TPS65142
www.ti.com
SLVSAX5 –JULY 2011
-4.0
-4.2
-4.4
-4.6
-4.8
-5.0
-5.2
-5.4
VIN = 4.2 V
VS = 9 V
85oC
VGH = -6 V
25oC
VGL = 100 mV/div
VIN = 3.3 V,
-40oC
VS = 9 V, IS = 100 mA
VGH = -5.8 V, IGL = 5 mA to 15 mA
IGL = 10 mA/div
-5.6
-5.8
-6.0
Time = 2 ms / div
0
0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
Output Current [A]
Figure 9. NEGATIVE CHARGE PUMP LOAD TRANSIENT
RESPONSE
Figure 10. NEGATIVE CHARGE PUMP VOLTAGE vs LOAD
CURRENT
VIN = 2 V/div
VS = 5 V/div
VIN = 2 V/div
VS = 5 V/div
V
GH = 10 V/div
VIN 3.3 V, VS = 9 V
VGH = 24 V, VGL = -5.8 V
V
GH = 10 V/div
VIN 3.3 V, VS = 9 V
VGH = 24 V, VGL = -5.8 V
VGL = 5 V/div
VGL = 5 V/div
Time = 4 ms / div
Time = 400 ms / div
Figure 11. POWER ON SEQUENCE
Figure 12. POWER OFF SEQUENCE
Copyright © 2011, Texas Instruments Incorporated
Submit Documentation Feedback
13
Product Folder Link(s) :TPS65142
TI [ TEXAS INSTRUMENTS ]
