User guide

CS1680
DS1055F1 5
Boost Gate Driver
Output Source Resistance Z
BST(Source)
- 19.9 - 
Output Sink Resistance Z
BST(Sink)
- 10.5 - 
Rise Time
C
L
=0.25nF
-11-ns
Fall Time
C
L
=0.25nF
-6-ns
Boost Current Sense
Peak Control Threshold V
BSTPK(th)
-0.33-V
Leading-edge Blanking t
BSTLEB
- 100 - ns
Delay to Output --100ns
Boost Protection
Overcurrent Protection (BOCP) V
BSTOCP(th)
-1.05-V
Overvoltage Protection (BOP)
(Note 1) K
BOP
- 93.75 - 
Clamp Turn-on
Clamp Turn-off
K
CLAMP(on)
K
CLAMP(off)
-
-
87.8
85.1
-
-


Buck Zero-Current Detect
BUCKZCD Threshold V
BUCKZCD(th)
- 200 - mV
BUCKZCD Blanking t
BUCKZCD
- 250 - ns
ZCD Sink Current
(Note 8) I
BUCKZCD
-2 - - mA
BUCKAUX Upper Voltage
I
BUCKZCD
=1mA
-V
DD
+0.6 - V
Buck Current Sense
Peak Control Threshold V
BUCKPK(th)
-0.525- V
Leading-edge Blanking t
BUCKLEB
- 250 - ns
Delay to Output --100ns
Buck Pulse Width Modulator
Minimum On Time T1
BUCK(min)
-0.55-s
Maximum On Time
CS1680-00
CS1680-02
T1
BUCK(max)
-
-
12.8
25.6
-
-
s
s
Minimum Switching Frequency - 625 - Hz
Maximum Switching Frequency - 200 - kHz
Buck Gate Driver
Output Source Resistance Z
BUCK(Source)
- 12.7 - 
Output Sink Resistance Z
BUCK(Sink)
-8.2-
Rise Time
C
L
=0.25nF
-7.0-ns
Fall Time
C
L
=0.25nF
-4.5-ns
Buck Protection
Overcurrent Protection (OCP) V
BUCKOCP(th)
-1.05-V
External Overtemperature Protection (eOTP), Boost Stage Constant, Peak Current
Maximum Pull-up Current Source I
CONNECT
-80-A
Conductance Accuracy
(Note 9) --±5
Conductance Offset
(Note 9) - ±250 - nS
Current Source Voltage Threshold V
CONNECT(th)
-1.25-V
Parameter Condition Symbol Min Typ Max Unit