current Limit
Bandwidth
Phase Margin
12-V Flyback Controller
Total Regulation (Line, Load, and
Temperature)
Line Regulation
Load Regulation
Current Limit
Bandwidth
Phase Margin
Internal Regulator
V_L Output
V_L Fault Lockout Voltage
V_L Fault Lockout Hysteresis
V_L /FB5 Switchover Voltage
V_L /FB5 Switchover Hysteresis
Test Conditions
V_IN = 15 V , I_VL = I_REF = 0 mA
T_A = 0°C to 90°C, All Converters ON
Min^a
Limits
Typ^b
Max^a
Unit
V_IN = 6 to 30 V, 0 < V_CS3 - V_FB3 < 90 mV
V_IN = 6 to 30 V
0 < V_CS3 - V_FB3 < 90 mV
V_CS3 - V_FB3
L = 10 µH, C = 330 µF
R_SENSE = 20 mΩ
3.23
3.33
3.43
V
±0.5
%
±0.5
90
125
160
mV
50
kHz
65
°
V_IN = 6 to 30 V, 0 < V_CS5 - V_FB5 < 90 mV
V_IN = 6 to 30 V
0 < V_CS5 - V_FB5 < 90 mV
V_CS5 - V_FB5
L = 10 µH, C = 330 µF
R_SENSE = 20 mΩ
4.88
5.03
5.18
V
±0.5
%
±0.5
90
125
160
mV
50
kHz
65
°
V_IN = 6 to 30 V, 0 < V_CSP - V_CSN < 300 mV
V_IN = 6 to 30 V
0 < V_CSP - V_FBN < 300 mV
V_CSP - V_CSN
L = 10 µH, C = 100 µF
R_SENSE = 100 mΩ, C_comp = 120 pF
All Converters OFF, V_IN >5.5 V, 0 <I_L <30 mA
11.4
12.0
12.6
V
±0.5
%
±0.5
330
410
500
mV
10
kHz
65
°
4.7
5.5
V
3.6
4.2
75
mV
4.2
4.7
V
75
mV
S-60752—Rev. B, 05-Apr-99
2
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