Datasheet

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DEVICE INFORMATION
RT
BIAS
GND
SS
GM
PGND
7
8
9
10
11
12
RGE PACKAGE
(BOTTOM VIEW)
24
23
22
21
20
19
MGU
MGD
SYNC
PG
VO
ISNS
123456
18 17 16 15 14 13
COMP FB TRKOUT TRKIN UVLO ILIM
VDD
SW
HDRV
BST
5VBP
LDRV
TPS40100
SLUS601–MAY 2005
ELECTRICAL CHARACTERISTICS (continued)
-40°C ≤ T
A
=T
J
≤ 85°C, V
VDD
=12V,R
RT
= 182 kΩ,R
GM
= 232 kΩ,R
ILIM
= 121 kΩ (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
TRACKING AMPLIFIER
V
TRKOS
=V
TRKIN
-V
O
;V
VO
≤ 2V 7 25 40
V
TRKOS
Tracking amplifier input offset voltage mV
V
TRKOS
=V
TRKIN
-V
O
;2V<V
VO
≤ 6 V -5 25 40
V
TRKCM
Input common mode, active range 0 6
4.5 V ≤ V
VDD
≤ 5.5 V 0 3.6
V
TRK
Tracking amplifier voltage range
5V<V
VDD
≤ 18 V
(5)
06
V
V
VDD
= 12 V 5.0 6.5 8.0
V
HTKROUT
High-level output voltage, TRKOUT
V
VDD
= 4.5 V 3.2 3.6
V
LTKROUT
Low-level output voltage, TRKOUT 0 0.5
I
SRCTRKOUT
Source current, TRKOUT 0.65 2.00
mA
I
SNKTRKOUT
Sink current, TRKOUT 12
V
TRKDIF
Differential voltage from TRKIN to VO 18 V
GBWP
TRK
Tracking amplifier gain bandwidth product
(6)
1MHz
AVOL
TRK
Tracking amplifier open loop DC gain
(6)
60 dB
PROGRAMMABLE UVLO
V
UVLO
Undervoltage lockout threshold 1.285 1.332 1.378 V
I
UVLO
Hysteresis current 9.0 10.0 10.8 µA
INTERNALLY FIXED UVLO
V
UVLOFON
Fixed UVLO turn-on voltage at VDD pin -40°C ≤ T
A
< 125°C 3.850 4.150 4.425
V
V
UVLOFOFF
Fixed UVLO turn-off voltage at VDD pin 3.75 4.06 4.35
V
UVLOHYST
UVLO hysteresis at VDD pin 85 mV
THERMAL SHUTDOWN
T
SD
Thermal shutdown temerature
(6)
130 165
°C
T
SDHYST
Hysteresis
(6)
25
(5) Amplifier can track to the lesser of 6 V or (V
DD
× 0.95)
(6) Ensured by design. Not production tested.
5