ADP3208C ON Semiconductor, ADP3208C Datasheet - Page 5

• Manufacturer Part Number: ADP3208C
• Description: 7-bit,programmable,dual- Phase,mobile,cpu,synchronous Buck Controller
• Manufacturer: ON Semiconductor

Parameter
CURRENT CONTROL
CURRENT-SENSE AMPLIFIER
(CSAMP)
CURRENT MONITORING
and PROTECTION
CURRENT REFERENCE
CURRENT LIMITER (OCP)
CURRENT MONITOR
CSREF Crowbar Voltage
Threshold
CSREF Reverse Voltage
Threshold
PWRGD Low Voltage
PWRGD High, Leakage
Current
PWRGD Start-up Delay
PWRGD Latch-off Delay
PWRGD Propagation Delay
Crowbar Latch-off Delay
PWRGD Masking Time
CSREF Soft-stop Resistance
CSREF Bias Current
CSCOMP Voltage Range
CSCOMP Current
CSCOMP Slew Rate
Gain Bandwidth
IREF Voltage
Current Limit (OCP) Threshold
Current Limit Latch-off Delay
Current Gain Accuracy
IMON Clamp Voltage
CSSUM, CSREF Common-
CSSUM, CSREF Offset Voltage
CSSUM Bias Current
Mode Range
2
2
2
2
3
Symbol
V
V
V
I
T
T
T
T
V
I
I
I
I
GBW
V
V
I
V
PWRGD
BCSSUM
BCSRE
CSCOMPsource
CSCOMPsink
MON
SSPWRGD
LOFFPWRGD
PDPWRGD
LOFFCB
CBCSREF
RVCSREF
PWRGD
OSCSA
REF
LIMTH
MAXMON
/I
CSA
LIM
Conditions
Relative to FBRTN
Relative to FBRTN, Latch-off mode
CSREF falling
CSREF rising
I
V
Measured from CLKEN neg edge to PWRGD pos
edge
Measured from Out-off-Good-Window event to
Latch-off (switching stops)
Measured from Out-off-Good-Window event to
PWRGD neg edge
Measured from Crowbar event to Latch-off
(switching stops)
Triggered by any VID change or OCP event
Voltage range of interest
CSREF – CSSUM T
T
Operating Range
CSCOMP = 2 V
CSSUM forced 200 mV below CSREF
CSSUM forced 200 mV above CSREF
CSSUM forced 200 mV below CSREF
CSSUM forced 200 mV above CSREF
Non-inverting unit gain configuration
R
R
Measured from CSCOMP to CSREF, R
2-ph configuration, PSI = H
2-ph configuration, PSI = L
1-ph configuration
Measured from OCP event to PWRGD de-assertion
Measured from ILIMP to IMON
I
I
I
Relative to FBRTN, ILIMP = -30 uA
EN = L or Latch-off condition
C
PWRGD(SINK)
LIM
LIM
LIM
A
PWRDG
CSCOMP
FB
REF
Rev. 1 | Page 5 of 41 | www.onsemi.com
= 25 C
= −20 μA
= −10 μA
= −5 μA
= 1 kOhm
= 80 kΩ to set I
= 5 V
= 10 pF, Open Loop Configuration
= 4 mA
A
= –10 C to 85 C
REF
= 20 uA
LIM
= 4.5 kΩ,
Min
−350
−1.7
−0.5
−50
−120
1.55
−70
−32
9.5
9.4
9
1.57
0
0.05
−70
1.0
Typ
1.7
−300
−70
50
8
8
200
200
100
70
−750
1
10
−10
20
1.6
−95
−47.5
−95
8
10
10
10
ADP3208C
Max
1.78
−5
150
0.1
2
+1.7
+0.5
+50
+120
2
1.65
−115
−65
−115
10.5
10.7
11
1.15
Units
mV
mV
mV
μA
ms
ms
ns
ns
mV
mV
nA
nA
μA
mA
V/μs
V/μs
MHz
V
mV
mV
-
-
-
V
μs
Ω
V
V
mV
ms
V